<!DOCTYPE Article PUBLIC "-//Davenport//DTD DocBook V3.0//EN">
<!-- $Id: DNS-HOWTO.sgml,v 1.3 2001/09/02 09:41:09 yongjoo Exp $ -->

<Article lang="ko">

<ArtHeader>
<Title>DNS HOWTO </Title>

<authorgroup>
<collab><collabname>Nicolai Langfeldt</collabname></collab>
<collab><collabname>Jamie Norrish</collabname></collab>
<collab><collabname>and others.</collabname>
<affiliation>
<address>
<email>janl (at) linpro.no</email>
</address>
</affiliation>
</collab>

<othercredit role="translator">
<FirstName>ÁöÈ¯</FirstName>
<surname>±è</surname>
<affiliation>
<address>
<email>e4261 (at) hanmail.net</email>
http://www.freechal.com/linuxdocs
</address>
</affiliation>
</othercredit>
</authorgroup>

<PubDate>Version 3.1, $Date: 2001/09/02 09:41:09 $</PubDate>

<Abstract>

<Para>
HOWTO become a totally small time DNS admin.
</Para>

</Abstract>

</ArtHeader>

<Sect1>
<Title>¼­¹®</Title>

<!--
<Para>
Keywords: DNS, BIND, BIND 4, BIND 8, named, dialup, PPP, slip,
ISDN, Internet, domain, name, resolution, hosts, caching.
</Para>
-->

<Para>
ÀÌ¹®¼­´Â LDPÀÇ ÀÏºÎÀÔ´Ï´Ù.
</Para>

<Sect2>
<Title>¹ýÀûÈ¿·Â(¿ø¹®±×´ë·Î ½ÇÀ½)</Title>

<Para>
(C)opyright 1995-2001 Nicolai Langfeldt, Jamie Norrish &amp; Co. Do
not modify without amending copyright, distribute freely but retain
copyright message.
</Para>

</Sect2>

<Sect2>
<Title>µµ¿ò¿¡ ´ëÇÑ ½Å¿ë°ú ¿äÃ»</Title>

<Para>
ÀÌ ¹®¼­ ÃÊ¾ÈÀ» ¼öµµ ¾øÀÌ ÀÐ¾î ÁÖ°í ¸¹Àº Á¦¾ÈÀ» ÇØÁØ Arnt Gulbrandsen 
¾¾¿¡°Ô °¨»çÀÇ ¸»À» ÀüÇÏ´Â °ÍÀÌ ¼ø¼­¿¡ ¸ÂÀ» °Í °°´Ù. ¶ÇÇÑ e-mail·Î 
ÀÇ°ß°ú À¯¿ëÇÑ ³»¿ëÀ» º¸³½ ÁØ »ç¶÷µé¿¡°Ôµµ °¨»çÀÇ ¸»À» ÀüÇÑ´Ù.
</Para>

<Para>
ÀÌ ¹®¼­´Â ¿Ï°áµÈ ¹®¼­°¡ ¾Æ´Ï´Ù. DNS¸¦ ¼³Á¤ÇÏ¿© »ç¿ëÇÒ ¶§ ¹ß»ýÇÏ´Â ¹®Á¦Á¡ÀÌ³ª 
±×¿¡ µû¸¥ ÇØ°áÃ¥µéÀÌ ÀÖÀ» °ÍÀÌ´Ù. ±×·¯ÇÑ ³»¿ëµéÀº e-mail·Î º¸³» ÁØ´Ù¸é, ´ÙÀ½ 
¹ø¿¡´Â ´õ ÁÁÀº DNS-HOWTO°¡ ³ª¿Ã ¼ö ÀÖÀ» °ÍÀÌ´Ù. money³ª ÀÇ°ß ¶Ç´Â ÀÇ¹®Á¡Àº 
janl (at) math.uio.no ¾ÕÀ¸·Î º¸³» ÁÖ±æ ¹Ù¶õ´Ù. ¾Æ´Ï¸é ³» DNS Ã¥À» »ç±â ¹Ù¶õ´Ù. 
¾Æ´Ï¸é ¿©·¯ Á¤º¸¸¦ Ã£¾Æº¸±æ ¶ÇÇÑ ¹Ù¶õ´Ù. e-mailÀ» º¸³»±â Àü¿¡ ¹Ýµå½Ã ÀÚ½ÅÀÇ 
e-mail ÁÖ¼Ò°¡ ¿Ã¹Ù¸¥Áö È®ÀÎÇÏµµ·Ï ÇÑ´Ù. ±×·¡¾ß ´ä½ÅÀ» ¹ÞÀ» ¼ö ÀÖ´Ù´Â °ÍÀº 
´ç¿¬ÇÑ ÀÌ¾ß±â ÀÏ °ÍÀÌ´Ù. ¶ÇÇÑ ¸ÞÀÏÀ» º¸³»±â Àü¿¡ Áú¹®°ú ´ä ÀýÀ» ÀÐ¾î º¸±â ¹Ù¶õ´Ù. 
ÇÏ³ª´õ. ³ª´Â ³ë¸£¿þÀÌ¾î¿Í ¿µ¾î¸¸ ÇÒ ÁÙ ¾È´Ù´Â °Íµµ ¾Ë¾ÆµÎ±æ.
</Para>

<Para>
ÀÌ HOWTO¹®¼­´Â LDPÀÇ ÀÏºÎ·Î 1995³âºÎÅÍ ÀÖ¾ú°í 2000³â±îÁö °°Àº ÁÖÁ¦·Î ±ÛÀ» ½è´Ù. 
ÀÌ°ÍÀÌ HOWTO¹®¼­ÀÌ°í Ã¥¿¡ À¯»çÇÑ ³»¿ëÀÌ ¸¹¾Æµµ ÀÌ°ÍÀÌ ÀÌ°ÍÀú°Í Èñ¼®ÇÏ°Å³ª ½ÃÁßÀÇ 
Ã¥À» ¹è³¤°ÍÀÌ ¾Æ´ÔÀ» ¾Ë¾ÆÁÖ±æ ¹Ù¶õ´Ù. ±×¸®°í ÀÌÃ¥ÀÌ Âü°íÇÑ ¹®ÇåÀº ³¡¿¡¼­ È®ÀÎÇÒ 
¼ö ÀÖ´Ù. ÀÌ HOWTO¸¦ ÀÐ´Â ºÐµéÀÌ DNSÀÇ ¾î·Á¿îÁ¡À» ¿©±â¿¡¼­ ÇØ°áÇÏ±â¸¦ ¹Ù¶õ´Ù. ¶ÇÇÑ 
ÀÌ ¹®¼­´Â Ã¥À» º¸Á¶ÇÏ´Â °ÍÀÌÁö¸¸, ¹Ý´ë·Î ÀÌ ¹®¼­¸¦ º¸Á¶ÇÏ±â À§ÇØ Ã¥À» º¸´Â °æ¿ìµµ 
ÀÖÀ» °ÍÀÌ´Ù. HOWTO°¡ Ã¥À» »ý±â°Ô Çß°í Ã¥ÀÌ ÀÌ HOWTO ¹öÁ¯À» 3À¸·Î ¸¸µé¾ú´Ù. ³ª¿¡°Ô 
±âÈ¸¸¦ ÁØ Que ÃâÆÇ»ç¿¡ °¨»ç¸¦ ÇÏ´Â ¹ÙÀÌ´Ù.
</Para>

</Sect2>

<Sect2>
<Title>ÇåÁ¤</Title>

<Para>
ÀÌ HOWTO¸¦ Anne Line Norheim Langfeldt¿¡ ¹ÙÄ£´Ù. ±×³à´Â ÀÌ ¹®¼­¸¦ ÀÐ¾î º¸Áöµµ 
¾Ê°ÚÁö¸¸, ±×³à´Â Á¤¸»·Î Æ¯º°ÇÑ ¿©ÀÚÀÌ´Ù.
</Para>

</Sect2>

</Sect1>

<Sect1 id="intro">
<Title>¼Ò°³</Title>

<para>
<emphasis>DNS¶õ ¹«¾ùÀÎ°¡?</emphasis>

<Para>
 DNS´Â Domain Name ServerÀÌ´Ù. DNS´Â ¸ðµç ³Ý»ó¿¡ ¼ÓÇØÀÖ´Â ÄÄÇ»ÅÍ°¡ °¡Áö°í ÀÖ´Â 
ÀÌ¸§À» IPÁÖ¼Ò·Î ¹Ù²Ù¾î ÁÖ´Â ¿ªÇÒÀ» ÇÑ´Ù. ÀÌ°ÍÀº ÀÌ¸§À» IP·Î ¹Ù²Ù¾î ÁÖ±âµµ ÇÏ°í 
IP¸¦ ÀÌ¸§ÀÌ³ª ´Ù¸¥ °ÍÀ¸·Î ¹Ù²Ù¾î ÁÖ±âµµ ÇÑ´Ù(È¤Àº mappingÇÑ´Ù°íµµ ÇÑ´Ù). ÀÌ HOWTO 
¹®¼­´Â ¸®´ª½º¿¡¼­ Æ¯¼öÈ­µÈ ¸î°¡Áö ºÎºÐÀ» Æ÷ÇÔÇÑ À¯´Ð½º½Ã½ºÅÛÀÇ ÀÌ¿Í°°Àº mapping
¿ë·Ê¿¡ ´ëÇØ Á¤ÀÇÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
ÀÌ·¯ÇÑ mappingÀº ´Ü¼øÇÏ°Ô´Â<Literal> ftp.linux.org.</Literal>°°Àº ÄÄÇ»ÅÍÀÇ 
ÀÌ¸§°ú<Literal> 199.249.150.4</Literal> °°Àº IP ³Ñ¹ö(È¤Àº ¾îµå·¹½º)»çÀÌÀÇ 
Á¶ÇÕÀÌ¶ó°í º¼ ¼ö ÀÖ´Ù. ¶ÇÇÑ DNS´Â ´Ù¸¥ ¹æ½ÄÀÇ mappingµµ ÇÒ ¼ö ÀÖ´Âµ¥ ÀÌ°ÍÀº 
'reverse mapping'ÀÌ¶ó°í ÇÏ¸ç IP¸¦ ÄÄÇ»ÅÍ ÀÌ¸§À¸·Î ¹Ù²Ù¾î ÁÖ´Â °ÍÀÌ´Ù.
</Para>

<Para>
DNS´Â ³×Æ®¿öÅ© °ü¸® ºÎºÐ¿¡¼­ »ó´çÈ÷ ¸ðÈ£ÇÑ ºÎºÐÀÌÁö¸¸ ½ÇÁ¦·Î ±×·¸°Ô ¾î·ÆÁö´Â ¾Ê´Ù. 
ÀÌ ¹®¼­´Â ¸î°¡Áö ºÎºÐÀ» ¸íÈ®ÇÏ°Ô ÇÏ·Á°í ³ë·ÂÇÒ °ÍÀÌ´Ù. µµ¸ÞÀÎ¿¡ ´ëÇÑ 1Â÷ DNS¼­¹ö¿¡ 
´ëÇÑ ¼³Á¤°ú ÄÉ½¬¼­¹ö¸¦ Æ÷ÇÔÇØ¼­ °£´ÜÇÑ DNS name server¿¡ ´ëÇÑ ¼³Á¤ÀÛ¾÷¿¡ ´ëÇØ ±â¼úÇÒ 
°ÍÀÌ´Ù. ´õ º¹ÀâÇÑ ¼³Á¤Àº ÀÌ ¹®¼­ÀÇ Q&amp;AºÎºÐÀ» ÂüÁ¶ÇÏ±æ.... ÀÌ ¹®¼­¿¡ ¾ø´Â ºÎºÐÀº »ó¼¼ÇÑ 
¹®¼­¸¦ ÂüÁ¶ÇÏ±æ ¹Ù¶õ´Ù. ¸¶Áö¸· Àå¿¡ »ó¼¼ÇÑ ¹®¼­¿¡ ´ëÇÑ ºÎºÐÀ» ±â¼úÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
½ÃÀÛÇÏ±â Àü¿¡ telnetÀ» »ç¿ë°¡´ÉÇÏ°Ô ÇÏ¸ç, ´Ù¸¥ ³Ý»óÀÇ ¸ðµç ¿¬°áÀÌ °¡´ÉÇÏ°Ô ¼³Á¤ÀÌ µÇ¾ß ÇÑ´Ù. 
±×¸®°í<Literal> telnet 127.0.0.1</Literal> ÀÌ ½ÇÇà½Ã ÀÚ½ÅÀÇ ÄÄÇ»ÅÍ¿¡ ´ëÇÑ Á¤º¸¸¦ 
°¡Á®¿Í¾ß ÇÑ´Ù.(½ÇÇàÇØ º¸½Ã±æ) ¶ÇÇÑ ½ÃÀÛºÎºÐÀÎ<Literal> /etc/nsswitch.conf</Literal>,
<Literal> /etc/resolv.conf</Literal>, <Literal>/etc/hosts</Literal> ÆÄÀÏÀÌ 
¿Ã¹Ù¸£°Ô ¼³Á¤µÇ¾î¾ß ÇÑ´Ù. ¿©±â¿¡¼­´Â ÀÌµéÀÇ ±â´É¿¡ ´ëÇØ¼­´Â ¼³¸íÇÏÁö ¾Ê´Â´Ù. ÀÌ·¯ÇÑ Àü¹ÝÀûÀÎ 
±â´ÉÀÌ ¼öÇàÀÌ µÇÁö ¾Ê´Â´Ù¸é HowtoÀÇ Networking ºÎºÐÀ» ÂüÁ¶ÇÏ°í ÀÐ¾îº¸±æ ¹Ù¶õ´Ù.
(¸ð¸£¸é ¾Ë¾Æ¼­ °øºÎÇÏ¶ó´Â ¶æ°°±º....--.)
</Para>

<Para>
ÀÌ ¹®¼­¿¡¼­ 'ÄÄÇ»ÅÍ'´Â ÀÏ¹ÝÀûÀ¸·Î ÀÌ·¯ÇÑ DNS ¼³Á¤ÀÌ µÇ¾î ÀÖ´Â °ÍÀ» ÀÇ¹ÌÇÏ¸ç ±×¿ÜÀÇ ÀÏ¹ÝÀûÀÎ ÄÄÇ»ÅÍ¸¦ 
ÅëÄªÇÏ´Â ºÎºÐÀº ³×Æ®¿öÅ©¿Í ¹«°üÇÑ °æ¿ìÀÌ´Ù.
</Para>

<Para>
ÀÌ¸§ÁúÀÇ(name query)¸¦ ¸·´Â ¹æÈ­º®Àº Á¦°ÅµÇ¾ß ÇÏ¸ç Æ¯º°ÇÑ ¼³Á¤ÀÌ ¿ä±¸µÇ¸é ¿ª½Ã Q&amp;A¸¦ Âü°íÇÏ¶ó.
</Para>

<Para>
À¯´Ð½º »óÀÇ ³×ÀÓ¼­¹ö±â´ÉÀº<Literal>named</Literal>¶ó´Â ÇÁ·Î±×·¥¿¡ ÀÇÇØ ÀÌ·ç¾î Áø´Ù. 
ÀÌ°ÍÀº BIND ÆÐÅ°Áö¿¡ ÀÖ´Â °ÍÀÌ¸ç ISC(Internet Sotfware Consortium)ÀÌ Á¦°øÇÑ´Ù. ÀÌ 
<Literal>named</Literal>´Â °ÅÀÇ ¸ðµç ¸®´ª½º ÇÁ·Î±×·¥¿¡ Æ÷ÇÔµÇ¾î ÀÖ´Â °ÍÀÌ¸ç ÀÌ°ÍÀº 
ÀÏ¹ÝÀûÀ¸·Î<Literal> BIND</Literal> ÆÐÅ°Áö·Î ¼³Ä¡µÈ °æ¿ì
<Literal> /usr/sbin/named</Literal>ºÎºÐ¿¡ À§Ä¡ÇÏ°Ô µÈ´Ù.
</Para>

<Para>
¸¸¾à ÄÄÇ»ÅÍ¿¡ named°¡ ÀÖÀ¸¸é ¹Ù·Î »ç¿ëÀÌ °¡´ÉÇÏ´Ù. ¸¸¾à¿¡ ¼³Ä¡°¡ µÇÀÖÁö ¾Ê´Ù¸é 
<ULink URL="ftp://ftp.isc.org/isc/bind/src/">ftp://ftp.isc.org/isc/bind/src/</ULink>¿¡¼­ ÃÖ½Å ¹öÁ¯°ú ¼Ò½º¸¦ ±¸ÇÒ ¼ö ÀÖ´Ù. 
ÀÌ°ÍÀº BIND ¹öÁ¯ 8¿¡ ´ëÇÑ ¹®¼­ÀÌ´Ù. ±¸¹öÁ¯ÀÎ ¹öÁ¯4ÀÇ °æ¿ì´Â
<ULink URL="http://www.math.uio.no/~janl/DNS/">http://www.math.uio.no/~janl/DNS/</ULink>¿¡¼­ ÀÚ·á¸¦ ±¸ÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù. 
¸¸¾à ¹öÁ¯ÀÌ 8ÀÌ¶ó¸é namedÀÇ manpage¿¡¼­<Literal remap="tt"> named.conf</Literal>¸¦ ¾ð±ÞÇÒ °ÍÀÌ°í ¹öÁ¯ÀÌ 
4¶ó¸é<Literal remap="tt"> named.boot</Literal>¿¡ ´ëÇÑ ¾ð±ÞÀ» ÇÒ °ÍÀÌ´Ù. ¸¸¾à ¹öÁ¯ 4¸¦ °¡Áö°í ÀÖ´Ù¸é 
º¸¾ÈÀÇ Ãø¸éÀ» °í·ÁÇØ¼­ ¹öÁ¯ 8·Î ¹öÁ¯¾÷À» ÇØ¾ß ÇÒ °ÍÀÌ´Ù
</Para>

<Para>
DNS´Â ±¤¹üÀ§ÇÑ ³Ý»óÀÇ µ¥ÀÌÅÍº£ÀÌ½ºÀÌ´Ù. ¹«¾ùÀÌ »ðÀÔµÇ¾î¾ß ÇÏ´ÂÁö ½ÅÁßÇÏ°Ô °í·ÁÇØ¾ß ÇÑ´Ù. ¾µ¸ð¾ø´Â 
Á¤º¸°¡ µé¾î°£´Ù¸é º¸´Â ÀÌµé ¿ª½Ã ¾µ¸ð ¾ø´Â Á¤º¸¸¦ ¾ò°Ô µÈ´Ù. DNS¸¦ °£¼ÒÇÏ°í ÇÊ¿äÇÑ °ÍÀ¸·Î Ã¼¿ö¾ß ÇÏ¸ç, 
±×·¯¸é ÁÁÀº ¼­ºñ½º¸¦ ¹Þ°Ô µÉ °ÍÀÌ´Ù. »ç¿ë¹ý, À¯Áö¹ý, µð¹ö±ë¹ýÀ» ¹è¿ì¸é Àß¸øµÈ °ü¸®·Î ÀÎÇÑ ³Ý»ó¿¡¼­ÀÇ 
½ÇÆÐ¸¦ ¹æÁöÇÏ´Â ÈÇ¸¢ÇÑ À¯Áö¸¦ ÇÏ°Ô µÉ °ÍÀÌ´Ù.
</Para>

<tip>
<para>ÀÌ·¯ÇÑ ÆÄÀÏ¿¡ ´ëÇÑ ¸ðµç ¹é¾÷ ÆÄÀÏÀ» ¸¸µå½Ã¿À. ±×·¡¼­ ÀÛ¾÷ÀÌÈÄ 
ÀÛµ¿ÀÌ µÇÁö ¾ÊÀ¸¸é ´Ù½Ã º¹±¸ÇÒ ¼ö ÀÖµµ·Ï ´ëºñÇÏ½Ã±æ....
</para>
</tip>

</Sect1>

<Sect1 id="caching">
<Title>caching name serverÀÇ ±¸Ãà</Title>

<Para>
<Emphasis remap="bf">¿ì¼± DNS ¼³Á¤Àº ´ÙÀÌ¾ó¾÷, ÄÉÀÌºí¸ðµ©, ADSL »ç¿ëÀÚµé¿¡°Ô ¸Å¿ì À¯¿ëÇÏ´Ù.</Emphasis>
</Para>

<Para>
·¹µåÇòÀÌ³ª ·¹µåÇò ±â¹Ý ¹èÆ÷º»Àº ÀÌ¹Ì <Literal remap="tt">bind</Literal>³ª
<Literal remap="tt">bind-utils</Literal>¿Í caching nameserver°¡ ¼³Ä¡µÇ¾ú´Ù. µ¥ºñ¾È »ç¿ëÀÚ¶ó¸é 
<Literal remap="tt">bind</Literal>¿Í<Literal remap="tt">bind-doc</Literal>°¡ ¼³Ä¡µÇ¾úÀ» °ÍÀÌ´Ù. 
¹°·Ð ¼³Ä¡½Ã ÀÌ·± ¹®¼­Ã³·³ ÀÚ¼¼ÇÏ°Ô ¼³Ä¡¿¡ ´ëÇØ ³ª¿ÀÁö ¾ÊÀ» °ÍÀÌ°í, ¼³Ä¡µÈ ÆÄÀÏÀ» ¼³Á¤ÇÏ´Â ¹ýÀ» 
°°ÀÌ ÀÐ¾î¾ß ÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
caching nameserver´Â ´ÜÁö ÀÌ¸§ÁúÀÇ¿¡ ´ëÇÑ ´ë´ä¸¸À» Ã£°í ±× ÇØ´äÀ» ±â¾ïÇØ¼­ ´ÙÀ½¿¡ ÇÊ¿äÇÒ¶§ »ç¿ë°¡´ÉÇÏ°Ô 
ÇÑ´Ù. ÀÌ°ÍÀº ±â´Ù¸®´Â ½Ã°£À» ´ÜÃà½ÃÅ³ ¼ö ÀÖ´Ù.
</Para>

<Para>
¿ì¼± <Literal remap="tt">/etc/named.conf</Literal> (Debian: 
<Literal remap="tt">/etc/bind/named.conf</Literal>)°¡ ÇÊ¿äÇÏ¸ç ÀÌ°ÍÀº named°¡ ±¸µ¿µÉ ¶§ ÇÊ¿äÇÑ 
°ÍÀÌ´Ù.Æ÷ÇÔµÈ ³»¿ëÀ» »ìÆìº¸ÀÚ
</Para>

<Para>

<ProgramListing>
// Config file for caching only name server

options {
	directory "/var/named";

	// Uncommenting this might help if you have to go through a
	// firewall and things are not working out.  But you probably
	// need to talk to your firewall admin.

