HDTenEightyP/NetNews huggingface dataset:
From: cja@chmist.zso.dec.com (Carl J. Appellof)
Subject: Re: Ok Ultrix's console is brain dead..anyone rewritten it?
Organization: Digital Equipment Corporation
Date: Mon, 31 Aug 1992 16:41:48 GMT

In article <RFROST.92Aug28231900@bruegel.jrc.flinders.edu.au> rfrost@degas.jrc.flinders.edu.au (Richard Frost) writes:

>   I posted before about the console mode on DecStations..later finding out it
>   does not support screen oriented editors etc.. Ok Ok.. so
>   I can't get a Termcap entry to fix it.. anyone looked at rewriting
>   the console device.. ?

I believe the DEC OSF/1 version of the console driver supports
enough ANSI screen positioning commands so that vi works ok.
(The result of an OSF engineer who couldn't live without vi.)
I haven't tried emacs, though :-)
-- 
+-------------------------------+-------------------------------+
| Carl J. Appellof		|	cja@chmist.zso.dec.com	|
| Open Systems Group            |                               |
| Digital Equipment Corporation	|	This space for rent	|
Newsgroups: comp.unix.ultrix
From: Ninane@fynu.ucl.ac.be (Alain Ninane - FYNU)
Subject: Exporting a file system by NFS with restricted access
Followup-To: comp.unix.ultrix
Originator: nina@fynu4.fynu.ucl.ac.be
Keywords: exports - NFS - Ultrix
Organization: University of Louvain (LLN) - Nuclear Physics Dept.
Date: Thu, 27 Aug 1992 06:30:51 GMT


Is there a simple way to export an Ultrix system file to different
machines/netgroups with different access restrictions ?
I'd like to have an /etc/exports file which looks like this:

    /myFileSystem   -r=0    host1
    /myFileSystem   -r=2    host2
    /myFileSystem   -o      host3

However, according to the manual, duplicate directory entries
are forbidden (ignored) ...

I'm running Ultrix 4.2a.

Thanks,
Alain
-- 
Dr. Alain H. Ninane     | Tel : +32-10-47.32.73 - Fax: +32-10-45.21.83
University of Louvain   | Internet: Ninane@fynu.ucl.ac.be
Nuclear Physics Dept.   | Ch. du Cyclotron, 2
B-1348 Louvain-la-Neuve | BELGIUM               
Newsgroups: comp.unix.ultrix
From: alan@nabeth.enet.dec.com (Alan Rollow - Alan's Home for Wayward Tumbleweeds.)
Subject: Re: passwd/group file entries
Reply-To: alan@nabeth.enet.dec.com (Alan Rollow - Alan's Home for Wayward Tumbleweeds.)
Organization: Digital Equipment Corporation
Date: Thu, 27 Aug 1992 02:10:18 GMT


In article <1992Aug26.153105.1@vax.sonoma.edu>, mccalld@vax.sonoma.edu writes:
>
> [ The customer wants to put people in multiple groups. ]
>How does this entry look in the passwd file....ie
>
>john:qhcif09872hf:100:10,15:J. C. User (at large):/usr/users/john:/bin/csh

Wrong.  It looks wrong.  If you're luck the group id parser will pick
up either the 10 or the 15 and not get confused about the rest.  To
put people in more than one group, you put one group number in the
password file and add their name to the group list in /etc/group.

For example:

stripe:*:102:alan,thisuser,thatuser,otherusr

>mac
--
Alan Rollow				alan@nabeth.cxo.dec.com

Newsgroups: comp.unix.ultrix
From: paul@engin.umich.edu (Paul Killey)
Subject: Re: Decstation Ultrix single-user mode security hole.
Date: Sun, 23 Aug 92 16:27:44 EDT
Organization: University of Michigan Engineering, Ann Arbor
Distribution: comp
Keywords: DecStation, Ultrix, Security Hole, Help

In article <ZAPHOD.92Aug22032228@splinter.coe.northeastern.edu> zaphod@splinter.coe.northeastern.edu (Erik Lloyd Bunce) writes:
>
>	On Decstations running Ultrix 4.1-4.2a is there any way to
>make it so that users can't just hit ^C during the multiuser boot
>process to break into single-user mode?

we changed init so it asks for a passwd before continuing as root.
with no passwd, it will give the user a shell running as the
user 'solo' which we created as a normal user account.  from there
one can su if they want.



