Sure, The problem was SSL handshake. what I did, on the remote solaris machine I recompiled nrpe without the ssl support (./configure --help will tell you how to do that). Once this is done, I executed the following command from the nagios server /home/nagios/nagios/libexec/check_nrpe -H <a href="http://10.192.2.60">10.192.2.60</a> -c check_users -n USERS OK - 2 users currently logged in |users=2;5;10;0 So, If the remote system was built and configured without ssl, you can define a separate entry in commands.cfg on the nagios server as in the following example: define command{ command_name check_nrpe_no_ssl command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -n } (note the -n qualifier in the command_line) modify your service check (in services.cfg) to use check_nrpe_no_ssl and restart the nagios server ex: check_nrpe_no_ssl!check_users!-n Hope this helps Regards -Shankar <div class="gmail_quote">On Mon, Jun 30, 2008 at 7:45 PM, Matthew Macdonald-Wallace <<a href="mailto:lists@truthisfreedom.org.uk">lists@truthisfreedom.org.uk</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 class="Ih2E3d">On Mon, 30 Jun 2008 18:36:52 +0530 <a href="mailto:asam30@gmail.com">asam30@gmail.com</a> wrote: > I was able to fix this myself. </div>Can you tell us how so that people who have a similar problem in future know what to do? Thanks, Matt -- Matthew Macdonald-Wallace <a href="mailto:matthew@truthisfreedom.org.uk">matthew@truthisfreedom.org.uk</a> <a href="http://www.truthisfreedom.org.uk" target="_blank">http://www.truthisfreedom.org.uk</a> ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. <a href="http://sourceforge.net/services/buy/index.php" target="_blank">http://sourceforge.net/services/buy/index.php</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div> -- Shankar Asam