Subject: Linux-Admin Digest #171
From: Digestifier <[email-masked]>
To: [email-masked]
Date: Mon, 10 Oct 94 15:13:57 EDT

Linux-Admin Digest #171, Volume #2               Mon, 10 Oct 94 15:13:57 EDT

Contents:
  Re: Please don't post security holess... (Steven Pritchard)
  Re: XFree-3.1 & openwin/olvwm HOW-TO (Pierre Belanger)
  Re: ctwm compilation error (Hendrik G. Seliger)
  Re: Mystery Chip...AMD (Brad Matthew Garcia)
  Re: Ftape works...Not yet (Peter Dalgaard SFE)
  Re: Ftape works...Not yet (Timothy Murphy)
  Re: TACACS server software (Mark Ryding (Network Manager))
  Not logging out from xterms (Orjan Stromberg)
  Re: XFree86-3.1 - Whoopee! (Alan Cox)
  Compressed FS for Linux? (JL Gomez)
  Re: PCI vs. VLB (ASUS SP3G) (Bryan Andersen)
  Re: Xterminals with Linux as X server (Ken Edwards)
  Re: Please don't post security holess... ("Bryan J. Ischo")
  Re: double click speed (Ben Kelley (good guy))
  Re: XFree86-3.1 - Whoopee! (Donald Jeff Dionne)
  Re: Yggdrasil & large SCSI disk??? (Jeff Kesselman)
  Boot problem!!! (Ng_Siu_Kong)
  Good Video Card For Linux (Ron Blancarte)
  help with kernel patch 1.1.44 > 1.1.45 ("Scott P. Daffron")
  Re: AGETTY and Modems (Michael R. McAleese)

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

From: [email-masked] (Steven Pritchard)
Subject: Re: Please don't post security holess...
Date: 9 Oct 1994 14:37:03 -0600

[email-masked] (Shawn Brown) writes:
>In article <[email-masked]>,
>Isis Leslie <[email-masked]> wrote:
>>I'm rather unconfortable with the posting of all of these security holes.
>>For a while I was under the impression that this was a no-no, and that
>>while sure, posting a "fix" or "work around will tell those in the know 
>>just what the whole is, at least it makes it a little tougher.

>I disagree completely.  This information should be disseminated freely.
>I want to know everything about any real or potential security problems
>with my computer.  The reasons for this should be obvious.  Linux, in
>my opinion, is still an experimenters OS, and as such, I want to know
>all the steamy details.

Many people will disagree with that statement.  I know many people using 
Linux for serious work.

>You really shouldn't be expecting any real level of security from a 
>freeware UNIX as it is.  Linux is at least as secure as several 
>commercial UNIXes, but I would never rely on it for any level of
>security.

That's what the commercial UNIX vendors would like you to believe.  Note 
that this particular security hole had nothing to do with Linux itself, 
it was a smail bug.  Isn't smail used on systems other than Linux?

I believe Linux is as secure as it is because people are letting everyone 
know when there is a problem.  Fixes or work-arounds appear almost 
immediately.  If you believe your site has idiots who will try to exploit 
these holes, I would suggest watching the newsgroups closely.  Either 
that or kick the idiots off.  Anyway, when's the last time a network hole 
showed up?

My $.02,

Steve
-- 
[email-masked]  | Southern Illinois Linux Users Group
(618)549-8579             | Meetings the 1st and 3rd Mondays of every month.
Steven Pritchard          | http://nyx10.cs.du.edu:8001/~spritcha/home.html

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

From: [email-masked] (Pierre Belanger)
Subject: Re: XFree-3.1 & openwin/olvwm HOW-TO
Date: 9 Oct 1994 20:46:36 GMT

Hello (it's me again),

: Now, let me tell you that in the Virtual Desktop manager, the horizontal line
: is missing...??? Would someone else know why?
If you figure out let me know.

: And, your "Workspace" need to be edited also.  Otherwise, you will run 'old'
: binaries.  I did not change this 'yet' and I will not have the time until
: maybe tonight or tomorrow.  I will post it here when I change it.
I just figure out this is wrong.  If you have a symbolic link:

in directory /usr/bin: X11 -> /usr/X11R6/bin/

You won't need to modify your Workspace menu.