	// query-source port 53;
};

zone "." {
        type hint;
        file "root.hints";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "pz/127.0.0";
};
</ProgramListing>

</Para>

<Para>
¸®´ª½º ¹èÆ÷º»ÀÌ ¿©±â¿¡¼­ ¾ð±ÞµÇ´Â ¸ðµç Á¾·ùÀÇ ÆÄÀÏÀÌ¸§°ú ´Ù¸¥ ÀÌ¸§À» ¾µÁöµµ ¸ð¸¦ ÀÏÀÌÁö¸¸ ¾ÈÀÇ 
³»¿ëÀ» À§¿Í °°ÀÌ ¸ðµÎ °°´Ù.
</Para>

<Para>
'<Literal remap="tt">directory</Literal>' :
namedÇÁ·Î±×·¥ÀÌ ¼³Á¤ ÆÄÀÏÀ» Ã£´Â À§Ä¡¸¦ ÁöÁ¤ÇØ ÁØ´Ù. named¿¡ °ü·ÃµÈ ÆÄÀÏµéÀº À§¿Í °°´Ù. 
¿¹¸¦ µé¾î ÀÌÈÄ¿¡<Literal remap="tt"> pz</Literal>¶õ µð·ºÅä¸® °¡ ³ª¿À¸é ±×°ÍÀº 
<Literal remap="tt">/var/named/pz</Literal>¶ó´Â °ÍÀ» ÀÇ¹ÌÇÏ´Â °ÍÀÏ °ÍÀÌ´Ù. À§ÀÇ ¿¹½Ã¿Í °°Àº 
¼³Á¤ÀÌ ÀÏ¹ÝÀûÀÎ ¼³Á¤ÀÌ´Ù.
</Para>

<Para>
<Literal remap="tt">/var/named/root.hints</Literal>¶ó´Â ÆÄÀÏÀÌ ¾È¿¡ ÁöÁ¤µÇ ÀÖ´Ù. 
<Literal remap="tt">/var/named/root.hints</Literal>´Â ¾Æ·¡ÀÇ ³»¿ëÀ» Æ÷ÇÔÇØ¾ß ÇÑ´Ù. (¸¸¾à ÀÌ 
¹®¼­¿¡¼­ ÀÌ ³»¿ëµéÀ» Àß¶ó¼­ Ã·ºÎÇÏ°Ô µÈ´Ù¸é, ÆÄÀÏ ¾Õ¿¡ ÀÖ´Â °ø¹éµéÀ» Á¦°ÅÇÏ±â¸¦ ¹Ù¶õ´Ù. ¸ðµç 
¶óÀÎÀÇ ½ÃÀÛÀº °ø¹éÀÌ ¾ø°Ô ±¸¼ºÀÌ µÇ¾î ÀÖ´Ù. ¸î¸î ¹®¼­ ÇÁ·Î±×·¥µéÀº ÀÎÀ§ÀûÀ¸·Î ÀÌ·¯ÇÑ °ø¹éµéÀ» 
¸¸µé±âµµ ÇÏ´Âµ¥ ¸ðµç ÃÊ±â °ø¹éµéÀº Á¦°ÅµÇ¾ß ÇÑ´Ù.
</Para>

<Para>

<ProgramListing>
;
; There might be opening comments here if you already have this file.
; If not don't worry.
;
.                       6D IN NS        M.ROOT-SERVERS.NET.
.                       6D IN NS        I.ROOT-SERVERS.NET.
.                       6D IN NS        E.ROOT-SERVERS.NET.
.                       6D IN NS        D.ROOT-SERVERS.NET.
.                       6D IN NS        A.ROOT-SERVERS.NET.
.                       6D IN NS        H.ROOT-SERVERS.NET.
.                       6D IN NS        C.ROOT-SERVERS.NET.
.                       6D IN NS        G.ROOT-SERVERS.NET.
.                       6D IN NS        F.ROOT-SERVERS.NET.
.                       6D IN NS        B.ROOT-SERVERS.NET.
.                       6D IN NS        J.ROOT-SERVERS.NET.
.                       6D IN NS        K.ROOT-SERVERS.NET.
.                       6D IN NS        L.ROOT-SERVERS.NET.
;
M.ROOT-SERVERS.NET.     6D IN A         202.12.27.33
I.ROOT-SERVERS.NET.     6D IN A         192.36.148.17
E.ROOT-SERVERS.NET.     6D IN A         192.203.230.10
D.ROOT-SERVERS.NET.     6D IN A         128.8.10.90
A.ROOT-SERVERS.NET.     6D IN A         198.41.0.4
H.ROOT-SERVERS.NET.     6D IN A         128.63.2.53
C.ROOT-SERVERS.NET.     6D IN A         192.33.4.12
G.ROOT-SERVERS.NET.     6D IN A         192.112.36.4
F.ROOT-SERVERS.NET.     6D IN A         192.5.5.241
B.ROOT-SERVERS.NET.     6D IN A         128.9.0.107
J.ROOT-SERVERS.NET.     6D IN A         198.41.0.10
K.ROOT-SERVERS.NET.     6D IN A         193.0.14.129
L.ROOT-SERVERS.NET.     6D IN A         198.32.64.12
</ProgramListing>

</Para>

<Para>
ÀÌ ÆÄÀÏÀº ¼¼»ó¿¡ Á¸ÀçÇÏ´Â root name server¿¡ ´ëÇÏ¿© ±â¼úÇØ ³õ´Â´Ù. ÀÌ ¼­¹öµéÀº ½Ã°£¸¶´Ù 
¹Ù²î°í Ç×»ó ÇöÀç »óÅÂ·Î À¯ÁöµÇ¾ß ÇÑ´Ù. À¯Áö¼½¼Ç(maintain section)¿¡¼­ ¾î¶² ¹æ½ÄÀ¸·Î 
¾÷µ¥ÀÌÆ®°¡ ÀÌ·ç¾î Áö´ÂÁö È®ÀÎÇÏ±æ....
</Para>

<Para>
<Literal remap="tt">named.conf</Literal>ÀÇ ¸¶Áö¸· ºÎºÐÀÎ <Literal remap="tt">zone</Literal>
ºÎºÐ¿¡ ´ëÇØ¼­´Â ¸¶Áö¸· Àå¿¡ ±â¼úÇØ ³õ±â·Î ÇÑ´Ù. Áö±ÝÀº ´ÜÁö<Literal remap="tt"> pz</Literal> 
µð·ºÅä¸® ¾È¿¡ ÀÖ´Â<Literal remap="tt"> 127.0.0</Literal>ÀÌ¶ó´Â ÆÄÀÏ ±¸¼º¿¡ ´ëÇØ º¸±â·Î ÇÑ´Ù.
(<Emphasis>´©Â÷ ÀÌ¾ß±â ÇÏÁö¸¸ Àß¶ó ³ÖÀ» ½Ã ÃÊ±â °ø¹éÀº Á¦¿ÜÇÏ¶ó....</Emphasis>)
</Para>

<Para>

<ProgramListing>
$TTL 3D
@               IN      SOA     ns.linux.bogus. hostmaster.linux.bogus. (
				1       ; Serial
				8H	; Refresh
				2H      ; Retry
				4W	; Expire
				1D)	; Minimum TTL
			NS      ns.linux.bogus.
1			PTR	localhost.
</ProgramListing>

</Para>

<Para>
´ÙÀ½À¸·Î<Literal remap="tt">/etc/resolv.conf</Literal>ºÎºÐÀ» È®ÀÎ ÇÏµµ·Ï ÇÏÀÚ.
<Para>

<ProgramListing>
search subdomain.your-domain.edu your-domain.edu
nameserver 127.0.0.1
</ProgramListing>

</Para>

<Para>
'<Literal remap="tt">search</Literal>'ºÎºÐÀº ¿¬°áÇÏ°íÀÚ ÇÏ´Â È£½ºÆ® ÀÌ¸§Àº ¾î´À µµ¸ÞÀÎ¿¡¼­ 
Ã£¾ÆÁ®¾ß ÇÏ´Â°¡¸¦ °áÁ¤ÇØ ÁØ´Ù.`<Literal remap="tt">nameserver</Literal>'ºÎºÐÀº nameserverÀÇ 
ÁÖ¼ÒºÎºÐÀ» ³ªÅ¸³»´Âµ¥ À§¿Í °°Àº °æ¿ì´Â named°¡ ±¸µ¿µÇ´Â ¼­¹ö ÀÚ½ÅÀ» ÀÇ¹ÌÇÑ´Ù.(127.0.0.1 ÀÌ 
Á¤»óÀÌ´Ù. ´Ù¸¥ ÄÄÇ»ÅÍµéÀÌ ¸¶Âù°¡Áö·Î ÀÌ ÁÖ¼Ò¸¦ °¡Áö°í ÀÖ´Ù°í ÇØµµ ¹®Á¦µÉ °Í ¾ø´Ù.) ¿øÇÑ´Ù¸é 
`<Literal remap="tt">nameserver</Literal>'ºÎºÐ¿¡ ¿©·¯ nameserverµéÀ» ¾µ ¼öµµ ÀÖ´Ù. 
(Note1:named µ¥¸óÀÌ ÀÌ ÆÄÀÏÀ» ÀÐ´Â °ÍÀº ¾Æ´Ï´Ù. named°¡ ÀÛµ¿ÇÏ´Â °ÍÀ» ÀÌ¿ëÇÏ´Â resolverµéÀÌ 
ÀÐ´Â´Ù, Note2: ÀÌ ÆÄÀÏ(resolv.conf)¿¡¼­ domainÀÌ¶õ ¿ë¾î°¡ »ç¿ëµÈ´Ù. ±×·¯³ª "search"¿Í "domain"ÀÌ 
°°ÀÌ »ç¿ëµÇÁø ¾Ê´Â´Ù. µÑÁß ÇÏ³ª¸¸ÀÌ ÀÛµ¿ÇÒ °ÍÀÌ´Ù.)
</Para>

<Para>
ÀÌ·¯ÇÑ ÆÄÀÏÀÇ ÀÛµ¿À» È®ÀÎÇÏ±â À§ÇØ¼­:
¸¸¾à client°¡ <Literal remap="tt">foo</Literal>¶ó´Â °ÍÀ» Ã£´Â´Ù¸é,
<Literal remap="tt">foo.subdomain.your-domain.edu</Literal>À» ¿ì¼± È®ÀÎÇÏ°í, ±×¸®°í ³ª¼­ 
<Literal remap="tt">foo.your-domain.edu</Literal>, ¸¶Áö¸·À¸·Î <Literal remap="tt">foo</Literal>. ¸¦ 
Ã£°Ô µÈ´Ù. searchºÎºÐ¿¡¼­ ³Ê¹«¸¹Àº µµ¸ÞÀÎÀ» ³Ö±â ¾Ê´Â°Ô ÁÁ´Ù. °á±¹ ±âÀçµÈ ¸ðµç ºÎºÐÀ» Ã£´Âµ¥ 
½Ã°£ÀÌ ¼Ò¿äµÇ±â ¶§¹®ÀÌ´Ù.
</Para>

<Para>
ÀÌ ¿¹¿¡¼­ <Literal remap="tt">subdomain.your-domain.edu</Literal>¿¡ ¼ÓÇØÀÖ´Ù°í º¼¶§, ¿©·¯ºÐµéÀÇ 
ÄÄÇ»ÅÍ´Â <Literal remap="tt">your-machine.subdomain.your-domain.edu</Literal>¶ó°í ºÒ¸®°Ô µÉ °ÍÀÌ´Ù. 
ÀÌ·¯ÇÑ search ¶óÀÎ¿¡ ¿©·¯ºÐµéÀÇ TLD(Top Level Domain, ¿¹¸¦µé¾î<Literal remap="tt">edu</Literal>)À» 
Æ÷ÇÔÇÏ¸é ¾ÈµÈ´Ù. ¸¸¾à ´Ù¸¥ µµ¸ÞÀÎÀ» ¿¬°áÇÏ·Á¸é ¿¹½Ã¿Í °°ÀÌ Ãß°¡¿¬°áÇÏ¸é µÈ´Ù.
</Para>

<Para>

<ProgramListing>
search subdomain.your-domain.edu your-domain.edu other-domain.com
</ProgramListing>

</Para>

<Para>
Á¤È®È÷ ÀÌ¾ß±â ÇÑ´Ù¸é ÀÌ·± ¿¹¸¦ ¹ÙÅÁÀ¸·Î ½ÇÁ¦ µµ¸ÞÀÎ¸íÀ» ½á¾ßÇÑ´Ù. µµ¸ÞÀÎ ¸í ¸¶Áö¸·¿¡ Á¡ÀÌ ¾ø´Ù´Â 
°ÍÀ» À¯ÀÇÇÏÀÚ. Áß¿äÇÏ´Ù. ´Ù½Ã »ó±âÇÏ±æ....
</Para>

<Sect2 id="starting">
<Title>namedÀÇ ½ÃÀÛ</Title>

<Para>
ÀÌÁ¦ named¸¦ ½ÃÀÛÇÒ ½Ã°£ÀÌ´Ù. ¸¸¾à¿¡ ÀüÈ­Á¢¼Ó½ÄÀÌ¸é Á¢¼ÓºÎÅÍ ÇØ¶ó. 
'<Literal remap="tt">ndc start</Literal>'¶ó°í ÄÚµùÇÏ°í ½ÇÇàÇØ º¸±æ... ¿É¼ÇÀº ¾øÀÌ ½ÇÇàÇÑ´Ù. 
µ¥¸óÀÌ »ý¼ºµÇÁö ¾ÊÀ¸¸é '<Literal remap="tt">/usr/sbin/ndc start</Literal>'¶ó°í ÄÚµùÇØ¼­ ½ÇÇàÇØ 
º¸½Ã±â¸¦. ±×·¡µµ ¾ÈµÇ¸é Q&amp;A¸¦ ÂüÁ¶ÇÏ¶ó. named°¡ ±¸µ¿µÇ´Â µ¿¾È¿¡ <Literal remap="tt">syslog</Literal>
ÆÄÀÏÀ» º¸¸é ÀÌ·¯ÇÑ ½ÄÀÇ °á°ú¸¦ º¸°Ô µÉ °ÍÀÌ´Ù.(º¸Åë ÀÌ logÆÄÀÏÀº 
<Literal remap="tt">/var/adm/messages</Literal>¾È¿¡ ÀÖ°Å³ª<Literal remap="tt">/var/log</Literal>
¾È¿¡ À§Ä¡ÇÏ°Ô µÈ´Ù. ÀÌ °á°ú¸¦ º¸·Á¸é '<Literal remap="tt">tail -f /var/log/messages</Literal>' ¸¦ 
ÀÔ·ÂÇÏ¸é µÈ´Ù. 
</Para>

<Para>
(\Àº ¿¬°áµÇ´Â ´ÙÀ½ÁÙÀ» ÀÌ¾ß±âÇÑ´Ù.)
</Para>

<Para>

<Screen>
Dec 15 23:53:29 localhost named[3768]: starting.  named 8.2.2-P7 \
		Fri Nov 10 04:50:23 EST 2000 ^Iprospector@porky.\
		devel.redhat.com:/usr/src/bs/BUILD/bind-8.2.2_P7/\
		src/bin/named
Dec 15 23:53:29 localhost named[3768]: hint zone "" (IN) loaded\
		(serial 0)
Dec 15 23:53:29 localhost named[3768]: Zone "0.0.127.in-addr.arpa"\
		(file pz/127.0.0): No default TTL set using SOA\
		minimum instead
Dec 15 23:53:29 localhost named[3768]: master zone\
		"0.0.127.in-addr.arpa" (IN) loaded (serial 1)
Dec 15 23:53:29 localhost named[3768]: listening on [127.0.0.1].53 (lo)
Dec 15 23:53:29 localhost named[3768]: listening on [10.0.0.129].53\
		(wvlan0)
Dec 15 23:53:29 localhost named[3768]: Forwarding source address is\
		[0.0.0.0].1034
Dec 15 23:53:29 localhost named[3769]: Ready to answer queries.
</Screen>

</Para>

<Para>
¸¸¾à ¿©±â¿¡ ¿¡·¯ ¸Þ½ÃÁö°¡ ³ª¿Â´Ù¸é ¹º°¡ ½Ç¼ö°¡ ÀÖ´Â °ÍÀÌ´Ù. named °¡ À§ ¿¹¿¡¼­Ã³·³ 
³ª¿À´Â ÆÄÀÏµéÀ» ÁöÁ¤ÇØ ÁÖ±â ¶§¹®¿¡ ¿¡·¯½Ã ´Ù½Ã ¿øÁ¡À¸·Î µ¹¾Æ°¡¼­ ¿©±â¿¡ ³ª¿À´Â 
ÆÄÀÏÀ» Ã¼Å©ÇÏµµ·Ï ÇÏÀÚ.
</Para>

<Para>
´ÙÀ½Àº ¼Â¾÷µÈ ºÎºÐÀ» Ã¼Å©ÇØ º¸µµ·Ï ÇÑ´Ù. ÀüÅëÀûÀ¸·Î <Literal remap="tt">nslookup</Literal>
ÆÄÀÏÀ» »ç¿ëÇßÁö¸¸ ¿äÁòÀº <Literal remap="tt">dig</Literal> dig¸¦ »ç¿ëÇÑ´Ù.
</Para>

<Para>

<Screen>
$ dig -x 127.0.0.1       

; &#60;&#60;&#62;&#62; DiG 8.2 &#60;&#60;&#62;&#62; -x 
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;      1.0.0.127.in-addr.arpa, type = ANY, class = IN

;; ANSWER SECTION:
1.0.0.127.in-addr.arpa.  1D IN PTR  localhost.

;; AUTHORITY SECTION:
0.0.127.in-addr.arpa.   1D IN NS        ns.penguin.bv.

;; Total query time: 30 msec
;; FROM: lookfar to SERVER: default -- 127.0.0.1
;; WHEN: Sat Dec 16 00:16:12 2000
;; MSG SIZE  sent: 40  rcvd: 110

</Screen>

</Para>

<Para>
ÀÌ·¯ÇÑ ½ÄÀ¸·Î ³ª¿Â´Ù¸é Á¦´ë·Î µ¿ÀÛÇÏ´Â °ÍÀÌ´Ù. ±×·¸Áö ¾ÊÀ¸¸é µ¹¾Æ°¡¼­ ´Ù½Ã 
Ã³À½ºÎÅÍ Ã¼Å©ÇØ º¸µµ·Ï. <Literal remap="tt">named.conf</Literal>¸¦ ¼öÁ¤ÇÒ¶§ ¸¶´Ù 
<Literal remap="tt">ndc restart</Literal>¸¦ ¼öÇàÇØ¾ß ÇÑ´Ù.
</Para>

<Para>
ÀÌÁ¦ ÁúÀÇ¸¦ ´øÁ®º¸ÀÚ. ´ç½Å°ú °¡±îÀÌ ÀÖ´Â ÄÄÇ»ÅÍ¸¦ Á¶»çÇØ ºÁ¶ó. ³ª´Â ¿À½½·Î´ëÇÐÀÇ 
<Literal remap="tt">pat.uio.no</Literal>°¡ Á¦ÀÏ °¡±õ´Ù.
</Para>

<Para>

<Screen>
$ dig pat.uio.no

; &#60;&#60;&#62;&#62; DiG 8.2 &#60;&#60;&#62;&#62; pat.uio.no 
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
;; QUERY SECTION:
;;      pat.uio.no, type = A, class = IN

;; ANSWER SECTION:
pat.uio.no.             1D IN A         129.240.130.16

;; AUTHORITY SECTION:
uio.no.                 1D IN NS        nissen.uio.no.
uio.no.                 1D IN NS        ifi.uio.no.
uio.no.                 1D IN NS        nn.uninett.no.

;; ADDITIONAL SECTION:
nissen.uio.no.          1D IN A         129.240.2.3
ifi.uio.no.             1H IN A         129.240.64.2
nn.uninett.no.          1D IN A         158.38.0.181

;; Total query time: 112 msec
;; FROM: lookfar to SERVER: default -- 127.0.0.1
;; WHEN: Sat Dec 16 00:23:07 2000
;; MSG SIZE  sent: 28  rcvd: 162
</Screen>

</Para>

<Para>
¿©±â¿¡¼­ dig´Â named¿¡°Ô <Literal remap="tt">pat.uio.no</Literal>¶ó°í ¸íÄªµÈ ±â°è¸¦ 
Ã£À¸¶ó°í ¿äÃ»ÇÏ°Ô µÇ°í ±×·¯¸é <Literal remap="tt">root.hints</Literal>ÆÄÀÏ¿¡ ¸í½ÃµÈ 
name serverµé Áß¿¡ ÇÏ³ª¿¡ Á¢¼ÓÇÏ°Ô µÇ¸ç, ±×°÷À¸·Î ºÎÅÍ µµ´ÞÇÏ´Â ¹æ¹ýÀ» Áú¹®ÇÑ´Ù. 
°á°ú¸¦ ¾ò±â Àü¿¡ ¾à°£ÀÇ ½Ã°£ÀÌ °É¸± ¼öµµ ÀÖ´Âµ¥ ÀÌ°ÍÀº 
<Literal remap="tt">/etc/resolv.conf</Literal> ¿¡ ÁöÁ¤µÈ ¸ðµç µµ¸ÞÀÎÀ» Ã£À» °æ¿ì°¡ ÀÖ±â 
¶§¹®ÀÌ´Ù. flag: ºÎºÐÀÇ aaºÎºÐÀ» ÁÖ¸ñÇÏ±æ. ÀÌ°ÍÀº ÁúÀÇ¿¡ ´ëÇÑ °á°ú°¡ ÀÎÁõµÇ¾ú´Ù´Â °ÍÀ» 
ÀÇ¹ÌÇÑ´Ù. ´Ù½Ã ¸»ÇÏ¸é ÀÎÁõµÈ ¼­¹ö·Î ºÎÅÍ °»½ÅÀÌ µÇ¾ú´Ù´Â °ÍÀ» ÀÇ¹ÌÇÑ´Ù. ´ÙÀ½¿¡ ÀÌ 
ÀÎÁõºÎºÐ¿¡ ´ëÇØ ´Ù½Ã ¼³¸íÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
¸¸¾à ´Ù½Ã ¶È°°Àº ÁúÀÇ¸¦ º¸³½´Ù¸é ´Ù¸§°ú °°Àº °á°ú¸¦ ¾ò°Ô µÉ °ÍÀÌ´Ù.
</Para>

<Para>

<Screen>
$ dig pat.uio.no

; &#60;&#60;&#62;&#62; DiG 8.2 &#60;&#60;&#62;&#62; pat.uio.no 
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
;; QUERY SECTION:
;;      pat.uio.no, type = A, class = IN

;; ANSWER SECTION:
pat.uio.no.             23h59m58s IN A  129.240.130.16

;; AUTHORITY SECTION:
UIO.NO.                 23h59m58s IN NS  nissen.UIO.NO.
UIO.NO.                 23h59m58s IN NS  ifi.UIO.NO.
UIO.NO.                 23h59m58s IN NS  nn.uninett.NO.

;; ADDITIONAL SECTION:
nissen.UIO.NO.          23h59m58s IN A  129.240.2.3
ifi.UIO.NO.             1d23h59m58s IN A  129.240.64.2
nn.uninett.NO.          1d23h59m58s IN A  158.38.0.181

;; Total query time: 4 msec
;; FROM: lookfar to SERVER: default -- 127.0.0.1
;; WHEN: Sat Dec 16 00:23:09 2000
;; MSG SIZE  sent: 28  rcvd: 162
</Screen>

</Para>

<Para>
ÁúÀÇ¿¡ ´ëÇÑ °á°ú ºÎºÐ¿¡¼­ "flag"ºÎºÐÀÇ "aa"°¡ ¾ø´Ù´Â »ç½ÇÀ» ÁÖ¸ñÇÏ±æ. 
ÀÌ°ÍÀº cache°¡ Á¤º¸¸¦ °¡Áö°í ÀÖÀ»¶§ ´õÀÌ»ó named°¡ ÁúÀÇ¸¦ ÇÏ±â À§ÇØ 
³×Æ®¿öÅ© ¹ÛÀ¸·Î ³ª°¡Áö ¾Ê´Â´Ù´Â °ÍÀ» ÀÇ¹ÌÇÑ´Ù. ÀúÀåµÈ Á¤º¸°¡ ¿À·¡ µÇ¾úÀ» 
¼öµµ ÀÖ´Ù. ¸Å¿ì Èñ¹ÚÇÏ°ÚÁö¸¸ °¡²û ÀÌ·¯ÇÑ Á¤º¸¸¦ ÅëÇØ¼­ "aa"°¡ ¾ø´ÂÁö¸¦ 
È®ÀÎÇØ¾ß ÇÒ °ÍÀÌ´Ù. ÀÌÁ¦ ÀÚ½ÅÀÇ cache¼­¹ö°¡ ÀÛµ¿ÇÑ´Ù´Â °ÍÀ» ¾Ë°Ô µÇ¾ú´Ù.
</Para>

</Sect2>

<Sect2>
<Title>Resolvers</Title>

<Para>
Ç¥ÁØ C API°¡ ±¸ÇöµÇ´Â ¸ðµç Á¾·ùÀÇ OSµéÀº gethostbyname °ú gethostbyaddr¸¦ È£ÃâÇÑ´Ù. 
ÀÌ·¯ÇÑ ÇÔ¼ö(¾Æ¸¶µµ API±¸Çö ÇÔ¼öÁ¾·ùÀÎµí ÇÕ´Ï´Ù.) ´Â ´Ù¸¥ ¿©·¯ ¼Ò½º·Î ºÎÅÍ Á¤º¸µéÀ» 
°¡Á®¿À°Ô µÈ´Ù. °¡Á®¿Â ÀÌ·± Á¤º¸µéÀº ¸®´ª½º³ª ´Ù¸¥ À¯´Ð½º¿¡¼­´Â 
<Literal remap="tt">/etc/nsswitch.conf</Literal> ºÎºÐ¿¡ ¼³Á¤µÇ¾î ÀÖ´Â µ¥·Î ¹Þ°ÔµÈ´Ù. 
ÀÌ°ÍÀº ¿©·¯ ´Ù¸¥ ÆÄÀÏÀÌ³ª DB¿¡¼­ ¼­·Î ´Ù¸¥ Á¾·ùÀÇ µ¥ÀÌÅÍ¸¦ ¾ò´Â °ÍÀÌ´Ù. ¸ÇÀ§¿¡ ÀÚ¼¼ÇÑ ÁÖ¼®ÀÌ 
ÀÖÀ¸¸ç ¹Ýµå½Ã ÀÐ±â¸¦ ¹Ù¶õ´Ù. '<Literal remap="tt">hosts:</Literal>'·Î ½ÃÀÛÇÏ´Â ¶óÀÎÀ» 
Ã£¾Æ º¸ÀÚ. °Å±â¿¡ ÀÌ·¸°Ô ¾²¿© ÀÖÀ» °ÍÀÌ´Ù. 
</Para>

<Para>

<ProgramListing>
hosts:      files dns
</ProgramListing>

</Para>

<Para>
(<Emphasis>º¹»çÇÒ °æ¿ì »ý±â´Â °ø¹éÀ» ÀØÁö ¸»±â¸¦... ÀÌÁ¦ ´õ ÀÌ¾ß±â ÇÏÁö ¾ÊÀ» °ÍÀÌ´Ù.</Emphasis>)
</Para>

<Para>
¸¸¾à '<Literal remap="tt">hosts:</Literal>'¶ó´Â ¶óÀÎÀÌ º¸ÀÌÁö ¾Ê´Â´Ù¸é À§¿Í°°ÀÌ ±âÀç ÇØ ³õ±â¸¦... 
ÀÌ°ÍÀº ÇÁ·Î±×·¥µéÀÌ ¿ì¼± <Literal remap="tt">/etc/hosts</Literal>¸¦ Ã£¾Æ¾ß ÇÑ´Ù´Â °ÍÀ» ÀÌ¾ß±â 
ÇÏ¸ç ±×¸®°í <Literal remap="tt">resolv.conf</Literal>¿¡ ÁöÁ¤µÈ DNS¸¦ Ã¼Å©ÇÑ´Ù´Â ÀÌ¾ß±â ÀÌ´Ù.
</Para>

