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Newsgroups: comp.unix.bsd.freebsd.misc Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!newshost.telstra.net!news.ci.com.au!metro!metro!munnari.OZ.AU!news.ecn.uoknor.edu!paladin.american.edu!europa.chnt.gtegsc.com!news.kreonet.re.kr!usenet.seri.re.kr!news.cais.net!news.jsums.edu!gatech!newsfeed.internetmci.com!vixen.cso.uiuc.edu!uchinews!news From: csdayton+usenet@midway.uchicago.edu (Soren Dayton) Subject: Re: NFS question( sharing /var/mail and/or /usr/spool/news). In-Reply-To: rashid@rk.ios.com's message of 18 Feb 1996 16:08:49 GMT X-Nntp-Posting-Host: woodlawn.uchicago.edu Message-ID: <xcdohqvnb22.fsf@woodlawn.uchicago.edu> To: rashid@rk.ios.com (Rashid Karimov) Lines: 30 Sender: csdayton@woodlawn.uchicago.edu Organization: uchi.comp.unix viper cabal X-Newsreader: Gnus v5.1 References: <4g7iuh$dg0@news.ios.com> Date: Mon, 19 Feb 1996 05:23:17 GMT Our friend, rashid@rk.ios.com (Rashid Karimov), wrote: > Will it be fast enough ( the thing should serve ~20.000 - 50.000 > e-mail accounts), will there be problems with locking > mail-boxes for delivery and reading , There always is. The only real hope for locking is to do as much as possible. Procmail (version 3.11pre4. The 3.11 prereleases are the first ones to be functional on a 4.4 BSD platform) can take care of _some_ of this, but this is still really dangerous. It might be worth seeing hoe much you can do with IMAP/pop. Pine supports IMAP. MH, emacs user agents, and a couple of other things support pop. This leaves elm, mail, and mush (I think) that still give you problems. This is a much cleaner solution. You can probably make it all relatively secure by using ssh to proxy connections between machines too. > what's gonna happen > to the network , it there a sense in using 100Mb Ethernet. > > Is the idea usable at all for this amount of users ??? There are a lot of factors. Things like the software used (you probably want all of the software to take the stuff _out_ of the spool for example. This just pushes luck with file locking even more). > Any ther newtworked file system to be used instead of NFS :)) ? None that are free :) Soren