Newsgroups: comp.unix.ultrix
From: minnebo@vela.acs.oakland.edu (Brian P. Minnebo)
Subject: Re: Service Accounts running X login
Summary: or su
Organization: Oakland University, Rochester MI.
Date: Fri, 28 Aug 1992 14:33:30 GMT

In article <BtnzB3.49K@watcgl.uwaterloo.ca> idallen@watcgl.uwaterloo.ca (Ian! D. Allen [CGL]) writes:
|>> Are there any possibilities to control the actions of some special accounts
|>> after the X window login ?
|>
|>You can modify the .profile or .cshrc to be a "captive" account so that all
|>that you can do is perform a shutdown or exit.
|
|No you cannot.  A user logging in can hit BREAK at just the right
|point to cause the .profile or .cshrc to be skipped, allowing a normal
|unrestricted login shell.  Don't do this.

or worse, they can su to the account, which wont execute .profile.

Brian
-- 
Brian Minnebo                       (313) 370-4323
Senior Systems Programmer           minnebo@vela.acs.oakland.edu (Ultrix)
Oakland University, Rochester MI.   minnebo@argo.acs.oakland.edu (VMS)
From: iglesias@draco.acs.uci.edu (Mike Iglesias)
Subject: Re: problems with receiving mail
Newsgroups: comp.unix.ultrix
Organization: University of California, Irvine
Date: 29 Aug 92 04:52:18 GMT

In article <1992Aug27.211523.27998@bnlux1.bnl.gov> murphy@sscdaq.phy.bnl.gov (Michael Murphy) writes:
>(here sscdaq.phy.bnl.gov is the DECstation 5000.  bnlku2 is the machine
>from which the message was sent)
>
>><<< RCPT To:<murphy@sscdaq.phy.bnl.gov>
>><<< DATA
>>>>> HELO sscdaq.bnl.gov
>><<< 553 sscdaq.bnl.gov I refuse to talk to myself
>>554 <murphy@sscdaq.phy.bnl.gov>... Service unavailable: Bad file number

My guess here is that your system's official hostname used to be
sscdaq.bnl.gov and you've changed it to sscdaq.phy.bnl.gov.  Sendmail's
frozen config file, /etc/sendmail.fc, has the old hostname in it, so when
sendmail receives email for sscdaq.phy.bnl.gov, it doesn't realize that
it is for itself and tries to send it on.  When it opens an SMTP connection
to sscdaq.phy.bnl.gov, it opens it to itself, then realizes it has
done that and refuses to talk to itself.

To fix this, recreate the frozen config file via

  # /usr/lib/sendmail -bz

Then kill sendmail and restart it, or reboot the system.


Mike Iglesias                        Internet:    iglesias@draco.acs.uci.edu
University of California, Irvine     BITNET:      iglesias@uci
Office of Academic Computing         uucp:        ...!ucbvax!ucivax!iglesias
Distributed Computing Support        phone:       (714) 856-6926
Newsgroups: comp.unix.ultrix
From: murphy@sscdaq.phy.bnl.gov (Michael Murphy)
Subject: problems with receiving mail 
Organization: Brookhaven National Laboratory  Upton, NY
Date: Thu, 27 Aug 1992 21:15:23 GMT

Our DECstation 5000/200 was recently taken down to install memory and
increase swap space.  After rebuilding the kernel, we noticed that 
incoming mail gets bounced back while outgoing mail is allowed.  A
sample bounced message follows:

(here sscdaq.phy.bnl.gov is the DECstation 5000.  bnlku2 is the machine
from which the message was sent)


>From MAILER-DAEMON@sscdaq.bnl.gov  Thu Aug 27 16:58:48 1992
>Received: from sscdaq.phy.bnl.gov by bnlku2.phy.bnl.gov via SMTP (920330.SGI/9>20502.SGI.AUTO)
>	for murphy id AA02995; Thu, 27 Aug 92 16:58:48 -0400
>Received: by sscdaq.bnl.gov (5.57/Ultrix3.0-C)
>	id AA00547; Thu, 27 Aug 92 16:56:13 -0400
>Date: Thu, 27 Aug 92 16:56:13 -0400
>From: MAILER-DAEMON@sscdaq (Mail Delivery Subsystem)
>Subject: Returned mail: Service unavailable
>Message-Id: <9208272056.AA00547@sscdaq.bnl.gov>
>To: <murphy>

