HDTenEightyP/NetNews huggingface dataset:
From: fwp@CC.MsState.Edu (Frank Peters)
Subject: Re: Bringing a Sun to it's knees
Organization: Computing Center, Mississippi State University
Date: Mon, 25 Jan 1993 22:10:22 GMT

In article <T6AXBYAV@cc.swarthmore.edu> eoliver@ralph.cs.haverford.edu (Erik Oliver) says:
: During our Operating Systems class, we were being asked to see for
: ourselves that "modern" operating systems place limits on the number of
: processes an individual user can run thus preventing over load.

Interesting.  Who came up with that theory?  It isn't true and in many
cases it isn't desirable.

: Unfortunately, the following simple C program:

   [ standard infinite loop fork program deleted ]

: Brought our Sun4 running SunOS 4.1.2 to its knees by using up _all_ the
: available processes and thus preventing vfork from executing, even
: typing ls from an already open shell was impossible.
: 
: We are thinking of ways to prevent this from happening again, any
: suggestions?

If you look in /sys/conf.common/param.c you will see that MAXUPRC (the
number of processes per user) is set to 5 less than the total number of
processes available.  Keeping in mind that the overwhelming number of
Suns are single user-at-a-time desktop workstations this makes sense.
You don't want a single user workstation holding back a bunch of
process slots for other users that aren't going to be there.

You can prevent this, of course, by modifying param.c to set MAXUPRC to
something more conservative.  Thats what we do on our multiuser
systems.  Exactly what to set it to depends upon your usage patterns of
course.
--
Frank Peters  -  UNIX Systems Programmer  -  Mississippi State University
Internet: fwp@CC.MsState.Edu  -  Phone: (601)325-7030  -  FAX: (601)325-8921
From: guy@Auspex.COM (Guy Harris)
Newsgroups: comp.sys.sun.admin
Subject: Re: / and /usr on separate disks in 4.1.3?
Date: 22 Jan 93 07:23:28 GMT
Organization: Auspex Systems, Santa Clara

>Most / file systems are fairly small unless you need a lot of room
>for spooling.

And, if you do need a lot of room for spooling, you can put "/var" on
its own file system.
Newsgroups: comp.sys.sun.admin,comp.sys.sun.apps,comp.sys.sun.hardware,comp.sys.sun.misc,comp.sys.sun.wanted
From: pushp@nic.cerf.net (Pushpendra Mohta)
Newsgroups: comp.sys.sun.admin
Subject: Re: Log out idle users? - et. al.
Date: 27 Jan 1993 03:47:45 GMT
Organization: CERFnet
NNTP-Posting-Host: nic.cerf.net

In article <1993Jan26.112342.10180@iscsvax.uni.edu> venenga@iscsvax.uni.edu writes:
>Sun Admins:
>
>    We just recently acquired a new SUN SS10 running Solaris 2.1.  I have
>been porting software from my old AT&T 3B2's, but I am in need of a good
>idle user logout program.  I looked at the FAQ, but didn't see anything in
>there.  Does anybody have a program of this sort that they would be willing
>to let me use?  E-mail or post is fine.  Thanks for any help.
>

I use a program called untamo that works reasonable well.

Use archie to find a site nearest to you.
One version is archived on my machine 
nic.cerf.net:pub/software/unix/sysadmin/untamo.tar.Z

It needs one more program ( I forget which ) that is also archived
in the same place.


Pushpendra Mohta                pushp@cerf.net          +1 619 455 3900
Director of Engineering         pushp@sdsc.bitnet       +1 800 876 2373
CERFNet                                                 +1 619 455 3990 (FAX)	

Newsgroups: comp.sys.sun.admin
From: emike@sdc.com (E. Mike Durbin)
Subject: Re: Sun Solaris 1.x on new Sun Classic
Organization: Systems Development Corporation
Date: Tue, 26 Jan 1993 15:24:25 GMT

In article <446@ftms.UUCP> brown@ftms.UUCP (Vidiot) writes:
>Management has decreed that these two platforms WILL not run 4.1.x, ever.
>
>Guess what, we aren't buying those machines or suggesting that our customers
>get them.


