🚀 go-pugleaf

In article <252@chip.UUCP> mparker@chip.UUCP (M. D. Parker) writes:
>Under the current System V R3 flavor of operating system I am using,
>our ULIMIT is gened up to max value.  

Oh you lucky sod!  This is how it *should* be - makes everything else
so simple...

>In otherwords, there is no restriction.
>While I like that approach, I do want to limit the value locally since we
>have had an occaion where one person ran us out of user disk space.  My
>preference is to change this in the kernel.  Initial examinations of what
>I have received do not point to which parameter to change.  Anybody know?

>Yes, I do know that I could put a wrapper around /etc/init to do this but
>I'd really like to at least know about the kernel modification.

Remember that you can adjust the ulimit *down* without root privilege...

Put in your /etc/profile:

if [ $LOGNAME = <users you wish to restrict> ]
then
    ulimit <whatever you wish - as long as it's *downwards*>
fi

Or, get fancy and do something like:

	ul=`sed -n -e '/^$LOGNAME[ <tab>]/s/^.*[ <tab>][ <tab>]*//p' 
	    /etc/ulimitsperuser`
	if [ -n "$ul" ]
	then
	    ulimit $ul
	fi
[/etc/ulimitsperuser consists of tab separated username, ulimit value
pairs, one pair per line]

remember: 
	- the user's shell runs /etc/profile and any shell settings/
	  ulimit etc persist for that user.
	- *any* user can lower ulimit for themselves, but only root can 
	  raise it

[Aside: it's too bad in a way that the shell you get doesn't run effective
id == 0 during execution of /etc/profile, and undoes this just before
executing your personal profile - would make upping ulimit or other similar
things easy to do on a per-user basis, though it would require some 
co-operation from /etc/login and probably an explicit shell builtin to change
the effective userid back to the real]
-- 
Chris Lewis, R.H. Lathwell & Associates: Elegant Communications Inc.
UUCP: {uunet!mnetor, utcsri!utzoo}!lsuc!eci386!clewis
Phone: (416)-595-5425

In article <252@chip.UUCP> mparker@chip.UUCP (M. D. Parker) writes:
>While I like that approach, I do want to limit the value locally since we
>have had an occaion where one person ran us out of user disk space.

Set ulimit by a command in /etc/profile.

In article <252@chip.UUCP>, mparker@chip.UUCP (M. D. Parker) writes:
> Under the current System V R3 flavor of operating system I am using,
> our ULIMIT is gened up to max value.  In otherwords, there is no restriction.


    In the case of Microport V/386 the kernel is directly patchable to
  whatever ULIMIT you like. I looked through the linkkit and couldn't
  find any references to ulimit so perhaps "patch" is the only way.
  In any event, a "patch" program comes with the distribution and you
  simply invoke it with:

        /etc/patch /unix Ulimit xxxx  (where xxxx is the number of
              				blocks)

    You then simply reboot and you have the new limit.


					John



-- 
John Gayman, WA3WBU              |           UUCP: uunet!wa3wbu!john
1869 Valley Rd.                  |           ARPA: john@wa3wbu.uu.net 
Marysville, PA 17053             |           Packet: WA3WBU @ AK3P