Subject: Linux-Admin Digest #201
From: Digestifier <[email-masked]>
To: [email-masked]
Date: Sat, 15 Oct 94 22:13:34 EDT

Linux-Admin Digest #201, Volume #2               Sat, 15 Oct 94 22:13:34 EDT

Contents:
  Re: FTPD and dir/ls (Daniel Tran)
  Re: Serious Bug In The Networking Code (Daniel Tran)
  WHY - kernel: hda: read_intr: error = 0x04 (Todd R. Lawrence)
  Re: Cron Problems - Script runs from shell but not cron (Brian Kramer)
  Re: Ftape works. mt doesn't :( (Carlos Dominguez)
  Re: Mystery Chip...AMD (Michael Berthold)
  Re: Mystery Chip...AMD (Michael Berthold)
  Re: PPP indirectly?? (Andreas Liebe)
  Re: Intel Etherexpress net card problems: nasty "Rx buf.." messages (Daniel Tran)
  Re: /tmp/ is not cleaned up (James Fidell)
  [Q] unerase? undelete? (Dino Butorac (III rac))
  Re: Please don't post security holess... (Shannon Hendrix)
  Re: New Motif lib's for use with XFree 3.1 ? (Shannon Hendrix)
  Re: Mystery Chip...AMD (Michael Berthold)
  Re: Intel Etherexpress net card problems: nasty "Rx buf.." messages (John Lellis)
  Re: Extreme delays telnetting into linux box (Klaus Lichtenwalder)
  Re: Linux and Solairs (Chris Dent)
  Re: Web browser for linux? (Frank B. Brokken)
  Re: [Q] unerase? undelete? (Frank B. Brokken)

----------------------------------------------------------------------------

From: [email-masked] (Daniel Tran)
Subject: Re: FTPD and dir/ls
Date: Mon, 10 Oct 1994 17:49:30 GMT

In article <[email-masked]> "Stephen Davies" <[email-masked]> writes:

>For the past year or so I have been running a version of ftpd dated April
>11, 1993.

>Because of the problems described in the "FTP freezes" thread, I decided
>to try alternative ftpd codes. So far, I have tried the wu-ftpd and the
>ftpd in Florian La Roche's NetKit.

>Both of these exhibit the behaviour that client "dir" and "ls" commands
>_say_ that they have completed successfully, but nothing is displayed.

>The "nlist" command, however, works correctly.

>The CHANGES file in NetKit says that the code has been changed to conform
>to RFC959 and that this will cause problems for some clients. I have tried
>the Linux client and two others and all refuse to display any directory/
>file information.

I don't know - but may be it has something to do with files the /ftp/lib 
directory.  I have libc.so.4 and ld.so there.
What linux kernel are you running?

Daniel Tran [email-masked]

------------------------------

From: [email-masked] (Daniel Tran)
Crossposted-To: comp.os.linux.development,comp.os.linux.help
Subject: Re: Serious Bug In The Networking Code
Date: Mon, 10 Oct 1994 17:51:46 GMT

In article <[email-masked]> [email-masked] (Jerry Ablan) writes:
>: There appears to be a serious bug in some of the networking code
>: supplied with linux/slackware, that causes the computer to get
>: 'network unreachable' after approximately 3 minutes of perfect
>: functioning.  I have no idea what the problem might be, and if
>: somebody tell me where to look, I can try to figure out what versions
>: my drivers etc. are.  Here are the configurations I ve gotten this
>: problem with:

>I've noticed that this occurs when you run routed. Do not run routed and see
>if it still happens.

>-- Jerry

Would running running routed with -q parameter help.

Daniel Tran - [email-masked]

------------------------------

From: [email-masked] (Todd R. Lawrence)
Subject: WHY - kernel: hda: read_intr: error = 0x04
Date: 10 Oct 1994 17:45:34 GMT

I recently switched my VideoCard from a Trident, to an Orchid Farenheit
after installing the Card, I begen receiving the following errors anytime
there is even moderate HD access. If I swap back to my trident card, the
problem ceases. Can someone please explain what is going on, and How I can
go about correcting it.

Oct  9 21:25:55 lod kernel: hda: hd_request: no DRQ
Oct  8 23:25:23 lod kernel: hda: read_intr: error = 0x04
Oct  8 23:25:38 lod kernel: hda: read_intr: status = 0x51

Thanks

--
Todd Lawrence
LOD Communications
"I would like everyone to be nice to baby crabs..."

