> >>> Sure. See the "negate" plugin. Alright, I finally figured it out.
Here, for what it is worth, is a reverse check for SMTP define command{ command_name check_reverse_smtp command_line $USER1$/negate "/usr/lib/nagios/plugins/check_smtp -H $HOSTADDRESS$" } define service{ use local-service host_name mail.yourDomain.com service_description SMTP_reverse_check check_command check_reverse_smtp } Of course, it goes without saying, but your mileage may vary according to how your cfg files are laid out. Thanks, Israel, Demetri, and Patrick. I really appreciate your help! ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null