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From: taob@gate.sinica.edu.tw (Brian Tao)
Newsgroups: comp.os.linux.advocacy,comp.unix.bsd.freebsd.misc
Subject: Re: Linux vs. FreeBSD
Date: 21 Jun 1995 12:53:14 GMT
Organization: Institute of Biomedical Sciences, Academia Sinica
Lines: 24
Message-ID: <3s94nq$b8v@gate.sinica.edu.tw>
References: <3qfhhv$7uc@titania.pps.pgh.pa.us> <3s71aa$83o@galaxy.ucr.edu> <3s85sg$p3n@gate.sinica.edu.tw> <3s8i13$60s@canyon.sr.hp.com>
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In article <3s8i13$60s@canyon.sr.hp.com>, Darryl Okahata <darrylo@sr.hp.com> wrote:
>Brian Tao (taob@gate.sinica.edu.tw) wrote:
>
>> The FreeBSD and IRIX rwhod
>> broadcasts information once every three minutes. The Solaris 2.4 one
>> broadcasts every minute. I can see where this may become a problem
>> with hundreds of local hosts, but with just six machines here, it
>> doesn't present much of a load.
>
> It is a big deal if you have a lot of systems -- we had to kill
>rwhod years ago. Doing an appropriate grep/sed of our /etc/hosts file
>shows WELL OVER 2000 (yes, 2000) IP addresses for Unix systems assigned
>to this single geographical site alone ...
Isn't this what I just said in my reply? :) I sure as heck
wouldn't run a multicast daemon on 2000 hosts all directly connected
on the same network. Then again, rwhod packets by default have a ttl
of 1, so unless you really have all your machines on the same network
segment (which would be horribly inefficient), you should still be
able to limit the propagation of the packets to small subnets. But
then again, a finger server would probably be better.
--
Brian ("Though this be madness, yet there is method in't") Tao
taob@gate.sinica.edu.tw <-- work ........ play --> taob@io.org