------------------------------

From: [email-masked] (Brian Kramer)
Subject: Re: Cron Problems - Script runs from shell but not cron
Date: 15 Oct 1994 12:05:25 -0400

The version of cron that comes with slackware does not support other shells 
besides bash.  I changed the script to bash and it works fine.   Even
with the #!/bin/ksh it died.

-- 
Brian Kramer - Owner/Systems Administrator - [email-masked]
New Jersey Computer Connection - Public Access Unix Site - pluto.njcc.com
Voice: 609-896-2799 - Fax: 609-896-2994 - Dialups: 609-896-3191
Dialup or Telnet to pluto.njcc.com and log in as guest for more information.

------------------------------

From: [email-masked] (Carlos Dominguez)
Subject: Re: Ftape works. mt doesn't :(
Date: 13 Oct 1994 20:57:57 -0400

Timothy Murphy ([email-masked]) wrote:

: Incidentally, if ftape is working for you, please tell us:

: 1. Version of Linux kernel
1.1.52

: 2. Version of ftape
1.13b - patched from sunsite

: 3. Exact backup command given
tar clvzf /dev/ftape /

: 4. Size (approx) of backup

about 32k blocks in mt root filesystem
about 118k blocks in my /mnt filesystem

Right now I have one tape for each filesystem, but will try tonight
to use the /dev/nftape device and mt to store more than one tar archive
per tape compressed.

After I load the ftape module, and use it, and unload it, my floppy drives
remain inaccessible until I reboot the machine. Is this common ?

-- 
  __  __   __ | .__.  __. ::::  Carlos Dominguez - proprietor - sysadmin  
 |    __| |   | |  | |__  ::::  [email-masked]
 |__ |__| |   | |__| .__| ::::  Basselope *nix systems
  ---------------------------   Internet services consulting is our forte

------------------------------

From: [email-masked] (Michael Berthold)
Crossposted-To: comp.sys.ibm.pc.hardware.systems,comp.os.linux.misc
Subject: Re: Mystery Chip...AMD
Date: 14 Oct 1994 10:39:45 GMT
Reply-To: [email-masked]

In article <[email-masked]>, [email-masked] (Gregory Urban) writes:
|> In article <[email-masked]>,
|> Marten Liebster <[email-masked]> wrote:
|> >So when is AMD comming out with a 486dx4-120? :-)  
|> >Marten
|> NO, NO, NO !!!!!!!!!!
|> 
|> Only Intel uses STUPID names for their chips.  AMD will produce a DX3/120
|> (clock tripled, 40mhz external, 120mhz internal).
|>
|> Greg Urban          | "I can stand brute force, but brute reason is quite 

You should know the facts before posting "stupid" flames. The "4" has
nothing to do with the clock-tripling but with the performace compared
to a normal 486.
And you should have said: AMD will "copy" another chip from Intel. :-)

just my $0.02, Michael

------------------------------

From: [email-masked] (Michael Berthold)
Crossposted-To: comp.sys.ibm.pc.hardware.systems,comp.os.linux.misc
Subject: Re: Mystery Chip...AMD
Date: 14 Oct 1994 10:44:17 GMT
Reply-To: [email-masked]

In article <[email-masked]>, [email-masked] (Daniel Zappala) writes:
|> 
|> In article <[email-masked]>, [email-masked] (John Palaima) writes:
|> > 
|> > Hah.  Apparently you didn't hear that the Am486 DX/2 66 could be safely
|> > over-clocked to run at 80Mhz.  All the DX2-80 is is a relabeled DX2-66.
|> > That's why it's not much more expensive.  It's the same chip.  Anyone wanna
|> > take bets that new 66Mhz chips will be "crippled" so they can't be over-
|> > clocked? :)  
|> > --
I have doubts.
|> 
|> But a DX2-80 can't be just a relabeled, overclocked DX2-66.  It's bus speed has
|> to be 40 Mhz.
|> 
|> Daniel

Yes, since there are tolerances in the production of chips they can actually
test if the chip runs with 40MHz internally. If they want to sell it as a
Dx/2 80, they are going to check that it runs with at least 90Mhz or so, which
means if you overclock an DX2/66 it might run with 80 (it almost always will),
but it doesn't have to, and your range of tolerance is pretty small.