>   ----- Transcript of session follows -----
><<< RCPT To:<murphy@sscdaq.phy.bnl.gov>
><<< DATA
>>>> HELO sscdaq.bnl.gov
><<< 553 sscdaq.bnl.gov I refuse to talk to myself
>554 <murphy@sscdaq.phy.bnl.gov>... Service unavailable: Bad file number

>   ----- Unsent message follows -----
>Received: by sscdaq.bnl.gov (5.57/Ultrix3.0-C)
>	id AA00545; Thu, 27 Aug 92 16:56:13 -0400
>Received: by bnlku2.phy.bnl.gov (920330.SGI/920502.SGI.AUTO)
>	for murphy@sscdaq.phy.bnl.gov id AA02842; Thu, 27 Aug 92 16:58:11 -0400
>Date: Thu, 27 Aug 92 16:58:11 -0400
>From: murphy@bnlku2.phy.bnl.gov (Michael Murphy)
>Message-Id: <9208272058.AA02842@bnlku2.phy.bnl.gov>
>Apparently-To: murphy@sscdaq.phy.bnl.gov

>The quick brown fox jumps over the lazy dog.  


Does anyone have any ideas one what may be causing this?  Any help would
be greatly appreciated.  


Michael Murphy
murphy@bnlku2.phy.bnl.gov

(please don't send mail to sscdaq.phy.bnl.gov, because obviously it would
get bounced back :))
From: pjc@cc.ic.ac.uk (Peter Churchyard)
Newsgroups: comp.unix.ultrix
Subject: Re: E-Mail system recommendations needed
Date: 28 Aug 92 15:36:33 GMT
Organization: Imperial College


What sort of features? If you get Metemail, you can have multi-media
mail. I will be soon releasing the next version of my port of Elm to the
MSDOS which has Metamail and allows you to send voice messages and images
if you have a sound card in your PC.

Pete.
Newsgroups: comp.unix.ultrix
Subject: Re: Permissionb 
From: mccalld@vax.sonoma.edu
Date: 3 Sep 92 12:00:02 -0800
Organization: Sonoma State University

Greetings:
      re: permission denied
I've changed the permissions from 1,2,3,4,5,6,7,10, all the way to 7777
and run with set verbose.....
still '$ > filename' gives :Permission denied
and I'm still curious about what this is telling me.
dmc
From: nelson@asylum.UUCP (Russ Nelson)
Newsgroups: comp.unix.ultrix
Subject: gethostbyname fails to return an address but otherwise works
Date: 26 Aug 92 01:37:15 GMT
Reply-To: nelson@crynwr.com

I'm trying to install some software on an ultrix 4.1 system.
Gethostbyname is giving me some trouble.  It returns a non-null result
(therefore it worked), and it correctly returns aliases for a few
hosts that I know has them.  However, the h_addr_list pointer is NULL,
and h_addr points to garbage.

DEC support has been contacted, and they "corrected" a small test
program that I wrote to demonstrate the problem.  I've no doubt that
it works on their ultrix.  However, their program doesn't work on my
ultrix.

I've reached the limits of my ultrix expertise.  If I could only look at
the source, I could figure out what's wrong, but ultrix isn't a *real* Unix.
Then again, real Unix isn't *real* anymore.

Does anyone know if it's possible to configure an ultrix system so that
gethostbyname returns aliases but not addresses??  Thanks in Advance.

-- 
--russ <nelson@crynwr.com> I'm proud to be a humble Quaker.
Peace is not the absence of war.  Peace is the presence of a system for
resolving conflicts before war becomes necessary.  War never creates peace.
Newsgroups: comp.unix.ultrix
From: bird@sevior.physics.ubc.ca (Tony Ambardar)
Subject: last command
Summary: question about 'last'
Keywords: last
Organization: University of British Columbia, Vancouver, B.C., Canada
Distribution: na
Date: Thu, 3 Sep 1992 21:08:53 GMT

A few days ago I saw the following output from the 'last' command on our
DECstation:

gateway        ttyp0    some.other.internet.site      brieflogintime

The terminal in /etc/ttys is:

ttyp0      none      network

Can someone tell me what is going on? There is no real user 'gateway', so I
suspect this is some kind of pseudo-connection. Is it possible that someone
actually logged in, or started a shell? If so, under what UID would it be?
Thanks in advance for any help.
Newsgroups: comp.unix.ultrix
From: lytras@avalon.physik.unizh.ch (Lytras Apostolos)
Subject: gnu finger on ULTRIX
Organization: Informatik Club Uni Zurich
Date: Wed, 2 Sep 1992 15:41:23 GMT

Has anyone succeeded in getting this to run? I had the problem that
there seems to be no ualarm() in Ultrix 4.0 (or didn't I look hard
enough for it?). With changing ualarm to alarm and setting the Interval
to 1 sec (instead of 750 000 microsec), I can compile it alright, but it
does not work properly... any suggestions?