Hey!  Maybe I could get a list of your customers and then *I* could
sell SPARCclassics and LXs to them!!!  :->

-- 
			E. Mike Durbin
Systems Development Corp.		Open Business Systems, Inc.
emike@sdc.com				emike@obs.com
From: matso@dtek.chalmers.se (Mats Olsson)
Newsgroups: comp.sys.sun.admin
Subject: Re: Sun Solaris 1.x on new Sun Classic
Date: 27 Jan 93 04:16:53 GMT
Organization: Chalmers University Of Technology

In article <1993Jan25.002556.10832@eskimo.com> nanook@eskimo.com (Robert Dinse) writes:
>In article <1ji0gvINNc90@gap.caltech.edu>, jack@ccsf.caltech.edu (Jack Stewart) writes:
>
>     It has definitely cost them some sales.  We need more workstations and
>didn't want to spend big dollars on the more expensive IPX.  The Classic looked
>like a great alternative, until I found out it could not run Solaris 1.X.

    Yes, this is exactly my situation. We deferred our planned buy of
workstations as the rumors sounded interresting. After we found that they
would only run 2.x, we didn't buy them.
    We will transfer to 2.x, but only for x >= 3 or something, when the bugs
are out.

>     It amazes me how companies become arrogant and try to drive the market
>when they get large rather than remaining market driven.

    Amen to that. Is there no way of keeping small, nice companies with
excellent products from growing?

    /Mats
--
  Chalmers  | USENET: matso@dtek.chalmers.se   | "The supreme irony of life is
 University | SNAIL:  Mats Olsson              | that hardly anyone gets out of
     of     |         Richertsgatan2E/5023     | it alive." 
 Technology |         412 81 Gothenburg SWEDEN |                   - Job, R.A.H
Newsgroups: comp.sys.sun.admin
From: carl@montebello.ecom.unimelb.EDU.AU (Carl Brewer)
Subject: Printer logging in /etc/printcap (SunOS 4.1.2)
Organization: Computer Science, University of Melbourne, Australia
Date: Wed, 27 Jan 1993 16:37:06 GMT


es anyone have any experience with printer logging (using af=/<log_fil>
in /etc/printcap) ?

I've got a remote mounted printer, and can hget no logging 
with the af set on both machines,  in fact, even the local printer
refuses to log, the log files exist, and are set rw-rw-rw- so I canbnot
see that the permissions could be in error.

If anyone has any experience please email a brief hint  :)


thankyou

carl




-- 
 Annal  Natrach, Usthvah Spethed,         carl@ecr.mu.oz.au (IRC: Bleve)
 Dochoel Dienve                           carl@munagin.ee.mu.oz.au
					  carl@montebello.ecom.unimelb.EDU.AU
 Merlin, where are you?  Call your dragon, to weave a mist...
From: danba@pogo.wv.tek.com (dan balza)
Newsgroups: comp.sys.sun.admin
Subject: What files are being NFS mounted?
Date: 25 Jan 93 17:17:09 GMT
Organization: Tektronix, Inc. Wilsonville

I need to determine what files from an NFS auto-mounted
file system are being accessed.  The problem is that there
always seems to be one file system auto-mounted, even with
no one logged in (rsh host df).  I got a copy of a program
called ofiles, but can't get it running.  Is there any other
public domain program that will give me this info?

I'm running a SS2 with 4.1.2.

Thanks,

Dan Balza
Tektronix
From: jgp@ee.rochester.edu (Jim Prescott)
Newsgroups: comp.sys.sun.admin
Subject: Re: Bringing a Sun to it's knees
Summary: MAXUPRC can be useful but Sun's default value never is
Date: 26 Jan 93 18:20:30 GMT
Organization: Univ of Rochester, College of Engineering and Applied Science

In <1993Jan25.221022.28758@ra.msstate.edu> fwp@CC.MsState.Edu (Frank Peters):
>If you look in /sys/conf.common/param.c you will see that MAXUPRC (the
>number of processes per user) is set to 5 less than the total number of
>processes available.  Keeping in mind that the overwhelming number of
>Suns are single user-at-a-time desktop workstations this makes sense.

