home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.unix.questions:9286 comp.unix.programmer:3845
- Newsgroups: comp.unix.questions,comp.unix.programmer
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!jvnc.net!princeton!phoenix.Princeton.EDU!spencer
- From: spencer@phoenix.Princeton.EDU (S. Spencer Sun)
- Subject: Re: Making ``.plan'' EXECUTE a Program ???
- Message-ID: <1992Jul22.150239.28282@Princeton.EDU>
- Sender: news@Princeton.EDU (USENET News System)
- Nntp-Posting-Host: phoenix.princeton.edu
- Reply-To: spencer@phoenix.princeton.edu (S. Spencer Sun)
- Organization: Live Organ Transplants
- References: <1992Jul22.062254.21368@Princeton.EDU> <1992Jul22.124403.18751@math.waterloo.edu>
- Date: Wed, 22 Jul 1992 15:02:39 GMT
- Lines: 44
-
- In article <1992Jul22.124403.18751@math.waterloo.edu>, cpshelle@neumann.waterloo.edu (cameron shelley) writes:
- >
- >I have a piped .plan file, and a cron job that wakes up every morning
- >to restart it if it's busted.
-
- Great, but meanwhile finger will just sit there waiting any time someone
- fingers you.
-
- >It *is* in the "unix-faq" file, question 9. Check out "news.answers"
- >for a copy (anyone who wants it that is). There was a program to
- >construct a named pipe .plan posted in alt.sources a while back, so
- >check out the archive in wuarchive.wustl.edu (or elsewhere) for
- >article "4618.Z". I don't have the source so please don't ask me for
- >it...
-
- I thought it was slightly different from the question in the FAQ (by the
- way, it's question 4.9...)
-
- While the FAQ mentions that "If someone fingers you remotely it will be
- a lot harder to figure out who it is" I don't think it addresses the
- "What happens if your writer process dies" issue, or "What happens if
- someone fingers you directly on a machine that mounts your home
- directory"... in my experience, named pipes don't like to work too well
- across NFS (SunOS 4.1.x). We have lots of machines where your home
- directory is the same directory on the same filesystem on all machines,
- and if you cat into a named pipe on one machine and cat from it on
- another machine, both processes just hang.
-
- So, if the writer process is on machine 'foo' and I'm logged in to 'bar'
- and I finger user@bar, it's going to hang.
-
- None of which deals with the underlying question of motivation. With
- all due respect, I think there's an element of ego involved, "Aren't I
- clever to have figured out that you fingered me" or else it's
- paranoia, "Gosh, people could be fingering me AND I WON'T EVEN KNOW IT!"
- What's so important about knowing who fingered you?
-
- ----------- The opinions expressed in this article are solely mine. -----------
- <Insert lame attempt at disclaimer humor>
- sss/PU'94 Dept of CS (spencer@phoenix.princeton.edu)/JvNCnet (spencer@jvnc.net)
- "Was it a dream where you're in sort of sun-god robes, standing on a
- pyramid, and thousands of naked women are screaming and throwing little
- pickles at you?" "No." "Why am I the only one that has that dream?"
-
-