- Michael

------------------------------

From: [email-masked] (Andreas Liebe)
Subject: Re: PPP indirectly??
Date: 14 Oct 1994 10:43:33 GMT

Donald Griffin (CE) ([email-masked]) wrote:
: I am interested in setting up a PPP link to put my linux box on the 
: internet.  I used to live in a location where I had root access to a 
: machine on the internet and I have since moved to a place where I just 
: have dial-up access.  Would it be possible for me to set up the PPP 
: client on my Linux box and then dial-up -> telnet into the machine that I 
: have root privledges on to complete the PPP connection (I dont think this 
: is possible without some sort of mod to the code or addition). 

It IS possible without modifying ppp. I run ppp from my linux-box at home
over a telnet-session and a pppd on a sparc. It works fine but you have
additional latency over the internet-link.

On the sparc I start ppp with:

pppd passive proxyarp asyncmap 200a0000 mru 296 remotename my.bix.at.home

and similar on linux. I use chap to authenticate and a simple kermit
script to log in. Not very sophisticated, but it works,

        -Andreas

--
     _        _  _  _  TH-Darmstadt               Voice: +49 6151 16 3150
   /_/ /  / /_ /_//_   Network Department         Fax:   +49 6151 16 3050     
  / /./_ / /_ /_//_    Petersenstrasse 30         EMail:
                       D-64287 Darmstadt (Germany)  [email-masked]

------------------------------

From: [email-masked] (Daniel Tran)
Subject: Re: Intel Etherexpress net card problems: nasty "Rx buf.." messages
Date: Mon, 10 Oct 1994 18:00:36 GMT

In article <[email-masked]> [email-masked] (Greg Snyder) writes:
>        I have been having intermittent problems with my net card.  I am
>relatively sure that all the cables are okay, in spite of what
>/var/adm/messages suggests.  Basically, every so often the kernel starts
>spewing all of these Rx buf messages to the messages file.  Here is a piece of
>the log:

{stuff deleted}

>        Sometimes the "Rx buf" messages go on for a long time (300+ lines) and
>throughput drops to next to nothing.  Sometimes it also throws in a "kicking
>board" message every 15 or 20 messages just for good measure.  After a typical
>afternoon ifconfig shows:

>          UP BROADCAST RUNNING  MTU 1500  Metric 1
>          RX packets 22812 errors 4 dropped 0 overruns 0
>          TX packets 12464 errors 1879 dropped 0 overruns 0

>        There are often many TX packet errors, but hardly any RX packet errors
>as I had suspected there would be.  In fact, sometimes there are 0 RX packet
>errors and many TX packet errors.  Sometimes I transfer 5-10 meg files with 0
>errors or messages at 100+ K/sec, and others not more than 2.5 K/sec.
>Interactive users even from sites far away never seem to have any problems for
>some reason.  Any ideas?  The machine is a 90 Mhz Pentium, 8 megs ram,
>slackware 2.0.0, 1.0.9 kernel.  I am tempted to upgrade to a later version of
>the kernel, in hopes of getting a better etherexpress driver.  Anyone have a
>handle on whether upgrading would be a worthwhile use of time, or how to fix
>this problem?

>Thanks,
>Greg

This is normal for Intel EtherExpress users.  Changing / upgrading kernel 
won't help unless there is a newer version eexpress.c.  As of now, I don't 
know if there is a newer version or if there will be one in the future.  
Donald Becker (the author of this driver) told me something about the design 
of EtherExpress that causes it to behave like that.

I ended up switching to a Novell NE2000 and it has been solid ever since.

Daniel Tran [email-masked]

------------------------------

From: [email-masked] (James Fidell)
Subject: Re: /tmp/ is not cleaned up
Date: 15 Oct 1994 17:23:33 +0100

> In article <[email-masked]>,
> Patrick J. Volkerding <[email-masked]> wrote:
> >In article <[email-masked]>,
> >Srihanto A. Nugroho <[email-masked]> wrote:
> 
> 
> >>Is there any reason for not cleaning up /tmp when the system boot ?
> 
> >It will if you add this to /etc/rc.d/rc.local:
> >( cd /tmp ; rm -rf * )

That's possibly not a good idea if /tmp is a mount-point because it trashes
lost+found too, which you may want to keep.

It also will not de-allocate the directory entries for deleted files (some
file-systems might do this, but I'm not sure which).

The way I usually clean up temporary areas which are not mount-points is
to completely remove and re-create the whole directory.