Of course since the overwhelming majority of Suns have more than 5 system
processes the default value of MAXUPRC is pretty useless.  Even on a
single user workstation MAXUPRC should be low enough that the user doesn't
interfere with normal system operation.

A related limitation that probably applies to Suns is that only root can
allocate the last process slot.  This is to allow root a chance of cleaning
up after runaway processes without rebooting.  In many cases such a cleanup
would be much easier if root had a few more dedicated slots (like maybe 5 :-).
-- 
Jim Prescott - Systems Staff	jgp@ee.rochester.edu	rutgers!ur-valhalla!jgp
College of Engineering and Applied Science, University of Rochester, NY
Newsgroups: comp.sys.sun.admin
From: pwh@bradley.bradley.edu (Pete Hartman)
Subject: Re: Bringing a Sun to it's knees
Organization: Bradley University
Distribution: usa
Date: Tue, 26 Jan 93 16:33:08 GMT

In <1993Jan25.221022.28758@ra.msstate.edu> fwp@CC.MsState.Edu (Frank Peters) writes:
>If you look in /sys/conf.common/param.c you will see that MAXUPRC (the
>number of processes per user) is set to 5 less than the total number of
>processes available.  Keeping in mind that the overwhelming number of
>Suns are single user-at-a-time desktop workstations this makes sense.
>You don't want a single user workstation holding back a bunch of
>process slots for other users that aren't going to be there.
>
>You can prevent this, of course, by modifying param.c to set MAXUPRC to
>something more conservative.  Thats what we do on our multiuser
>systems.  Exactly what to set it to depends upon your usage patterns of
>course.

Of course, if you use up all the memory, you still get the same
symptom, so even if you set MAXUPRC to nusers/2 or some such
you run into the same problem if some program allocates memory
out the wazoo.

Any pointers to where I can limit MAXUMEM?
-- 
Pete Hartman		       Bradley University	pwh@bradley.bradley.edu
 For every mad scientist who's had a convenient thunderstorm just on the night
 his Great Work is finished and lying on the slab, there have been dozens whove
 sat around aimlesly under the peaceful stars while Igor clocks up the overtime
From: kev@hpcpbla.bri.hp.com (Kevin Jones)
Date: Fri, 22 Jan 1993 07:09:41 GMT
Subject: Re: LOTS of Questions ...
Organization: HP Computer Peripherals Bristol, UK
Newsgroups: comp.sys.sun.admin

> Same Question: How much Power gets used?
> (Suppose a HP 35480 A Drive in a Desktop Box,
> both Standby and running)

The drive itself uses 25W maximum. More likely to be 
in the 15W region operating and 10W quiescent. 
The "desktop box" is likely to waste quite a lot in 
voltage regulation + fan (if its got one) so I would
guestimate at 50W.


-----------------------------------------------------------------
Kevin Jones.                       | Hewlett Packard Ltd,
                                   | Computer Peripherals Bristol,
kev%hpcpbla@hplb.hpl.hp.com        | Filton Road,
                                   | Stoke Gifford,
Tel: 011 44 272 228351             | Bristol.   BS12 6QZ.
                                   | ENGLAND.
-----------------------------------------------------------------

This response does not represent the official position of, or
statement by, the Hewlett-Packard Company.  The above data is
provided for informational purposes only. It is supplied
without warranty of any kind.
From: katz@elements.rpal.rockwell.com (Morry Katz)
Newsgroups: comp.sys.sun.admin
Subject: Re: Tape Drive Lock-Up
Date: 25 Jan 93 11:10:12
Organization: Rockwell International Palo Alto Lab
Reply-To: katz@rpal.rockwell.com
NNTP-Posting-Host: carbon.rpal.rockwell.com
In-reply-to: nanook@eskimo.com's message of Sun, 24 Jan 1993 21:47:58 GMT

