My server is sending me the below error message to my email every five minutes:
OSSEC HIDS Notification.
2011 Jun 17 16:30:03
Received From: ubuntu->/var/log/syslog
Rule: 1002 fired (level 2) -> "Unknown problem somewhere in the system."
Portion of the log(s):
Jun 18 08:30:01 ubuntu CRON: (www-data) CMD (php /usr/share/cacti/site/poller.php >/dev/null 2>/var/log/cacti/poller-error.log)
Any ideas on what it means?