: Now just type: openwin3.1 (don't forget to put chmod 755 openwin3.1).
Yep.

BTW: You can delete your old X11 bin files, rm -R /usr/X11/bin but ...
     I notice a few symbolic links in this directory.  So, you should maybe
     consider making these symbolic links in the new /usr/X11R6/bin.  Most
     of these symb. link are for the disk series IV (interviews).  There might
     be programs you want to keep?

Have fun,

Pierre B., [email-masked], [email-masked],
           [email-masked]

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

From: [email-masked] (Hendrik G. Seliger)
Subject: Re: ctwm compilation error
Date: 7 Oct 1994 18:07:40 GMT
Reply-To: [email-masked]

Henry Gabryjelski ([email-masked]) wrote:
: When compiling ctwm-3.2p1, I get the following error during compilation:

: /usr/lib/libXpm.sa(__T00028.o): Undefined symbol 
:                                    "__NEEDS_SHRLIB_libX11_3" referenced
: make: *** [ctwm] Error 1

: Does anyone know why this happens?  Is there a patch? Can I fix this
: myself?

You will need to recompile libXpm and make new shared libs. Get the
libXpm sources, change the NEEDS_SHRLIB_libX11_3 to an
NEEDS_SHRLIB_libX11_6 (somewhere in src/jump, I think), and recompile
it. You'll need the dll-stuff to do this.  This will give you a libXpm
which goes along with X11R6. (Mine is up and running since yesterday).

Hope this helps,

                Hank

--
======================================================================
         Hendrik G. Seliger                  Universitaet Essen
     [email-masked]                Schuetzenbahn 70
      Tel.: +49-201-183-2898                45117 Essen, Germany
======================================================================
             "Handling interrupts is simple." (G. Pajari)
             "Interrupts are an unpleasant fact of life." (A. Tanenbaum)

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

From: [email-masked] (Brad Matthew Garcia)
Crossposted-To: comp.sys.ibm.pc.hardware.systems,comp.os.linux.misc
Subject: Re: Mystery Chip...AMD
Date: 10 Oct 1994 11:44:09 GMT

In article <[email-masked]>, [email-masked] (Daniel Zappala) writes:
|>
|> But doesn't Intel sell a chip that upgrades a 486DX-33 into a 486DX2-66?
|> How do they manage that?
|> 
|> 
|> Daniel

In some cases, the old chip must be yanked and the new chip inserted in
its place.  So it updates a 486-33 computer system to a 486-66, but the
chip itself is replaced.

I know there are (for some systems) ways to upgrade w/o yanking the old
chip.  Does anyone know more about these, or was I misinformed?
-- 
Brad M. Garcia                   Carnegie Mellon University 
   ____/  ____/  ____/ Department of Electrical and Computer Engineering
  __/    /      __/   "The only Engineering department in the world where
_____/ _____/ _____/   the secretaries have the most powerful computers."

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

From: [email-masked] (Peter Dalgaard SFE)
Subject: Re: Ftape works...Not yet
Date: 10 Oct 1994 08:58:15 GMT

In <[email-masked]> I wrote:

>Hmm. One of the previous versions had an end-of track problem.
>Essentially, it went looking for a sector that wasn't there and
>forgot to reset the FDC when it failed. I sent Bas a fix then
>(sometime back in jan/feb or thereabouts) but he replied that
>the problem had been fixed in another way. Perhaps it's crept in
>again? Forgot details, looking into it during the weekend.
> 
Installed Linux 1.1.52 & Ftape 1.13b. Can't reproduce the
problem. Only I/O-error I got was by forgetting that the
non-rewinding driver was being used and hitting end-of-tape!
So the old bug seems to be gone. Backed up 129 Mb in 36 minutes.
Just as well, because immediately thereafter I did the classical
*U*X goof 'rm -rf ftape *' in my home directory!!!