In article <1993Jan24.214758.5393@eskimo.com> nanook@eskimo.com (Robert Dinse) writes:
> 
> 
>      This question pertains to a Sun 3/280 running Sun/OS 4.1.1_U1 and using
> a 9-track 6250 bpi tape drive.
> 
>      When I use dump to write a disk partition to tape, occasionally I will
> get the following sequence of errors:
> 
> xt0: timeout interrupt
> xtintr: XTE_TIMEOUT reset failed, err= 0x9
> xt0: hard error bn=0 er=0x40
> xtwrt_eom:failed in writing EOM 1.
> 
>      Once this happens the drive is hung.  Nothing short of a reboot seems to
> be able to clear it.  Everything I try comes back device busy.  If I try:
> 
> 	mt offline
> 
>      It comes back and says device busy.  Powering the drive off and on
> doesn't fix it either.  Once it's hosed, tar, cpio, anything else will say
> device busy.  However the initial error that gets it in this state only
> occurs when using dump.
> 
>      I have had similiar problems using dump with 8mm 5GB drive on a 4/670
> (external) and SUN/OS 4.1.3, but power cycling the drive without taking the
> entire server down seems to fix it.
> 
>      Anybody got any idea what's wrong?  Is there a fixed version of dump
> available that won't hang the drive?
> 
I believe that there is abug in the SCSI drivers for 4.x.  I reported
this bug to Sun about 1 year ago.  They supposedly spent long periods
of time trying to track down the bug and could never find the source.
I continue to suspect that the driver contains some state info that is
not getting reset properly after certain errors are detected.
--
------------------------------------------------------
Morry Katz
Rockwell Science Center
administrator@rpal.rockwell.com (machine administration issues)
katz@rpal.rockwell.com (other)
------------------------------------------------------
Newsgroups: comp.sys.sun.admin
From: lfini@sisifo (Luca Fini)
Subject: How to find an Internet address
Organization: Osservatorio di Arcetri
X-Newsreader: TIN [version 1.1 PL6]
Date: Fri, 22 Jan 1993 14:44:47 GMT

Maybe this is not the right newsgroup, anyway ....

Problem: I want to telnet to some  cpu on the network, but I don't 
remember exactly the node name. I vaguely remeber it is at the
Astronomical observatory of Torino. So I'd like to ask to a nameserver
in Torino a list of the domains it knows (I could then argue from the
domain name which is the one I'm looking for: it should be named "astro"
or something like it). Saying it in different words I'd like to browse
the list of domain names known to some nameserver. When I've got the domain 
name I can use nslookup to query for host names, but until I have the
domain name available nslookup will not accept a query (or else I wasn't 
able to convince it to give me that information).

Is there anybody around who knows how to do that??
+------------------------------------------------------------------------+
| Luca Fini                                                              |
| Osservatorio Astrofisico di Arcetri     Tel.   +55 2752 253            |
| L.go E.Fermi, 5                         Fax.:  +55 220039              |
| 50125 Firenze                           e-mail: lfini@arcetri.astro.it |
| Italia                                                                 |
+------------------------------------------------------------------------+
From: pen@lysator.liu.se (Peter Eriksson)
Newsgroups: comp.sys.sun.admin
Subject: Solaris 2.1 NFS weirdness
Date: 24 Jan 93 23:30:06 GMT
Organization: Lysator ACS at Linkoping University

We're having severe problems getting our SS1+ that runs Solaris 2.1
to NFS mount filesystems from a HP9K3?? running HP-UX 8.0 and a
Pyramid 90x running dualPort OSx 4.1. The error we get from our
SS1+ when trying to NFS mount anything from these machines is:

 "...RPC: Authentication error; why = Invalid client credential"

Has anyone else seen this and have any suggestion how to fix this?

