LINUX_README.html   [plain text]

<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"



<title>Postfix and Linux</title>

<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">



<h1><img src="postfix-logo.jpg" width="203" height="98" ALT="">Postfix and Linux</h1>


<h2>Berkeley DB issues</h2>

<p> On RedHat Linux 7.0 you must install the db3-devel RPM before
you can compile the Postfix source code.  </p>

<p> Warning: do not use multiple Berkeley DB versions. Every Postfix
program will dump core when it is built with a different Berkeley
DB version than the version that is used by the system library
routines.  See the DB_README file for further information. </p>

<h2>Procmail issues</h2>

<p> On RedHat Linux 7.1 <b>procmail</b> no longer has permission
to write the mail spool directory. Workaround: chmod 1777

<h2>Syslogd performance</h2>

<p> LINUX <b>syslogd</b> uses synchronous writes by default. Because
of this, <b>syslogd</b> can actually use more system resources than
Postfix.  To avoid such badness, disable synchronous mail logfile
writes by editing /etc/syslog.conf and by prepending a - to the
logfile name:  </p>

    mail.*                          -/var/log/mail.log

<p> Send a "<b>kill -HUP</b>" to the <b>syslogd</b> to make the
change effective.  </p>