</Sect2>

<Sect2>
<Title>ÃàÇÏ</Title>

<Para>
caching name server ¼³Á¤¹ýÀ» ¾Ë°Ô µÇ¾ú´Ù. ÀÚÃàÇÏ´Â ÀÇ¹Ì¿¡¼­ ¸ÆÁÖ³ª ¿ìÀ¯, ¾Æ´Ï¸é ´Ù¸¥ °É·Î ÃàÇÏÇÏ½Ã±æ...
</Para>

</Sect2>

</Sect1>

<Sect1>
<Title>Forwarding</Title>

<Para>
´ë±Ô¸ð·Î Àß Á¶Á÷µÈ ÇÐ³»¸ÁÀÌ³ª ÀÎÅÍ³Ý ¼­ºñ½º¾÷Ã¼(ISP)ÀÇ ³×Æ®¿öÅ©¸¦ º¸¸é °¡²û DNS¸¦ 
Æ÷¿öµù ¼¼ÆÃÇØ¼­ ³»ºÎ ³×Æ®¿öÅ©¿¡¼­ÀÇ ºÎÇÏ¿Í ¿ÜºÎ ³×Æ®¿öÅ©·Î ³ª°¡´Â ºÎÇÏ¸¦ ÁÙÀÌ´Â 
°æ¿ì¸¦ º¼ ¼ö ÀÖ´Ù. ³»ºÎ¿¡ ÀÌ·¯ÇÑ ³×Æ®¿öÅ©°¡ Á¸ÀçÇÏ´ÂÁö¿¡ ´ëÇÑ ¿©ºÎ¸¦ ¾Æ´Â °ÍÀº 
½±Áö ¾Ê´Ù. ±×°Ô Áß¿äÇÑ °ÍÀº ¾Æ´Ï°í ³×Æ®¿öÅ©¿¡¼­ Á¦°øµÇ´Â DNS¸¦ "forwarder"·Î 
»ç¿ëÇÔÀ¸·Î¼­ ÁúÀÇ¿¡ ´ëÇÑ ÀÀ´äÀ» ´õ »¡¸® ¾òÀ» ¼öµµ ÀÖ°í ³×Æ®¿öÅ©ÀÇ ºÎÇÏ¿ª½Ã ÁÙÀÏ ¼ö 
ÀÖ´Ù. ¸ðµ©À» »ç¿ëÇÑ´Ù¸é ¾ÆÁÖ ÁÁÀ» °ÍÀÌ´Ù. ³×Æ®¿öÅ© °ø±ÞÀÚ°¡ »ç¿ëÇÏ°í ½ÍÀº ³×ÀÓ ¼­¹ö 
2°³¸¦ È®º¸ÇÏ°í ÀÖÀ¸¸ç ±× ip°¡ <Literal remap="tt">10.0.0.1</Literal>°ú 
<Literal remap="tt">10.1.0.1</Literal> ÀÌ¶ó°í °¡Á¤ÇØ º¸ÀÚ. ±×·¯¸é 
<Literal remap="tt">named.conf</Literal>ºÎºÐ¿¡ "option"ÀÌ¶ó°í ºÒ¸®´Â ºÎºÐÀÇ ½ÃÀÛ¿¡ 
´ÙÀ½°ú °°Àº ½ÄÀ¸·Î ÄÚµùÀ» Ãß°¡ÇÏ¸é µÈ´Ù.
</Para>

<Para>

<ProgramListing>
           forward first;
           forwarders {
                10.0.0.1;
                10.1.0.1;
            };
</ProgramListing>

</Para>

<Para>
¸ðµ©»ç¿ëÇÏ´Â DNS¿¡°Ô forwardingÀº ¾ÆÁÖ ÁÁÀº ¹æ¹ýÀÌ´Ù.Q&amp;A¿¡ ±â¼úÇØ ³õ¾Ò´Ù.
</Para>

<Para>
nameserver¸¦ Àç°¡µ¿ÇÏ°í dig·Î È®ÀÎÇØ º¸±â¸¦. ¾Æ¸¶ Àß ÀÛµ¿ÇÒ °ÍÀÌ´Ù.
</Para>

</Sect1>

<Sect1 id="simple">
<Title>°£´ÜÇÑ µµ¸ÞÀÎ</Title>

<Para>
<Emphasis remap="bf">µµ¸ÞÀÎ ±¸Ãà ¹æ¹ý.</Emphasis>
</Para>

<Sect2>
<Title>5.1 ¿ì¼±Àº »óÅõÀûÀÎ ÀÌ·ÐºÎÅÍ</Title>

<Para>
¿ì¼±ÀûÀ¸·Î ÀÌÀü¿¡ ´Ù¸¥ ¿©·¯ °ü·Ã¼­ÀûÀ» ÀÐ°í ¼÷ÁöÇß´Â°¡? ±×·¡¾ß¸¸ÇÑ´Ù.
</Para>

<Para>
ÀÌ ÀåÀ» ½ÃÀÛÇÏ±â Àü¿¡ DNS°¡ ±¸µ¿µÇ´Â ¾à°£ÀÇ ÀÌ·Ð¿¡ ´ëÇØ ¼³¸íÇÏ±â·Î ÇÑ´Ù. 
±×¸®°í ÀÌ ÀåÀ»ÀÐ´Â°ÍÀÌ ÁÁ´Ù. ÀÐ±â ½ÈÀ¸¸é Àû¾îµµ <Literal remap="tt">named.conf</Literal>°¡ 
³ª¿À±â Àü±îÁö ¼Óµ¶ÀÌ¶óµµ ÇÏ¶ó.
</Para>

<Para>
DNS´Â tree±¸Á¶·Î µÇÀÖ´Â °èÃþ±¸Á¶ÀÌ´Ù. ÀÏ¹ÝÀûÀÎ treeµ¥ÀÌÅÍ-±¸Á¶¿¡¼­ »óÀ§´Â 
'<Literal remap="tt">.</Literal>' À¸·Î µÇ¾î ÀÖ°í ÀÌ°ÍÀº 'root'·Î ´Ù½Ã ºÒ¸®¿ö Áø´Ù. 
'<Literal remap="tt">.</Literal>' ¾Æ·¡¿¡´Â ¼ö¸¹Àº ÃÖ»óÀ§ µµ¸ÞÀÎµéÀÌ ÀÖ´Ù(TLDs:Top 
Level Domains);°¡Àå Àß ¾Ë·ÁÁø °ÍÀº <Literal remap="tt">ORG</Literal>, 
<Literal remap="tt">COM</Literal>, <Literal remap="tt">EDU</Literal>, 
<Literal remap="tt">NET</Literal> µîÀÌ ÀÖ´Ù. ³ª¹«Ã³·³ »Ñ¸®(root)µµ ÀÖ°í °¡Áö(branch)µµ ÀÖ´Ù°í 
»ý°¢ÇÏÀÚ. ÄÄÇ»ÅÍ°úÇÐ¿¡ ´ëÇÑ Áö½ÄÀÌ ÀÖ´Ù¸é DNS¸¦ treeºÎºÐ, ¸¶µð, ÀÙ¸¶µð, ºÀ¿ì¸®·Î ÀÎ½ÄÇÏ°Ô 
µÉ °ÍÀÌ´Ù. Á¡(.)ÀÌ ºÐ±âÁ¡ÀÌ°í ºÀ¿ì¸®°¡ ÀÌ¸§µéÀÌ´Ù.
</Para>

<Para>
ÁúÀÇ´Â root·Î ºÎÅÍ ½ÃÀÛµÇ´Â ±¸Á¶¿¡ ´ëÇØ¼­ ¼øÈ¯ÀûÀ¸·Î ÁøÇàµÈ´Ù. 
<Literal remap="tt">prep.ai.mit.edu.</Literal> ÀÌ¶ó´Â ÁÖ¼Ò¸¦ Ã£À¸·Á ÇÑ´Ù¸é ³×ÀÓ¼­¹ö´Â 
¾îµò°¡¿¡ ÁúÀÇ¸¦ ÇÒ°ÍÀÌ´Ù. ¿ì¼±Àº Ä³½¬¿¡¼­ºÎÅÍ ÁúÀÇ¸¦ ÇÑ´Ù. Ä³½¬°¡ ´äÀ» °¡Áö°í ÀÖ°í 
´äº¯ÀÌ ¿À°Ô µÈ´Ù¸é ¹Ù·Î Àü Àå¿¡¼­¿Í °°Àº °á°ú¸¦ º¸°Ô µÉ °ÍÀÌ´Ù.¿©±â¿¡¼­ ´äÀÌ ³ª¿ÀÁö 
¾ÊÀ¸¸é ÀÌ¸§ÀÌ ½ÃÀÛµÇ´Â ¿ÞÂÊºÎÅÍ Áö¿ö ³ª°¡°Ô µÈ´Ù. <Literal remap="tt">ai.mit.edu.</Literal> 
±×¸®°í´Â <Literal remap="tt">mit.edu.</Literal> ¶Ç ±×¸®°í <Literal remap="tt">edu.</Literal>¸¦ 
³×ÀÓ¼­¹ö°¡ ¾Ë°í ÀÖ´ÂÁö È®ÀÎÇÏ°í, ¸ð¸¥´Ù¸é<Literal remap="tt">.</Literal> ¿¡°Ô ÁúÀÇ¸¦ ÇÏ°Ô µÈ´Ù. 
<Literal remap="tt">.</Literal> Àº hintsÆÄÀÏÀ» °¡¸£Å°±â ¶§¹®ÀÌ´Ù. ±×·¯¸é 
<Literal remap="tt">.</Literal> ¼­¹öµéÀº <Literal remap="tt">prep.ai.mit.edu</Literal> ¿¡ ´ëÇØ 
ÁúÀÇ¸¦ ÇÏ°Ô µÇ¸ç, <Literal remap="tt">prep.ai.mit.edu</Literal> ¼­¹ö°¡ ´äÀ» ¸ð¸£´õ¶óµµ ´Ù¸¥ °÷ 
¾îµð¸¦ Ã£¾Æ¾ß ÇÒÁö¸¦ ´ç½ÅÀÇ ¼­¹ö¿¡ ¾Ë·ÁÁÖ°í, Ã£¾Æ°£ °÷¿¡¼­ ÁúÀÇ¿¡ ´ëÇÑ ´äÀ» ¾ò°Ô µÈ´Ù. ÀÌ·¯ÇÑ 
°ÍÀ» ÀÌÁ¦ º¸¿©ÁÙ °ÍÀÌ´Ù. dig¿¡¼­ <Literal remap="tt">+norec</Literal>´Â ºñ¼øÈ¯ÀûÀÎ ÁúÀÇ¸¦ º¸³»¼­ 
¿ì¸®¿¡°Ô µ¹¾Æ¿Â °ª¸¸À» ¾ò°Ô µÈ´Ù.ÀÌ ¿É¼ÇÀº dig °úÁ¤À» ÁÙÀÌ°í ÆäÀÌÁö ¼ö¸¦ ÁÙÀÏ°ÍÀÌ´Ù. 
(ÁúÀÇ º¸³»°í ´Ù½Ã ÁúÀÇ¸¦ Ã£´Â ½ÄÀÇ ¼øÈ¯ÀÌ ¾Æ´Ï¶ó ÁúÀÇ ÇÑ¹ø¿¡ °á°ú ÇÑ¹øÀ» º¸¿©ÁØ´Ù´Â 
ÀÇ¹Ì·Î ÀÌÇØµË´Ï´Ù.^^;)
</Para>

<Para>

<Screen>
$ dig +norec +noH +noques +nostats +nocmd prep.ai.mit.edu.
;; res options: init defnam dnsrch
;; got answer:
; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 13
;; AUTHORITY SECTION:
.                       5d23h48m47s IN NS  I.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  E.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  D.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  A.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  H.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  C.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  G.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  F.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  B.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  J.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  K.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  L.ROOT-SERVERS.NET.
.                       5d23h48m47s IN NS  M.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
I.ROOT-SERVERS.NET.     6d23h48m47s IN A  192.36.148.17
E.ROOT-SERVERS.NET.     6d23h48m47s IN A  192.203.230.10
D.ROOT-SERVERS.NET.     6d23h48m47s IN A  128.8.10.90
A.ROOT-SERVERS.NET.     6d23h48m47s IN A  198.41.0.4
H.ROOT-SERVERS.NET.     6d23h48m47s IN A  128.63.2.53
C.ROOT-SERVERS.NET.     6d23h48m47s IN A  192.33.4.12
G.ROOT-SERVERS.NET.     6d23h48m47s IN A  192.112.36.4
F.ROOT-SERVERS.NET.     6d23h48m47s IN A  192.5.5.241
B.ROOT-SERVERS.NET.     6d23h48m47s IN A  128.9.0.107
J.ROOT-SERVERS.NET.     6d23h48m47s IN A  198.41.0.10
K.ROOT-SERVERS.NET.     6d23h48m47s IN A  193.0.14.129
L.ROOT-SERVERS.NET.     6d23h48m47s IN A  198.32.64.12
M.ROOT-SERVERS.NET.     6d23h48m47s IN A  202.12.27.33
</Screen>

</Para>

<Para>
°¡ÀÌµå¶óÀÎ¸¸(referral) µé¾î¿Ô´Ù. ¿ì¸®¿¡°Ô "AUTHORITY SECTION(ÀÎÁõ ¼½¼Ç)"¸¸À» ÁÖ°í 
"Answer Section(ÀÀ´ä¼½¼Ç)"Àº ÁÖÁö ¾Ê¾Ò´Ù. ¿ì¸® ³×ÀÓ¼­¹ö°¡ ÇÏ³ªÀÇ ³×ÀÓ¼­¹ö¸¦ ¼±ÅÃÇÒ 
°ÍÀÌ´Ù. ¾Æ¹«°Å³ª Áý¾îº¸ÀÚ.(ÃßÃµµÈ ¼­¹öÁß ÇÏ³ª¸¦ Áý¾î³»¼­ ´Ù½Ã ÁúÀÇ¸¦ º¸³»ÀÚ´Â ÀÌ¾ß±â°ÚÁ®...)
</Para>

<Para>

<Screen>
$ dig +norec +noH +noques +nostats +nocmd prep.ai.mit.edu. @H.ROOT-SERVERS.NET.
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3
;; AUTHORITY SECTION:
MIT.EDU.                2D IN NS        BITSY.MIT.EDU.
MIT.EDU.                2D IN NS        STRAWB.MIT.EDU.
MIT.EDU.                2D IN NS        W20NS.MIT.EDU.

;; ADDITIONAL SECTION:
BITSY.MIT.EDU.          2D IN A         18.72.0.3
STRAWB.MIT.EDU.         2D IN A         18.71.0.151
W20NS.MIT.EDU.          2D IN A         18.70.0.160
</Screen>

</Para>

<Para>
ÀÌÁ¦ ¿ì¸®¿¡°Ô MIT.EDU¸¦ ¼±ÅÃÇÒ ¼ö ÀÖ´Ù. ´Ù½Ã ÇÏ³ª Áý¾î³» º¸ÀÚ.
</Para>

<Para>

<Screen>
$ dig +norec +noH +noques +nostats +nocmd prep.ai.mit.edu. @bitsy.mit.edu
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
; flags: qr ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4
;; ANSWER SECTION:
prep.ai.mit.edu.        3h50m7s IN A    198.186.203.18

;; AUTHORITY SECTION:
AI.MIT.EDU.             6H IN NS        FEDEX.AI.MIT.EDU.
AI.MIT.EDU.             6H IN NS        LIFE.AI.MIT.EDU.
AI.MIT.EDU.             6H IN NS        ALPHA-BITS.AI.MIT.EDU.
AI.MIT.EDU.             6H IN NS        BEET-CHEX.AI.MIT.EDU.

;; ADDITIONAL SECTION:
FEDEX.AI.MIT.EDU.       6H IN A         192.148.252.43
LIFE.AI.MIT.EDU.        6H IN A         128.52.32.80
ALPHA-BITS.AI.MIT.EDU.  6H IN A         128.52.32.5
BEET-CHEX.AI.MIT.EDU.   6H IN A         128.52.32.22
</Screen>

</Para>

<Para>
ÀÌÁ¦ "Answer Section"À» ¾ò¾ú°í, ¿ì¸®´Â ÁúÀÇ¿¡ ´ëÇÑ ´äÀ» ¾ò°Ô µÇ¾ú´Ù. 
"AUTHORITY SECTION"Àº ¾î´À ¼­¹ö¿¡ <Literal remap="tt">ai.mit.edu</Literal>¸¦ ´ÙÀ½¿¡ 
¹°¾î¾ß ÇÏ´Â Áö¿¡ ´ëÇÑ Á¤º¸¸¦ °¡Áö°í ÀÖ´Ù. ±×·¡¼­ ¹Ù·Î ´ÙÀ½¿¡ 
<Literal remap="tt">ai.mit.edu</Literal>¸¦ ¹°¾îº¼ ¼ö ÀÖ°Ô µÈ´Ù.
</Para>

<Para>
<Literal remap="tt">.</Literal> ¿¡¼­ºÎÅÍ Ãâ¹ßÇØ¼­ ¿ì¸®´Â °¢ µµ¸ÞÀÎ ³×ÀÓÀÇ ·¹º§¿¡¼­ 
³×ÀÓ¼­¹ö¸¦ ¼º°øÀûÀ¸·Î ¹ß°ßÇØ ³»¾ú´Ù. ´Ù¸¥ ¼­¹ö¸¦ »ç¿ëÇÏÁö ¾Ê°í ¿©·¯ºÐÀÇ DNS¼­¹ö¸¦ 
»ç¿ëÇß´Ù¸é ´ç¿¬È÷ ±× Á¤º¸¸¦ Ä³½¬¿¡ ÀúÀåÇØ µÑ °ÍÀÌ°í ´çºÐ°£Àº ´Ù½Ã ¹¯Áö ¾ÊÀ» °ÍÀÌ´Ù.
</Para>

<Para>
ÀÌ Æ®¸®±¸Á¶¿¡¼­ ÀÌ¸§¾È¿¡ ÀÖ´Â "<Literal remap="tt">.</Literal>" µéÀº ºÐ±âÁ¡ÀÌ´Ù. 
±×¸®°í "<Literal remap="tt">.</Literal>"Á¡µé »çÀÌÀÇ ºÎºÐÀº ÀÌ Æ®¸®±¸Á¶¿¡¼­ °³º°ÀûÀ¸·Î 
ºÐ±âµÇ´Â ºÎºÐÀÌ´Ù. ¿ì¸®°¡ ¿øÇÏ´Â ÀÌ¸§À» (<Literal remap="tt">prep.ai.mit.edu</Literal>) Ã£±â 
À§ÇØ¼­ Æ®¸®±¸Á¶¸¦ º¸¸é ¿ì¼± Ä³½¬¿¡ ÀÖ´Â Á¤º¸³ª ¾Æ´Ï¸é »Ñ¸®(<Literal remap="tt">.</Literal>)¿¡°Ô 
¾î´À ¼­¹ö°¡ <Literal remap="tt">prep.ai.mit.edu</Literal>·Î °¡´Â ½ÃÀÛÁ¡(¿øº»Àº father¶ó´Â 
µ¿»ç¸¦ ¾¹´Ï´Ù.¿ø·ù... ±Ù¿ø...)ÀÎÁö¸¦ ¹°¾îº»´Ù. Ä³½¬¿¡ Á¤º¸°¡ ¾øÀ¸¸é ¹ÛÀ¸·Î ³ª°¡¼­ ±× ÀÌ¸§¿¡ 
´ëÇÑ Á»´õ °¡±î¿î ÈùÆ®(referral,ÁöÁ¤µÈ ¼­¹ö¶ó°í ¹ø¿ªµÇ´Âµ¥ ÈùÆ®°¡ ´õ Àû´çÇÒ ¼ö ÀÖ°Ú½À´Ï´Ù.)¸¦ 
¾ò±â À§ÇØ Àç±ÍÀûÀ¸·Î °è¼ÓÇØ¼­ ¼­¹öµé¿¡°Ô Áú¹®À» ÇÏ°Ô µÈ´Ù.
</Para>

<Para>
ÀÚÁÖ ÀÌ¾ß±â µÇÁö´Â ¾ÊÁö¸¸ Áß¿äÇÑ µµ¸ÞÀÎÀÌ <Literal remap="tt">in-addr.arpa</Literal> ÀÌ´Ù. 
'ÀÏ¹Ý'µµ¸ÞÀÎ°ú À¯»çÇÏ´Ù. <Literal remap="tt">in-addr.arpa</Literal>´Â ¿ì¸®°¡ ÁÖ¼Ò¸¦ ¾Ë°í 
ÀÖÀ» °æ¿ì¿¡ ±× ÀÌ¸§À» ¾Ë·ÁÁØ´Ù. ¼÷ÁöÇØ¾ß ÇÒ Áß¿äÇÑ ºÎºÐÀº ip ÁÖ¼Ò°¡ 
<Literal remap="tt">in-addr.arpa</Literal> µµ¸ÞÀÎ¿¡¼­´Â °Å²Ù·Î »ç¿ëµÈ´Ù´Â °ÍÀÌ´Ù. ¸¸¾à¿¡ ÁÖ¼Ò 
<Literal remap="tt">192.148.52.43</Literal>À» ¾Ë°í ÀÖ´Ù°í ÇÏÀÚ. ±×·¯¸é 
<Literal remap="tt">prep.ai.mit.edu</Literal> ¿¹¿¡¼­ Çß´ø °Í°ú °°Àº ½ÄÀ¸·Î ÁøÇàÀÌ µÈ´Ù. ¸ÕÀú 
<Literal remap="tt">arpa.</Literal> ¼­¹ö¸¦ Ã£°í <Literal remap="tt">in-addr.arpa.</Literal> 
¼­¹ö¸¦ Ã£°ÔµÈ´Ù. ±×¸®°í ³ª¼­ <Literal remap="tt">192.in-addr.arpa.</Literal> ·Î, 
<Literal remap="tt">148.192.in-addr.arpa.</Literal> ·Î, 
<Literal remap="tt">52.148.192.in-addr.arpa.</Literal> ¼­¹ö·Î ÇØ¼­ 
<Literal remap="tt">43.52.148.192.in-addr.arpa.</Literal>¼­¹ö¸¦ Ã£°ÔµÈ´Ù. ¿µ¸®ÇÏÁö ¾ÊÀº°¡?
(±×·¸´Ù°í ´ë´äÇÏ¶ó°í ¿ø¹®Àº °­¿äµµ ÇÑ´Ù.-.-) ¼ýÀÚ¸¦ µÚÁý¾î ³õÀº °ÍÀÌ ´Ù¼Ò°£Àº È¥¶õ½º·¯¿ï °ÍÀÌ´Ù.)
</Para>

</Sect2>

<Sect2>
<Title>ÀÚ½ÅÀÇ µµ¸ÞÀÎ</Title>

<Para>
ÀÌÁ¦ ¿ì¸® µµ¸ÞÀÎÀ» Á¤ÀÇÇØ º¸ÀÚ. ¿ì¸®´Â <Literal remap="tt">linux.bogus</Literal>¶ó´Â 
µµ¸ÞÀÎÀ» °¡Áö°í ¿ì¸® ¼­¹ö¿¡ ¸¸µé¾î ³õÀ» °ÍÀÌ´Ù. ³ª´Â ÀÌ·¯ÇÑ °ÍÀÌ ¿ÜºÎ·Î ½ÇÁ¦ ³ª°¡Áö 
¾Ê°Ô °¡Â¥ µµ¸ÞÀÎ ÀÌ¸§À» ¾µ °ÍÀÌ´Ù.
</Para>

<Para>
½ÃÀÛÀü¿¡ ÇÏ³ª ¾Ë¾ÆµÖ¾ß ÇÑ´Ù. ¸ðµç ¹®ÀÚ°¡ ´Ù µµ¸ÞÀÎÀÌ µÇ´Â °ÍÀº ¾Æ´Ï´Ù. Á¦ÇÑÀûÀ¸·Î ¿µ¾î 
¾ËÆÄºªÀÌ ¾²ÀÎ´Ù.: a-z, 0-9, ±×¸®°í '-'(´ë½¬)°¡ »ç¿ëµÈ´Ù. ´ë¼Ò¹®ÀÚ´Â ±¸º°ÀÌ ¾ø´Ù´Â Á¡µµ 
¾Ë¾Æ µÎ±â¸¦. ±×·¡¼­ <Literal remap="tt">pat.uio.no</Literal> ´Â 
<Literal remap="tt">Pat.UiO.No</Literal> ¿Í °°ÀÌ ¾²ÀÎ´Ù.
</Para>

<Para>
¿ì¸®´Â ÀÌ¹Ì <Literal remap="tt">named.conf</Literal>¿¡¼­ ÀÌ ºÎºÐÀ» Çß¾ú´Ù.:
</Para>

