Description
This plugin is part of Official Nagios® Plugins package and its documentation be found here.
Example of use and return of command
You must access the command directory before running it trough the following path: /usr/local/opmon/libexec/
[root@opmon]# ./check_tcp -H 192.168.10.8 -p '443' TCP OK - 0.001 second response time on port 443|time=0.000559s;;;0.000000;10.000000