James.
-- 
 "Yield to temptation --             |
  it may not pass your way again"    |     [email-masked]
                                     |
        - Lazarus Long               |              James Fidell

------------------------------

From: [email-masked] (Dino Butorac (III rac))
Subject: [Q] unerase? undelete?
Date: 14 Oct 1994 00:42:51 GMT

Is there any 'unerase' or 'undelete' utility for ext2fs? Accidentally I
rm'ed a bunch of once useful files, and I wasn't able to recover them...
I know, some of you are going to say: 'You should be more careful with
rm and such commands!' but it doesn't really help much. Thanx in advance! 

--
Dino

------------------------------

From: [email-masked] (Shannon Hendrix)
Subject: Re: Please don't post security holess...
Date: Fri, 14 Oct 1994 04:09:06 GMT

Bill Davidsen ([email-masked]) wrote:

: I've been on the net since I was ARPA technical person for GE's *only*
: gateway. I agree, the crackers will spread the info among the bad guys,
: it's up to the good guys to spread the word, too.

Also, the bad guys won't tell anyone except their partners in crime
about the problem.  Better to have it go to both sides than just one.
If anything, people should try hard as they can to outdo the criminal in
spreading such information.
-- 
csh
===========================================================================
[email-masked]      | Linux... that's it for the moment
===================================+ 

------------------------------

Crossposted-To: comp.windows.x.i386unix,comp.windows.x.motif
From: [email-masked] (Shannon Hendrix)
Subject: Re: New Motif lib's for use with XFree 3.1 ?
Date: Fri, 14 Oct 1994 04:16:44 GMT

Rajesh Raj (rxr401@huxley) wrote:

: People know that R4 libraries would be needed to compile/run R4 apps 
: under X11R5. I am sure that there are many people running old versions of 
: Motif with XFree86 3.1.

The problem here is that if an R5 and an R6 program is running then you
have a lot more RAM used for shared libs than you would with a pure R5
or R6 system.

: Again, thanks for the advice. What about reshuffling config (templates, cf, 
: rules) files and includes ? Do you imply that Motif apps can be compiled 
: with R6 includes and templates without any problem ? My experience 
: suggests otherwise.

I found fonts, pathnames, and some includes to be a problem for me too.

: Does it mean that Motif 2.0 would also need X11R5 libraries ? 

I got Motif just 3 or 4 weeks ago from ACC (SWiM).  Now I'm wondering if
it will even work when I upgrade and what they'll charge for an upgrade
of Motif.  And if Motif 2.0 will not run on R6... ?????

: Raj

: [email-masked]

-- 
csh
===========================================================================
[email-masked]      | Linux... that's it for the moment
===================================+ 

------------------------------

From: [email-masked] (Michael Berthold)
Crossposted-To: comp.sys.ibm.pc.hardware.systems,comp.os.linux.misc
Subject: Re: Mystery Chip...AMD
Date: 14 Oct 1994 11:00:18 GMT
Reply-To: [email-masked]

In article <[email-masked]>, [email-masked] (David J. Boniuk) writes:
|> [...] 
|> It is possible that the DX/2-80 is  simply a sampling of the "best" of the 
|> DX/2-66s that come off the line, but I would think it unlikely tht AMD is just 

That is the way I see it too. There is quiet some variance in modern
processor-fabrication.

|> wholesale relabling DX/2-66s to DX/2-80s.

Why should they do that???

|> 

- Michael

------------------------------

From: [email-masked] (John Lellis)
Subject: Re: Intel Etherexpress net card problems: nasty "Rx buf.." messages
Date: 15 Oct 1994 16:50:03 GMT

Eelco ([email-masked]) wrote:
: Daniel Tran ([email-masked]) wrote:

: : This is normal for Intel EtherExpress users.  Changing / upgrading kernel 
: : won't help unless there is a newer version eexpress.c.  As of now, I don't 
: : know if there is a newer version or if there will be one in the future.  
: : Donald Becker (the author of this driver) told me something about the design 
: : of EtherExpress that causes it to behave like that.

: : I ended up switching to a Novell NE2000 and it has been solid ever since.

: : Daniel Tran [email-masked]

: Or do what I did, just add a small delay loop of 150 in the driver, and then
: it works perfectly! 

: [email-masked]

Would you mind posting the diff of what you did so that we can enjoy the fix?

--

John Lellis ([email-masked])

--
... Our continuing mission: To seek out knowledge of C, to explore
strange UNIX commands, and to boldly code where no one has man page 4.

------------------------------

Crossposted-To: comp.os.linux.development
From: [email-masked] (Klaus Lichtenwalder)
Subject: Re: Extreme delays telnetting into linux box
Date: Sat, 15 Oct 1994 11:02:39 GMT

[email-masked] (David - Morris) writes:

>I'll say it again.  When I telnet from a LAN workstation whose
>IP address can't be resolved into a name I experience a VERY long
>delay.  When I add the host to the /etc/hosts, the connection is
>almost instant....