<Para>

<ProgramListing>
zone "0.0.127.in-addr.arpa" {
	type master;
	file "pz/127.0.0";
};
</ProgramListing>

</Para>

<Para>
ÀÌ ÆÄÀÏ¿¡¼­´Â µµ¸ÞÀÎ ³×ÀÓÀÇ ¸¶Áö¸·¿¡ '<Literal remap="tt">.</Literal>'ÀÌ ¾ø´Ù´Â 
»ç½ÇÀ» ÁÖÀÇÇØ¶ó. ÀÌ ºÎºÐÀº ¿ì¸®°¡ <Literal remap="tt">0.0.127.in-addr.arpa</Literal> 
Á¸¿¡ ´ëÇÑ Á¤ÀÇÀÌ°í ¸¶½ºÅÍ ¼­¹ö¿¡ ´ëÇÑ Á¤ÀÇ°¡ ÀÖÀ¸¸ç 
<Literal remap="tt">pz/127.0.0</Literal>ÀÌ¶ó´Â ÆÄÀÏ ¾È¿¡ ÀúÀåÀÌ µÈ´Ù. 
¿ì¸®´Â ÀÌ¹Ì ÀÌ ÆÄÀÏÀ» ¼¼ÆÃÇß´Ù. º¸¸é...
</Para>

<Para>

<ProgramListing>
$TTL 3D
@               IN      SOA     ns.linux.bogus. hostmaster.linux.bogus. (
				1       ; Serial
				8H	; Refresh
				2H      ; Retry
				4W	; Expire
				1D)	; Minimum TTL
			NS      ns.linux.bogus.
1			PTR	localhost.
</ProgramListing>

</Para>

<Para>
À§ÀÇ <Literal remap="tt">named.conf</Literal>¿Í´Â ´Ù¸£°Ô ÀÌ ÆÄÀÏ¾È¿¡ ÀÖ´Â ¸ðµç 
µµ¸ÞÀÎ¸íÀÇ ¸¶Áö¸·¿¡´Â '<Literal remap="tt">.</Literal>'ÀÌ ÀÖ´Ù´Â »ç½ÇÀ» ¾Ë¾ÆµÎ±æ 
¹Ù¶õ´Ù. ¾î¶² ÀÌµéÀº ¸ðµç Á¸ ÆÄÀÏÀ» <Literal remap="tt">&dollar;ORIGIN</Literal>À¸·Î 
½ÃÀÛÇÏ±âµµ ÇÏ´Âµ¥ ÀÌ°ÍÀº ºÒÇÊ¿äÇÑ °ÍÀÌ´Ù. µµ¸ÞÀÎ °èÃþ¾È¿¡ Æ÷ÇÔµÇ¾î ÀÖ´Â ÀÌ Á¸ ÆÄÀÏµéÀÇ 
±Ù¿øÁö´Â ÀÌ¹Ì <Literal remap="tt">named.conf</Literal>¿¡¼­ ´Ù ¸í½Ã°¡ µÇ¾î ÀÖ±â ¶§¹®ÀÌ´Ù. 
ÀÌ °æ¿ì¿¡´Â <Literal remap="tt">0.0.127.in-addr.arpa</Literal> ÀÌ´Ù.
</Para>

<Para>
ÀÌ 'zone' ÆÄÀÏÀº 3°³ÀÇ 'ÀÚ¿ø·¹ÄÚµå(RR:Resource Records)'¸¦ °¡Áö°í ÀÖ´Ù. SOA, NS, PTRÀÌ´Ù. 
SOA´Â Start Of AuthorityÀÇ ¾à¾îÀÌ´Ù. @´Â ¿øº»À» ÀÇ¹ÌÇÏ´Â °ÍÀ¸·Î ÀÌ°ÍÀº 'domain'ÄÃ·³¿¡¼­ 
0.0.127.in-addr.arpa¸¦ÀÇ¹ÌÇÏ´Â °ÍÀÌ´Ù.
</Para>

<Para>

<Screen>
0.0.127.in-addr.arpa.	IN	SOA ...
</Screen>

</Para>

<Para>
NS´Â NameServerÀÇ ¾àÀÚÀÌ´Ù. ½ÃÀÛºÎºÐ¿¡ '@'°¡ ¾ø´Ù. ÀÌ¹Ì ¾Õ ¶óÀÎÀÌ @·Î ½ÃÀÛµÇ¸é¼­ @°¡ 
³»Á¦µÇ¾îÀÖ´Ù. Å¸ÀÌÇÎ ¼ö¸¦ ÁÙ¿©¶ó. ±×·¡¼­ NS¶óÀÎÀº ÀÌ·¸°Ô ¾²¿©Áø´Ù.
</Para>

<Para>

<Screen>
0.0.127.in-addr.arpa.	IN	NS	ns.linux.bogus
</Screen>

</Para>

<Para>
ÀÌ°ÍÀº DNS¿¡°Ô ¾î¶² ÄÄÇ»ÅÍ°¡ µµ¸ÞÀÎ <Literal remap="tt">0.0.127.in-addr.arpa</Literal>ÀÇ 
nameserverÀÎÁö ¾Ë·ÁÁÖ°Ô µÈ´Ù. ¿©±â¼­´Â <Literal remap="tt">ns.linux.bogus</Literal>ÀÌ´Ù. 
'ns'´Â º¸ÆíÀûÀ¸·Î nameserver¿¡ ºÙ´Â ¸»ÀÌ´Ù. ±×·¯³ª À¥¼­¹öÀÇ ÀÌ¸§ÀÌ ÀÏ¹ÝÀûÀ¸·Î 
<Literal remap="tt">www.</Literal><Emphasis>something</Emphasis> ÀÌµíÀÌ ´Ù¸¥ ÀÌ¸§À» ÁÖ¾îµµ ¹«¹æÇÏ´Ù.
</Para>

<Para>
±×¸®°í ¸¶Áö¸·À¸·Î PTR(Domain Name Pointer)·¹ÄÚµå´Â ¼­ºê³Ý 
<Literal remap="tt">0.0.127.in-addr.arpa</Literal>ÀÇ È£½ºÆ® ¾îµå·¹½º°¡ 1 ÀÓÀ» ÀÌ¾ß±â ÇÑ´Ù. 
Áï 127.0.0.1ÀÇ ÀÌ¸§ÀÌ <Literal remap="tt">localhost</Literal>ÀÌ´Ù.
</Para>

<Para>
SOA ·¹ÄÚµå´Â ¸ðµç zone ÆÄÀÏÀÇ ¼­µÎ¿¡ ÇØ´çµÇ¸ç °¢ Á¸ ÆÄÀÏ¸¶´Ù ¹Ýµå½Ã ÇÏ³ª¾¿ ÀÖ¾î¾ß ÇÑ´Ù. 
ÀÌ°ÍÀº ±× zone ÆÄÀÏÀÌ ¹«¾ùÀÌ¶ó ºÒ¸®´ÂÁö(¿©±â¼­´Â <Literal remap="tt">ns.linux.bogus</Literal>¶ó 
ºÒ¸°´Ù.), ´©°¡ ÀÌ contents¸¦ °ü¸®ÇÏ´ÂÁö(<Literal remap="tt">hostmaster@linux.bogus</Literal>; 
emailÁÖ¼Ò¸¦ ÇÊÈ÷ ³Ö¾î¾ß ÇÑ´Ù), ÀÌ Á¸ ÆÄÀÏÀÇ ¹öÁ¯ÀÌ ¹«¾ùÀÎÁö(serial:1), Ä³½Ã¼­¹ö¿Í 2Â÷ DNS¼­¹ö´Â 
¹«¾ùÀÎÁö µîÀ» ±âÀçÇÏ°Ô µÈ´Ù. ³ª¸ÓÁö ÇÊµå(refresh, retry,expire,minimum)Àº HOWTO ¿¡ ±â¼úµÈ °ÍÀ¸·Î 
ÇØ¶ó. ÀÌ°ÍÀÌ ¾ÈÁ¤ÀûÀÏ °ÍÀÌ´Ù. SOA ¶óÀÎÀÌ ¾²¿©Áö±â Àü¿¡ <Literal remap="tt">$TTL 3D</Literal>¶õ 
°ÍÀ» À§¿¡ ±âÀçÇÏ±æ ¹Ù¶õ´Ù. ÀÌ°ÍÀº ¸ðµç zone file¿¡ ³Ö¾î¾ß ÇÑ´Ù.
</Para>

<Para>
ÀÌÁ¦ named ¸¦ Àç±¸µ¿½ÃÄÑº¸ÀÚ.(<Literal remap="tt">ndc restart</Literal>) 
±×¸®°í dig¸í·É¾î·Î ÁúÀÇ¸¦ ÇØ º¸ÀÚ(¿É¼Ç -x)
</Para>

<Para>

<Screen>
$ dig -x 127.0.0.1

; &#60;&#60;&#62;&#62; DiG 8.2 &#60;&#60;&#62;&#62; -x 
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;      1.0.0.127.in-addr.arpa, type = ANY, class = IN

;; ANSWER SECTION:
1.0.0.127.in-addr.arpa.  1D IN PTR  localhost.

;; AUTHORITY SECTION:
0.0.127.in-addr.arpa.   1D IN NS        ns.penguin.bv.

;; Total query time: 5 msec
;; FROM: lookfar to SERVER: default -- 127.0.0.1
;; WHEN: Sat Dec 16 01:13:48 2000
;; MSG SIZE  sent: 40  rcvd: 110
</Screen>

</Para>

<Para>
À§¿¡¼­ 127.0.0.1¿¡¼­ <Literal remap="tt">localhost</Literal>¸¦ Ã£´Âµ¥ ¼º°øÇß´Ù. 
ÀÌÁ¦ ÁÖ¿ä ÀÛ¾÷ÀÎ <Literal remap="tt">linux.bogus</Literal> µµ¸ÞÀÎÀ» ¸¸µé¾î º¸ÀÚ. 
<Literal remap="tt">named.conf</Literal>ÀÇ 'zone'¼½¼Ç¿¡ Ãß°¡ÇÏ¶ó
</Para>

<Para>

<ProgramListing>
zone "linux.bogus" {
	notify no;
	type master;
	file "pz/linux.bogus";
};
</ProgramListing>

</Para>

<Para>
<Literal remap="tt">named.conf</Literal> ÆÄÀÏÀÇ µµ¸ÞÀÎ ÀÌ¸§¿¡´Â '<Literal remap="tt">.</Literal>'ÀÌ 
¾ø´Ù´Â °ÍÀ» ´Ù½ÃÇÑ¹ø »ó±âÇÏÀÚ.
</Para>

<Para>
linux.bogusÀÇ Á¸ÆÄÀÏ¿¡´Â ÀüºÎ °¡Â¥ µ¥ÀÌÅÍ¸¦ ³ÖÀ» °ÍÀÌ´Ù.
</Para>

<Para>

<ProgramListing>
;
; Zone file for linux.bogus
;
; The full zone file
;
$TTL 3D
@	IN	SOA	ns.linux.bogus. hostmaster.linux.bogus. (
			199802151	; serial, todays date + todays serial #
			8H		; refresh, seconds
			2H		; retry, seconds
			4W		; expire, seconds
			1D )		; minimum, seconds
;
		NS	ns		; Inet Address of name server
		MX	10 mail.linux.bogus	; Primary Mail Exchanger
		MX	20 mail.friend.bogus.	; Secondary Mail Exchanger
;
localhost	A	127.0.0.1
ns		A	192.168.196.2
mail		A	192.168.196.4
</ProgramListing>

</Para>

<Para>
SOA ·¹ÄÚµå ºÎºÐ¿¡¼­ 2°¡Áö ºÎºÐÀ» ÁÖÀÇÇØ¼­ º¸ÀÚ. <Literal remap="tt">ns.linux.bogus</Literal>´Â 
A ·¹ÄÚµå¸¦ °¡Áø ½ÇÁ¦ ÄÄÇ»ÅÍ¿©¾ß ÇÑ´Ù. SOA·¹ÄÚµå°¡ ÀÌ¾ß±âÇÏ´Â ÄÄÇ»ÅÍÀÇ ÀÌ¸§À» CNAMEÀ¸·Î ÇÏ´Â °ÍÀº 
±ÔÁ¤¿¡ ¾î±ß³­´Ù. ÀÌ ÀÌ¸§¿¡ 'ns'°¡ µé¾î°¥ ÇÊ¿ä´Â ¾øÀ¸¸ç ¾Æ¹« ÀÌ¸§ÀÌ¶óµµ ±ÔÁ¤¿¡¸¸ ¾î±ß³ªÁö ¾ÊÀ¸¸é µÈ´Ù. 
´ÙÀ½À¸·Î hostmaster.linux.bogus ´Â hostmaster@linux.bogus·Î ºÁ¾ß ÇÑ´Ù. ÀÌ°ÍÀº mail alias³ª 
mailbox·Î¼­, DNS°ü¸®ÀÚ°¡ ÀÌ ÁÖ¼Ò·Î ¸ÞÀÏÀ» ¹Þ°Ô µÉ °ÍÀÌ´Ù. ÀÌ¸§ÀÌ ²À hostmasterÀÏ ÇÊ¿ä´Â ¾ø´Ù. 
ÀÏ¹Ý ¸ÞÀÏÁÖ¼Ò¸¦ ³Ö¾îµµ µÇÁö¸¸ 'hostmaster' ÀÎ °ÍÀÌ È¿À²ÀûÀÏ °ÍÀÌ´Ù.
</Para>

<Para>
MX¶ó´Â »õ·Î¿î ·¹ÄÚµå°¡ º¸ÀÎ´Ù. ÀÌ°ÍÀº Mail eXchanger·Î ¸ÞÀÏ ½Ã½ºÅÛ¿¡°Ô ¾îµð·Î ¸ÞÀÏÀ» º¸³»´ÂÁö 
¾Ë·ÁÁØ´Ù. <Literal remap="tt">mail.linux.bogus</Literal> È¤Àº 
<Literal remap="tt">mail.friend.bogus</Literal>·Î ÀÎÇØ ÁÖ¼Ò´Â 
<Literal remap="tt">someone@linux.bogus</Literal>°¡ µÈ´Ù. °¢ computerÀÌ¸§¾ÕÀÇ ¼ýÀÚ´Â MX·¹ÄÚµåÀÇ 
¿ì¼± ¼øÀ§¸¦ ³ªÅ¸³½´Ù. °¡Àå ³·Àº ¼ýÀÚÀÇ ·¹ÄÚµå(10)¿¡ °¡´ÉÇÑ ¿ì¼± ¼øÀ§°¡ ÁÖ¾îÁø´Ù. ÀÌ°ÍÀÌ ½ÇÆÐÇÒ 
°æ¿ì ´õ Å« ¼ýÀÚ¸¦ Ã£¾Æ¼­ °¡´Â¿¡ ¿©±â¿¡¼­´Â 20¹øÀÇ <Literal remap="tt">mail.friend.bogus</Literal>°¡ µÈ´Ù.
</Para>

<Para>
´Ù½Ã <Literal remap="tt">ndc restart</Literal>ÇÑ ÈÄ dig °á°ú¸¦ »ìÆìº¸ÀÚ.
</Para>

<Para>

<Screen>
$ dig any linux.bogus +pfmin
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 23499
;; QUERY: 1, ANSWER: 4, AUTHORITY: 1, ADDITIONAL: 1
;; QUERY SECTION:
;;      linux.bogus, type = ANY, class = IN

;; ANSWER SECTION:
linux.bogus.            3D IN MX        10 mail.linux.bogus.linux.bogus.
linux.bogus.            3D IN MX        20 mail.friend.bogus.
linux.bogus.            3D IN NS        ns.linux.bogus.
linux.bogus.            3D IN SOA       ns.linux.bogus. hostmaster.linux.bogus. (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        4W              ; expiry
                                        1D )            ; minimum
</Screen>

</Para>

<Para>
Àß º¸¸é ¹ö±×°¡ ÀÖ´Ù. ¶óÀÎÀÇ
</Para>

<Para>

<Screen>
linux.bogus.            3D IN MX        10 mail.linux.bogus.linux.bogus.
</Screen>

</Para>

<Para>
°¡ Àß¸øµÇ¾ú´Ù.ÀÌ°ÍÀº
</Para>

<Para>

<Screen>
linux.bogus.            3D IN MX        10 mail.linux.bogus.
</Screen>

</Para>

<Para>
·Î ³ª¿Í¾ß ÇÑ´Ù. ÀÏºÎ·¯ ¹ö±×¸¦ ¸¸µé¾î¼­ º¸¿©Áá´Ù. Á¸ ÆÄÀÏ ºÎºÐ¿¡¼­ ¿ì¸®°¡ Ã£¾Æ³½ ºÎºÐÀ» »ìÆìº¸ÀÚ
</Para>

<Para>

<Screen>
		MX	10 mail.linux.bogus	; Primary Mail Exchanger
</Screen>

</Para>

<Para>
¸¶Ä§Ç¥°¡ ¾ø°Å³ª 'linux.bogus'°¡ Áßº¹ÀÌ µÇ¾î ÀÖ´Ù. ³¡ºÎºÐ¿¡ ¸¶Ä§Ç¥¸¦ ÂïÁö ¾ÊÀ¸¸é Á¸ÆÄÀÏÀÇ 
originÀÌ ´õÇØÁ®¼­ <Literal remap="tt">linux.bogus.linux.bogus</Literal>ÇüÅÂ°¡ µÈ´Ù. ±×·¡¼­
</Para>

<Para>

<ProgramListing>
		MX	10 mail.linux.bogus.	; Primary Mail Exchanger
</ProgramListing>

</Para>

<Para>
ÀÌ°Å³ª
</Para>

<Para>

<ProgramListing>
		MX	10 mail			; Primary Mail Exchanger
</ProgramListing>

</Para>

<Para>
ÀÇ ÇüÅÂ·Î µÇ¾î¾ß ÇÑ´Ù. ³ª´Â ÈÄÀÚ¸¦ ¼±È£ÇÑ´Ù. Å¸ÀÌÇÎ¼ö¸¦ ÁÙÀÌ°Ô µÇ´Ï±î. BIND Àü¹®°¡µéÀº 
ÀÌ·¯ÇÑ ºÎºÐÀ» µ¿ÀÇÇÏ±âµµ ÇÏ°í ¹Ý´ëÇÏ±âµµ ÇÑ´Ù. Á¸ ÆÄÀÏ¿¡¼­ µµ¸ÞÀÎÀº ³¡ÀÌ 
`<Literal remap="tt">.</Literal>'·Î ³¡³ª´ø°¡ ¾Æ´Ï¸é ÀüºÎ Æ÷ÇÔµÇÁö ¸»¾Æ¾ß ÇÏ¸ç ÀüºÎ Æ÷ÇÔµÇÁö 
¾ÊÀ» °æ¿ì´Â µðÆúÆ®·Î originÀÌ µé¾î°£´Ù.
</Para>

<Para>
ºÐ¸íÈ÷ named.conf ÆÄÀÏ¿¡´Â `<Literal remap="tt">.</Literal>' ÀÌ µé¾î°¡Áö ¾Ê´Â´Ù°í Çß´Ù. 
`<Literal remap="tt">.</Literal>'ÀÌ µµ¸ÞÀÎ ÀÌ¸§ ´ÙÀ½¿¡ ¾ó¸¶³ª ¸¹°Ô È¤Àº Àû°Ô ¾²ÀÌ°Å³ª ÇÏ´Â 
Â÷ÀÌ·Î ¼¼ÆÃÀÌ ¾ÈµÇ°í »ç¶÷µéÀ» È¥¶õ½º·´°Ô ÇÏ´Â ÀÏÀÌ ´Ù¹Ý»çÀÌ´Ù.
</Para>

<Para>
±×·¡¼­ »õ·Î¿î Á¸ ÆÄÀÏÀÇ »ý¼º½Ã¿¡´Â ±×¿¡ ¸Â°Ô Ãß°¡ Á¤º¸°¡ ÁÖ¾îÁ®¾ß ÇÑ´Ù.
</Para>

<Para>

<ProgramListing>
;
; Zone file for linux.bogus
;
; The full zone file
;
$TTL 3D
@	IN	SOA	ns.linux.bogus. hostmaster.linux.bogus. (
			199802151	; serial, todays date + todays serial #
			8H		; refresh, seconds
			2H		; retry, seconds
			4W		; expire, seconds
			1D )		; minimum, seconds
;
		TXT	"Linux.Bogus, your DNS consultants"
		NS	ns		; Inet Address of name server
		NS	ns.friend.bogus.
		MX	10 mail		; Primary Mail Exchanger
		MX	20 mail.friend.bogus. ; Secondary Mail Exchanger

localhost	A	127.0.0.1

gw		A	192.168.196.1
		HINFO	"Cisco" "IOS"
		TXT	"The router"

ns		A	192.168.196.2
		MX	10 mail
		MX	20 mail.friend.bogus.
		HINFO	"Pentium" "Linux 2.0"
www		CNAME	ns

donald		A	192.168.196.3
		MX	10 mail
		MX	20 mail.friend.bogus.
		HINFO	"i486"	"Linux 2.0"
		TXT	"DEK"

mail		A	192.168.196.4
		MX	10 mail
		MX	20 mail.friend.bogus.
		HINFO	"386sx" "Linux 1.2"

ftp		A	192.168.196.5
		MX	10 mail
		MX	20 mail.friend.bogus.
		HINFO	"P6" "Linux 2.1.86"
</ProgramListing>

</Para>

<Para>
»õ·Î¿î ·¹ÄÚµå°¡ º¸ÀÎ´Ù. HINFO(Host INFOmation)´Â 2°³ÀÇ ÆÄÆ®·Î ±¸¼ºµÇ¾î ÀÖ´Ù. 
Ã¹Â° ºÎºÐÀº ÇÏµå¿þ¾î³ª cpuºÎºÐ, µÑÂ° ºÎºÐÀº ¼ÒÇÁÆ®¿þ¾î³ª OS¸¦ Ç¥½ÃÇÑ´Ù. 'ns'¶ó 
ºÒ¸®´Â ÄÄÇ»ÅÍ´Â ÆæÆ¼¾ö cpu¸¦ °¡Áö°í ÀÖ°í Linux 2.0À¸·Î ±¸ÇöµÈ´Ù. CNAME(Canonical Name)Àº 
°¢ computer¿¡°Ô ¿©·¯ ÀÌ¸§À» ÁÖ´Â ¹æ¹ýÀÌ´Ù. ±×·¡¼­ www´Â nsÀÇ alias°¡ µÈ´Ù.
</Para>

<Para>
CNAME ·¹ÄÚµå´Â ¾à°£ÀÇ ¹®Á¦Á¡ÀÌ ÀÖ´Ù. ±×·¯³ª ±ÔÁ¤´ë·Î¸¸ ÇÏ¸é ¹®Á¦µÉ ºÎºÐÀº ¾ø´Ù. 
MX,CNAME,SOA ·¹ÄÚµå°¡ CNAME ·¹ÄÚµå¿¡ ¿¬°èµÇ¾î¼­´Â ¾ÈµÈ´Ù. ÀÌ°ÍµéÀº A ·¹ÄÚµå¿¡¸¸ 
¿¬°èµÇ¾î¾ß ÇÏ±â ¶§¹®ÀÌ´Ù. ±×·¡¼­ ¾Æ·¡¿Í °°Àº °æ¿ì´Â ¾ÈµÈ´Ù.(www°¡ ÀÌ¹Ì CNAMEÀÌ´Ù.)
</Para>

<Para>

<ProgramListing>
foobar		CNAME	www			; NO!
</ProgramListing>

</Para>

<Para>
±×·¯³ª ÀÌ·± °æ¿ì´Â µÈ´Ù.
</Para>

<Para>

<ProgramListing>
foobar		CNAME	ns			; Yes!
</ProgramListing>

</Para>

<Para>
CNAMEÀÌ email ÁÖ¼Ò¸¦ À§ÇÑ hostnameÀ¸·Î ¾²±â¿¡´Â ÀûÇÕÇÏÁö ¾Ê´Ù°í ¿©±â´Â °ÍÀÌ Çö¸íÇÒ 
°ÍÀÌ´Ù. <Literal remap="tt">webmaster@www.linux.bogus</Literal>´Â À§ÀÇ setup°ú ´Ù¸¥ 
Àß¸øµÈ °æ¿ìÀÌ´Ù. ¸¹Àº mail °ü¸®ÀÚµéÀÌ ÀÌ°ÍÀÌ ¼³·É µÇ´õ¶óµµ ÀÌ ¹æ½ÄÀ» °ÅÀÇ »ç¿ëÇÏÁö 
¾ÊÀ» °ÍÀÌ´Ù. ÀÌ·¯ÇÑ ¿À·ù¸¦ ÇÇÇÏ´Â ¹æ½ÄÀº A ·¹ÄÚµå¸¦ »ç¿ëÇÏ´Â °ÍÀÌ´Ù.(´Ù¸¥ MX ·¹ÄÚµå Ã³·³)
</Para>

<Para>

<ProgramListing>
www		A	192.168.196.2
</ProgramListing>

</Para>

<Para>
¸¹Àº DNSÀü¹®°¡µéÀÌ CNAMEÀ» »ç¿ëÇÏÁö ¾ÊÀ» °ÍÀ» ±Ç°íÇÑ´Ù. ±×·¯³ª »ç¿ë°¡´É ¿©ºÎ´Â 
ÀÌ HOWTO¿¡¼­ ³íÇÒ ºÎºÐÀº ¾Æ´Ï´Ù. 
</Para>

