[Nagiosplug-help] plugin help

[mcalautt]

trying to implement the check_http plugin.

when ever I add the entry to the localhost.cfg and run a sanity check I get.

Checking services...
Error: Service check command 'check_http -H 192.168.0.5' specified in service 'Current Http' for host 'localhost' not defined anywhere!

I cant find any docs on how to add the plugin.
there is reference to it in  commands.cfg but it is not displayed on the webpage under service details.
everything else listed in 

 pwd
/etc/nagios

grep check_http *|grep -vi sampl
commands.cfg:# 'check_http' command definition
commands.cfg:        command_name    check_http
commands.cfg:        command_line    $USER1$/check_http -H $HOSTADDRESS$

thanks
mike
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