====== Monit ======
[[https://mmonit.com/monit/documentation/monit.html|Manual]]

===== Syntax =====

==== external hosts ====
<code>check host example address example.org
        if failed port 22 protocol ssh then alert
        if failed host cloud.example.org port 80 protocol http then alert</code>

===== Templates =====

==== Samba ====
<file - /etc/monit/conf-available/samba># Monit SMB Server Monitoring
check process Samba with pidfile "/var/run/samba/smbd.pid"
    start program = "/etc/init.d/smbd start"
    stop program  = "/etc/init.d/smbd stop"
    if failed host 127.0.0.1 port 139 type tcp for 2 cycles then restart
    if 2 restarts within 3 cycles then unmonitor</file>

==== NFS ====
<file - /etc/monit/conf-available/nfs># Monit NFS Server Monitoring
check process NFS with pidfile /var/run/rpc.statd.pid
  	start program = "/etc/init.d/nfs-kernel-server start"
  	stop program  = "/etc/init.d/nfs-kernel-server stop"
  	if failed host 127.0.0.1 port 2049 type tcp for 2 cycles then restart
  	if 2 restarts within 3 cycles then unmonitor</file>

==== Btrfs ====
<file bash /opt/scripts/btrfsck_data.sh>#!/bin/bash
/bin/btrfs device stats /mnt/data | grep -vE ' 0$'</file>
<file - /etc/monit/conf-available/btrfsck>check program btrfsck_data with path /opt/scripts/btrfsck_data.sh
        if status != 1 then alert</file>