However, I had another curious problem: Somehow the tape got
into a state where it stayed busy after commands so I had to
eject and reinsert the tape between each command. Only got back
to normal after cycling power.
--
   O_   ---- Peter Dalgaard
  c/ /'  --- Dept. of Biostatistics 
 ( ) \( ) -- University of Copenhagen
~~~~~~~~~~ - ([email-masked])

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

From: [email-masked] (Timothy Murphy)
Subject: Re: Ftape works...Not yet
Date: 10 Oct 1994 14:07:39 +0100

[email-masked] (Peter Dalgaard SFE) writes:

>Installed Linux 1.1.52 & Ftape 1.13b. Can't reproduce the
>problem. Only I/O-error I got was by forgetting that the
>non-rewinding driver was being used and hitting end-of-tape!
>So the old bug seems to be gone. Backed up 129 Mb in 36 minutes.
>Just as well, because immediately thereafter I did the classical
>*U*X goof 'rm -rf ftape *' in my home directory!!!

Please tell us _exactly_ how you backed up.
What commands did you use?
(If possible, just give the actual commands.)

-- 
Timothy Murphy  
e-mail: [email-masked]
tel: +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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

From: [email-masked] (Mark Ryding (Network Manager))
Subject: Re: TACACS server software
Date: 10 Oct 1994 14:38:39 GMT

In article <[email-masked]>, [email-masked] (David Sisson) writes:
>In article <[email-masked]>,
>root <[email-masked]> wrote:
>>Hello all, I'm looking for a bin or src of the terminal 
>>server software called "tacacs" that will cmpile/run on
>>a Linux server (Slackware 1.03 I think).  I'm planning
>>on using a CISCO 2511 rtr/tserver on my system.
>
>    CISCO has their own server code that you should be able to get from
>them and use on your Linux box.  Contact them for more information about
>their server.
>
>--
>    [email-masked]

To whom ever was trying to do this, did you get it to work?  I need too
do the same thing.

-- 
=======================================================================
Mark A. Ryding              | "Waiting for the winds of change,
Network Manager             |  to sweep the clouds away."  - Rush
Evans and Sutherland        |
[email-masked]              |
=======================================================================

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

From: connor@tekla (Orjan Stromberg)
Subject: Not logging out from xterms
Date: 10 Oct 1994 13:15:08 GMT

I have a slight problem. When people log out from windows in Xfree86
they only get 'half' logged out. The shell is killed and the user is no
longer shown on the who-information. But he/she is still listed in the
finger-info, and gets quite some idle time after a while. :)
The tty still seems free for other users though, since eventually someone
logs in on it, even if it is occupied according to the finger-info.
The shell is killed, and no processes runs on that particular tty, but yet
finger believe someone is logged in.
Anyone know what is causing this? is it finger that is messing, or is it
X?

Thanks in advance

  /Orjan

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

From: [email-masked] (Alan Cox)
Subject: Re: XFree86-3.1 - Whoopee!
Date: Mon, 10 Oct 1994 09:54:09 GMT

In article <[email-masked]> [email-masked] (Carlos Dominguez) writes:
>Will fvwm and its modules work in Xfree3.11? 

I can't get any of openlook or fvwm to work. I'm inclined to think this is
probably X11R6 incompatibilities with these packages rather than bugs. So
until they appear fixed I shall stay with 2.1.1. 

Alan

-- 
  ..-----------,,----------------------------,,----------------------------,,
 // Alan Cox  //  [email-masked]   //  GW4PTS@GB7SWN.#45.GBR.EU  //
 ``----------'`----------------------------'`----------------------------''

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

From: [email-masked] (JL Gomez)
Subject: Compressed FS for Linux?
Date: 10 Oct 1994 09:33:14 -0500
Reply-To: [email-masked]

Anyone know of compressed filesystem scheme for Linux?
Where do I FTP the source from?

I would like to compress my netnews filesystem to create more space.

Something like Stacker for DOS.

Thanks for the info!
-- 
[email-masked]

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

From: [email-masked] (Bryan Andersen)
Subject: Re: PCI vs. VLB (ASUS SP3G)
Date: 8 Oct 94 21:06:47 GMT

