Re: pop server in an ISP environment

[Pat Myrto <pat () rwing ORG>]

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

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