if a DoS attack is in progress) Monit can stop or restart apache and send you an alert message. if sendmail is not running, monit can start sendmail again automatically or if apache is using too many resources (e.g. In contrast to many other monitoring systems, Monit can act if an error situation should occur, e.g. For instance sendmail, sshd, apache and mysql. Monit is particularly useful for monitoring daemon processes, such as those started at system boot time. You can use Monit to monitor daemon processes or similar programs running 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, protocol checks and can utilise SSL for such checks. Monit logs to syslog or to its own log file and notifies you about error conditions via customisable alert messages. Monit is controlled via an easy to configure control file based on a free-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 does not run, restart a process if it does not respond and stop a process if it uses too much resources. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations. Monit is a utility for managing and monitoring processes, programs, files, directories and filesystems on a Unix system.

Monit - utility for monitoring services on a Unix system SYNOPSIS SYSTEM AND PER-PROCESS FILEDESCRIPTORS TEST.

Write: bytes per second (physical storage).

Read: bytes per second (physical storage).

Setting a mail server for alert delivery.

Monit check process example