check_nginx.sh

Description check_nginx.sh is a Nagios plugin to check whether nginx is running. It also parses the nginx's status page to get requests and connections per second as well as requests per connection. You may have to alter your nginx configuration so that the plugin can access the server's status page. The plugin is highly configurable for this reason. See below for available options. -h/--help Output check_nginx.sh -H localhost -P 80 -p /var/run -n nginx.pid -s nginx_statut -o /tmp [-w INT] [-c INT] [-S] [-N] Options: -H/--hostname) Defines the hostname. Default is: localhost -P/--port) Defines the port. Default is: 80 -p/--path-pid) Path where nginx's pid file is being stored. You might need to alter this path according to your distribution. Default is: /var/run -n/--name_pid) Name of the pid file. Default is: nginx.pid -N/--no-pid-check) Turn this on, if you don't want to check for a pid file whether nginx is running, e.g. when you're checking a remote server. Default is: off -s/--status-page) Name of the server's status page defined in the location directive of your nginx configuration. Default is: nginx_status -o/--output-directory) Specifies where to write the tmp-file that the check creates. Default is: /tmp -S/--secure) In case your server is only reachable via SSL, use this switch to use HTTPS instead of HTTP. Default is: off -w/--warning) Sets a warning level for requests per second. Default is: off -c/--critical) Sets a critical level for requests per second. Default is: off Output example user@host: ~ $ ./check_nginx.sh -H localhost -P 80 -p /var/run -n nginx.pid -s nginx_status -o /tmp -w 15000 -c 20000 OK - nginx is running. 1 requests per second, 1 connections per second (1.00 requests per connection) | 'reqpsec'=1 'conpsec'=1 'conpreq'=1.00 ] user@host: ~ $ ./check_nginx.sh -H localhost -P 80 -p /var/run -n nginx.pid -s nginx_status -o /tmp -w 15000 -c 20000 OK - nginx is running. 13722 requests per second, 13725 connections per second (1.00 requests per connection) | 'reqpsec'=13722 'conpsec'=13725 'conpreq'=1.00 ] user@host: ~ $ ./check_nginx.sh -H localhost -P 80 -p /var/run -n nginx.pid -s nginx_status -o /tmp -w 10000 -c 15000 WARNING - nginx is running. 12462 requests per second, 12448 connections per second (1.00 requests per connection) | 'reqpsec'=12462 'conpsec'=12448 'conpreq'=1.00 user@host: ~ $ ./check_nginx.sh -H localhost -P 80 -p /var/run -n nginx.pid -s nginx_status -o /tmp -w 5000 -c 10000 CRITICAL - nginx is running. 14241 requests per second, 14253 connections per second (1.00 requests per connection) | 'reqpsec'=14241 'conpsec'=14253 'conpreq'=1.00 ChangeLog 2009-06-15 * nginx_status output is now stored in a variable instead of writing a file (better performance) to a temporary directory * warning must be lower than critical rather than lower or equal than critical

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