<Para>
ÇÏÁö¸¸ ¸¹Àº HOWTO¿Í ¸¹Àº ½ÎÀÌÆ®µéÀÌ ÀÌ ±ÔÄ¢À» µû¸£Áö´Â ¾Ê´Â´Ù.
</Para>

<Para>
»õ database¸¦ ·ÎµùÇÏ°í <Literal remap="tt">ndc reload</Literal>¸¦ ½ÇÇàÇØº¸ÀÚ.
</Para>

<Para>

<Screen>
$ dig linux.bogus axfr

; &#60;&#60;&#62;&#62; DiG 8.2 &#60;&#60;&#62;&#62; linux.bogus axfr 
$ORIGIN linux.bogus.
@                       3D IN SOA       ns hostmaster (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        4W              ; expiry
                                        1D )            ; minimum

                        3D IN NS        ns
                        3D IN NS        ns.friend.bogus.
                        3D IN MX        10 mail
                        3D IN MX        20 mail.friend.bogus.
                        3D IN TXT       "Linux.Bogus, your DNS consultants"
gw                      3D IN TXT       "The router"
                        3D IN HINFO     "Cisco" "IOS"
                        3D IN A         192.168.196.1
localhost               3D IN A         127.0.0.1
mail                    3D IN HINFO     "386sx" "Linux 1.2"
                        3D IN MX        10 mail
                        3D IN MX        20 mail.friend.bogus.
                        3D IN A         192.168.196.4
www                     3D IN CNAME     ns
donald                  3D IN TXT       "DEK"
                        3D IN HINFO     "i486" "Linux 2.0"
                        3D IN MX        10 mail
                        3D IN MX        20 mail.friend.bogus.
                        3D IN A         192.168.196.3
ns                      3D IN HINFO     "Pentium" "Linux 2.0"
                        3D IN MX        10 mail
                        3D IN MX        20 mail.friend.bogus.
                        3D IN A         192.168.196.2
ftp                     3D IN HINFO     "P6" "Linux 2.1.86"
                        3D IN MX        10 mail
                        3D IN MX        20 mail.friend.bogus.
                        3D IN A         192.168.196.5
@                       3D IN SOA       ns hostmaster (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        4W              ; expiry
                                        1D )            ; minimum

;; Received 29 answers (29 records).
;; FROM: lookfar to SERVER: 127.0.0.1
;; WHEN: Sat Dec 16 01:35:05 2000
</Screen>

</Para>

<Para>
good! °á°ú°¡ Á¸ ÆÄÀÏ°ú ºñ½ÁÇÏ°Ô º¸ÀÎ´Ù. <Literal remap="tt">www</Literal>ºÎºÐ¿¡ 
´ëÇÑ Á¤º¸¸¦ È®ÀÎÇØº¸ÀÚ
</Para>

<Para>

<Screen>
$ dig www.linux.bogus +pfmin
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 27345
;; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 1
;; QUERY SECTION:
;;      www.linux.bogus, type = A, class = IN

;; ANSWER SECTION:
www.linux.bogus.        3D IN CNAME     ns.linux.bogus.
ns.linux.bogus.         3D IN A         192.168.196.2
</Screen>

</Para>

<Para>
´Ù½Ã º¸¸é <Literal remap="tt">www.linux.bogus</Literal>ÀÇ ½ÇÁ¦ ÀÌ¸§Àº 
<Literal remap="tt">ns.linux.bogus</Literal>ÀÌ´Ù. ±×¸®°í ns°¡ °¡Áø Á¤º¸µµ 
º¸¿©ÁÖ¸ç ÃæºÐÈ÷ ¿¬°áµÉ ¼ö ÀÖ´Ù.
</Para>

<Para>
ÀÌÁ¦ Àý¹Ý Çß´Ù.
</Para>

</Sect2>

<Sect2>
<Title>The reverse zone(¿ªº¯È¯Á¸)</Title>

<Para>
ÇÁ·Î±×·¥µéÀº linux.bogusÀÇ ÀÌ¸§À» Á¢¼Ó°¡´ÉÇÑ ÁÖ¼Ò·Î ¹Ù²ã¾ß Á¢¼ÓÀÌ °¡´ÉÇÏ´Ù. 
±×·¯³ª ¿ªº¯È¯Á¸(reverse zone)ÀÌ ÀÖ¾î¾ß DNS°¡ ÁÖ¼Ò¸¦ ÀÌ¸§À¸·Î ¹Ù²Ù´Â °ÍÀÌ °¡´ÉÇÏ´Ù. 
ÀÌ·¯ÇÑ ÀÌ¸§Àº ´ç½ÅÀÌ ÀÌ ¼­ºñ½º¸¦ »ç¿ëÇÒÁö ¸»Áö, ±×¸®°í »ç¿ëÇÑ´Ù¸é ¾ó¸¶¸¸Å­ÀÇ 
¿ì¼±¼øÀ§°¡ ÁÖ¾îÁö´ÂÁöµîÀ» °áÁ¤ÇÒ ´Ù¾çÇÑ Á¾·ùÀÇ ¼­¹ö ÀÌ¸§µé(FTP,IRC,WWW ±×¿Ü)¿¡¼­ 
»ç¿ëµÈ´Ù. ÀÎÅÍ³Ý¿¡¼­ ¸ðµç ¼­ºñ½º¿¡ ´ëÇÑ ¿ÏÀüÇÑ Á¢¼ÓÀ» À§ÇØ¼­´Â reverse zoneÀÌ ÇÊ¿äÇÏ´Ù.
</Para>

<Para>
<Literal remap="tt">named.conf</Literal>¿¡ Ãß°¡ÇØ º¸ÀÚ
</Para>

<Para>

<ProgramListing>
zone "196.168.192.in-addr.arpa" {
	notify no;
        type master;
        file "pz/192.168.196";
};
</ProgramListing>

</Para>

<Para>
<Literal remap="tt">0.0.127.in-addr.arpa</Literal>¿Í °°´Ù. ³»¿ëµµ À¯»çÇÏ´Ù.
</Para>

<Para>

<ProgramListing>
$TTL 3D
@	IN	SOA	ns.linux.bogus. hostmaster.linux.bogus. (
			199802151 ; Serial, todays date + todays serial
			8H	; Refresh
			2H      ; Retry
			4W	; Expire
			1D)	; Minimum TTL
		NS      ns.linux.bogus.

1		PTR	gw.linux.bogus.
2		PTR	ns.linux.bogus.
3		PTR	donald.linux.bogus.
4		PTR	mail.linux.bogus.
5		PTR	ftp.linux.bogus.
</ProgramListing>

</Para>

<Para>
ÀÌÁ¦ named¸¦ Àç±¸µ¿½ÃÅ°°í(<Literal remap="tt">ndc restart</Literal>) dig·Î ´Ù½Ã °Ë»çÇØ º¸ÀÚ
</Para>

<Para>

<ProgramListing>
$ dig -x 192.168.196.4 +pfmin
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 8764
;; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUERY SECTION:
;;      4.196.168.192.in-addr.arpa, type = ANY, class = IN

;; ANSWER SECTION:
4.196.168.192.in-addr.arpa.  3D IN PTR  mail.linux.bogus.
</ProgramListing>

</Para>

<Para>
±¦Âú¾Æ º¸ÀÎ´Ù. ¸ðµç ºÎºÐÀ» °Ë»çÇØ º¸ÀÚ
</Para>

<Para>

<ProgramListing>
dig -x 192.168.196 AXFR

; &#60;&#60;&#62;&#62; DiG 8.2 &#60;&#60;&#62;&#62; -x AXFR 
$ORIGIN 196.168.192.in-addr.arpa.
@                       3D IN SOA       ns.linux.bogus. hostmaster.linux.bogus. (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        4W              ; expiry
                                        1D )            ; minimum

                        3D IN NS        ns.linux.bogus.
4                       3D IN PTR       mail.linux.bogus.
2                       3D IN PTR       ns.linux.bogus.
5                       3D IN PTR       ftp.linux.bogus.
3                       3D IN PTR       donald.linux.bogus.
1                       3D IN PTR       gw.linux.bogus.
@                       3D IN SOA       ns.linux.bogus. hostmaster.linux.bogus. (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        4W              ; expiry
                                        1D )            ; minimum

;; Received 8 answers (8 records).
;; FROM: lookfar to SERVER: 127.0.0.1
;; WHEN: Sat Dec 16 01:44:03 2000
</ProgramListing>

</Para>

<Para>
Àß µÈ´Ù! °á°ú°¡ À§¿Í °°Áö ¾ÊÀ¸¸é syslogÀÇ ¿¡·¯ ¸Þ½ÃÁö¸¦ ºÁ¶ó. 
ÀÌ¹Ì Ã¹ºÎºÐÀÇ Starting Named¿¡¼­ ¼³¸íÇØ ³ù´Ù.
</Para>

</Sect2>

<Sect2>
<Title>ÁÖÀÇ»çÇ×</Title>

<Para>
Ãß°¡ÇÒ ºÎºÐÀÌ ÀÖ´Ù. À§¿¡ ¸í½ÃµÈ IP ÁÖ¼ÒµéÀº ÀüºÎ '»ç¼³¸Á'¿¡ ±¹ÇÑµÈ ¿¹½ÃÀÌ´Ù. 
ÀÌ°ÍÀº ÀÏ¹Ý ÀÎÅÍ³Ý¿¡´Â Àû¿ëµÇÁö ¾Ê´Â´Ù. ±×·¡¼­ ¾ÈÀüÇÏ°Ô ¿¹½Ã¸¦ ´Ù·ê ¼ö ÀÖ´Ù. 
µÎ¹øÂ° ºÎºÐÀº '<Literal remap="tt">notify no;</Literal>'¶ó´Â ºÎºÐÀÌ´Ù. named°¡ 
Á¸ÆÄÀÏÀÌ ¾÷µ¥ÀÌÆ® µÉ ¶§ ½½·¹ÀÌºê¼­¹ö¿¡ °øÁö°¡ µÇ¾î¼­´Â ¾ÈµÈ´Ù´Â ÀÌ¾ß±âÀÌ´Ù. 
BIND-8 ¹öÁ¯ÀÇ named´Â zoneÆÄÀÏÀÌ ¾÷µ¥ÀÌÆ® µÉ ¶§ zone ÆÄÀÏ¿¡ ÀÖ´Â NS·¹ÄÚµå¿¡ 
µî·ÏµÇ ÀÖ´Â ´Ù¸¥ ¼­¹öµé¿¡°Ô °øÁö¸¦ ÇÏ±â ¶§¹®ÀÌ´Ù. ÀÌ°ÍÀº ÀÏ¹ÝÀûÀÎ ÀÌ¿ë¿¡´Â 
ÆíÇÒ °ÍÀÌÁö¸¸ °³ÀÎÀûÀÎ ¿¬½À¿¡¼­´Â ÀÌ·¯ÇÑ ºÎºÐÀ» »ç¿ëÇÏÁö ¸»¾Æ¾ß ÇÒ °ÍÀÌ´Ù. 
¿ì¸®°¡ ÀÌ·¯ÇÑ °ÍÀ¸·Î ÀÎÅÍ³ÝÀ» ¾îÁö·´Èú ¼ö´Â ¾øÁö ¾Ê´Â°¡?
</Para>

<Para>
±×¸®°í ÀÌ°ÍÀº ¹°·Ð ¿ÏÀüÈ÷ Çã±¸ÀÌ´Ù. ½Ç·Ê¸¦ º¸·Á¸é ´ÙÀ½ ÀåÀ» 
ÂüÁ¶ÇÏ¶ó
</Para>

</Sect2>

<Sect2>
<Title>¿Ö reverse lookups ÀÌ ÀÛµ¿ÇÏÁö ¾Ê´Â°¡?</Title>

<Para>
¿ªº¯È¯ Á¸ÀÌ ¼³Á¤µÇ¾úÀ» ¶§ °¡²û name lookup(ÀÌ¸§°Ë»ç)ÀÌ µÇÁö ¾Ê¾Æ¼­ 
'¾ÆÂ÷'ÇÏ´Â ¼ø°£µéÀÌ ÀÖ´Ù. ¼öÇàÀü¿¡ ´ç½ÅÀÇ nameserver¿¡ ´ëÇØ ¿ªº¯È¯ °Ë»ç
(reverse lookups)¸¦ ÇÒ ÇÊ¿ä°¡ ÀÖ´Ù. ÀÛµ¿ÇÏÁö ¾ÊÀ¸¸é ÀÌ ¼¼ÆÃÀ» ÁøÇàÇÏ±â 
Àü¿¡ µÚ·Î °¡¼­ °íÃÄ¾ß ÇÑ´Ù.
</Para>

<Para>
ÀÏ¹ÝÀûÀ¸·Î ¿ªº¯È¯ °Ë»ç°¡(reverse looksup) µÇÁö ¾Ê´Â 2°¡Áö ÀÌÀ¯¸¦ µé¾î º¸°Ú´Ù.
</Para>

<Sect3>
<Title>¿ªº¯È¯Á¸ÀÌ Á¦´ë·Î À§ÀÓµÇÁö ¾Ê´Â °æ¿ì.</Title>

<Para>
³×Æ®¿öÅ© ÁÖ¼Ò¿Í µµ¸ÞÀÎÀ» °ø±ÞÇÏ´Â ¾÷Ã¼¿¡ ÀÏ¹ÝÀûÀ¸·Î µµ¸ÞÀÎ ÀÌ¸§À» À§Å¹ÇÏ°Ô µÈ´Ù. 
±×·¯¸é ¾÷Ã¼´Â NS ·¹ÄÚµå¿¡ Ãß°¡ÇÏ°í ¾Õ¿¡¼­ ¼³¸íÇÑ ÀÌ·Ð´ë·Î ³×ÀÓ¼­¹ö¸¦ Ã£´Â´Ù. 
ÀÐ¾îºÃ°ÚÁö¸¸ Á¦´ë·Î ÀÛµ¿µÇÁö ¾ÊÀ¸¸é ´Ù½Ã µ¹¾Æ°¡¼­ ÀÐ¾îºÁ¶ó.
</Para>

<Para>
¿ªº¯È¯ Á¸ ¿ª½Ã ¸Ã°ÜÁú °ÍÀÎµ¥ ¸¸¾à <Literal remap="tt">192.168.196</Literal>´ëÀÇ 
¸ÁÀ» ¾÷Ã¼·ÎºÎÅÍ <Literal remap="tt">linux.bogus</Literal>¶ó°í ¾ò¾ú´Ù¸é 
<Literal remap="tt">NS</Literal>·¹ÄÚµå¿¡ Æ÷¿öµå Á¸Ã³·³ ¿ªº¯È¯Á¸À» Ãß°¡ÇÒ °ÍÀÌ´Ù. 
<Literal remap="tt">in-addr.arpa</Literal>¸¦ µû¸£°í ÀÌ°ÍÀ¸·Î ¸ÁÀ» ±¸¼ºÇÏ¸é ÀÌ ¾ÈÀÇ 
¿À·ù¸¦ Ã£¾Æ¾ß ÇÒ °ÍÀÌ¸ç ´ëºÎºÐÀº ¾÷Ã¼ÀÇ ¹®Á¦ÀÌ´Ù. ¾÷Ã¼¿Í ¿¬¶ôÇØ¼­ ¿¡·¯¸¦ ¼öÁ¤ÇÏ¶ó.
</Para>

</Sect3>

<Sect3>
<Title>Å¬·¡½º°¡ ¾ø´Â ¼­ºê³ÝÀ» ¾ò´Â °æ¿ì</Title>

<Para>
Á»´õ ¹ßÀüµÈ Çü½ÄÀÌÁö¸¸ ¿ä»çÀÌ´Â ´ç½ÅÀÌ ¼Ò±Ô¸ð ¾÷Ã¼ÀÌ¸é °¡Áö°í ÀÖÀ» ¹ýÇÑ ÀÏ¹ÝÀûÀÎ ±â¼úÀÌ µÇ¾ú´Ù. 
</Para>

<Para>
classless ¼­ºê³ÝÀº ¿ä»õ ÀÎÅÍ³ÝÀÇ Ãß¼¼ÀÌ´Ù. ¾ó¸¶Àü¸¸ÇØµµ IP ºÎÁ·À¸·Î °í»ýÀÌ ¸¹¾Ò´Ù. 
IETF(Internet Engineering Task Force)ÀÇ ¶È¶ÈÇÑ ÀÌµéÀÌ ¸Ó¸®¸¦ ¸Â´ë°í ¹®Á¦¸¦ ÇØ°áÇß´Ù. 
±× °á°ú·Î C Å¬·¡½ºº¸´Ù ÀÛÀº ¼­ºê³ÝÀ» ¾ò°Ô µÇ¾ú´Âµ¥ ¿©±â¿¡ ¾à°£ÀÇ ¹®Á¦°¡ ÀÖ´Ù. 
<ULink URL="http://www.acmebw.com/askmrdns/00007.htm">Mr. DNS</ULink>ÀÇ »çÀÌÆ®¿¡ °¡¼­ 
»ç¿ë¹ý°ú ÇØ°á¹ýµµ Âü°íÇÏ¶ó.
</Para>

<Para>
ÀÐ¾îº¸Áö ¾Ê¾Ò´Ù¸é È®ÀÎÇÏ±æ ¹Ù¶õ´Ù.
</Para>

<Para>
Ã¹¹øÂ° ºÎºÐÀº ÀÎÅÍ³Ý °ø±Þ¾÷Ã¼°¡ Mr.DNSÀÇ ±â¼úÀ» ÀÎ½ÄÇÏÁö ¸øÇÑ´Ù´Â ¹®Á¦ÀÌ´Ù. ¸ðµç 
ÀÎÅÍ³Ý ¾÷Ã¼°¡ ´Ù ±×·¯´Â °ÍÀº ¾Æ´ÏÁö¸¸ ¸¸¾à ÀÌ·± °æ¿ì°¡ »ý±â¸é ´ç½ÅÀÌ ¿øÀÎÀ» ¼³¸íÇÏ°í 
º¸ÃæÇØ Áà¾ß ÇÑ´Ù. ¹°·Ð ´ç½ÅÀÌ ÀÌ ºÎºÐÀ» ¸ÕÀú ÀÌÇØÇÏ°í ÀÖ¾î¾ß ÇÑ´Ù. ±×·¯¸é ±×µéÀÌ ¿ªº¯È¯ 
Á¸À» ¼³Á¤ÇÏ°í dig·Î È®ÀÎÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
µÎ¹øÂ° ºÎºÐÀº ±â¼úÀ» ¸íÈ®ÇÏ°Ô ÀÌÇØÇÏÁö ¸øÇÑ´Ù´Â °ÍÀÌ´Ù. ¾ÕºÎºÐÀÌ È®½ÇÇÏÁö ¾Ê´Ù¸é ´Ù½Ã 
µ¹¾Æ°¡¼­ È®ÀÎÇØº¸±æ. ±×µéÀº Dr.DNS¿¡¼­ ³ª¿Â µ¥·Î Å¬·¡½º ¾ø´Â ¿ªº¯È¯ Á¸À» »ý¼ºÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
¶Ç´Ù¸¥ º¹º´ÀÌ ÀÖ´Ù. ¿À·¡µÈ resolver´Â <Literal remap="tt">CNAME</Literal> Æ®¸¯À» µû¸£Áö 
¾Ê°í ¿ªº¯È¯ Á¸ÀÇ °¡µ¿À» ¸·À» °ÍÀÌ´Ù. Àß¸øµÈ Å¬·¡½º¸¦ ÇÒ´çÇÏ°í Á¢¼ÓÀ» °ÅºÎÇÏ±âµµÇÑ´Ù. 
ÀÌ·¯ÇÑ °æ¿ìÀÇ ÇØ°áÃ¥Àº ÀÎÅÍ³Ý °ø±Þ¾÷Ã¼¿¡ ¹®ÀÇÇØ¼­ classless Á¸ ÆÄÀÏ¿¡ CNAME ´ë½Å 
PTR·¹ÄÚµå¸¦ Á÷Á¢ ³Ö´Â °ÍÀÌ´Ù.
</Para>

<Para>
¸î¸î ISP¾÷Ã¼µéÀº automasical systemÀÌ³ª ¿ªµµ¸ÞÀÎÀ» ¸ÞÇÎÇÏ´Â ½ÄÀÇ À¥±â¹Ý ÆûÀ¸·Î 
ÀÌ°ÍÀ» Á¶ÀýÇÏ±âµµ ÇÑ´Ù.
</Para>

</Sect3>

</Sect2>

<Sect2>
<Title>Slave servers(2Â÷ ³×ÀÓ¼­¹ö)</Title>

<Para>
master ¼­¹ö¿¡ Á¸ÆÄÀÏ ¼³Á¤À» Á¦´ë·Î Çß´Ù¸é ÀÌÁ¦´Â ÇÏ³ª ÀÌ»óÀÇ slave¼­¹öµµ ¼³Á¤ÇØ¾ß 
ÇÒ °ÍÀÌ´Ù. slave ¼­¹ö´Â ²À ÇÊ¿äÇÑ °ÍÀÌ´Ù. 1Â÷ µµ¸ÞÀÎÀÌ Á×¾î ¹ö·Áµµ »ç¶÷µéÀº 2Â÷ 
³×ÀÓ¼­¹ö·Î Ã£¾Æ°¡ Á¤º¸¸¦ ¾ò°Ô µÉ °ÍÀÌ´Ù. slave ¼­¹ö´Â 1Â÷ ¼­¹ö¿Í ¸Ö¸® ¶³¾îÁ® ÀÖ´Â°ÍÀÌ 
ÁÁ´Ù. 1Â÷ DNS¼­¹ö¿Í 2Â÷ DNS¼­¹ö´Â µÉ ¼ö ÀÖÀ¸¸é Power Supply,LAN,ISP,µµ½Ã, ±¹°¡µî.. 
°øÀ¯ÇÏ´Â °ÍÀÌ ÀûÀ» ¼ö·Ï ÁÁ´Ù. master¿Í slave °¡ À§ÀÇ »çÇ×µéÀÌ ¸ðµÎ ´Ù¸¥ °æ¿ì¶ó¸é 
´ç½ÅÀÇ slave´Â ¸Å¿ì ÀßµÈ ¿¹ÀÌ´Ù.
</Para>

<Para>
slave´Â ´Ü¼øÈ÷ master·ÎºÎÅÍ Á¸ÆÄÀÏµéÀ» º¹»çÇØ¿Â´Ù. ¾Æ·¡¿Í °°ÀÌ ¼³Á¤ÇÏ¸é µÈ´Ù.
</Para>

<Para>

<ProgramListing>
zone "linux.bogus" {
	type slave;
	file "sz/linux.bogus";
	masters { 192.168.196.2; };
};
</ProgramListing>

</Para>

<Para>
´Ü¼øÈ÷ µ¥ÀÌÅÍ°¡ º¹»çµÇ´Â ±¸Á¶ÀÌ´Ù. ÀÌ·¯ÇÑ ÆÄÀÏº¹»ç´Â SOA¿¡ ÀÇÇØ Á¶Á¤µÈ´Ù.
</Para>

<Para>

<ProgramListing>
@	IN	SOA	ns.linux.bogus. hostmaster.linux.bogus. (
			199802151	; serial, todays date + todays serial #
			8H		; refresh, seconds
			2H		; retry, seconds
			4W		; expire, seconds
			1D )		; minimum, seconds
</ProgramListing>

</Para>

<Para>
masterÀÇ ½Ã¸®¾ó³Ñ¹ö°¡ ´ÜÁö slaveº¸´Ù Å©±â¸¸ ÇÏ¸é Á¸ÆÄÀÏÀÌ Àü¼ÛµÈ´Ù. 
slaveÀÇ refresh´Â master°¡ ¾÷µ¥ÀÌÆ® µÉ ¶§¸¶´Ù Ã¼Å©ÇÒ °ÍÀÌ´Ù. ¸¸¾à¿¡ Ã¼Å©°¡ 
µÇÁö ¾ÊÀ¸¸é(master°¡ Á×¾î¼­) ¸Å¹ø Àç½Ãµµ ÇÏ¸é¼­ Ã¼Å©ÇÒ °ÍÀÌ´Ù. expire±â°£±îÁö 
½ÇÆÐ¸¦ ÇÑ´Ù¸é slave´Â Á¸ÆÄÀÏÀ» Á¦°ÅÇÏ°í ´õÀÌ»ó ³×ÀÓ¼­¹öÀÇ ±â´ÉÀ» ÇÏÁö ¾ÊÀ» °ÍÀÌ´Ù.
</Para>

</Sect2>

</Sect1>

<Sect1 id="security">
<Title>±âº»º¸¾È¿É¼Ç
</Title>

<Para>
<Emphasis>By Jamie Norrish</Emphasis>
</Para>

<Para>
<Emphasis remap="bf">¼³Á¤¿É¼ÇÀ» ÀÌ¿ëÇÏ¿© ¹®Á¦ÀÇ ¼ÒÁö¸¦ ÁÙÀÌ±â.</Emphasis>
</Para>