Thanks
- Apostolos


-- 
	 lytras@ifi.unizh.ch   		|   Apostolos Lytras
	 lytras@avalon.physik.unizh.ch	|   Informatik Club der Uni
	 lytras@amiga.physik.unizh.ch  	|   Zuerich, SysAdmin
Newsgroups: comp.unix.ultrix
From: john@iastate.edu (John Hascall)
Subject: Re: Syntax question for rc.local file
Organization: Iowa State University, Ames, IA
Date: Tue, 1 Sep 1992 14:50:44 GMT

In article <118021@muvms3.bitnet> rcbi110@muvms3.bitnet (R. ALAN MONROE) writes:
}Is this correct syntax?
}       /etc/routed add default 129.71.1.11 1 & echo 'routed'	
}                                              ^
}                                              |
}                                             Or should this
}                                             be a semicolon?

        /etc/route add default 129.71.1.11 1  &&  echo 'default route set'

Is probably what you want (the single '&' botch is woefully common).
Or a better scheme yet:

	echo -n " fubard"                                    > /dev/console
	/etc/fubard -x -y -z  ||   echo -n " BOTCHED! "      > /dev/console

I really hate it when /etc/rc is starting up all those deamons and it is just
sitting there:

	fubard bazifyd bogusd

and I have to remember what comes after bogusd (what is now starting up and
talking so long).

John
-- 
John Hascall                                       ``Live with it pink-boy!''
Project Vincent                                                              
Iowa State University Computation Center                     john@iastate.edu
Ames, IA  50011                                      515/294-9551 [fax -1717]
From: miles@aurs01.UUCP (Robert Miles)
Newsgroups: comp.unix.ultrix
Subject: Re: chsh, chfn for YP
Date: 28 Aug 92 01:29:35 GMT
Reply-To: miles@aurw7a.aur.alcatel.com.UUCP (Robert Miles)
Organization: Alcatel Network Systems, Raleigh NC

In article <19869@plains.NoDak.edu> grosen@isc.cs.ndsu.nodak.edu (Johannes Grosen) writes:
>We are using YP at our site (Ultrix 4.2a) but have noticed that the 'chsh'
>and 'chfn' commands do not work with YP. I haven't been able to find a
>'ypchsh' or 'ypchfn' anywhere. Can anyone offer a solution?
>
>-- 
>Johannes Grosen
>ISC Group System Administrator
>401E Minard Hall
>North Dakota State University
>(701) 237-8409

The following procedure seems to work here for chfn (haven't tried
chsh):

Do a remote login to the YP server and use chfn there.  Log off.  Wait
24 hours.  Log into the local machine again, and the change should be in
effect.

------------------------------------------------------------------------
Robert Miles    working for, but not speaking for, Alcatel Network
                Systems, in Raleigh, NC, USA
Internet:   miles%aurfs1%aurgate@mcnc.org
UUCP:       ...!mcnc!aurgate!aurfs1!miles

Untested Internet address that is likely to be faster than the one
given above if it works:
miles%aurfs1.aur.alcatel.com@rockdal.aud.alcatel.com
Newsgroups: comp.unix.ultrix
From: alan@nabeth.enet.dec.com (Alan Rollow - Alan's Home for Wayward Tumbleweeds.)
Subject: Re: 2Gig Rule??
Reply-To: alan@nabeth.enet.dec.com (Alan Rollow - Alan's Home for Wayward Tumbleweeds.)
Organization: Digital Equipment Corporation
Date: Mon, 31 Aug 1992 18:24:40 GMT


In article <1992Aug30.055157.1084@crc.ricoh.com>, shahryar@crc.ricoh.com (Shahryar G. Hashemi) writes:
>
> [ The customer asks for details about support of the Exabyte 8500. ]

This is what I know.  First consider the source of the 2 GB limitation.
Tape drives are devices.  All devices are files.  The current BYTE
offset within a given file is stored as a 32 bit signed integer.  If
the byte offset ever exceeds the capacity allowed by this 32 bit signed
integer some form of ENOSPC error is usually the result.

