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How To Install and Configure Monit
Время создания: 14.03.2017 09:52
Текстовые метки: linux monit config
Раздел: Linux
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About Monit

Monit is a helpful program that automatically monitors and manages server programs to ensure that they not only stay online consistently, but that the file size, checksum, or permissions are always correct. Additionally monit comes with a basic web interface through which all of the processes can be set up. This tutorial will cover the most basic setup and configuration.

Install Monit

Monit is easiest to install through apt-get:

sudo apt-get install monit

Once monit downloads, you can add programs and processes to the configuration file:

sudo nano /etc/monit/monitrc

Monit can be started up with a command that then keeps it running in the background


Typing monit status displays monit’s details:

The Monit daemon 5.3.2 uptime: 1h 25m

System 'myhost.mydomain.tld'

status Running

monitoring status Monitored

load average [0.03] [0.14] [0.20]

cpu 3.5%us 5.9%sy 0.0%wa

memory usage 26100 kB [10.4%]

swap usage 0 kB [0.0%]

data collected Thu, 30 Aug 2012 18:35:00

Configure Monit

Monit is very easy to use nearly out of the box. By default, it is set up to check that services are running every 2 minutes and stores its log file in “/var/log/monit.log”.

These settings can be altered at the beginning of the configuration file in the set daemon and set logfile lines respectively.

Web Service

Monit comes with it’s own web server running on port 2812. To configure the web interface, find and uncomment the section that begins with set httpd port 2812. Once the section is uncommented, write in your server’s IP or domain name as the address, allow anyone to connect, and then create a monit user and password

set httpd port 2812

use address # only accept connection from localhost

allow # allow localhost to connect to the server and

allow admin:monit # require user 'admin' with password 'monit'

Once this is configured, monit should reload and reread the configuration file, and the web interface will be available:

monit reload

You will then be able to access the monit web interface by going to “”

Login with your chosen username and password. Your screen should look something like this .

Configuring Programs Self-Monitoring

Once the web services are set up, you can begin to input the programs that you want monitored and protected into the "/etc/monit/monitrc" configuration file. To simply ensure that programs stay online, you can use the /etc/init.d commands to stop or start a program.

Here are some example configurations:


check process apache with pidfile /run/

start program = "/etc/init.d/apache2 start" with timeout 60 seconds

stop program = "/etc/init.d/apache2 stop"


check process mysqld with pidfile /var/run/mysqld/

start program = "/etc/init.d/mysql start"

stop program = "/etc/init.d/mysql stop"


check process nginx with pidfile /var/run/

start program = "/etc/init.d/nginx start"

stop program = "/etc/init.d/nginx stop"

Finish Up

Once you have configured all of the programs that you want to run, they will be automatically tracked and restarted should they turn off.

You can control the programs through both the web interface or the command line.

Once you have set up the configuration, check the syntax:

monit -t

After resolving any possible syntax errors, you can start running all of the monitored programs.

monit start all

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