Hi, Please show the command definition of database_connection-time. Furthermore in the service definition you use the following line: check_command database_connection-time! Didn't you want to pass arguments to the command? If they're already hardcoded in the command definition you can leave the exclamation mark off. <div class="gmail_quote"> On Tue, Nov 22, 2011 at 7:29 PM, Kaplan, Andrew H. <<a href="mailto:AHKAPLAN@partners.org">AHKAPLAN@partners.org</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div> Hi there -- I am going through the motions of adding a new checkcommand, and service to the Nagios server. The command involves the check_mssql_health plugin which runs on the Nagios server. The plugin gets in information via queries to a particular port on the Microsoft SQL server. Here are its particulars: /usr/local/nagios/libexec/check_mssql_health --server=<database server> --username=<username> --password=<password> --port=<port> --mode=connection-time The name of the checkcommand is: database_connection-time Once the checkcommand was created, so was the service. The configuration of the service in question, taken from the services.cfg file, is shown below: define service { service_description Database Connection Time check_command database_connection-time! host_name <database server> check_period 24x7 contact_groups nt-admins,linux-admins,admins event_handler_enabled 0 active_checks_enabled 1 passive_checks_enabled 0 notifications_enabled 1 check_freshness 0 freshness_threshold 86400 use generic-service } To verify the new configuration would work, the command: /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg was run to verify the configuration. It was here the error message: <ul> Checking services... Error: Service check command '<database>_connection-time' specified in service 'Database Connection Time' for host '<database server>' not defined anywhere! </ul> I verified the syntax of the command in the checkcommands.cfg file, including the name given to the command. Why would Nagios think the service check command is not defined, and return this error? The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at <a href="http://www.partners.org/complianceline" target="_blank">http://www.partners.org/complianceline</a> . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.</div> ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. <a href="http://p.sf.net/sfu/splunk-novd2d" target="_blank">http://p.sf.net/sfu/splunk-novd2d</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>