[email-masked] (Donald Becker) writes:

>Alas many of the chipsets have bugs, which are worked around with varying
>degrees of success.  I had horrible problems with the NCR53c810 controller
>on the ASUS SP3G motherboard until I turned off every feature in the BIOS
>setup. 

Interesting, I have that same board and didn't need to change any of
the default settings.  I wonder how old you board is.  Mine was made
about 3 months ago.  Could you be having interferance with one of
your cards?  From what I've gathered it's rather sensitive to some
video cards out there.  I have a ISA bus ViewLogic 928 Movie, from my
previous sytem, that was causing bootup problems till I replaced it
with a different card.  Right now I only have two cards in the system,
a real old ATI VGA Wonder 16 and a generic 2 port 16550 card.  I'm soon
looking to get the new ATI PCI video card for it.  I Want X-Windows
back up and running.  

--
Bryan Andersen           <-O.O O.O-+  Back on the net again...
                     +-O.O \_/ \_/ O.O->  Diversity is the spice of life...
[email-masked]    \_/ <-O.O-+ \_/  Love above gender...
[email-masked]  \_/

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

From: [email-masked] (Ken Edwards)
Subject: Re: Xterminals with Linux as X server
Date: Sat, 8 Oct 1994 20:23:54 GMT

I don't think this got out so I am reposting, my apologies if you see it
twice:

Ken Edwards ([email-masked]) wrote:
: Mark A. Davis ([email-masked]) wrote:
: : [email-masked] (Srini Seetharam) writes:
: [ ... ]
: : >Currently, the Linux machines respond to it
: : >BUT the windows are managed by the
: : >Linux machine. As one can guess, once many Xterminals are served
: : >by a single Linux machine, it is soon overwhelmed.

: How many Xterminals are you looking to hook to one Linux machine?

: : I am not sure what you are asking.  The clients run on the Linux box.
: : That is the way Xterminals work.  Just think of them as very sophisticated
: : character terminals.... the more you have, with the more users, the more
: : the load on the host (the Linux machine).  You will need to meet that 
: : load by adding additional resources on the host as necessary (more memory,
: : faster processer, etc).  Or, you can add more hosts to serve the increasing
: : Xterminal pool (as many as you want).

: : >How do I get the Linux machine to respond to the XDMCP, but let
: : >the Xterminals manage their windows ?

: : What do you mean by "manage their own windows"??  If you mean running the
: : window manager client, then that is quite possible (through something
: : called a local client).  But it is usually unnecessary.  The window
: : manager actually puts very little load on the host compared to other
: : clients.

: This is correct, the window manager (I use fvwm) does not impose much 
: load on the host,  if you have many Xterminals connected to a Linux box 
: and is slowing down, you probably need more memory, faster processor, or 
: more Linux boxes.  You did not say how many Xterminals you have connected,
: but I would not think that a Linux box would be a satisfactory host to more
: than 3 or 4 Xterminals. (Maybe a P90 with 64Megs could do more, but probably
: not too many).  My 486dx66/16Meg is happy serving 2 Xterminals, but I would
: not want to impose on it much further.  Mind you this is a development box
: with heavy users.  I look at my own login right now for example and find that
: I have 16 entries in my window list, including 8 xterms, gpanel, gfm, tkmail,
: goodstuff, xsysinfo, xeyes, cmdframe, and of course the newsreader.  If your 
: users use these kind of resources, you will not be able to support too many.

: : >I have tried changing the Xaccess and Xserver files in the
: : >/usr/X11/lib/X11/xdm  directory but cannot figure it out.

: : You should *NOT* use the Xserver file (except for the local console)
: : if you are using XDMCP.  It is unnecessary, and will cause problems.

: : >The man pages were a little help in initailly setting up 
: : >what I have running but I cannot figure out how to let the
: : >Xterminals manage their own windows.
: :              ^^^^^^^^^^^^^^^^^^^^^^^

: So anyway, to respond to the question:

: You will have to read the documentation the comes with your Xterminal.
: All you need to do on the Linux box is to delete the line in your 
: xsession/xinitrc file that starts the window manager, now Linux will
