[28973] in North American Network Operators' Group
Re: pop server in an ISP environment
daemon@ATHENA.MIT.EDU (Pat Myrto)
Mon May 29 15:43:39 2000
From: Pat Myrto <pat@rwing.ORG>
Message-Id: <200005291941.MAA09268@rwing.ORG>
To: nanog@merit.edu
Date: Mon, 29 May 2000 12:41:31 -0700 (PDT)
In-Reply-To: <NCBBIKACLKNMKDHKKKNFAEMJEKAA.dima@dimension.net> from "Dmitri Krioukov" at May 29, 2000 11:42:50 AM
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Dmitri Krioukov has declared that:
>
>
> qpopper was written without even slightest thought about
> performance issues. there is a lot of other pop3 daemons
> written much more efficiently. (i don't any other that
> would perform worse than qpopper). try cucipop, for
> example. it was written by the same guy who wrote
> procmail. the source code is unreadable in both cases.
Sometimes it helps by running it through indent. Be sure
to verify the reformatted src by trying a recompile, to
make sure nothing gets broken by possible bugs in indent, etc.
Version on FreeBSD seems to be ANSI-PANSY aware (unlike some
earlier versions of indent that only worked for 'normal' code)
:-)
Pat M/HW
> --
> dima.
>
> > -----Original Message-----
> > From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
> > Muljawan Hendrianto
> > Sent: Friday, May 26, 2000 5:38 AM
> > To: nanog@merit.edu
> > Subject: pop server in an ISP environment
> >
> >
> >
> > Hello all,
> >
> > I would like to have your opinions regarding pop server set-up in
> > an ISP environment, what would be the common software used,
> > authentication type etc.
> >
> > I am thinking about using QPOPPER+procmail, but some people say
> > that it is not scalable because its authentication is based on
> > /etc/passwd. And in Unix environment there is certain
> > recommendation not to have more than 5000 users in /etc/passwd file.
> >
> > Another issue is high availability, does any body use server
> > clustering in an ISP environment?
> > I am thinking about having a Sun Cluster for these pop servers,
> > but will I need a special HA agent ?
> > AFAIK, the qpopper daemon will be initiated by the users (via
> > inetd) when they are accessing their mailbox.
> > Hence a Sun cluster will not need a special agent because, if one
> > of the servers crashed, the clustering software should
> > manage to redirect any traffic to the second server, so that the
> > users will connect transparently to that qpopper daemon in the
> > second server.
> > Does clustering in the real world can do the above scenario?
> >
> > What about LDAP for user's authentication ? Is it recommended to use ?
> >
> > Any suggestions/hints will be greatly appreciated.
> >
> > ps: the system should be able to accomodate about 20000 users.
> >
> > regards,
> > Muljawan
> >
> >
> >
>
--
#include <std.disclaimer.h> Pat Myrto (pat at rwing dot ORG) Seattle WA
Help Prevent Brush Fires!!!!! Open a big strip mine....
