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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!news.ecn.uoknor.edu!news.ysu.edu!odin.oar.net!malgudi.oar.net!rclnews.eng.ohio-state.edu!magnus.acs.ohio-state.edu!math.ohio-state.edu!uwm.edu!chi-news.cic.net!news.luc.edu!orion!mmoore From: mmoore@orion.it.luc.edu (Michael Moore) Newsgroups: comp.sys.sun.admin,alt.sys.sun,comp.unix.bsd.misc,comp.unix.programmer,comp.unix.bsd.bsdi.misc,comp.unix.admin Subject: Re: ping script Followup-To: comp.sys.sun.admin,alt.sys.sun,comp.unix.bsd.misc,comp.unix.programmer,comp.unix.bsd.bsdi.misc,comp.unix.admin Date: 8 Aug 1996 17:45:21 GMT Organization: Loyola University Chicago Lines: 22 Message-ID: <4ud93h$67h@artemis.it.luc.edu> References: <Pine.SOL.3.93.960702171209.4062B-100000@gold.acns.fsu.edu> <4tp6ao$cal@usenet.ucs.indiana.edu> <4tpvs6$m51@typo.org> NNTP-Posting-Host: 147.126.1.9 NNTP-Posting-User: mmoore X-Newsreader: TIN [version 1.2 PL2] Xref: euryale.cc.adfa.oz.au comp.sys.sun.admin:72065 alt.sys.sun:10485 comp.unix.bsd.misc:1296 comp.unix.programmer:40944 comp.unix.bsd.bsdi.misc:4548 comp.unix.admin:45865 Although lack of network response doesn't necessarily indicate system hang, I find that ping, grabbing the date, or better yet, rsh'ing the uptime and load is a good monitoring technique. Sure, failure may just mean that inetd is dead or hung, but to your users, that's almost just as bad as a system hang. BOFH (web@typo.org) wrote: : John Fieber <jfieber@indiana.edu> wrote: : : > If inetd died you can forget about telneting to any of the services. : : ...except sendmail which is often run as a standalone daemon. : So what it sendmail dies? There's no sure way to monitor a system really. : All you can do is get a good approximation. (And fwiw, I've not seen inetd : die on any system I manage for QUITE a while. The only exceptions are : A: A bug in inetd which was patched by the vendor and B: an instance : where the system in question was suffering from an ill simm.) -- --- Mike