<Para>
¼­¹öÀÇ ºÎÇÏ¸¦ ÁÙÀÌ°í º¸¾ÈÀ» ³ôÈ÷±â À§ÇÑ ¸î°¡Áö °£´ÜÇÑ ´Ü°èµéÀÌ ÀÖ´Ù. ¿©±â ³ª¿À´Â 
ºÎºÐÀÌ ½ÃÀÛÇÒ¶§ ³ª¿Â ºÎºÐº¸´Ù ´õ ³ª°¡´Â °ÍÀº ¾ø´Ù. ¸¸¾à ´ç½ÅÀÌ º¸¾È¿¡ °ü½ÉÀÌ ¾ø´Ù¸é
(¾Æ¸¶ ±×·²°ÍÀÌÁö¸¸) ³Ý»óÀÇ ´Ù¸¥ ÀÚ¿øµéÀ» »ìÆìº¸±æ ¹Ù¶õ´Ù(¸¶Áö¸· Àå ÂüÁ¶)
</Para>

<Para>
¼³Á¤Àº <Literal remap="tt">named.conf</Literal>¿¡¼­ ÀÌ·ç¾îÁø´Ù. file 
<Literal remap="tt">options</Literal>ºÎºÐÀÌ ÁöÁ¤µÇ¸é ÆÄÀÏ¿¡ ÁöÁ¤µÈ ¸ðµç 
<Literal remap="tt">zone</Literal> ÆÄÀÏµéÀÌ Àû¿ëÀÌ µÈ´Ù. <Literal remap="tt">zone</Literal> 
ÆÄÀÏºÎºÐÀÌ ÁöÁ¤ÀÌ µÇ¸é ±× zone¿¡¼­¸¸ Àû¿ëµÈ´Ù. <Literal remap="tt">zone</Literal> ºÎºÐÀº 
<Literal remap="tt">options</Literal> ºÎºÐÀ» overrideÇÑ´Ù.
</Para>

<Sect2>
<Title>Àü¼Û¿¡¼­ÀÇ Á¦ÇÑ</Title>

<Para>
slave ¼­¹ö°¡ µµ¸ÞÀÎ¿¡ ´ëÇØ ÀÀ´äÇÒ ¼ö ÀÖ°Ô ÇÏ·Á¸é ÁÖ¼­¹ö·ÎºÎÅÍ zone Á¤º¸¸¦ Àü´Þ¹Þ¾Æ¾ß 
ÇÑ´Ù. ÀÌ·¯ÇÑ ¿äÃ»À» ÇÏ´Â ºÎºÐÀº ÀÏºÎºÐÀÌ¸é µÈ´Ù. <Literal remap="tt">allow-transfer</Literal> 
¿É¼ÇÀ¸·Î Àü¼ÛÀ» Á¦ÇÑ ÇÒ ¼ö ÀÖ´Ù.192.168.1.4 ÁÖ¼Ò´Â ns.friend.bogusÀÇ ÁÖ¼ÒÀÌ°í 
µð¹ö±ë ¸ñÀûÀ¸·Î Ãß°¡µÇ¾ú´Ù.
</Para>

<Para>

<ProgramListing>
zone "linux.bogus" {
      allow-transfer { 192.168.1.4; localhost; };
};
</ProgramListing>

</Para>

<Para>
zone Àü¼ÛÀ» Á¦ÇÑÇÔÀ¸·Î¼­ Á¤º¸°¡ ÇÊ¿äÇÑ »ç¶÷¸¸ÀÌ ÁúÀÇ¸¦ ÇÒ ¼ö ÀÖ°í ±×¿Ü¿¡´Â DNS ¼Â¾÷¿¡ ´ëÇÑ 
Á¤º¸¸¦ ¾òÀ» ¼ö ¾ø´Ù..
</Para>

</Sect2>

<Sect2>
<Title>spoofingÀ¸·ÎºÎÅÍÀÇ º¸È£</Title>

<Para>
¿ì¼± ÀÚ½ÅÀÇ ÄÄÇ»ÅÍ ÀÌ¿Ü¿¡´Â ¾î¶² ÁúÀÇµµ ºÒ°¡´ÉÇÏ°Ô ÇÏ¶ó(³»ºÎ/local Àº Á¦¿Ü). 
ÀÌ°ÍÀº ¾ÇÀÇÀûÀÎ DNS»ç¿ëÀ» ¸·¾ÆÁÙ °ÍÀÌ°í ¼­¹öÀÇ ºÒÇÊ¿äÇÑ ÀÌ¿ëÀ» ÁÙ¿© ÁÙ °ÍÀÌ´Ù.
</Para>

<Para>

<ProgramListing>
options {
      allow-query { 192.168.196.0/24; localhost; };
};

zone "linux.bogus" {
      allow-query { any; };
};

zone "196.168.192.in-addr.arpa" {
      allow-query { any; };
};
</ProgramListing>

</Para>

<Para>
±×¸®°í ³»ºÎ/localÀ» Á¦¿ÜÇÑ ³ª¸ÓÁö¿¡¼­ Àç±ÍÀûÀÎ ÁúÀÇ¸¦ ºÒ°¡´ÉÇÏ°Ô ÇÏ¶ó. ÀÌ°ÍÀº 
cache °ø°ÝÀÇ À§Çè(Àß¸øµÈ µ¥ÀÌÅÍ¸¦ Àü¼ÛÇÏ´Â °æ¿ì)À» ÁÙ¿©ÁÙ °ÍÀÌ´Ù.
</Para>

<Para>

<ProgramListing>
options {
	allow-recursion { 192.168.196.0/24; localhost; };
};
</ProgramListing>

</Para>

</Sect2>

<Sect2>
<Title>root¿ÜÀÇ °èÁ¤À¸·Î named ±¸µ¿</Title>

<Para>
named¸¦ root°¡ ¾Æ´Ñ user·Î ±¸µ¿½ÃÅ°´Â °ÍÀº ¾ÆÁÖ ÁÁÀº »ý°¢ÀÌ´Ù. ÀÌ·¸°Ô µÇ¸é 
Å©·¡Ä¿¿¡°Ô ±ÇÇÑÀ» »¯°Üµµ Á¦ÇÑÀûÀÏ ¼ö ¹Û¿¡ ¾ø´Ù. named¸¦ ±¸µ¿ÇÒ user¿Í 
groupÀ» »ý¼ºÇÏ°í named°¡ ±¸µ¿µÇ°Ô init script¸¦ ¼öÁ¤ÇÏ¶ó. named¸¦ »õ 
userÀÇ groupÀÌ Á¶Á¤ÇÏµµ·Ï -u ¿Í -g flag¸¦ Áà¶ó.
</Para>

<Para>
¿¹¸¦ µé¾î Debian GNU/Linux2.2 °æ¿ì <Literal remap="tt">/etc/init.d/bind</Literal> script´Â 
¾Æ·¡¿Í °°ÀÌ ¼öÁ¤ÇÒ ¼ö ÀÖ´Ù. (user¿Í groupÀÌ »ý±ä »óÈ²¿¡¼­)
</Para>

<Para>

<ProgramListing>
start-stop-daemon --start --quiet --exec /usr/sbin/named -- -u named -g named
</ProgramListing>

</Para>

<Para>
RedHatÀÌ³ª ´Ù¸¥ ¹èÆ÷ÆÇµµ ¸¶Âù°¡ÁöÀÌ´Ù. Dave Lugo°¡ secure dual chroot setup¿¡ ´ëÇØ¼­ 
<ULink URL="http://www.etherboy.com/dns/chrootdns.html">http://www.etherboy.com/dns/chrootdns.html</ULink>¿¡ ±â¼úÇØ ³õ¾Ò´Ù. 
°ü½ÉÀÖÀ¸¸é Âü°íÇÏ±æ
</Para>

</Sect2>

</Sect1>

<Sect1 id="real-example">
<Title>½Çµµ¸ÞÀÎÀÇ ¿¹</Title>

<Para>
<Emphasis remap="bf">½ÇÁ¦ µµ¸ÞÀÎÀÇ ¿¹</Emphasis>
</Para>

<Para>
ÀÌÁ¦ ½ÇÁ¦ ¿¹½Ã·Î »ç¿ëÀÌ µÇ°í ÀÖ´Â ¿¹¸¦ µé¾îº¸±â·Î ÇÑ´Ù
</Para>

<Para>
³ª´Â ¿¹Á¦·Î Dave BullockÀÇ LAND-5¸¦ ¿¹·Î µé¾î º»´Ù. ÀÌ ÆÄÀÏµéÀº 1996³â 9¿ù 24ÀÏ¿¡ 
¸¸µé¾î Á³°í BIND-8±ÔÁ¤¿¡ ¸Â°Ô ¾à°£ È®ÀåÆíÁýÀ» ÇØ ³õ¾Ò´Ù. Áö±ÝÀÇ LAND-5 named 
¼­¹ö¸¦ ÁúÀÇÇÑ´Ù¸é ¾à°£ÀÇ Â÷ÀÌ°¡ ÀÖÀ» °ÍÀÌ´Ù.
</Para>

<Sect2>
<Title>/etc/named.conf (or /var/named/named.conf)</Title>

<Para>
ÀÌÁ¦ 127.0.0 net°ú LAND-5ÀÇ <Literal remap="tt">206.6.177</Literal> ¼­ºê³Ý¿¡ ÇÊ¿äÇÑ 
2°³ÀÇ reverse zoneÀÌ ÀÖ´Â master zoneºÎºÐ¿¡ ´ëÇØ¼­ º¸±â·Î ÇÏÀÚ. ±×¸®°í land-5ÀÇ Æ÷¿öµå 
Á¸ÀÎ <Literal remap="tt">land-5.com</Literal>µµ º¸±â·Î ÇÏÀÚ. HOWTO¿¡¼­ ¾²´ø pz ´ë½Å¿¡ 
<Literal remap="tt">zone</Literal>ÀÌ¶ó´Â µð·ºÅä¸®¸¦ ¾²´Â °Íµµ ÁÖÀÇÇÏ±æ ¹Ù¶õ´Ù.
</Para>

<Para>

<ProgramListing>
// Boot file for LAND-5 name server

options {
	directory "/var/named";
};

zone "." {
	type hint;
	file "root.hints";
};

zone "0.0.127.in-addr.arpa" {
	type master;
	file "zone/127.0.0";
};

zone "land-5.com" {
	type master;
	file "zone/land-5.com";
};

zone "177.6.206.in-addr.arpa" {
	type master;
	file "zone/206.6.177";
};
</ProgramListing>

</Para>

<Para>
¸¸¾à À§¿Í °°ÀÌ named.confÆÄÀÏÀ» ¼³Á¤Çß´Ù¸é <Emphasis remap="bf">Á¦¹ß!</Emphasis> 
2°³ÀÇ <Literal remap="tt">land-5</Literal> zone¿¡ 
"<Literal remap="tt">notify no;</Literal>"¶ó°í Àû¾î¼­ Ãæµ¹À» ¹æÁöÇØÁÖ±æ ¹Ù¶õ´Ù.
</Sect2>

<Sect2>
<Title>/var/named/root.hints</Title>

<Para>
ÀÌ ÆÄÀÏµéÀÌ À¯µ¿ÀûÀÌ¶ó´Â »ç½ÇÀ» ±â¾ïÇØ¶ó. ±×¸®°í ÀÌ°ÍÀÌ ¿¾³¯ °ÍÀÌ¶ó´Â °Íµµ ±â¾ïÇÏ¶ó. 
ÀÌÀü¿¡ ¼³¸íÇÑ dig ·Î Áö±ÝÀÇ °ÍÀ» ÃøÁ¤ÇÏ´Â °ÍÀÌ ÈÎ¾À ³ªÀ» °ÍÀÌ´Ù.
</Para>

<Para>

<ProgramListing>
; &#60;&#60;&#62;&#62; DiG 8.1 &#60;&#60;&#62;&#62; @A.ROOT-SERVERS.NET. 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; -&#62;&#62;HEADER&#60;&#60;- opcode: QUERY, status: NOERROR, id: 10
;; flags: qr aa rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 13
;; QUERY SECTION:
;;	., type = NS, class = IN

;; ANSWER SECTION:
.			6D IN NS	G.ROOT-SERVERS.NET.
.			6D IN NS	J.ROOT-SERVERS.NET.
.			6D IN NS	K.ROOT-SERVERS.NET.
.			6D IN NS	L.ROOT-SERVERS.NET.
.			6D IN NS	M.ROOT-SERVERS.NET.
.			6D IN NS	A.ROOT-SERVERS.NET.
.			6D IN NS	H.ROOT-SERVERS.NET.
.			6D IN NS	B.ROOT-SERVERS.NET.
.			6D IN NS	C.ROOT-SERVERS.NET.
.			6D IN NS	D.ROOT-SERVERS.NET.
.			6D IN NS	E.ROOT-SERVERS.NET.
.			6D IN NS	I.ROOT-SERVERS.NET.
.			6D IN NS	F.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
G.ROOT-SERVERS.NET.	5w6d16h IN A	192.112.36.4
J.ROOT-SERVERS.NET.	5w6d16h IN A	198.41.0.10
K.ROOT-SERVERS.NET.	5w6d16h IN A	193.0.14.129
L.ROOT-SERVERS.NET.	5w6d16h IN A	198.32.64.12
M.ROOT-SERVERS.NET.	5w6d16h IN A	202.12.27.33
A.ROOT-SERVERS.NET.	5w6d16h IN A	198.41.0.4
H.ROOT-SERVERS.NET.	5w6d16h IN A	128.63.2.53
B.ROOT-SERVERS.NET.	5w6d16h IN A	128.9.0.107
C.ROOT-SERVERS.NET.	5w6d16h IN A	192.33.4.12
D.ROOT-SERVERS.NET.	5w6d16h IN A	128.8.10.90
E.ROOT-SERVERS.NET.	5w6d16h IN A	192.203.230.10
I.ROOT-SERVERS.NET.	5w6d16h IN A	192.36.148.17
F.ROOT-SERVERS.NET.	5w6d16h IN A	192.5.5.241

;; Total query time: 215 msec
;; FROM: roke.uio.no to SERVER: A.ROOT-SERVERS.NET.  198.41.0.4
;; WHEN: Sun Feb 15 01:22:51 1998
;; MSG SIZE  sent: 17  rcvd: 436
</ProgramListing>

</Para>

</Sect2>

<Sect2>
<Title>/var/named/zone/127.0.0</Title>

<Para>
±âº»ÀûÀ¸·Î SOA·¹ÄÚ´Â ÇÊ¼öÀÌ°í, ÀÌ ·¹ÄÚµå´Â 127.0.0.1¸¦ 
<Literal remap="tt">localhost</Literal>·Î ¸ÅÇÎÇÑ´Ù. 
µÑ ´Ù ÇÊ¿äÇÏ´Ù. ÆÄÀÏ ¾È¿¡ ÀÌ ÀÌ»ó ÇÊ¿äÇÏÁöµµ ¾ÊÀ¸¸ç ³×ÀÓ¼­¹ö³ª hostmaster ÁÖ¼Ò°¡ 
¹Ù²îÁö ¾Ê´Â ÀÌ»óÀº ¾÷µ¥ÀÌÆ® ÇÏÁö ¾Ê´Â°Ô ÁÁ´Ù.
</Para>

<Para>

<ProgramListing>
@               IN      SOA     land-5.com. root.land-5.com. (
                                199609203       ; Serial
                                28800   ; Refresh
                                7200    ; Retry
                                604800  ; Expire
                                86400)  ; Minimum TTL
                        NS      land-5.com.
        
1                       PTR     localhost.
</ProgramListing>

</Para>

<Para>
BIND¸¦ ±×³É ÀÎ½ºÅçÇß´Ù¸é(rpmÀÌ³ª ¿É¼ÇÀÌ ¾ø´Â °æ¿ì¸¦ ÀÌ¾ß±âÇÏ´Â °Í °°´Ù.) 
À§¿¡ <Literal remap="tt">$TTL</Literal>¶óÀÎÀÌ À§¿Í °°ÀÌ ºüÁ® ÀÖÀ» °ÍÀÌ´Ù. 
Àü¿¡´Â ¾²Áö ¾Ê´Ù°¡ BIND 8.2 ¹öÁ¯ºÎÅÍ ÀÌ°ÍÀ» Ãß°¡ÇÏ±â ½ÃÀÛÇß´Ù. 
ÀÌ ¶óÀÎÀÌ ºüÁø°ÍÀ» º¸´Âµ¥·Î ³Ö´Â °ÍÀÌ ÁÁÀ» °ÍÀÌ´Ù.
</Para>

</Sect2>

<Sect2>
<Title>/var/named/zone/land-5.com</Title>

<Para>
¿ì¸®´Â SOA ·¹ÄÚµå¿¡¼­ NS·¹ÄÚµå°¡ ¾²ÀÌ´Â °ÍÀ» ºÃ´Ù. ¿ì¸®´Â 2Â÷ ³×ÀÓ¼­¹ö·Î 
<Literal remap="tt">ns2.psi.net</Literal>ÀÌ¶ó°í µÇÀÖ´Â °ÍÀ» º¸°Ô µÉ °ÍÀÌ´Ù. 
ÀÌ°ÍÀº 2Â÷ ¼­¹ö·Î Ç×»ó off¶óÀÎ»ó¿¡ ÀÖ¾î¾ß ÇÏ¸ç ¹é¾÷¿ëÀ¸·Î »ç¿ëµÈ´Ù´Â °ÍÀÌ´Ù. 
¶ÇÇÑ master È£½ºÆ®°¡ <Literal remap="tt">land-5</Literal> ÀÌ°í ÀÌ°ÍÀº ¿©·¯ 
´Ù¸¥ ¼­ºñ½º¸¦ ÇÏ°Ô µÈ´Ù.¿©±â¼­´Â CNAMEÀ» »ç¿ëÇÑ´Ù. (´ëÃ¼ÇÒ ¼ö ÀÖ´Â °ÍÀ¸·Î´Â 
A·¹ÄÚµå°¡ ÀÖ´Ù.)
</Para>

<Para>i
SOA Ç×¸ñ¿¡¼­ ¾Ë ¼ö ÀÖµíÀÌ, Á¸ ÆÄÀÏÀº originÀÌ <Literal remap="tt">land-5.com</Literal>
ÀÌ¸ç °ü¸®ÀÚ´Â <Literal remap="tt">root@land-5.com</Literal>ÀÌ´Ù. 
<Literal remap="tt">hostmaster</Literal>´Â °ü¸®ÀÚÀÇ ÁÖ¼Ò·Î ÀÚÁÖ »ç¿ëµÇ´Â °ÍÀÌ´Ù. 
½Ã¸®¾ó ³Ñ¹ö´Â ÀÇ·ÊÀûÀ¸·Î yyyymmdd Çü½Ä¿¡ ±×³¯ÀÇ ½Ã¸®¾ó ³Ñ¹ö¸¦ µ¡ºÙÀÎ´Ù. ¾Æ·¡¼­ º¸¸é 
¾Æ¸¶ ÀÌ Áö¿ª ÆÄÀÏÀº 1996³â 9¿ù 20ÀÏ ¹öÀü 6ÀÏ °ÍÀÌ´Ù. ½Ã¸®¾ó ³Ñ¹ö´Â ÇÑ¹æÇâÀ¸·Î¸¸ Áõ°¡ÇØ¾ß 
ÇÔÀ» ¸í½ÉÇÏÀÚ. ¿©±â¼­´Â ±×³¯ÀÇ ½Ã¸®¾ó ³Ñ¹ö°¡ ÇÑÀÚ¸®´Ù. ±×·¯¹Ç·Î 9¹øÀ» ÆíÁýÇÏ°í ³ª¼­ ¶Ç 
ÆíÁýÇÏ·Á¸é ³»ÀÏÀ» ±â´Ù·Á¾ß ÇÒ °ÍÀÌ´Ù. µÎ ÀÚ¸®¼ö »ç¿ëÀ» °í·ÁÇÏÀÚ.
</Para>

<Para>

<ProgramListing>
@       IN      SOA     land-5.com. root.land-5.com. (
                        199609206       ; serial, todays date + todays serial #
                        8H		; refresh, seconds
                        2H		; retry, seconds
                        4W		; expire, seconds
                        1D )		; minimum, seconds
                NS      land-5.com.
                NS      ns2.psi.net.
                MX      10 land-5.com.  ; Primary Mail Exchanger
                TXT     "LAND-5 Corporation"

localhost	A	127.0.0.1

router          A       206.6.177.1
        
land-5.com.     A       206.6.177.2
ns		A	206.6.177.3
www             A	207.159.141.192

ftp             CNAME   land-5.com.
mail            CNAME   land-5.com.
news            CNAME   land-5.com.

funn            A       206.6.177.2

;
;       Workstations
;
ws-177200	A       206.6.177.200
                MX      10 land-5.com.   ; Primary Mail Host
ws-177201       A       206.6.177.201
                MX      10 land-5.com.   ; Primary Mail Host
ws-177202       A       206.6.177.202
                MX      10 land-5.com.   ; Primary Mail Host
ws-177203       A       206.6.177.203
                MX      10 land-5.com.   ; Primary Mail Host
ws-177204       A       206.6.177.204
                MX      10 land-5.com.   ; Primary Mail Host
ws-177205       A       206.6.177.205
                MX      10 land-5.com.   ; Primary Mail Host
; {Many repetitive definitions deleted - SNIP}
ws-177250       A       206.6.177.250
                MX      10 land-5.com.   ; Primary Mail Host
ws-177251       A       206.6.177.251
                MX      10 land-5.com.   ; Primary Mail Host
ws-177252       A       206.6.177.252
                MX      10 land-5.com.   ; Primary Mail Host
ws-177253       A       206.6.177.253
                MX      10 land-5.com.   ; Primary Mail Host
ws-177254       A       206.6.177.254
                MX      10 land-5.com.   ; Primary Mail Host
</ProgramListing>

</Para>

<Para>
È®ÀÎÇØ º¸¸é ¾Ë°ÚÁö¸¸ host ¸íÀÌ <Literal remap="tt">ws&lowbar;</Literal><Emphasis>number</Emphasis>
Çü½ÄÀ¸·Î µÇ¾îÀÖ´Ù. BIND4 ¹öÁ¯¿¡¼­´Â named¸¦ ½ÃÀÛÇÒ ¶§ ¾²ÀÌ´Â È£½ºÆ®¸íÀÌ °­Á¦ÀûÀ¸·Î Á¦ÇÑµÇ¾ú´Ù. 
±×·¯³ª BIND 8¿¡¼­´Â ÀÌ·¯ÇÑ °ÍÀÌ Àû¿ëµÇÁö ¾ÊÀ¸¹Ç·Î '&lowbar;'(underline) ´ë½Å¿¡ '-'(dash)·Î ¹Ù²Ù¾ú´Ù.
</Para>

<Para>
¶Ç ÇÏ³ª ÁÖ¸ñÇØ¾ß ÇÒ ºÎºÐÀº workstation ÀÇ ÀÌ¸§ÀÌ °³ÀÎÀÇ ÀÌ¸§ÀÌ ¾Æ´Ï°í IP ÁÖ¼ÒÀÇ ³¡ 
2ºÎºÐÀÌ¶ó´Â °ÍÀÌ´Ù. ÀÌ·¯ÇÑ °ÍµéÀº °ü¸®¸¦ ÆíÇÏ°Ô ÇÒ ¼ö ÀÖ°ÚÁö¸¸ Á¶±ÝÀº ºñÀÎ°£ÀûÀÌ°í 
°í°´°úÀÇ ºÒ½ÅÀÇ ¿äÀÎÀÌ µÉ ¼öµµ ÀÖ´Ù.
</Para>

<Para>
¶ÇÇÑ <Literal remap="tt">funn.land-5.com</Literal>ÀÌ <Literal remap="tt">land-5.com</Literal>
¸¦ CNAME´ë½Å¿¡ A ·¹ÄÚµå¸¦ ½è´Ù´Â »ç½ÇÀ» ÁÖÀÇÇØ¾ß ÇÑ´Ù. ÀÌ°ÍÀº Àü¿¡ ÀÌ¾ß±â Çßµí ÁÁÀº ¹æÄ§ÀÌ´Ù.
</Para>

</Sect2>

<Sect2>
<Title>/var/named/zone/206.6.177</Title>

<Para>
¾Æ·¡¿¡ ÀÌ ÆÄÀÏÀÇ ¼³¸íÀÌ ÀÖ´Ù
</Para>

<Para>

<ProgramListing>
@               IN      SOA     land-5.com. root.land-5.com. (
                                199609206       ; Serial
                                28800   ; Refresh
                                7200    ; Retry
                                604800  ; Expire
                                86400)  ; Minimum TTL
                        NS      land-5.com.
                        NS      ns2.psi.net.
;
;       Servers
;
1       PTR     router.land-5.com.
2       PTR     land-5.com.
2       PTR     funn.land-5.com.
;
;       Workstations
;
200     PTR     ws-177200.land-5.com.
201     PTR     ws-177201.land-5.com.
202     PTR     ws-177202.land-5.com.
203     PTR     ws-177203.land-5.com.
204     PTR     ws-177204.land-5.com.
205     PTR     ws-177205.land-5.com.
; {Many repetitive definitions deleted - SNIP}
250     PTR     ws-177250.land-5.com.
251     PTR     ws-177251.land-5.com.
252     PTR     ws-177252.land-5.com.
253     PTR     ws-177253.land-5.com.
254     PTR     ws-177254.land-5.com.
</ProgramListing>

