TCP, UDP and Unix Domain Sockets aresupported. Monit can monitor network connections to various servers, either onlocalhost or on remote hosts. This isalso useful for security reasons - you can monitor the md5 or sha1checksum of files that should not change and get an alert or perform anaction if they should change. Monit can monitor these items for changes,such as timestamps changes, checksum changes or size changes. You can also use Monit to monitor files, directories and filesystems on localhost. Monit can also monitor process characteristics, such ashow much memory or cpu cycles a process is using. if a DoSattack is in progress) Monit can stop or restart apache and send you analert message. if sendmail is not running, monit can start sendmail againautomatically or if apache is using too many resources (e.g. In contrast to many othermonitoring systems, Monit can act if an error situation should occur,e.g. Forinstance sendmail, sshd, apache and mysql. Monit is particularly useful for monitoringdaemon processes, such as those started at system boot time.

WHAT TO MONITOR? You can use Monit to monitor daemon processes or similar programsrunning on localhost. Monit provides a http(s)interface and you may use a browser to access the Monit program. Monit can perform various TCP/IP network checks, protocolchecks and can utilize SSL for such checks.

Monit logs to syslog or to its ownlog file and notifies you about error conditions via customizable alertmessages. Monit is controlled via an easy to configure control file based on afree-format, token-oriented syntax. You can use Monit to monitor files,directories and filesystems for changes, such as timestamps changes,checksum changes or size changes. Monit can start a process if it doesnot run, restart a process if it does not respond and stop a process ifit uses too much resources. Monit conductsautomatic maintenance and repair and can execute meaningful causalactions in error situations. Updated: Index NAMEMonit - utility for monitoring services on a Unix system SYNOPSIS monit DESCRIPTION Monit is a utility for managing and monitoring processes, programs,files, directories and filesystems on a Unix system.

Monit apache example