I'd say it's a problem with the nameserver. What does nslookup say?
Where does your /etc/resolv.conf point?

Klaus
-- 
__________________________________________________________________________
Klaus Lichtenwalder, Dipl. Inf., Buschingstr. 65
D-81677 Muenchen, F.R. Germany,  Fax +49-89-98292755
email: [email-masked], [email-masked]

------------------------------

From: [email-masked] (Chris Dent)
Subject: Re: Linux and Solairs
Date: Fri, 14 Oct 1994 07:08:08 GMT

In article <[email-masked]>,
Donald Griffin (CE) <[email-masked]> wrote:
>I am trying to run answerbook from a sun-10 (solaris 2.3), to my linux 
>box (XFree 2.11) via xhost.  I get the answerbook screen, but when I try 
>to display a page it says that it cant start the viewer.  I believe the 
>viewer uses xnews but I dont appear to have an xnews client on my Linux 
>box (The same thing happens when I try to launch imagetool).  Is there 
>anyway to get these machines to co-exist happily??

From the little I know I'd say the problem with answerbook is that it
needs Display Postscript in your X server. The standard 2.11 server
from XFree86 does not have this. Theoretically that means it should
work with XFree86 3.1 (which has DPS), however I wouldn't bet on it.
Answerbook is very persnickety. I can run it on the console of my
Sparc 20 while running the openlook window manager (olwm) but not
fvwm.

More than likely it is the same problem with imagetool, but I'm
not sure.

Chris

-- 
Chris Dent [email-masked] http://www.honors.indiana.edu/~cdent/

------------------------------

From: [email-masked] (Frank B. Brokken)
Subject: Re: Web browser for linux?
Date: Fri, 14 Oct 1994 07:12:34 GMT

[email-masked] (Gary Gitelson) writes:

>I am looking for a good web browser for linux.  I don't have motif so I
                                                ********************
>can't run Mosaic.

    Yes, but that's not required to run the binary. So, if you get Mosaic,
    you should be able to use it, without having the motif-libs.
    
>does anyone know of a good X-based web browser that I can get for linux?

    Mosaic :-)
    
>If so, please mail me with information on where I can get it.
>                                               Thanks in advance,
>                                               Gary Gitelson
>                                               [email-masked]

Frank Brokken
([email-masked])

------------------------------

From: [email-masked] (Frank B. Brokken)
Subject: Re: [Q] unerase? undelete?
Date: Fri, 14 Oct 1994 07:15:33 GMT

[email-masked] (Dino Butorac (III rac)) writes:

>Is there any 'unerase' or 'undelete' utility for ext2fs? Accidentally I
>rm'ed a bunch of once useful files, and I wasn't able to recover them...
>I know, some of you are going to say: 'You should be more careful with
>rm and such commands!' but it doesn't really help much. Thanx in advance! 

>--
>Dino

Undelete in all generality is called 'restoring from a backup', so you might
talk to your backup medium. Several good backupprocedures exist, e.g.
backup-X.YY.tar.gz at ftp.icce.rug.nl /pub/unix (by Karel Kubat).

Apart from that, I sometimes use an icmake-script: am for 'attic move'
that stores files I'm not sure I want completely gone in an archive on disk.

Every once in a while I 'clean up the attic' removing from it the
files I'm sure I can do without. If I remember well am is in the examples of
the icmake distribution (at sunsite, tsx, or ftp.icce.rug.nl, /pub/unix)
(otherwise I'll put it on our ftp-site on request).

Apart from that, no undelete/unerase exist.

Good Luck.

        |
     ---|---     
=====+==0==+=====
     |     |

      Frank

        E-mail to: [email-masked]      
               or: [email-masked]
        Phone:     (+31) 50 63 36 88 (mo-fr, 9:00-17:00 MET, DST if active)

                   (+31) 59 03 22 23 (otherwise, until Oct. 9, 1995)
                   (+31) 50 403 2223 (starting Oct. 10, 1995).

        -------------------------------------------------------------------
        icmake: obtain it by anonymous ftp from ftp.icce.rug.nl,
                directory pub/unix

        The LINUX SYMPOSIUM will be organized december 8/9 1994.
        finger [email-masked] for the latest details
        -------------------------------------------------------------------

------------------------------

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