</Para>

<Para>
¿ªº¯È¯ Á¸Àº ´ëºÎºÐÀÇ ºñ±ØÀ» ¾ß±â½ÃÅ°´Â ¼³Á¤ÀÌ´Ù. ÀÌ°ÍÀº IPÁÖ¼Ò¸¦ °¡Áö°í 
ÀÖÀ¸¸é hostnameÀ» Ã£´Âµ¥ »ç¿ëµÈ´Ù. ¿¹¸¦ º¸ÀÚ: IRC ¼­¹ö°¡ ÀÖ°í IRC 
Å¬¶óÀÌ¾ðÆ®·ÎºÎÅÍ Á¢¼ÓÀ» Çã¿ëÇÒ °æ¿ì¸¦ º¸ÀÚ. ³ë¸£¿þÀÌ IRC ¼­¹ö¸¦ »ç¿ëÇÏ¸ç 
³ë¸£¿þÀÌ¿Í ½ºÄ­µð³ªºñ¾Æ¹Ýµµ Å¬¶óÀÌ¾ðÆ®¿ÍÀÇ Á¢¼Ó¸¸ Çã¿ëÇÏ·Á ÇÑ´Ù. Å¬¶óÀÌ¾ðÆ® 
Á¢¼ÓÀ» ÇÒ ¶§ C ¶óÀÌºê·¯¸®°¡ Å¬¶óÀÌ¾ðÆ®ÀÇ IP ¹øÈ£¸¦ ¾Ë·ÁÁØ´Ù. Å¬¶óÀÌ¾ðÆ®ÀÇ 
IP¹øÈ£°¡ ³Ý»óÀ¸·Î ¿À´Â ÆÐÅ¶¿¡ Æ÷ÇÔµÇ¾î ÀÖ±â ¶§¹®ÀÌ´Ù. ÀÌÁ¦ gethostbyaddrÀÌ¶ó´Â 
ÇÔ¼ö¸¦ È£ÃâÇØ¼­ ÁÖ¾îÁø IP·Î ±× ÄÄÇ»ÅÍ¸¦ Ã£´Â´Ù. gethostbyaddrÀº DNS¼­¹ö¿¡ ÁúÀÇ¸¦ 
ÇÒ °ÍÀÌ¸ç DNS´Â Ã£Àº ÄÄÇ»ÅÍ ÀÌ¸§À¸·Î º¯È¯ÇÒ °ÍÀÌ´Ù. Å¬¶óÀÌ¾ðÆ®°¡ ws-177200.land-5.com¿¡ 
Á¢¼ÓÇß´Ù°í °¡Á¤ÇØ º¸ÀÚ. IRC¼­¹ö¸¦ À§ÇØ C¶óÀÌºê·¯¸®´Â IP°¡ 206.6.177.200ÀÓÀ» ¾Ë¾Æ³»°í 
ÄÄÇ»ÅÍÀÇ ÀÌ¸§À» ¾Ë¾Æ³»±â À§ÇØ <Literal remap="tt">200.177.6.206.in-addr.arpa</Literal>À» 
Ã£°Ô µÈ´Ù. DNS´Â ¿ì¼± <Literal remap="tt">arpa.</Literal>À» Ã£°ÔµÇ¸ç ±×¸®°í´Â 
<Literal remap="tt">in-addr.arpa.</Literal>, ¿ª¼øÀ¸·Î 206, 6 À» ÃßÀûÇÏ°í ¸¶Áö¸·À¸·Î 
<Literal remap="tt">177.6.206.in-addr.arpa</Literal>¸¦ LAND-5 Á¸À¸·ÎºÎÅÍ Ã£¾Æ³»°Ô µÈ´Ù. 
°Å±â¿¡¼­ ¿ì¸®´Â ÃÖÁ¾ÀûÀ¸·Î <Literal remap="tt">200.177.6.206.in-addr.arpa</Literal>¸¦ 
"<Literal remap="tt">PTR ws-177200.land-5.com</Literal>" ·¹ÄÚµå·ÎºÎÅÍ ¾ò°Ô µÈ´Ù. 
ÀÌ°ÍÀº <Literal remap="tt">206.6.177.200</Literal>Àº 
<Literal remap="tt">ws-177200.land-5.com</Literal>À» ÀÇ¹ÌÇÏ´Â °ÍÀÌ´Ù. À§ÀÇ ¼³¸íÀº 
<Literal remap="tt">prep.ai.mit.edu</Literal>¿¡¼­µµ Çß°í ¿©±â¿¡¼­´Â Çã±¸°¡ °çµé¿©Á® ÀÖ´Ù.
</Para>

<Para>
IRC ¼­¹ö ÀÌ¾ß±â·Î µ¹¾Æ¿Í¼­, IRC¼­¹ö´Â ÀÌÁ¦ ½ºÄ­µð³ªºñ¾Æ Áö¿ªÀÇ Á¢¼Ó¸¸À» 
Çã°¡ÇÑ´Ù. <Literal remap="tt">*.no</Literal>,<Literal remap="tt">*.se</Literal>, 
<Literal remap="tt">*.dk</Literal> °°Àº °ÍÀ» Çã°¡ÇÒ °ÍÀÌ°í 
<Literal remap="tt">ws-177200.land-5.com</Literal> Àº ÀûÇÕÇÏÁö ¾Ê°í Á¢¼ÓÀ» °ÅºÎÇÒ 
°ÍÀÌ´Ù.<Literal remap="tt">in-addr.arpa</Literal> Á¸À¸·ÎºÎÅÍ 
<Literal remap="tt">206.2.177.200</Literal> ¿¡ ´ëÇÑ ¿ªº¯È¯ mappingÀÌ ¾øÀ¸¸é ¼­¹ö´Â 
ÀÌ¸§µéÀ» ÀüÇô Ã£Áö ¸øÇÏ¸ç <Literal remap="tt">206.2.177.200</Literal>Àº ¸ÅÄ¡°¡ ¾ÈµÇ´Â 
<Literal remap="tt">*.no</Literal>, <Literal remap="tt">*.se</Literal> ,
<Literal remap="tt">*.dk</Literal>¿Í ºñ±³ÇÒ °ÍÀÌ´Ù.
</Para>

<Para>
È¤ÀÚ´Â ¿ªº¯È¯ mappingÀ» Ã£´Â °ÍÀÌ ´ÜÁö ¼­¹ö¿¡°Ô¸¸ ÇÊ¿äÇÑ ÀÏÀÌ°Å³ª Áß¿äÇÏÁö ¾Ê´Ù°í ÇÏ´Âµ¥, 
°áÄÚ ±×·¸Áö ¾Ê´Ù. ¸¹Àº ftp, news,IRC¿Í ½ÉÁö¾î´Â http(www)¼­¹öµµ ÀÌ¸§À» Ã£Áö ¸øÇÏ¸é 
Á¢¼ÓÇÏÁö ¾ÊÀ» °ÍÀÌ´Ù. ¿ªº¯È¯ mappingÀº »ç½Ç ÇÊ¼öÀûÀÎ °ÍÀÌ´Ù.
</Para>

</Sect2>

</Sect1>

<Sect1 id="maint">
<Title>À¯Áö</Title>

<Para>
<Emphasis remap="bf">ÀÛµ¿ÀÌ µÇ°Ô À¯ÁöÇÏ¶ó.</Emphasis>
</Para>

<Para>
namedÀÇ ±â´ÉÀÌ À¯ÁöµÇ°Ô ÇØ¾ß ÇÏ¸ç ±×°ÍÀÌ Áö¼ÓÀûÀ¸·Î ±¸µ¿µÇ°Ô ÇØ¾ß ÇÑ´Ù. ±×·²·Á¸é 
<Literal remap="tt">root.hints</Literal>¸¦ ¾÷µ¥ÀÌÆ® ÇØ¾ß ÇÑ´Ù. °¡Àå ¼Õ½¬¿î ¹æ¹ýÀº dig¸¦ 
ÀÌ¿ëÇÏ´Â °ÍÀÌ´Ù. ¸ÕÀú ¾î¶² ÀÎ¼öµµ ¾øÀÌ dig ¸¦ ±¸µ¿½ÃÅ°¸é ÀÚ½ÅÀÇ ¼­¹ö¿¡ ÇØ´çÇÏ´Â 
<Literal remap="tt">root.hints</Literal>¸¦ ¾ò°Ô µÉ °ÍÀÌ´Ù. ±×¸®°í ³ª¼­´Â 
<Literal remap="tt">dig @rootserver</Literal>·Î ³ª¿­µÈ ·çÆ®¼­¹öÁß ÇÏ³ª¿¡ ÁúÀÇ¸¦ ÇÑ´Ù. 
<Literal remap="tt">root.hints</Literal> ÆÄÀÏÀ» ³ªÅ¸³»´Â Ãâ·Â°á°ú¸¦ ÁÖ½ÃÇØ¾ß ÇÑ´Ù. 
ÆÄÀÏÀ» ÀúÀåÇÏ°í(<Literal remap="tt">dig @e.root-servers.net . ns&gt;root.hints.new</Literal>) 
<Literal remap="tt">root.hints</Literal> ÆÄÀÏÀ» ±³Ã¼ÇÏ¸é µÈ´Ù.
</Para>

<Para>
Ç×»ó Ä³½¬ÆÄÀÏÀ» ±³Ã¼ÇÏ°í ³ª¸é named¸¦ Àç±¸µ¿ ÇØ¾ß ÇÑ´Ù´Â »ç½ÇÀ» ¿°µÎÇØ µÎ±æ.
</Para>

<Para>
Al Longyear¾¾°¡ ÀÚµ¿ÀûÀ¸·Î <Literal remap="tt">root.hints</Literal>¸¦ °»½ÅÇÒ ¼ö ÀÖ´Â 
½ºÅ©¸³Æ®¸¦ Á¦°øÇØ ÁÖ¾ú´Ù. crontab¿¡ ÀúÀåÇÏ°í ÇÑ´Þ¿¡ ÇÑ¹ø¾¿ µ¹¾Æ°¡°Ô ¼³Á¤ÇÏ¸é ±×µÚ¿¡´Â 
½Å°æ¾²Áö ¾Ê¾Æµµ µÈ´Ù. ÀÌ ½ºÅ©¸³Æ®´Â ¿©·¯ºÐÀÇ ¸ÞÀÏÀÌ ÀÛµ¿ÇÏ°í mail-alias 'hostmaster'°¡ 
Á¤ÀÇµÇ¾î ÀÖ´Ù°í °¡Á¤ÇÑ´Ù. ¼öÁ¤ÇØ¼­ ÀÚ½Å¿¡°Ô ¸Â°Ô ¼³Á¤ÇØ¾ß ÇÑ´Ù.
</Para>

<Para>

<ProgramListing>
#!/bin/sh
#
# Update the nameserver cache information file once per month.
# This is run automatically by a cron entry.
#
# Original by Al Longyear
# Updated for BIND 8 by Nicolai Langfeldt
# Miscelanious error-conditions reported by David A. Ranch
# Ping test suggested by Martin Foster
# named up-test suggested by Erik Bryer.
#
(
 echo "To: hostmaster &#60;hostmaster&#62;"
 echo "From: system &#60;root&#62;"

 # Is named up? Check the status of named.
 case `ndc status 2&#62;&#38;1` in
    *'cannot connect to command channel'*)
        echo "named is DOWN. root.hints was NOT updated"
        echo
        exit 0
        ;;
 esac

 PATH=/sbin:/usr/sbin:/bin:/usr/bin:
 export PATH
 # NOTE: /var/named must be writable only by trusted users or this script 
 # will cause root compromise/denial of service opportunities.
 cd /var/named 2&#62;/dev/null || {
    echo "Subject: Cannot cd to /var/named, error $?"
    echo
    echo "The subject says it all"
    exit 1
 }

 # Are we online?  Ping a server at your ISP
 case `ping -qnc 1 some.machine.net 2&#62;&#38;1` in
   *'100% packet loss'*)
        echo "Subject: root.hints NOT updated.  The network is DOWN."
	echo
	echo "The subject says it all"
	exit 1
	;;
 esac

 dig @e.root-servers.net . ns &#62;root.hints.new 2&#62; errors

 case `cat root.hints.new` in
   *NOERROR*)
	# It worked
	:;;
   *)
	echo "Subject: The root.hints file update has FAILED."
        echo
   	echo "The root.hints update has failed"
	echo "This is the dig output reported:"
   	echo
   	cat root.hints.new errors
        exit 1
	;;
 esac

 echo "Subject: The root.hints file has been updated"
 echo
 echo "The root.hints file has been updated to contain the following   
information:"
 echo
 cat root.hints.new

 chown root.root root.hints.new
 chmod 444 root.hints.new
 rm -f root.hints.old errors
 mv root.hints root.hints.old
 mv root.hints.new root.hints
 ndc restart
 echo
 echo "The nameserver has been restarted to ensure that the update is complete."
 echo "The previous root.hints file is now called   
/var/named/root.hints.old."
) 2&#62;&#38;1 | /usr/lib/sendmail -t
exit 0
</ProgramListing>

</Para>

<Para>
È¤ÀÚµéÀº <Literal remap="tt">root.hints</Literal> ÆÄÀÏÀ» ÀÎÅÍ´ÐÀÇ ftp·ÎºÎÅÍ °¡Á®¿À´Â °ÍÀÌ 
À¯¿ëÇÏ´Ù°í ÇÑ´Ù. ftp¸¦ »ç¿ëÇÏÁö ¸»°í À§ÀÇ ¹æ¹ýÀ¸·Î <Literal remap="tt">root.hints</Literal>
 ¸¦ ¾÷µ¥ÀÌÆ® ÇÏ±â¸¦. À§ÀÇ ¹æ¹ýÀÌ ´õ net»ó¿¡¼­, ±×¸®°í internic ¿¡µµ ÁÁÀº °ÍÀÌ´Ù.
</Para>

</Sect1>

<Sect1 id="bind8">
<Title>¹öÁ¯ 4¿¡¼­ 8·ÎÀÇ º¯È¯</Title>

<Para>
ÀÌ ºÎºÐÀº David E. Smith (dave@bureau42.ml.org)¾¾°¡ ¾´ 'using bind 8'¿¡ ÀÖ´ø ÀýÀÌ´Ù. 
»õ·ÎÀº ÀýÀÇ ÀÌ¸§¿¡ ¸Âµµ·Ï ¾à°£ ÆíÁýÀ» °¡Çß´Ù.
</Para>

<Para>
º°·Î ÇØ¾ßÇÒ °ÍÀº ¾ø´Ù. named.boot´ë½Å named.conf¸¦ »ç¿ëÇÏ´Â Á¡ ¸»°í´Â ¸ðµç °ÍÀÌ µ¿ÀÏÇÏ´Ù. 
bind8Àº ÆÞ ½ºÅ©¸³Æ®·Î ¿¾ Çü½ÄÀÇ ÆÄÀÏµéÀ» »õ·Î¿î Çü½Ä¿¡ ¸Â°Ô º¯È¯ÇÑ´Ù. 
´ÙÀ½Àº ¿¾Çü½ÄÀ¸·Î µÈ Ä³½Ã Àü¿ë ³×ÀÓ ¼­¹öÀÇ ¿¹ÀÌ´Ù.
</Para>

<Para>

<ProgramListing>
directory /var/named
cache	.	                                root.hints
primary	0.0.127.IN-ADDR.ARPA                    127.0.0.zone
primary	localhost				localhost.zone	 	
</ProgramListing>

</Para>

<Para>
¾Æ·¡ÀÇ ¸í·ÉÀ» bind8/src/bin/named µð·ºÅä¸® ¾È¿¡¼­ ½ÇÇàÇÏ¶ó
(<Emphasis>ÀÌ°ÍÀº ¼Ò½º·Î ÄÄÆÄÀÏÇÏ´Â ¹èÆ÷º»ÀÇ °æ¿ìÀÌ¸ç ¹ÙÀÌ³Ê¸® ÆÐÅ°Áö¸¦ »ç¿ëÇß´Ù¸é 
½ºÅ©¸³Æ®°¡ ¾îµò°¡¿¡ ÀÖÀ» °ÍÀÌ´Ù. ¾îµð¿¡ ÀÖ´ÂÁö´Â È®½ÅÇÒ ¼ö ¾ø´Ù</Emphasis>)
</Para>

<Para>

<ProgramListing>
./named-bootconf.pl &#60; named.boot &#62; named.conf
</ProgramListing>

</Para>

<Para>
ÀÌÁ¦ named.conf°¡ ¸¸µé¾î Á³´Ù.
</Para>

<Para>

<ProgramListing>
// generated by named-bootconf.pl

options {
	directory "/var/named";
};

zone "." {
	type hint;
	file "root.hints";
};

zone "0.0.127.IN-ADDR.ARPA" {
	type master;
	file "127.0.0.zone";
};

zone "localhost" {
	type master;
	file "localhost.zone";
};
</ProgramListing>

</Para>

<Para>
<Literal remap="tt">named.boot</Literal>¾È¿¡ ÀÖ´ø ³»¿ëµéÀº ±×´ë·Î ÀÛµ¿ÇÏÁö¸¸ 
BIND-8ÀÇ »õ·Î¿î ±â´ÉÀÌ³ª ¼³Á¤Àº ÀÛµ¿ÇÏÁö ¾Ê´Â´Ù. ¿©±â¿¡ ºñ½ÁÇÏÁö¸¸ ´õ È¿°úÀûÀÎ 
º¸´Ù Á¤±³ÇÑ <Literal remap="tt">named.conf</Literal>°¡ ÀÖ´Ù
</Para>

<Para>

<ProgramListing>
// This is a configuration file for named (from BIND 8.1 or later).
// It would normally be installed as /etc/named.conf.
// The only change made from the `stock' named.conf (aside from this
// comment :) is that the directory line was uncommented, since I
// already had the zone files in /var/named.

options {
	directory "/var/named";
	datasize 20M;
};

zone "localhost" IN {
	type master;
	file "localhost.zone";
};

zone "0.0.127.in-addr.arpa" IN {
	type master;
	file "127.0.0.zone";
};

zone "." IN {
	type hint;
	file "root.hints";
};
</ProgramListing>

</Para>

<Para>
BIND 8 ¹èÆ÷º»ÀÇ bind8/src/bin/named/test¿¡¼­ Å×½ºÆ® ÇÒ ¼ö ÀÖÀ¸¸ç Á¸ ÆÄÀÏÀ» º¹»çÇÒ 
¼ö ÀÖ´Ù. »ç¶÷µéÀº ÀÌ·¯ÇÑ ½ÄÀ¸·Î ÀÔ·ÂÇØ¼­ Áï½Ã »ç¿ëÇÏ°ï ÇÑ´Ù.
</Para>

<Para>
Á¸ ÆÄÀÏ°ú <Literal remap="tt">root.hints</Literal> ÆÄÀÏÀº ¼­·Î Çü½ÄÀÌ µ¿ÀÏÇÏ¸ç 
±×µéÀ» ¾÷µ¥ÀÌÆ®ÇÏ´Â ¸í·É ¶ÇÇÑ µ¿ÀÏÇÏ´Ù.
</Para>

</Sect1>

<Sect1 id="qanda">
<Title>Áú¹®°ú ´äº¯</Title>

<Para>
¼ÖÂïÈ÷ ÀÌÇØ°¡ ¾È°¡´Â ºÎºÐÀÌ ¸¹Àº ºÎºÐÀÔ´Ï´Ù. ¿ø¹®µµ °°ÀÌ »ìÆìºÁ ÁÖ¼¼¿ä.

¿ì¼± ³ª¿¡°Ô ¸ÞÀÏ º¸³»±â Àü¿¡ ÀÌºÎºÐÀ» ÀÐ±â¸¦ ¹Ù¶õ´Ù.
</Para>

<Para>

<OrderedList>
<ListItem>
<Para>
³» ³×ÀÓ¼­¹ö°¡ named.boot¸¦ Ã£°í ÀÖ¾î¿ä.


<Para>
ÀÌ HOWTO¹®¼­¸¦ Á¦´ë·Î ÀÐÁö ¾ÊÀº °æ¿ìÀÌ´Ù. ÀÌÀü ¹öÁ¯ÀÎ BIND 4ÀÇ HOWTO¸¦ º¸·Á¸é ¾Æ·¡¸¦ 
Âü°íÇÏ¶ó. <ULink URL="http://www.math.uio.no/~janl/DNS/">http://www.math.uio.no/~janl/DNS/</ULink>

</Para>
</ListItem>
<ListItem>
<Para>
¹æÈ­º® ¾È¿¡ ÀÖ´Â DNS¸¦ »ç¿ëÇÏ´Â ¹æ¹ýÀº?


<Para>
A hint: <Literal remap="tt">forward only;</Literal>forward ¹Û¿¡ ¾ø´Ù.;. ¶ÇÇÑ

</Para>

<Para>

<ProgramListing>
  query-source port 53;
  
</ProgramListing>

</Para>

<Para>
<Literal remap="tt">named.conf</Literal>ÀÇ "option" ºÎºÐ¾È¿¡ ³ÖÀ¸¸é µÈ´Ù. 
caching ºÎºÐ¿¡ ±â¼úÇß¾ú´Ù.

</Para>
</ListItem>
<ListItem>
<Para>
¿¹¸¦µé¾î <Literal remap="tt">www.busy.site</Literal>°°ÀÌ ¾î¶»°Ô ÇØ¾ß ºÎÇÏ¸¦ 
È¿°úÀûÀÌ°Å³ª ºñ½ÁÇÏ°Ô À¯ÁöÇÏ¸é¼­ DNS¸¦ µ¹¸±¼ö ÀÖ´ÂÁö?


<Para>
<Literal remap="tt">www.busy.site</Literal>¿¡ ¸Â´Â <Emphasis remap="bf">A</Emphasis> 
·¹ÄÚµå¸¦ »ç¿ëÇÏ°í BIND 4.9.3 ÀÌ³ª ±× ÀÌÈÄ ¹öÁ¯À» »ç¿ëÇÏ¶ó. ±×·¯¸é BIND °¡ ¾Ë¾Æ¼­ 
µ¹¸é¼­ ÁúÀÇ¸¦ ´äÇØÁÙ °ÍÀÌ¸ç ÀÌÀü ¹öÁ¯¿¡¼­´Â ÀÛµ¿ÇÏÁö ¾ÊÀ» °ÍÀÌ´Ù.

</Para>
</ListItem>
<ListItem>
<Para>
ÀÎÆ®¶ó³Ý¿¡(¿ÜºÎ¿Í ´ÜÀýµÈ) DNS ¸¦ ¼³Á¤ÇÏ°íÀÚ ÇÕ´Ï´Ù. ¹» ÇØ¾ß ÇÏ´ÂÁö?


<Para>
<Literal remap="tt">root.hints</Literal> ÆÄÀÏÀ» Á¦¿ÜÇÏ°í zoneÆÄÀÏÀ» ¸¸µé¾î¶ó. 
ÀÌ°ÍÀº Ç×»ó »õ hints ÆÄÀÏÀ» °»½ÅÇÒ ÇÊ¿ä°¡ ¾ø´Ù´Â ÀÌ¾ß±âÀÌ´Ù.

</Para>
</ListItem>
<ListItem>
<Para>
2Â÷(slave) ³×ÀÓ¼­¹ö¸¦ ¾î¶»°Ô ¼³Á¤ÇÕ´Ï±î?


<Para>
¸¸¾à¿¡ 1Â÷ ³×ÀÓ¼­¹ö(primary/master)°¡ 127.0.0.1 ÀÌ¸é ´ç½ÅÀÇ 2Â÷ ³×ÀÓ¼­¹öÀÇ 
named.conf¿¡ ´ÙÀ½À» Ãß°¡ÇÏ¸é µÈ´Ù.

</Para>

<Para>

<ProgramListing>
  zone "linux.bogus" {
	type slave;
	file "sz/linux.bogus";
	masters { 127.0.0.1; };
  };
  
</ProgramListing>

</Para>

<Para>
<Literal remap="tt">masters</Literal> ºÎºÐ¿¡ ';' (semicolon)À¸·Î ±¸ºÐÇØ¼­ ¿©·¯ 
´ëÃ¼ master¸¦ ³ÖÀ¸¸é ±×°Íµµ °°ÀÌ º¹»ç°¡ µÈ´Ù.

</Para>
</ListItem>
<ListItem>
<Para>
³Ý»óÀÇ Á¢¼ÓÀ» ²÷°í ³ª¼­µµ BIND°¡ ±¸µ¿µÇ°Ô ÇÏ°í ½Í´Ù¸é.


<Para>
4°¡Áö ¹æ¹ýÀÌ ÀÖ´Ù.

</Para>

<Para>

<ItemizedList>
<ListItem>

<Para>
BIND 8À» Æ¯º°È­ÇÏ±â, Adam L Rice°¡ ³»°Ô ´ÙÀÌ¾ó¾÷ ÄÄÇ»ÅÍ¿¡¼­ DNS¸¦ ¹®Á¦¾øÀÌ 
»ç¿ëÇÏ´Â ¹æ¹ýÀ» email·Î ¾Ë·Á¿Ô´Ù.