(We can't upgrade the OS on the HP9K3?? since HP-UX 8.0 was the
last for that machine, we might be able to upgrade the OS on the
Pyramid but it would be much better if one could fix this problem
at the Solaris end :-)

/Peter
--
Peter Eriksson                                              pen@lysator.liu.se
Lysator Academic Computer Society                 ...!uunet!lysator.liu.se!pen
University of Linkoping, Sweden                I'm still bored. Flame me again.
Newsgroups: comp.sys.sun.admin
From: lfini@sisifo (Luca Fini)
Subject: HP DAT on a SparcStation
Organization: Osservatorio di Arcetri
X-Newsreader: TIN [version 1.1 PL6]
Date: Fri, 22 Jan 1993 08:41:13 GMT


I've problems installing an HP 4mm DAT on a SparcStation 1+.
DAT data have been included in the kernel as needed
Here follows a part of the messages at boot time: the scsi Target 3
(disk sd0) has been included because it's referenced later, the DAT 
is scsi Target 5 as shown below.

--------------------
Jan 21 12:26:07 euterpe vmunix: esp0:	Target 3 now Synchronous at 4.167 mb/s max transmit rate
Jan 21 12:26:07 euterpe vmunix: sd0 at esp0 target 3 lun 0
Jan 21 12:26:07 euterpe vmunix: sd0: <p cyl 1626 alt 2 hd 15 sec 53>
  ......
Jan 21 12:26:07 euterpe vmunix: esp0:	Target 5 now Synchronous at 5.0 mb/s max transmit rate
Jan 21 12:26:07 euterpe vmunix: st1 at esp0 target 5 lun 0
Jan 21 12:26:07 euterpe vmunix: st1: <HP-354XXA 4mm DAT>
--------------------

The scsi chain also includes a QIC-150 tape as st0 not shown above. 
First strange behaviour: Target 5 is "Synchronous", something I expected 
from disks and not from tapes (the QIC-150 is not declared as Synchronous).

At bootstrap time the DAT was switched off.

Now exactly when I switch on the DAT I get the following 
messages on the console:

---------------------
Jan 22 08:54:26 euterpe vmunix: esp0: unexpected SCSI bus reset
Jan 22 08:54:26 euterpe vmunix: esp0:	Target 3 now Synchronous at 4.167 mb/s max transmit rate
Jan 22 08:54:27 euterpe vmunix: esp0: unexpected SCSI bus reset
Jan 22 08:54:27 euterpe vmunix: esp0:	Target 3 now Synchronous at 4.167 mb/s max transmit rate
Jan 22 08:54:27 euterpe vmunix: esp0: unexpected SCSI bus reset
Jan 22 08:54:27 euterpe vmunix: esp0:	Target 3 now Synchronous at 4.167 mb/s max transmit rate
Jan 22 08:54:27 euterpe vmunix: esp0: unexpected SCSI bus reset
Jan 22 08:54:27 euterpe vmunix: esp0:	Target 3 now Synchronous at 4.167 mb/s max transmit rate
Jan 22 08:54:30 euterpe vmunix: esp0: unexpected SCSI bus reset
Jan 22 08:54:30 euterpe vmunix: esp0:	Target 3 now Synchronous at 4.167 mb/s max transmit rate
---------------------

And whenever I try to do something on the DAT tape, I get the following:

---------------------
mt -f /dev/rst1 status
/dev/rst1: no tape loaded or drive offline
---------------------

Note: the tape *IS* loaded and drive lamps show "online" :->

I'd appreciate very much if somebody can help me.

