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—monit [2013/10/04 19:58] (current) – created - external edit 127.0.0.1
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 +====== Monit ======
  
 +  * [[Monit Examples]]
 +  * [[SocketLabs]]
 +  * [[dropbear]]
 +
 +  * [[http://mmonit.com/monit/documentation/monit.html|Documentation]]
 +
 +Monit is a systems software watchdog.  It will monitor services to make sure they are running, and take care of them if they get out of control.
 +==== Monitoring Modes ====
 +
 +There are two ways for monit to operate: as active or passive.  Active tries to fix problems while passive only monitors them, but sends alerts when something happens.
 +
 +==== Init ====
 +
 +  * [[upstart]]
 +
 +For Gentoo / CentOS, add monit to ''/etc/inittab'' and run ''telinit q'' to start the process and keep it respawning upon death.
 +
 +<code>
 +# monit
 +mo:2345:respawn:/usr/bin/monit -Ic /etc/monit/monitrc
 +</code>
 +
 +==== Ubuntu ====
 +
 +For Ubuntu, create ''/etc/init/monit.conf''.  Check the location of the monit binary, it may be in ''/usr/sbin'' instead of ''/usr/bin''
 +
 +<code>
 +start on runlevel [2345]
 +stop on runlevel [06]
 +exec /usr/bin/monit -Ic /etc/monit/monitrc
 +respawn
 +</code>
 +
 +Add monit to the default runlevels:
 +
 +<code>
 +update-rc.d monit defaults
 +service monit start
 +</code>
 +
 +==== CentOS ====
 +
 +Download and install the [[http://dev.digitaltrike.com/~steve/downloads/centos/init.d/monit|monit]] init.d script.  Make sure that the ''MONIT'' variable in the script points to the correct binary.
 +
 +Add monit to startup:
 +
 +<code>chkconfig --levels 235 monit on</code>
 +
 +==== FreeBSD ====
 +
 +  * [[FreeBSD]]
 +
 +  * [[http://beandog.digitaltrike.com/monit/freebsd/|monit samples]]
 +
 +Add monit to startup:
 +
 +<code>
 +echo monit_enable=YES >> /etc/rc.conf
 +/usr/local/etc/rc.d/monit start
 +</code>
 +
 +== Todo ==
 +
 +  * Find out how to run monit all the time.  See ''man 5 ttys'' for possible reference.
 +
 +==== NetBSD ====
 +
 +  * [[NetBSD]]
 +
 +<code>
 +
 +The following files should be created for monit-4.10.1nb2:
 +
 +        /etc/rc.d/monit (m=0755)
 +            [/usr/pkg/share/examples/rc.d/monit]
 +</code>
 +
 +==== Outgoing Email ====
 +
 +Monit can be configured to use SocketLabs SMTP relay server to send outgoing email.  SocketLabs only supports SSLv3 or no authentication:
 +
 +<code>
 +set mailserver smtp.socketlabs.com username <username> password <password>
 +set mailserver smtp.socketlabs.com port 587 username <username> password <password> using SSLV3
 +</code>

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