<Screen>
³ª´Â »õ BIND ¹öÁ¯¿¡¼­ [&lt;em/shuffeling files, -ed/] ÀÌ ´õÀÌ»ó ÇÊ¿äÇÏÁö ¾Ê´Ù´Â 
°ÍÀ» ¾Ë¾Ò´Ù. "forwarders"¸¦ Æ÷ÇÔÇÑ "forward" ·Î ¾î¶»°Ô ÀÌ°ÍÀ» ÅëÁ¦ÇÏ´ÂÁö¸¦ ¾Ë¾Ò´Ù. 
±âº»¼³Á¤Àº "forward first"·Î ÀÌ°ÍÀº °¢°¢ÀÇ forwardersµé¿¡°Ô ÁúÀÇ¸¦ ÇÏ°í, ÀÌ°ÍÀÌ 
½ÇÆÐÇÏ¸é ÀÏ¹ÝÀûÀ¸·Î ÀÚ½ÅÀ» Ã¶ÀúÇÏ°Ô Á¶»çÇÑ´Ù. ÀÌ°ÍÀº gethostbyname()¿Í À¯»çÇÑ 
°á°ú¸¦ ÁÖ¸ç ÀÏ¹ÝÀûÀ¸·Î ¸µÅ©°¡ ¾ÈµÉ ¶§ ¿À·£ ½Ã°£À» ÇãºñÇÑ´Ù.±×·¯³ª "forward only" °¡ 
¼³Á¤µÇ¸é, forwarders·Î ºÎÅÍ ÀÀ´äÀÌ ¾øÀ» °æ¿ì ¹Ù·Î Æ÷±â¸¦ ÇÏ°í gethostbyname() ·Î 
³Ñ¾î°£´Ù. °í·Î /etcÆÄÀÏÀ» ¼Ø¾¾ÀÖ°Ô ¼³Á¤ÇÒ ÇÊ¿äµµ ¾ø°í ¼­¹ö¸¦ Àç½ÃÀÛÇÒ ÇÊ¿äµµ ¾ø´Ù.

³» °æ¿ì¿¡´Â ´ÜÁö ¸îÁÙ¸¸À» Ãß°¡Çß´Ù.

forward only;
forwarders { 193.133.58.5; };

³» named.conf file¿¡ ¼³Á¤Çß°í Àß ÀÛµ¿µÈ´Ù. ÀÌ°ÍÀÇ ´ÜÁ¡Àº ´ÜÁö dump cache »óÈ²À» 
º¸´Â DNS ÇÁ·Î±×·¥ÀÇ Á¤È®µµ¸¦ ³·Ãá´Ù´Â °ÍÀÌ´Ù.Á»´õ È®Àå¼ºÀ» °®±â À§ÇØ, ÀÌ·¯ÇÑ dump 
cache ÇÁ·Î±×·¥À» µ¹¸®°í ½ÍÁö¸¸ ¸®´ª½º¿¡¼­ ±×´ÙÁö ÇÊ¿äÇÑ ÇÁ·Î±×·¥Àº ¾Æ´Ñ °Í °°´Ù.
</Screen>



</Para>
</ListItem>
<ListItem>
<Para>
Ian Clark¿¡°Ô¼­µµ ÆíÁö¸¦ ¹Þ¾Ò´Ù.<email>ic@deakin.edu.au</email> ±×´Â ±×°¡ ÇÑ ¹æ½ÄÀ» ¼³¸íÇÑ´Ù.

<Screen>
³ª´Â named¸¦ 'Masquerading'»óÅÂ¿¡¼­ ±¸µ¿ÇÑ´Ù.³ª´Â 2°³ÀÇ root.hints fileÀÌ ÀÖ°í 
ÇÏ³ª´Â root.hints.real·Î ¸í¸íÇß´Ù. ÀÌ°ÍÀº ½ÇÁ¦  root server ÀÌ¸§À» °¡Áö°í ÀÖ°í 
±×¸®°í root.hints.fake ¶ó ºÒ¸®´Â ´Ù¸¥ ÆÄÀÏÀº...

----
; root.hints.fake
; this file contains no information
----

³»°¡ off¶óÀÎÀÏ¶§ ³ª´Â root.hints.fake file ¸¦ root.hints ·Î º¹»çÇÏ°í named¸¦ 
±¸µ¿ ½ÃÅ²´Ù..

³»°¡ onlineÀÏ¶§ root.hints.real À» root.hints ·Î º¹»çÇÏ°í named¸¦ Àç½ÃÀÛÇÑ´Ù.


ÀÌ°ÍÀº ip-down & ip-up ÀÏ °æ¿ì ÇàÇØÁø´Ù.

³»°¡ Ã³À½À¸·Î off line ¿¡¼­ ÁúÀÇ¸¦ ÇßÀ» ¶§ Á¤¹ÐÇÏ°Ô ÀÛµ¿ÇÏÁö ¾Ê¾ÒÀ¸¸ç ¾Æ·¡¿Í °°Àº 
¸Þ½ÃÁö¸¸ Ãâ·Âç´.

Jan 28 20:10:11 hazchem named[10147]: No root nameserver for class IN

which I can live with.
         
Àß ÀÛµ¿ÇÏ´Â °Í °°´Ù. ¿ÜºÎ µµ¸ÞÀÎ¿¡ ´ëÇÑ Áö¿¬½Ã°£ ¾øÀÌ ·ÎÄÃ ÄÄÇ»ÅÍ¿¡¼­ ³×ÀÓ¼­¹ö¸¦ 
¿î¿µÇÒ ¼ö ÀÖ¾úÀ¸¸ç ¿ÜºÎ µµ¸ÞÀÎÀÌ ÀÛµ¿ÇÏ´ÂÁö ÁúÀÇ¸¦ º¸³¾ ¼ö ÀÖ¾ú´Ù.

</Screen>



<Para>
Peter Denison Àº Ian ÀÌ ÃæºÐÄ¡ ¸øÇÏ´Ù°í »ý°¢ÇÏ°í ±ÛÀ» º¸³Â´Ù.

</Para>

<Para>

<Screen>
¿¬°áµÇ¾úÀ»¶§  ) Ä³½¬µÇ¾îÁø(Áö¿ª³×Æ®¿öÅ© Æ÷ÇÔ) ¸ñ·ÏÀº Áï½Ã ¼­ºñ½º
                Ä³½¬µÇ¾îÁöÁö ¾ÊÀº ºÎºÐÀº ISPÀÇ ³×ÀÓ¼­¹ö·Î Æ÷¿öµùµÈ´Ù.
¿¬°áµÇÁö¾ÊÀ»¶§) Áö¿ª³×Æ®¿öÅ© ÁúÀÇ´Â Áï½Ã ÀÌ·ç¾îÁü
                ´Ù¸¥ ÁúÀÇ´Â Áï½Ã ½ÇÆÐÇÔ

·çÆ® Ä³½¬ÆÄÀÏ°ú Æ÷¿öµù ÁúÀÇÀÇ º¯°æÁ¶ÇÕÀº Àß ÀÛµ¿ÇÏÁö ¾Ê´Â´Ù.

±×·¡¼­ ³ª´Â ³»ºÎLUGµé°ú Åä·ÐÀ» ÇØ¼­ 2°³ÀÇ nameds¸¦ ´ÙÀ½°ú °°ÀÌ ¸¸µé¾ú´Ù:


named-online:   forwards to ISPs nameserver
                master for localnet zone
                master for localnet reverse zone (1.168.192.in-addr.arpa)
                master for 0.0.127.in-addr.arpa
                listens on port 60053

named-offline:  no forwarding
                "fake" root cache file
                slave for 3 local zones (master is 127.0.0.1:60053)
                listens on port 61053

±×¸®°í ÀÌ°ÍÀ» Æ÷Æ® Æ÷¿öµù°ú °áÇÕÇØ¼­ off¶óÀÎÀÏ¶§ port 53 ºÎÅÍ 61053 ±îÁö º¸³»¸ç 
¿Â¶óÀÎÀÏ °æ¿ì´Â port 60053 À» »ç¿ëÇß´Ù. (³ª´Â 2.3.18´ëÀÇ »õ netfilter¸¦ »ç¿ëÇßÁö¸¸ 
¿¾³¯ (ipchains) ¹æ½ÄÀÌ ÀÛµ¿µÇ¾ú´Ù.)

±¸¹öÁ¯¿¡¼­´Â ÀÛµ¿ÇÏÁö ¾Ê°í BIND 8.2¿¡´Â ¾à°£ÀÇ ¹ö±×°¡ ÀÖ´Ù´Â °ÍÀ» ¸í½ÉÇØ¶ó.
½½·¹ÀÌºê¿Í ¸¶½ºÅÍ°¡ ºñ·Ï Æ÷Æ®°¡ ´Ù¸¥ °æ¿ì¶ó ÇØµµ °°Àº IP¸¦ ¾²Áö ¸»¾Æ¾ß ÇÑ´Ù. ÀÌ°ÍÀº 
trial ¹öÁ¯ÀÌ¸ç °÷ ³ª¾ÆÁú °ÍÀÌ´Ù.
</Screen>

</Para>
</ListItem>
<ListItem>

<Para>
Karl-Max Wanger·ÎºÎÅÍ BIND°¡ ¿ÀÇÁ¶óÀÎ¿¡¼­ NFS¿Í port mapper¿Í »óÈ£ÀÛ¿ëÇÏ´Â ¹ý¿¡ ´ëÇÑ Á¤º¸¸¦ ¹Þ¾Ò´Ù:


<Screen>
³ª´Â ¸ðµ©À¸·Î ³» nameserver¸¦ µ¹¸®°í ³×ÀÓ¼­¹ö´Â cache ³×ÀÓ¼­¹öÀÇ ±â´É¸¸À» ÇÑ´Ù.
ÀÎÁõÀÌ³ª ¸ðµç root.cache file¿¡ ´ëÇÑ ÀçÁúÀÇ´Â ¾ø´Ù. SlackwareÃ³·³ nfsd ³ª mountd
ÀÌÀü¿¡ ±¸µ¿µÈ´Ù.

³» ÄÄÇ»ÅÍÁß ÇÏ³ª·Î (a Libretto 30 notebook) ³» local LANÀ» ÅëÇØ ´Ù¸¥ ½Ã½ºÅÛ¿¡
¸¶¿îÆ®¸¦ ÇÒ¼ö ÀÖ´Âµ¥ ´ëºÎºÐÀº ±×·¸°Ô µÇÁö ¾Ê´Â ¹®Á¦¸¦ °¡Áö°í ÀÖ´Ù. Á÷·ÄÆ÷Æ®¿¡¼­
ÀÛµ¿ÇÏ´Â PLIP, a PCMCIA ethernet card ³ª PPP µîÀ» ¹«½ÃÇØµµ °°Àº °á°ú°¡ ³ª¿Â´Ù.

°è¼Ó ÃßÃøÇÏ°í ½ÇÇèÇÏ¸é¼­ ³ª´Â ¹«ÀÇ¹ÌÇÑ nfsd¿Í mountd µî·Ï°úÁ¤ÀÌ portmapper°¡
½ÃÀÛÆÄÀÏ¿¡¼­ ½ÇÇàµÉ ¶§ °è¼Ó ÁøÇàµÈ´Ù´Â °ÍÀ» ¾Ë¾Ò´Ù.(ÀÌ·¯ÇÑ daemons µéÀ» ÀÇ·ÊÈ÷
ºÎÆ®ºÎºÐ¿¡ ³Ö¾ú´Ù.) named ¸¦ nfsd ¿Í mountd ÀÌÈÄ¿¡ ¼öÇàÇÏ¸é ÀÌ·¯ÇÑ ¹®Á¦´Â »ç¶óÁø´Ù.

ÀÌ·¯ÇÑ boot sequence¸¦ ¼öÁ¤ÇÏ´Âµ¥ Æ¯º°ÇÑ ºÒÀÌÀÍÀº ¾ø´Ù.ÀÌ·¯ÇÑ ¹æ½ÄÀ» ±ÇÀ¯ÇØ¼­
¹®Á¦Á¡À» ¹æÁöÇßÀ¸¸é ÇÑ´Ù.

</Screen>


</Para>
</ListItem>
<ListItem>

<Para>
¸¶Áö¸·À¸·Î, ÀÌ ºÎºÐ¿¡ °üÇÑ HOWTO Á¤º¸ÀÌ´Ù. 
<ULink URL="http://www.acmebw.com/askmrdns/#linux-dialup">Ask Mr. DNS at</ULink>¿¡¼­ 
Ã£¾Æº¸±æ. BIND 4 ¿¡ ´ëÇÑ Á¤º¸ÀÌÁö¸¸ BIND 8¿¡µµ ¸¹ÀÌ Àû¿ëµÈ´Ù°í ÀÌ¾ß±â ÇÑ´Ù.


</Para>
</ListItem>

</ItemizedList>

</Para>
</ListItem>
<ListItem>
<Para>
Ä³½¬ Àü¿ë ³×ÀÓ ¼­¹ö´Â ±× Ä³½¬ Á¤º¸¸¦ ¾îµð¿¡ ÀúÀåÇÏ³ª? Ä³½¬ Å©±â¸¦ Á¦¾îÇÒ¼ö ÀÖ´Â ¹æ¹ýÀº ¾ø´Â°¡?


<Para>
Ä³½ÃµÈ Á¤º¸´Â ¸ðµÎ ¸Þ¸ð¸®¿¡ ÀúÀåµÈ´Ù. µð½ºÅ©¿¡´Â ±â·ÏµÇÁö ¾Ê´Â´Ù. named¸¦ Á×ÀÏ ¶§¸¶´Ù 
Ä³½Ã´Â »ç¶óÁø´Ù. Ä³½Ã Á¤º¸´Â ¾î¶² ¹æ¹ýÀ¸·Îµç Á¦¾îÇÒ ¼ö ¾ø´Ù. named´Â ¾î¶² °£´ÜÇÑ ±ÔÄ¢¿¡ µû¶ó 
Ä³½Ã¸¦ ´Ù·ç´Âµ¥ ´ÙÀ½°ú °°´Ù. ¾î¶² ¸ñÀûÀ¸·Îµç Ä³½Ã Á¤º¸³ª Ä³½Ã Å©±â¸¦ Á¦¾îÇÒ ¹æ¹ýÀº ¾ø´Ù. ±×·¯°í 
½Í´Ù¸é named¸¦ ÇØÅ·ÇØ¼­ ¼öÁ¤ÇÏ¸é µÈ´Ù. ±×·¯³ª ±ÇÇÏÁö´Â ¾Ê´Â´Ù.
</Para>
</ListItem>
<ListItem>
<Para>
named°¡ Àç½ÃÀÛµÇ´Â µ¿¾ÈÀº Ä³½Ã¸¦ ÀúÀåÇÏ´Â°¡? ÀúÀåÇÏµµ·Ï ÇÒ ¼ö ÀÖ´Â°¡?


<Para>
¾ø´Ù. named´Â ¸ØÃâ ¶§ Ä³½Ã¸¦ ÀúÀåÇÏÁö ¾Ê´Â´Ù. Áï, named°¡ ¸ØÃß¾ú´Ù°¡ ´Ù½Ã ½ÃÀÛÇÒ ¶§¸¶´Ù 
Ä³½Ã´Â »õ·Î ¸¸µé¾î Áø´Ù. named·Î ÇÏ¿©±Ý Ä³½Ã¸¦ ÆÄÀÏ·Î ÀúÀåÇÏ°Ô ÇÒ ¼ö´Â ¾ø´Ù. ±×·¯°í ½Í´Ù¸é 
named¸¦ ÇØÅ·ÇØ¼­ ¼öÁ¤ÇÏ¸é µÈ´Ù. ±×·¯³ª ±ÇÇÏÁö´Â ¾Ê´Â´Ù.

</Para>
</ListItem>
<ListItem>
<Para>
¾î¶»°Ô µµ¸ÞÀÎÀ» ¾ò¾î¾ß ÇÏ°í, ¿¹¸¦µé¾î <Literal remap="tt">linux-rules.net</Literal>°°Àº 
µµ¸ÞÀÎÀ» ¾î¶»°Ô ±¸ÃàÇØ¾ß ÇÏ¸ç, ¾î¶»°Ô ÇÏ¸é ³ª¿¡°Ô ÀûÇÕÇÑ µµ¸ÞÀÎÀ» ÇÒ´çÇÒ ¼ö ÀÖ´Â°¡?


<Para>
¼­ºñ½º °ø±Þ¾÷Ã¼¿¡ ¿¬¶ôÀ» ÇØ¶ó. ÀÌ·¯ÇÑ ºÎºÐµéÀ» µµ¿ÍÁÙ °ÍÀÌ´Ù.´ëºÎºÐÀº µµ¸ÞÀÎÀ» ¾ò±â À§ÇØ 
µ·À» ÁöºÒÇÑ´Ù´Â »ç½ÇÀ» ¸í½ÉÇØ¶ó.


</Para>
</ListItem>
<ListItem>
<Para>
DNS serverÀÇ º¸¾ÈÀ» ³ôÈ÷°í DNS¸¦ ºÐ¸®ÇÏ´Â ¹æ¹ýÀº?


<Para>
µÑ´Ù Áøº¸ÇÑ ÁÖÁ¦ÀÌ´Ù. µÑ´Ù 
<ULink URL="http://www.etherboy.com/dns/chrootdns.html">http://www.etherboy.com/dns/chrootdns.html</ULink> ¿¡ ±â¼ú µÇ¾î ÀÖ´Ù. 
¿©±â¼­´Â ´õÀÌ»ó ¼³¸íÇÏÁö ¾Ê´Â´Ù.


</Para>
</ListItem>

</OrderedList>

</Para>

</Sect1>

<Sect1 id="bigger">
<Title>DNS °ü¸®ÀÚ·Î¼­ ´õ ¸¹Àº ½Ã°£À» ¼ÒºñÇÏ·Á¸é</Title>

<Para>
<Emphasis remap="bf">¹®¼­¿Í Åøµé</Emphasis>
</Para>

<Para>
¿Â¶óÀÎ »ó°ú ÃâÆÇµî ¹®¼­µéÀÌ ¿©·µÀÖ´Ù. ÀÌ·¯ÇÑ ¹®¼­µéÀ» ÀÐ´Â °ÍÀº ´õ ¸¹Àº ½Ã°£ÀÌ µç´Ù. 
Que (ISDN 0-7897-2273-9)¿¡¼­ ÃâÆÇµÈ <Emphasis>The Concise Guide to DNS and BIND</Emphasis> 
(by Nicolai Langfeldt)°¡ ÀÖ´Ù. ÀÌ Ã¥Àº HOWTO¿Í ºñ½ÁÇÏÁö¸¸ ´õ ¸¹°í ÀÚ¼¼ÇÑ ³»¿ëÀ» ±â¼úÇØ ³õ¾Ò´Ù. 
±×·¯³ª ÀÏ¹ÝÀûÀ¸·Î´Â C. Liu and P. Albitz°¡ ¾´ O'Reilly &amp; Associates (ISBN 0-937175-82-X)ÀÇ 
<Emphasis>DNS and BIND</Emphasis> °¡ ÀÖ´Ù. ÀÌ°Í ¿ª½Ã ¸Å¿ì ÁÁ´Ù. 3ÆÇ±îÁö ³ª¿Ô´Ù. BIND 4¸¸Å­ÀÌ³ª 
BIND 8À» ¸¹ÀÌ ¼³¸íÇØ ³õ¾Ò´Ù. Craig Hunt°¡ ¾´ O'Reilly (ISBN 0-937175-82-X)»çÀÇ 
<Emphasis>TCP/IP Network Administration</Emphasis>ÀÇ DNS ºÎºÐµµ ÁÁ´Ù. Robert M. PirsigÀÇ 
<Emphasis>Zen and the Art of Motorcycle Maintenance</Emphasis> ¿ª½Ã ÈÇ¸¢ÇÏ´Ù(ISBN 0688052304).
</Para>

<Para>
ÀÎÅÍ³Ý¿¡¼­´Â <ULink URL="http://www.dns.net/dnsrd/">http://www.dns.net/dnsrd/</ULink>
,  <ULink URL="http://www.isc.org/bind.html">http://www.isc.org/bind.html</ULink>¿¡¼­ °ü·Ã ³»¿ëÀ» Ã£À» ¼ö ÀÖ´Ù. 
FAQ, ·¹ÆÛ·±½º ¸Å´º¾ó(BOG; Bind Operations Guide), ±â»ç, ÇÁ·ÎÅäÄÝ Á¤ÀÇ, DNS ÇØÅ· (ÀüºÎ´Â ¾Æ´ÏÁö¸¸, 
ÀÌ ¹®¼­¿Í rfcs ´ëºÎºÐÀÌ bind ¹èÆ÷º»¿¡ Æ÷ÇÔµÇ¾î ÀÖ´Ù.) ÇÊÀÚ´Â ÀÌµé ´ëºÎºÐÀ» ÀÐÁö º¸Áö ¾Ê¾Ò´Ù. 
¾îÂ¶µç ÇÊÀÚ´Â Àü¹®ÀûÀ¸·Î DNS¸¦ °ü¸®ÇÏ´Â °ü¸®ÀÚ´Â ¾Æ´Ï´Ù. ¹Ý¸é Arnt GulbrandsenÀº BOG¸¦ ÀÐ¾ú°í 
±× »ç½Ç¿¡ È²È¦ÇØ ÇÑ´Ù. :-) <ULink URL="news:comp.protocols.tcp-ip.domains">news:comp.protocols.tcp-ip.domains</ULink>°¡ 
DNS °ü·Ã ´º½º±×·ìÀÌ´Ù. ¶ÇÇÑ, DNS¿¡ °üÇÑ RFC°¡ ¸¹ÀÌ ÀÖ´Ù. ¾Æ¸¶µµ °¡Àå Áß¿äÇÑ °ÍÀº ÀÌ°Í µéÀÏ °ÍÀÌ´Ù.
</Para>

<Para>
<VariableList>

<VarListEntry>
<Term>RFC 2671</Term>
<ListItem>
<Para>
P. Vixie, <Emphasis>Extension Mechanisms for DNS (EDNS0)</Emphasis>
August 1999.  
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 2317</Term>
<ListItem>
<Para>
, BCP 20, H. Eidnes et. al. <Emphasis>Classless IN-ADDR.ARPA
delegation</Emphasis>, March 1998. This is about CIDR, or classless subnet
reverse lookups.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 2308</Term>
<ListItem>
<Para>
, M. Andrews, <Emphasis>Negative Caching of DNS Queries</Emphasis>,
March 1998.  About negative caching and the $TTL zone file
directive.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 2219</Term>
<ListItem>
<Para>
, BCP 17, M. Hamilton and R. Wright, <Emphasis>Use of DNS
Aliases for Network Services</Emphasis>, October 1997.  About
CNAME usage.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 2182</Term>
<ListItem>
<Para>
, BCP 16, R. Elz et. al., <Emphasis>Selection and Operation
of Secondary DNS Servers</Emphasis>, July 1997.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 2052</Term>
<ListItem>
<Para>
A. Gulbrandsen, P. Vixie, <Emphasis>A DNS RR for specifying
the location of services (DNS SRV)</Emphasis>, October 1996
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1918</Term>
<ListItem>
<Para>
Y. Rekhter, R. Moskowitz, D. Karrenberg, G. de Groot,
E. Lear, <Emphasis>Address Allocation for Private Internets</Emphasis>, 02/29/1996.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1912</Term>
<ListItem>
<Para>
D. Barr, <Emphasis>Common DNS Operational and Configuration
Errors</Emphasis>, 02/28/1996.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1912 Errors</Term>
<ListItem>
<Para>
B. Barr <Emphasis>Errors in RFC 1912</Emphasis>, this is available
at <ULink
URL="http://www.cis.ohio-state.edu/~barr/rfc1912-errors.html"
>http://www.cis.ohio-state.edu/~barr/rfc1912-errors.html</ULink
>
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1713</Term>
<ListItem>
<Para>
A. Romao, <Emphasis>Tools for DNS debugging</Emphasis>, 11/03/1994.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1712</Term>
<ListItem>
<Para>
C. Farrell, M. Schulze, S. Pleitner, D. Baldoni,
<Emphasis>DNS Encoding of Geographical Location</Emphasis>, 11/01/1994.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1183</Term>
<ListItem>
<Para>
R. Ullmann, P. Mockapetris, L. Mamakos, C. Everhart,
<Emphasis>New DNS RR Definitions</Emphasis>, 10/08/1990.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1035</Term>
<ListItem>
<Para>
P. Mockapetris, <Emphasis>Domain names - implementation and
specification</Emphasis>, 11/01/1987.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1034</Term>
<ListItem>
<Para>
P. Mockapetris, <Emphasis>Domain names - concepts and
facilities</Emphasis>, 11/01/1987.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1033</Term>
<ListItem>
<Para>
M. Lottor, <Emphasis>Domain administrators operations
guide</Emphasis>, 11/01/1987.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 1032</Term>
<ListItem>
<Para>
M. Stahl, <Emphasis>Domain administrators guide</Emphasis>,
11/01/1987.
</Para>
</VarListEntry>
<VarListEntry>
<Term>RFC 974</Term>
<ListItem>
<Para>
C. Partridge, <Emphasis>Mail routing and the domain system</Emphasis>,
01/01/1986.
</Para>
</VarListEntry>
</VariableList>
</Para>

</Sect1>

</Article>