As a result you're limited to 2 GB per file/device.  I've never used
one of these, but I would think that if you could management not to
get an ENOSPC error up near the 2 GB range, you could put 2nd 2 GB
file on the media.  The problem is that applications that write tapes
will probably die or want to restart if they ever get an ENOSPC error.

Solution?  The SCSI CAM driver available with V4.2 has a way of
presenting a suitable lie to the file layer about the byte offset
for large tapes.  The result is that applications won't see these
errors until you really do reach the end of the media.  I believe
that some version of dump has been modified to know this is going
on.  I believe the V4.3 dump(8) will have this feature.
>
>Shahryar
>
>--
>Shahryar G. Hashemi
>System/Network Administrator -- RICOH Corporation California Research Center
>2882 Sand Hill Road, Suite 115         Telephone: (415) 496-5730
>Menlo Park, CA  94025-7022             FAX: (415) 854-8740
>E-Mail: <shahryar@crc.ricoh.com>
>
--
Alan Rollow				alan@nabeth.cxo.dec.com

Newsgroups: comp.unix.ultrix
From: lr@cs.brown.edu (Luigi Rizzo)
Subject: Audio device on Dec5000/25 ?
Organization: Brown University Department of Computer Science
Distribution: usa
Date: Fri, 28 Aug 1992 14:01:02 GMT


I noticed that Personal Dectsations 5000/25 (and probably other models
as well) have a connector for a telephone handset on the back.
Unfortunately, I couldn't find info on how to use it, nor the
appropriate device drivers.
	Do I need some kernel extension/nonstandard software (currently
running Ultrix 4.2a ), or there is a simpler solution ?

	Thanks for the help.
	Luigi
==================================================================
Luigi Rizzo                Brown University & Univ. di Pisa
e-mail: lr@cs.brown.edu, luigi@iet.unipi.it
==================================================================
From: hirai@cc.swarthmore.edu (Eiji Hirai)
Newsgroups: comp.unix.ultrix
Subject: Re: DEC lpr - Hmmm....?!
Date: 26 Aug 92 01:14:39 GMT
Organization: Swarthmore College Computing Center, Swarthmore, PA, USA

If you want ?roff to Postscript, you can try lprps, available at:

	ftp.uu.net:/usenet/comp.sources.misc/volume31/lprps.

--
Eiji Hirai <hirai@cc.swarthmore.edu>    :     :    :   :  : :: ::: :::: :::::
Unix Hacker for Swarthmore College      :     :    :   :  : :: ::: :::: :::::
Computing Center, Swarthmore, PA, USA.  Copyright 1992 by Eiji Hirai.
I don't speak for Swarthmore College.   All Rights Reserved.
Newsgroups: comp.unix.ultrix
Subject: Re: Problems with printing over lat
From: hal@kaos.declab.usu.edu (000200 Lynch)
Date: 4 Sep 92 09:35:44 MDT
Reply-To: hal@kaos.declab.usu.edu (000200 Lynch)
Distribution: world
Organization: Utah State University
Keywords: printing, lat

In article <1992Sep3.160601.14744@mother.bates.edu>, rob@mother.bates.edu (Rob Spellman) writes:

stuff deleted

|>
|>I have been trying to setup a print service over lat.  I can print
|>fine for a while, and then I get errors in /usr/adm/lpd3-err.  The error is:
|>
|>/usr/lib/lpd: test: cannot open /dev/tty17: Can't assign requested address
|>
|>Jobs keep piling up until I run lcp -h /dev/tty17 again.  Then it will run
|>for a while, and then start giving me errors again.
|>
|>Anybody seen this problem, and how do I fix it?
|>
|>I'm running Ultrix 4.2a on a Decstation 5000/240.
 more stuff deleted

I am having the same problem on my DS500/200 running 4.2.  I am using
ln03rof as my filter talking to an Apple laserwriter.  Software support
has no solution as yet and neither do I.  What I am doing is running the
following shell script from crontab every minute?! AAAAARRRRRGGGGGGGHHHHHHH

