====== Rotating System Logs ======

  * [[rsyslog]]

=== Configuration Options ===

  * **create <mode> <owner> <group>** - permissions
  * **dateext** - append the date to the extension instead of a number -- default is ''-YYYYMMDD''
  * **ifempty** - rotate the log even if the file is empty **(default)**
  * **maxage <count>** - remove rotated logs older than ''<count>'' days
  * **missingok** - if the log file is missing, go ahead to the next one -- by default, ''nomissingok'' is set
  * **rotate <count>** - log files are rotated ''<count>'' times before being removed

=== PHP error log ===

<code>
/var/log/php_error.log {
# compress old logs with gzip
compress

# zero out the old file instead of creating a new one
# this is simpler than setting the permissions in the config file
copytruncate

# create a new log file immediately after rotation and use these
# permissions if you want
# create 664 root www-logs

# If the log file is missing, go on to the next one without issuing an error message
missingok

# Do not rotate the log if it is empty
notifempty
}
</code>

=== Postfix Logrotate ===

See http://www.question-defense.com/2010/01/10/postfix-logrotate-script-for-gentoo-linux

I prefer to run ours daily.

<code>
/var/log/mail.* {
  missingok
  notifempty
  weekly
  rotate 3
  compress
  sharedscripts
  postrotate
    /etc/init.d/postfix reload > /dev/null 2>&1 || true
  endscript
}
</code>

For stats:

<code># pflogsumm.pl -d today /var/log/mail.log</code>

=== NetBSD ===

  * [[NetBSD]]

<code>
1/ modify /usr/pkg/etc/logrotate.conf to your needs,
or better, add your own configuration files in
/usr/pkg/etc/logrotate.d/

2/ set up a daily cron job for logrotate in root's crontab;
this can be done with one of the following line:
0 0 * * * /bin/sh /usr/pkg/share/examples/logrotate/logrotate.cron
0 0 * * * /usr/pkg/bin/logrotate /usr/pkg/etc/logrotate.conf
</code>

=== netatalk ===

  * [[netatalk]]

Any options will work, but ''copytruncate'' is necessary so that logs are continually written to.

<code>
/var/log/netatalk.log {
        notifempty
        maxage 31
        missingok
        rotate 7
        copytruncate
}
</code>