Try $USER1$/check_http -H $HOSTADDRESS$ -u $ARG1$ -s $ARG2$ in any case I would try run check_http manually with those arguments, should be in the libexec folder. <div class="gmail_quote">On Mon, Jan 11, 2010 at 7:18 PM, Vladimir B. <<a href="mailto:vova190181@gmail.com">vova190181@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div dir="ltr">Hello, I`m trying to check a specific page on the web for a specific string using the check_http plugin. However, in the status information column in Nagios I get (NULL). What is that mean ? Is the command syntax wrong ? This is the command I`m using: $USER1$/check_http -H $HOSTADDRESS$ -u /<Page Url> -s $ARG2$ Thanks. </div> ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers <a href="http://p.sf.net/sfu/verizon-dev2dev" target="_blank">http://p.sf.net/sfu/verizon-dev2dev</a> _______________________________________________ Nagiosplug-help mailing list <a href="mailto:Nagiosplug-help@lists.sourceforge.net">Nagiosplug-help@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagiosplug-help" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagiosplug-help</a> ::: Please include plugins version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div> -- Best Regards, Stephen