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| Original file line number | Diff line number | Diff line change |
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| ############################################################################### | ||
| ## Monit control file | ||
| ############################################################################### | ||
| ## | ||
| ## Comments begin with a '#' and extend through the end of the line. Keywords | ||
| ## are case insensitive. All path's MUST BE FULLY QUALIFIED, starting with '/'. | ||
| ## | ||
| ## Below you will find examples of some frequently used statements. For | ||
| ## information about the control file and a complete list of statements and | ||
| ## options, please have a look in the Monit manual. | ||
| ## | ||
| ## | ||
| ############################################################################### | ||
| ## Global section | ||
| ############################################################################### | ||
| ## | ||
| ## Start Monit in the background (run as a daemon): | ||
| # | ||
| set daemon 5 # check services at 120 seconds intervals | ||
| # with start delay 240 # optional: delay the first check by 4-minutes (by | ||
| # # default Monit check immediately after Monit start) | ||
| # | ||
| # | ||
| ## Set syslog logging. If you want to log to a standalone log file instead, | ||
| ## specify the full path to the log file | ||
| # | ||
| set log /var/log/monit.log | ||
|
|
||
| # | ||
| # | ||
| ## Set the location of the Monit lock file which stores the process id of the | ||
| ## running Monit instance. By default this file is stored in $HOME/.monit.pid | ||
| # | ||
| # set pidfile /var/run/monit.pid | ||
| # | ||
| ## Set the location of the Monit id file which stores the unique id for the | ||
| ## Monit instance. The id is generated and stored on first Monit start. By | ||
| ## default the file is placed in $HOME/.monit.id. | ||
| # | ||
| # set idfile /var/.monit.id | ||
| set idfile /var/lib/monit/id | ||
| # | ||
| ## Set the location of the Monit state file which saves monitoring states | ||
| ## on each cycle. By default the file is placed in $HOME/.monit.state. If | ||
| ## the state file is stored on a persistent filesystem, Monit will recover | ||
| ## the monitoring state across reboots. If it is on temporary filesystem, the | ||
| ## state will be lost on reboot which may be convenient in some situations. | ||
| # | ||
| # set statefile /var/.monit.state | ||
| set statefile /var/lib/monit/state | ||
| # | ||
| # | ||
|
|
||
| ## Set limits for various tests. The following example shows the default values: | ||
| ## | ||
| # set limits { | ||
| # programOutput: 512 B, # check program's output truncate limit | ||
| # sendExpectBuffer: 256 B, # limit for send/expect protocol test | ||
| # fileContentBuffer: 512 B, # limit for file content test | ||
| # httpContentBuffer: 1 MB, # limit for HTTP content test | ||
| # networkTimeout: 5 seconds # timeout for network I/O | ||
| # programTimeout: 300 seconds # timeout for check program | ||
| # stopTimeout: 30 seconds # timeout for service stop | ||
| # startTimeout: 30 seconds # timeout for service start | ||
| # restartTimeout: 30 seconds # timeout for service restart | ||
| # } | ||
|
|
||
| ## Set global SSL options (just most common options showed, see manual for | ||
| ## full list). | ||
| # | ||
| # set ssl { | ||
| # verify : enable, # verify SSL certificates (disabled by default but STRONGLY RECOMMENDED) | ||
| # selfsigned : allow # allow self signed SSL certificates (reject by default) | ||
| # } | ||
| # | ||
| # | ||
| ## Set the list of mail servers for alert delivery. Multiple servers may be | ||
| ## specified using a comma separator. If the first mail server fails, Monit | ||
| ## will use the second mail server in the list and so on. By default Monit uses | ||
| ## port 25 - it is possible to override this with the PORT option. | ||
| # | ||
| # set mailserver mail.bar.baz, # primary mailserver | ||
| # backup.bar.baz port 10025, # backup mailserver on port 10025 | ||
| # localhost # fallback relay | ||
| # | ||
| # | ||
| ## By default Monit will drop alert events if no mail servers are available. | ||
| ## If you want to keep the alerts for later delivery retry, you can use the | ||
| ## EVENTQUEUE statement. The base directory where undelivered alerts will be | ||
| ## stored is specified by the BASEDIR option. You can limit the queue size | ||
| ## by using the SLOTS option (if omitted, the queue is limited by space | ||
| ## available in the back end filesystem). | ||
| # | ||
| set eventqueue | ||
| basedir /var/lib/monit/events # set the base directory where events will be stored | ||
| slots 100 # optionally limit the queue size | ||
| # | ||
| # | ||
| ## Send status and events to M/Monit (for more information about M/Monit | ||
| ## see https://mmonit.com/). By default Monit registers credentials with | ||
| ## M/Monit so M/Monit can smoothly communicate back to Monit and you don't | ||
