Chkservd is the service in cPanel that checks to make sure that services are running, then restarts them if necessary. It\u2019s also responsible for the \u2018Service Manager\u2019 section in cPanel, which is an interface where added services can be easily checked on and off.
\nTo add a new service, create a line in \/etc\/chkserv.d\/chkservd.conf in the same format as the others:<\/p>\n
service:1<\/p>\n
1 means the service should be enabled, 0 means it\u2019s off. * Connection-based monitoring \u2013 By default, cPanel will try to connect to the service\u2019s specified port, issue a command, and if a response is received within 10 seconds it will consider the service to be online. For instance, FTP: If you don\u2019t even have chkservd installed, it\u2019s probably missing and you need to install it.<\/p>\n","protected":false},"excerpt":{"rendered":" Chkservd is the service in cPanel that checks to make sure that services are running, then restarts them if necessary. It\u2019s also responsible for the \u2018Service Manager\u2019 section in cPanel, which is an interface where added services can be easily checked on and off. To add a new service, create a line in \/etc\/chkserv.d\/chkservd.conf in… <\/p>\n
\nIn \/etc\/chkserv.d each service has its own file. Create a file called as the name of the service you are monitoring. The contents of the file are in the format of:
\n
\n #SERVICE = PORT, SEND, RESPONSE, RE-START COMMAND
\n<\/code>
\nThere are two ways that cPanel checks services with chkservd:<\/p>\n
\n
\n service[ftpd]=21,QUIT,220,\/scripts\/restartsrv_ftpserver
\n<\/code>
\n * Process-based monitoring \u2013 cPanel will check for a specific process to determine whether it is online. For instance, named:
\n
\n service[named]=x,x,x,\/scripts\/restartsrvr_bind,named,named|bind
\n<\/code>
\nIf you have more than one restart command, you can separate them with semicolons in order of preference that they should be run. Output of these commands will be logged to the chkservd.log
\nAfter you\u2019ve created the service\u2019s configuration file, restart chkservd:
\n
\n \/etc\/init.d\/chkservd restart
\n<\/code>
\nYou should then see the service listed in WebHost Manager in the \u2019service manager section\u2019
\nChkservd logs are in \/var\/log\/chkservd.log. Checks are done every 8 minutes, and everyone online service gets a +, offline services get a -. If the service is determined to be offline, the restart command(s) specified in that service\u2019s chkservd configuration file is issued and the output is logged.<\/p>\n