: not try to manage the windows.

: Then you will have to get the window manager that came with your Xterminal 
: to run.  Note that this must be the one that came with your Xterminal, none
: of the Linux window managers will run on your Xterminal, most of them do not
: even have intel inside.  On my TekXpress for example, I have the 
: TekXpress version of Mwm,  getting it to run is just a matter of installing
: the binary in the /tftpboot directory and putting one line in the xp20.cnf
: file (start_mwm) to tell the TekXpress to run the window manager.

: Or, you could start it interactively, again, for my TekXpress, this is just
: a matter of pressing the 'setup' key, and under the 'Local Clients' menu
: you will find 'MWM'.

: While it is slightly faster than using fvwm on the Linux box, I prefer
: fvwm to mwm so I do not use it this way. 

: -- 
-- 

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

From: "Bryan J. Ischo" <[email-masked]>
Subject: Re: Please don't post security holess...
Date: Mon, 10 Oct 1994 13:23:01 -0400

Excerpts from netnews.comp.os.linux.admin: 9-Oct-94 Re: Please don't
post secur.. by Steve [email-masked] 
> If there was a security developers group, then the holes could
> be emailed to them for evaluation so as not to publicize the hole
> long before the fix.  Or make a moderated comp.os.linux.security
> group?
>  
> Just a few thoughts for discussion...  
>  
> Steve...

   I agree completely.  I certainly don't have time to sort through all
of the messages on these bboards (I'll probably even miss this one when
it shows up) but I really want to know the fixes (and the reasons for)
all of the security holes that people discover.

    A mailing list or MODERATED newsgroup would be perfect.

Bryan

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

From: [email-masked] (Ben Kelley (good guy))
Subject: Re: double click speed
Reply-To: [email-masked]
Date: Wed, 5 Oct 1994 04:21:43 GMT

In article [email-masked], [email-masked] () writes:
]How can I adjust the mouse double click rate in X?  It's way too fast now.
]Thanks.

Depends on what window manager you are using, I think, and probably what
widget set also.

If using olwm (or olvwm) you can set a resource called
"OpenWindows.MultiClickTimeout". I currently have it set to 4 (milliseconds
I think). All xview programs _should_ use this value. YMMV (Your Mileage May
Vary)

                                        - Ben Kelley.

-- 
This e-correspondance is PostcardWare (tm). You are hereby granted the licence
to view, read, and otherwise inwardly digest this message for 14 days, after
which, for continued use, you should register by sending a post card to the
address below. Registration entitles you to free e-mail support in understanding
future signatures.

Ben Kelley - SBC Australia, PO Box N100, Grosvenor Pl, Sydney, 2000, Australia
(e-postcards to [email-masked])                 Ph +61 (0)2 258 2382

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

From: [email-masked] (Donald Jeff Dionne)
Subject: Re: XFree86-3.1 - Whoopee!
Date: 5 Oct 1994 04:27:55 GMT

Olli Vinberg ([email-masked]) wrote:
: In article <[email-masked]>,
: Carlos Dominguez <[email-masked]> wrote:
: >Michael_Nelson ([email-masked]) wrote:
: >
: >:    I think I'll wait awhile before attempting 3.1 again... :-(
: >
: >I think I'll await for it to become part of a future slackware
: >distribution . 
: >
: >I've worked too hard to get X up and running, and to futz with fvwm and 
: >its neat-o window sound event manager, to start from scratch all over again.

: If you have a card that is supported for 16bpp oar 32bpp and enough
: video-memory, then go for it! (I have a cheap cirrus 5428-card and 1M of
: memory on it, so I can only have 800x600 resolution with 16bit colour,
: but I use it anyway)

Hmmm.... I'm having a little trouble with that.  I've got the 3.1 X server 
running (just the server, I don't want all those incompatible lib's kicking
around until things get recompiled for them) and besides it being bigger, as
one would expect, it seems to be about the same.  I just can't get 16bit
colour to work, that's all.  I've got an S3 with 2Meg of VRAM but the server
complains about my "normal" RAMDAC.  I'm sure my RAMDAC is capible of more 
than that.... Could someone point out what I'm missing in my XF86config?