| ## have to register Monit credentials manually in M/Monit. It is possible to | ||
| ## disable credential registration using the commented out option below. | ||
| ## Though, if safety is a concern we recommend instead using https when | ||
| ## communicating with M/Monit and send credentials encrypted. The password | ||
| ## should be URL encoded if it contains URL-significant characters like | ||
| ## ":", "?", "@". Default timeout is 5 seconds, you can customize it by | ||
| ## adding the timeout option. | ||
| # | ||
| # set mmonit http://monit:monit@192.168.1.10:8080/collector | ||
| # # with timeout 30 seconds # Default timeout is 5 seconds | ||
| # # and register without credentials # Don't register credentials | ||
| # | ||
| # | ||
| ## Monit by default uses the following format for alerts if the mail-format | ||
| ## statement is missing:: | ||
| ## --8<-- | ||
| ## set mail-format { | ||
| ## from: Monit <monit@$HOST> | ||
| ## subject: monit alert -- $EVENT $SERVICE | ||
| ## message: $EVENT Service $SERVICE | ||
| ## Date: $DATE | ||
| ## Action: $ACTION | ||
| ## Host: $HOST | ||
| ## Description: $DESCRIPTION | ||
| ## | ||
| ## Your faithful employee, | ||
| ## Monit | ||
| ## } | ||
| ## --8<-- | ||
| ## | ||
| ## You can override this message format or parts of it, such as subject | ||
| ## or sender using the MAIL-FORMAT statement. Macros such as $DATE, etc. | ||
| ## are expanded at runtime. For example, to override the sender, use: | ||
| # | ||
| # set mail-format { from: monit@foo.bar } | ||
| # | ||
| # | ||
| ## You can set alert recipients whom will receive alerts if/when a | ||
| ## service defined in this file has errors. Alerts may be restricted on | ||
| ## events by using a filter as in the second example below. | ||
| # | ||
| # set alert sysadm@foo.bar # receive all alerts | ||
| # | ||
| ## Do not alert when Monit starts, stops or performs a user initiated action. | ||
| ## This filter is recommended to avoid getting alerts for trivial cases. | ||
| # | ||
| # set alert your-name@your.domain not on { instance, action } | ||
| # | ||
| # | ||
| ## Monit has an embedded HTTP interface which can be used to view status of | ||
| ## services monitored and manage services from a web interface. The HTTP | ||
| ## interface is also required if you want to issue Monit commands from the | ||
| ## command line, such as 'monit status' or 'monit restart service' The reason | ||
| ## for this is that the Monit client uses the HTTP interface to send these | ||
| ## commands to a running Monit daemon. See the Monit Wiki if you want to | ||
| ## enable SSL for the HTTP interface. | ||
| # | ||
| #set httpd port 2812 and | ||
| # use address localhost # only accept connection from localhost (drop if you use M/Monit) | ||
| # allow localhost # allow localhost to connect to the server and | ||
| # allow admin:monit # require user 'admin' with password 'monit' | ||
| # #with ssl { # enable SSL/TLS and set path to server certificate | ||
| # # pemfile: /etc/ssl/certs/monit.pem | ||
| # #} | ||
| # | ||
| ## Monit can perform act differently regarding services previous state when | ||
| ## going back in duty. By default, Monit will 'start' all services. Monit can | ||
| ## also takes no action to start services in 'nostart' mode. Monit can try to | ||
| ## restore the 'laststate' of the service when Monit was shutdown. | ||
| # set onreboot start # start, nostart, laststart | ||
|
|
||
| ############################################################################### | ||
| ## Services | ||
| ############################################################################### | ||
| ## | ||
| ## Check general system resources such as load average, cpu and memory | ||
| ## usage. Each test specifies a resource, conditions and the action to be | ||
| ## performed should a test fail. | ||
| # | ||
| # check system $HOST | ||
| # if loadavg (1min) per core > 2 for 5 cycles then alert | ||
| # if loadavg (5min) per core > 1.5 for 10 cycles then alert | ||
| # if cpu usage > 95% for 10 cycles then alert | ||
| # if memory usage > 75% then alert | ||
| # if swap usage > 25% then alert | ||
| # | ||
| # | ||
| ## Check if a file exists, checksum, permissions, uid and gid. In addition | ||
| ## to alert recipients in the global section, customized alert can be sent to | ||
| ## additional recipients by specifying a local alert handler. The service may | ||
| ## be grouped using the GROUP option. More than one group can be specified by | ||
| ## repeating the 'group name' statement. | ||
| # | ||
| # check file apache_bin with path /usr/local/apache/bin/httpd | ||
| # if failed checksum and | ||
| # expect the sum 8f7f419955cefa0b33a2ba316cba3659 then unmonitor | ||
| # if failed permission 755 then unmonitor | ||
| # if failed uid "root" then unmonitor | ||
| # if failed gid "root" then unmonitor | ||
| # alert security@foo.bar on { | ||
| # checksum, permission, uid, gid, unmonitor | ||
| # } with the mail-format { subject: Alarm! } | ||
| # group server | ||
| # | ||
| # | ||
