<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 12 (filtered medium)"> <style>  </style>  </head> <body lang=EN-GB link=blue vlink=purple> <div class=Section1> Hi,<o:p></o:p> <o:p> </o:p> Hoping somebody can help me out here.<o:p></o:p> <o:p> </o:p> I’ve installed Nagios on CentOS using the following page <a href="http://www.maxsworld.org/index.php/how-tos/nagios">http://www.maxsworld.org/index.php/how-tos/nagios</a> and been through the permissions sections here <a href="http://nagios.sourceforge.net/docs/2_0/commandfile.html">http://nagios.sourceforge.net/docs/2_0/commandfile.html</a><o:p></o:p> <o:p> </o:p> I have two problems now – the first one is with the check_nt command.<o:p></o:p> <o:p> </o:p> I have installed the NS Client on the server. The server has an ISA Firewall on there and I’ve allowed the connections and am monitoring the traffic. I’ve configured the host, services and everything else and they show up in the Nagios web interface fine. However whenever a check is done, I get the error Permission Denied in the web interface. No actual traffic is sent to the server and Nagios is not trying to connect to the NS Client on the server (Firewall logs show no connections). If I try to run the command from the linux server command line I get the results back. I’ve also done an ‘su nagios’ and run the command from that user account and it again works fine. I have a check setup for the local Nagios server to monitor it’s disk space and that is fine. I’m assuming it’s a permissions problem with the plugin or Nagios or something, but don’t know where.<o:p></o:p> <o:p> </o:p> Here is the check_nt entry from commands.cfg:<o:p></o:p> <o:p> </o:p> define command{<o:p></o:p> command_name check_nt<o:p></o:p> command_line $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$<o:p></o:p> }<o:p></o:p> <o:p> </o:p> And one of the service entries:<o:p></o:p> <o:p> </o:p> <o:p> </o:p> define service{<o:p></o:p> host_name MYHOST<o:p></o:p> use server-service-template<o:p></o:p> service_description Drive Space - C:<o:p></o:p> check_command check_nt!USEDDISKSPACE!-l c -w 80 -c 90<o:p></o:p> }<o:p></o:p> <o:p> </o:p> And the server-service-template entry is:<o:p></o:p> <o:p> </o:p> define service {<o:p></o:p> name server-service-template<o:p></o:p> <o:p> </o:p> contact_groups client_monitoring<o:p></o:p> <o:p> </o:p> is_volatile 0<o:p></o:p> max_check_attempts 3<o:p></o:p> normal_check_interval 1<o:p></o:p> retry_check_interval 1<o:p></o:p> <o:p> </o:p> active_checks_enabled 1<o:p></o:p> passive_checks_enabled 1<o:p></o:p> check_period 24x7<o:p></o:p> <o:p> </o:p> # leave this unless you know what you are doing<o:p></o:p> parallelize_check 1<o:p></o:p> obsess_over_service 0<o:p></o:p> check_freshness 0<o:p></o:p> # freshness_threshold<o:p></o:p> <o:p> </o:p> flap_detection_enabled 0<o:p></o:p> event_handler_enabled 0<o:p></o:p> # low_flap_threshold<o:p></o:p> # high_flap_threshold<o:p></o:p> <o:p> </o:p> process_perf_data 1<o:p></o:p> <o:p> </o:p> retain_status_information 1<o:p></o:p> retain_nonstatus_information 1<o:p></o:p> <o:p> </o:p> notifications_enabled 1<o:p></o:p> notification_interval 30<o:p></o:p> notification_period 24x7<o:p></o:p> # w = send notifications on a WARNING state<o:p></o:p> # u = send notifications on an UNKNOWN state<o:p></o:p> # c = send notifications on a CRITICAL state<o:p></o:p> # r = send notifications on recoveries (OK state)<o:p></o:p> # f = send notifications when the service starts and stops flapping<o:p></o:p> # n (none) as an option, no service notifications will be sent out<o:p></o:p> notification_options w,u,c,r<o:p></o:p> <o:p> </o:p> contact_groups client_monitoring<o:p></o:p> <o:p> </o:p> register 0<o:p></o:p> }<o:p></o:p> <o:p> </o:p> (as you can see I like to have all of the entries in there, even the ones that have the same default as I want)<o:p></o:p> <o:p> </o:p> The second problem I have is when I try to change the scheduled time for the next check on a service – the error I get is:<o:p></o:p> <o:p> </o:p> Error: Could not stat() command file '/var/log/nagios/rw/nagios.cmd'!<o:p></o:p> The external command file may be missing, Nagios may not be running, and/or Nagios may not be checking external commands. <o:p></o:p> An error occurred while attempting to commit your command for processing.<o:p></o:p> <o:p> </o:p> Any suggestions to this?<o:p></o:p> <o:p> </o:p> I’m liking Nagios, but these problems are stopping me from using it any further.<o:p></o:p> <o:p> </o:p> Kind regards,<o:p></o:p> <o:p> </o:p> Paul Broadwith MBCS<o:p></o:p> Blue Ivy Ltd - Microsoft Small Business Specialist, UK Partner Qualified for 2007<o:p></o:p> <o:p> </o:p> Tel.: 0800 612 0601<o:p></o:p> Windows Messenger: <a href="mailto:paul.broadwith@blueivy.co.uk">paul.broadwith@blueivy.co.uk</a><o:p></o:p> Web: <a href="http://www.blueivy.co.uk">http://www.blueivy.co.uk</a><o:p></o:p> Blog: <a href="http://blog.blueivy.co.uk">http://blog.blueivy.co.uk</a><o:p></o:p> <o:p> </o:p> </div> </body>  <HR> Blue Ivy Limited is a limited company registered in Scotland. 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