Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!eecae!cps3xx!rang
From: rang@cpsin3.cps.msu.edu (Anton Rang)
Newsgroups: news.sysadmin
Subject: Re: Crashing your own machine
Message-ID: <1051@cps3xx.UUCP>
Date: 11 Nov 88 18:26:14 GMT
References: <22401@cornell.UUCP> <2210005@acf3.NYU.EDU> <16845@agate.BERKELEY.EDU>
Sender: usenet@cps3xx.UUCP
Reply-To: rang@cpswh.cps.msu.edu (Anton Rang)
Organization: Michigan State University, Computer Science Dept.
Lines: 21
In-reply-to: weemba@garnet.berkeley.edu's message of 11 Nov 88 09:25:12 GMT

In article <16845@agate.BERKELEY.EDU>, weemba writes:
>In article <2210005@acf3.NYU.EDU>, rosenblg@acf3 (Gary J. Rosenblum) writes:
>>On another note, today I found a student running this wonderful
>>little ditty, which he named oddly enough virus.c:

>>	main() { while (1) fork (); }

>>and he effectively halted a small vax (11/750).

>What's the point?  This is all internal to one machine, and the idea
>presumably is that every site polices its own users.  Colleges toler-
>ate nonsense more than companies, and the users know it.

  Something else to be noted here is that many implementations of UNIX
allow this to be restricted (under SunOS, by setting MAXUPRC in the
kernel).  Disk and process quotas are there for a reason: use them!

+---------------------------+------------------------+----------------------+
| Anton Rang (grad student) | "UNIX: Just Say No!"   | "Do worry...be SAD!" |
| Michigan State University | rang@cpswh.cps.msu.edu |                      |
+---------------------------+------------------------+----------------------+