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Re: Mail server for linux
On Mon, 15 Feb 1999, Peter L. Peres wrote:
> On Mon, 15 Feb 1999, ps -fax wrote:
>
> >Friday, Peter L. Peres blurbed:
> >
> >
> >>> Vmailer is very very easy to set up for such things. It still has some
> >> small bugs (speed-related) but it works ok.
> >
> >and security ones, etc. Vmailer sounds like a second-best choice for a
> >mailer on too many categories.
>
> Nuu, it is assumed that all the users who log into the mail server machine
> are well-trusted. Everyone else sees it as a POP and SMTP node. I don't
> think that there are any holes on that side of it. Besides setting it up
> in about 30 minutes is just too damn convenient ;) BTW if someone sets up
> Postfix and experiences slow delivery and hangs, kill syslogd. If the
> problem goes away, upgrade syslogd. The latest version fixes this and also
> refuses to log from the net unless told to do so.
That's may not be syslogd's fault. I've had similar problems with qmail
under heavy mail delivery load. It seemed that syslogd sync()s after every
line written to the log. my solution was to change:
/etc/syslog.conf
-------------------------------------------------------------
mail.* /var/log/maillog
to
mail.* -/var/log/maillog
-------------------------------------------------------------
The hyphen tells syslog not to sync after every line but only after a few
moments of inactivity or when buffer is full.
HTH,
Shachar.
Shachar Tal
-------------
Taub Computer Center, Technion, Israel Institute of Techonlogy
finger shachar@vipe.technion.ac.il for contact information or public key.