| ## Check that a process is running, in this case Apache, and that it respond | ||
| ## to HTTP and HTTPS requests. Check its resource usage such as cpu and memory, | ||
| ## and number of children. If the process is not running, Monit will restart | ||
| ## it by default. In case the service is restarted very often and the | ||
| ## problem remains, it is possible to disable monitoring using the TIMEOUT | ||
| ## statement. This service depends on another service (apache_bin) which | ||
| ## is defined above. | ||
| # | ||
| # check process apache with pidfile /usr/local/apache/logs/httpd.pid | ||
| # start program = "/etc/init.d/httpd start" with timeout 60 seconds | ||
| # stop program = "/etc/init.d/httpd stop" | ||
| # if cpu > 60% for 2 cycles then alert | ||
| # if cpu > 80% for 5 cycles then restart | ||
| # if totalmem > 200.0 MB for 5 cycles then restart | ||
| # if children > 250 then restart | ||
| # if disk read > 500 kb/s for 10 cycles then alert | ||
| # if disk write > 500 kb/s for 10 cycles then alert | ||
| # if failed host www.tildeslash.com port 80 protocol http and request "/somefile.html" then restart | ||
| # if failed port 443 protocol https with timeout 15 seconds then restart | ||
| # if 3 restarts within 5 cycles then unmonitor | ||
| # depends on apache_bin | ||
| # group server | ||
| # | ||
| # | ||
| ## Check filesystem permissions, uid, gid, space usage, inode usage and disk I/O. | ||
| ## Other services, such as databases, may depend on this resource and an automatically | ||
| ## graceful stop may be cascaded to them before the filesystem will become full and data | ||
| ## lost. | ||
| # | ||
| # check filesystem datafs with path /dev/sdb1 | ||
| # start program = "/bin/mount /data" | ||
| # stop program = "/bin/umount /data" | ||
| # if failed permission 660 then unmonitor | ||
| # if failed uid "root" then unmonitor | ||
| # if failed gid "disk" then unmonitor | ||
| # if space usage > 80% for 5 times within 15 cycles then alert | ||
| # if space usage > 99% then stop | ||
| # if inode usage > 30000 then alert | ||
| # if inode usage > 99% then stop | ||
| # if read rate > 1 MB/s for 5 cycles then alert | ||
| # if read rate > 500 operations/s for 5 cycles then alert | ||
| # if write rate > 1 MB/s for 5 cycles then alert | ||
| # if write rate > 500 operations/s for 5 cycles then alert | ||
| # if service time > 10 milliseconds for 3 times within 5 cycles then alert | ||
| # group server | ||
| # | ||
| # | ||
| ## Check a file's timestamp. In this example, we test if a file is older | ||
| ## than 15 minutes and assume something is wrong if its not updated. Also, | ||
| ## if the file size exceed a given limit, execute a script | ||
| # | ||
| # check file database with path /data/mydatabase.db | ||
| # if failed permission 700 then alert | ||
| # if failed uid "data" then alert | ||
| # if failed gid "data" then alert | ||
| # if timestamp > 15 minutes then alert | ||
| # if size > 100 MB then exec "/my/cleanup/script" as uid dba and gid dba | ||
| # | ||
| # | ||
| ## Check directory permission, uid and gid. An event is triggered if the | ||
| ## directory does not belong to the user with uid 0 and gid 0. In addition, | ||
| ## the permissions have to match the octal description of 755 (see chmod(1)). | ||
| # | ||
| # check directory bin with path /bin | ||
| # if failed permission 755 then unmonitor | ||
| # if failed uid 0 then unmonitor | ||
| # if failed gid 0 then unmonitor | ||
| # | ||
| # | ||
| ## Check a remote host availability by issuing a ping test and check the | ||
| ## content of a response from a web server. Up to three pings are sent and | ||
| ## connection to a port and an application level network check is performed. | ||
| # | ||
| # check host myserver with address 192.168.1.1 | ||
| # if failed ping then alert | ||
| # if failed port 3306 protocol mysql with timeout 15 seconds then alert | ||
| # if failed port 80 protocol http | ||
| # and request /some/path with content = "a string" | ||
| # then alert | ||
| # | ||
| # | ||
| ## Check a network link status (up/down), link capacity changes, saturation | ||
| ## and bandwidth usage. | ||
| # | ||
| # check network public with interface eth0 | ||
| # if link down then alert | ||
| # if changed link then alert | ||
| # if saturation > 90% then alert | ||
| # if download > 10 MB/s then alert | ||
| # if total uploaded > 1 GB in last hour then alert | ||
| # | ||
| # | ||
| ## Check custom program status output. | ||
| # | ||
| # check program myscript with path /usr/local/bin/myscript.sh | ||
| # if status != 0 then alert | ||
| # | ||
| # | ||
| ############################################################################### | ||
| ## Includes | ||
| ############################################################################### | ||
| ## | ||
| ## It is possible to include additional configuration parts from other files or | ||
| ## directories. | ||
| # | ||
| include /etc/monit/conf.d/* | ||
| include /etc/monit/conf-enabled/* |
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