+------------------------------------------------------------------------+
| Luca Fini                                                              |
| Osservatorio Astrofisico di Arcetri     Tel.   +55 2752 253            |
| L.go E.Fermi, 5                         Fax.:  +55 220039              |
| 50125 Firenze                           e-mail: lfini@arcetri.astro.it |
| Italia                                                                 |
+------------------------------------------------------------------------+
From: wow@cup.portal.com (wallace otis waggoner)
Newsgroups: comp.sys.sun.admin
Subject: Problems w/Sun
Date: Fri, 22 Jan 93 04:03:09 PST
Organization: The Portal System (TM)
Distribution: world

	The solution to any problem is competition.  There are Sparc alternat
to Sun.  We are looking into these alternatives.  Configured to the individua
purchasers needs and not to suit the manufacter.  If interested in these acon

Wally Waggoner
From: simon@lia.di.epfl.ch (Simon Leinen)
Newsgroups: comp.sys.sun.admin
Subject: Re: Both, Motif and Openwin on a SPARC 2 ?
Date: 26 Jan 93 11:04:33 GMT
	<1jvrheINN52o@early-bird.think.com> <C1FCJ1.5Iz@siemens.com>
Organization: Ecole Polytechnique Federale de Lausanne
In-reply-to: aad@siemens.com's message of 25 Jan 93 19:23:24 GMT
X-Md4-Signature: 952b6300400ddcc6cc2d52a8a5b16372

In article <C1FCJ1.5Iz@siemens.com> aad@siemens.com (Anthony A. Datri)
writes:

   [...] IMHO, a product is broken if it requires that a window
   manager be running at all.

   Sun's XView clients seem to be consistent offenders.  The ones that
   I've seen lack a quit button.

Why do you think this is a problem? Purists who don't run a window
manager should terminate their applications using "kill" or Control-C.

XView applications all participate in the WM_DELETE_WINDOW protocol,
so I can quit them by sending them a "delete" message, for example by
typing "Hyper-C" to my window manager (tvtwm).

I consider quit buttons a waste of space. :-)
-- 
Simon.
Newsgroups: comp.sys.sun.admin
From: elling@eng.auburn.edu (Richard Elling)
Subject: Re: Security checker
Reply-To: elling@eng.auburn.edu
Organization: Auburn University Engineering
Date: Fri, 22 Jan 1993 22:05:22 GMT

In article ICM@melpar, brian@e-sys.com (Brian D. Decker) writes:
>In article 7343@ugle.unit.no, olafn@inbit.ibt.unit.no (Olaf F. Normann) writes:
>>Hello netters!
>>
>>I wander if it exists any program or script which searches the filesystems
>> for security "holes" (right owner of system files etc)
>>
>> Best regards 
>> -olaf F. Normann
>
>Yes, COPS (Computer Oracle and Password System) is available via anon ftp from
>cert.sei.cmu.edu(128.237.253.5) in /pub/cops as cops.tar.Z.  According to the
>documentation, "COPS is a static security checking tool that checks common 
>procedural (non-bug) problems of a Un*x system.  It basically takes a snapshot
>of a system, and then generates a report of it's findings."

Also ASET, which is like COPS, is bundled in Solaris 2.1.

---
 Richard Elling                          Manager of Network Support
 Auburn University                       Engineering Administration
 richard.elling@eng.auburn.edu   KB4HB [44.100.0.72]  (205)844-2280
 Type-5 keyboard survival: xmodmap -e "keysym BackSpace = Delete"

Newsgroups: comp.sys.sun.admin,comp.sys.sun.hardware,comp.sys.hp
From: mihelcic@itd.nrl.navy.mil (Dave Mihelcic)
Subject: Interfacing HP C1503C 4 mm DAT to SPARC2
Organization: Naval Research Laboratory
Date: Thu, 21 Jan 1993 20:34:44 GMT

				Thanks,
Newsgroups: comp.sys.sun.admin,comp.sys.sun.hardware
From: aad@siemens.com (Anthony A. Datri)
Subject: Re: parity errors for sparcstation 1
Organization: Siemens Corporate Research, Princeton (Plainsboro), NJ
Date: Wed, 27 Jan 1993 00:36:58 GMT

>assume this gives me the needed information on which SIMM is bad, but I don't
>know how to  "U589" to an actual SIMM on the board.

It is an industry-wide convention that locations on boards are U<number>.  You
should find U589 screened on the board next to the socket.


-- 

======================================================================8--<