Nagios and Checking Squid

After installing Nagios I created three files to define all the services I wanted to monitor:

  • hosts.cfg
  • hostgroups.cfg
  • services.cfg

I used the check_squid code from
adding the relevant details to each of my 3 config files for Nagios.
I encountered a problem though as the check_squid perl script makes use of a Perl module LWP::UserAgent which I then had to install manually using:

perl -MCPAN -eshell “install LWP::UserAgent”

After approximately 101 questions I believe it installed, and I checked the check_squid script from the command line again using:

/usr/local/nagios/libexec/check_squid ‘’ ” ” ‘cache1.domain.tld’ ‘8080’ ” ” ‘2’

this time received the expected response:

OK – Status: 200 OK

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