BTW, Great work to those at XFree86, I can't wait to try the modem compression,
and thanks, also!!!!

73! de Jeff / VE3DJF
[email-masked]

: And the doom-mode is good too :)

: But if your card is not one of the supported cards or if you are not
: interested in TruoColor, etc. and use X mainly for xterms, stick with
: 2.11.

: -- 
: -----------------------------------------------------------------------
: Olli Vinberg                \  Our OS who art in CPU, UNIX be thy name.
: [email-masked]        \  Thy programs run, thy syscalls done,
: http://www.helsinki.fi/~vinberg \  in kernel as it is in user!

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

Crossposted-To: comp.os.linux.help
From: [email-masked] (Jeff Kesselman)
Subject: Re: Yggdrasil & large SCSI disk???
Date: Wed, 5 Oct 1994 01:50:35 GMT

I dunno if this will help you any, but what I did with my ncr5380 generic 
driver (which can't read geometry either) was to boot up DOS and run my 
old DOS format utility (SpeedStor in my case) and it showed me the right 
values for the drive, which I then wrote into the front of my linux manual.

I would suspect any descent DOS disk snooper could tell you this stuff 
(if you don't have one, may be theres a ftp'able one or a friedn has one 
you can borrow.  Ild ask in one of the DOS technical discussions if your 
looking for an ftp-able one.)

Hope that helps...

Jeff Kesselman

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

From: [email-masked] (Ng_Siu_Kong)
Subject: Boot problem!!!
Date: Mon, 10 Oct 1994 13:26:11 GMT

        My Linux box still work well this morning but tonit,
        when I boot up, it hangup :

        FILO boot:
        Loading Linux......

        The machine was hangup, then I try to use the floppy
        to boot and it work again, however I found the the
        file /vmlinuz was disappear.  What should I do now??

                                                Danny To

        p.s.  Please mail to [email-masked] or
              [email-masked], as my machine is a mess
              now and using other's account..

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

From: [email-masked] (Ron Blancarte)
Subject: Good Video Card For Linux
Date: 10 Oct 1994 04:28:26 GMT

My Brother-in-Law is getting a PC to run Linux on one partition, and
Windows/Dos on the other one.  Now anyone can make Win/Dos Drivers, but we are
looking for a Video card that has really good Linux drivers.  Things to take
note when giving advice:  We are not looking for a 64 bit Video card, so
please don't recomend them, unless they are the best card hands down.

Please e-mail responces back to me.  I  don't frequent this group.

RonB

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

From: "Scott P. Daffron" <[email-masked]>
Subject: help with kernel patch 1.1.44 > 1.1.45
Date: Wed, 5 Oct 1994 01:04:18 -0400 (EDT)

Help.  I follow all of the normal steps, but when I "make proper", it 
exits on an error.  I am stuck at this point.  No problems in previous 
patches.  Help!

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

From: [email-masked] (Michael R. McAleese)
Subject: Re: AGETTY and Modems
Date: 4 Oct 1994 22:30:37 -0700

In article <[email-masked]>,
 <[email-masked]> wrote:
>
>I'm trying to allow login to my Linux 1.1.45 system through the modem, 
>but when I start agetty for the modem port, it goes right into the login 
>prompt.  Is there a way to make this work?  My previous experience under 
>SCO Unix was simply to spawn a getty for the modem port during the init 
>phase, and it took care of itself from there.

     Dialup logins seem to be a real headache under Linux.  After a lot
of experimenting I would have to suggest that you use getty_ps, not
agetty.  As a further tip, some modems seem to barf on the configuration
files (either /etc/conf.uugetty or /etc/default/uugetty, depending on
how you compiled getty_ps).  I've had some success with commenting out
the INIT line in the file and letting the default compiled in work.

-- 
           Michael R. McAleese - [email-masked]
   "Man will believe the impossible, but never the improbable." - Oscar Wilde
          Origin: Angmar, Internet Access for Frivolous Pursuits.

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

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End of Linux-Admin Digest
******************************