#! /bin/sh
doit=0
/etc/lpc status lw_seer >	/tmp/lw_seer.status
/usr/ucb/grep -s 'no entries' <	/tmp/lw_seer.status
if test $? -eq 0 ; then
	exit 0
fi
/usr/ucb/grep -s 'offline' <	/tmp/lw_seer.status
if test $? -eq 0 ; then
	doit=1
fi
/usr/ucb/grep -s 'no daemon' <	/tmp/lw_seer.status
if test $? -eq 0 ; then
	doit=1
fi
if test $doit -eq 1 ; then
	(echo -n "lw_seer restarted @ " ; date)	>> /usu/adm/nite/lw_seer.log
	/etc/lcp -p /dev/tty07			>> /usu/adm/nite/lw_seer.log
	/etc/lcp -h /dev/tty07:TERM04:PORT_14	>> /usu/adm/nite/lw_seer.log
	/etc/lpc restart lw_seer		>> /usu/adm/nite/lw_seer.log
fi

This is a lot like burning the house down to get rid of the termites, but it
works.

|>-- 
|>Rob Spellman
|>rob@mother.bates.edu
|>Computing Support Services
|>Bates College
|>
--
Hal Lynch
	Internet: Hal@cache.declab.usu.edu
	DECnet:   USU::HAL
From: alan@nabeth.enet.dec.com (Alan Rollow - Alan's Home for Wayward Tumbleweeds.)
Newsgroups: comp.unix.ultrix
Subject: Re: What happened to p_swaddr?
Date: 2 Sep 92 17:38:18 GMT
Reply-To: alan@nabeth.enet.dec.com (Alan Rollow - Alan's Home for Wayward Tumbleweeds.)
Organization: Digital Equipment Corporation


In article <BtxI6v.3CG@cs.psu.edu>, kenh@leps5.phys.psu.edu (Ken Hornstein) writes:
>
>Lately I've been trying to compile sps, top, ofiles, lsof .... with very little
>success on our Ultrix 4.0 system.

You want to look around on gatekeeper.dec.com to see there are V4 versions
of any of these programs.  Monitor (pub/DEC/monitor.tar.Z) has V4 algorithms
for reading the user structure when it's swapped.

> [ Description of how p_swaddr was removed and a bunch of dmap structures
>   added. ]

If you look closely at the proc structure you'll see that the field
added are all addresses of dmap structures.  The dmap structure will
probably be defined in /usr/include/sys/dmap.h.  I don't much about
the details of it though.  The different dmap structures are:

	p_dmap - Disk map for data segment
	p_smap - Disk map for stack segment
	p_cdmap - Shadows for data/stack swap
	p_csmap - used during fork/exec

Since the user structure lives at one end of the stack, the disk
map for the stack will describe where the stack is and therefore
where the user structure is.  So as not to leave the details as
an exercise to the reader, I borrow the following segment from
Monitor.

	struct dmap l_dmap ;

	if( Process is swapped... ) {
		readk(proc.p_smap, (char *)&l_dmap, sizeof(struct dmap)) ;

		readk(l_dmap.dm_ptdaddr, (char *)&ublkno, sizeof(int)) ;

		addr = dtob(ublkno) ;

		reads(addr, (char *)&user, sizeof(struct user)) ;
	}

The Monitor function readk read from /dev/kmem.  The first argument is
the kernel address, the 2nd the data address and the 3rd the data length.
The reads function reads from /dev/drum.

>--Ken
>
--
Alan Rollow				alan@nabeth.cxo.dec.com
From: vulture@carrion.cc.ic.ac.uk (Thomas Sippel - Dau)
Newsgroups: comp.unix.ultrix
Subject: Re: Service Accounts running X login
Date: 27 Aug 92 13:54:14 GMT
Reply-To: cmaae47@cc.ic.ac.uk
Organization: Imperial College of Science, Technology and Medicine

In article <1992Aug25.152709.23868@rz.uni-karlsruhe.de>, chris@rz.uni-karlsruhe.de (Christian Finger) writes:

 -- Are there any possibilities to control the actions of some special accounts
 -- after the X window login ?

Yes, you have to hack the XDM session startup scripts and test for the 
specific user names.

 -- Btw, is it possible for an user logged into the console in character mode
 -- to start an X window enviroment ? Someting like startx ?

Yes, but it is a real pain, as on the DECstation (ours at least) Xws will
not run under user's uid, so you have to write an suid wrapper for it.

I know this does not help much.                Thomas

-- 
*** This is the operative statement, all previous statements are inoperative.
*   email: cmaae47 @ cc.ic.ac.uk (Thomas Sippel - Dau) (uk.ac.ic.cc on Janet)
*   voice: +44 71 589 5111 x4937 or 4934 (day), or +44 71 823 9497 (fax)
*   snail: Imperial College of Science, Technology and Medicine
*   The Center for Computing Services, Kensington SW7 2BX, Great Britain