<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body bgcolor="#ffffff" text="#000000"> Charlie Reddington wrote : <blockquote type="cite">I've seen the docs about having services dependent on services, and hosts dependent on hosts. But how about services, dependent on hosts. Do I just use hosts instead of services in the config? </blockquote> Hi Charlie, I had the same problem. I read a lot of topics, but I didn't find anything. It seems there's no way to do what we would like to do : services dependant on hosts, ie do not try to check all the services if the host is down. I must say I don't really understand the actual "logic" of nagios, but for now, this seems to be 'by design'. Anyway, the "magic" of nagios applies : if it does not do what you want, then you just have to do it yourself. Here's what I did, and it seems to work fine. - activate 'event handlers' on host. This will run a nagios command each time a host status changes - set up this command to run an external script (called 'disable service checks') - this script will send back to nagios an 'external command' to enable or disable all the service checks for that host - as there is only one handler for any state change (UP or DOWN), the script has to check the actual status : if host DOWN then disable service checks, if host UP then enable service checks Now, let's do that : In hosts or hosts template : event_handler_enabled 1 event_handler disable-service-checks In your commands file: # event handler to disable service checks when host is down define command { command_name disable-service-checks command_line $USER1$/eventhandlers/disable_service_checks $HOSTSTATE$ $STATETYPE$ $HOSTATTEMPT$ $HOSTNAME } Then, put the following script in your plugins/eventhandler/ subdirectory, with name 'disable_service_checks' and execution flag : #!/bin/sh # # Enable / Disable service checks after a state change of the host # Arguments received are : $SHOSTATE$ $STATETYPE$ $HOSTATTEMPT$ $HOSTNAME # # by Toussaint OTTAVI, <a class="moz-txt-link-abbreviated" href="mailto:t.ottavi@medi.fr">t.ottavi@medi.fr</a> # CommandFile="/var/spool/nagios/nagios.cmd" LogFile="/var/log/nagios/disable_service_checks.log" # get the current date/time in seconds since UNIX epoch datetime=`date +%s` # send debug information to logfile /usr/bin/printf "Event Handler called with Hostname:%s State:%s Type:%s Attempts:%s\n" $4 $1 $2 $3 >> $LogFile # Check the $HOSTSTATE$ case "$1" in UP) # Host is UP, re-enable service checks /usr/bin/printf "[%i] ENABLE_HOST_SVC_CHECKS;%s \n" $datetime $4 >> $CommandFile ;; UNREACHABLE) # Host is UNREACHABLE, disable service checks /usr/bin/printf "[%i] DISABLE_HOST_SVC_CHECKS;%s \n" $datetime $4 >> $CommandFile ;; DOWN) # Host is DOWN, disable service checks /usr/bin/printf "[%i] DISABLE_HOST_SVC_CHECKS;%s \n" $datetime $4 >> $CommandFile ;; esac exit 0 Notes : - This is early beta, I did it yesyerday evening, not sure it works 100%, please feel free to provide feedback - all paths are for installation on OpenSuse. You may have to check/change some things. - in case of problems, first try to run the script by hand : 'disable_service_checks DOWN HARD 1 NAME_OF_MY_HOST', then see what happens in Nagios - to see if the handler really triggers, have a look at the logfile : /var/log/nagios/disable_service_checks.log - external commands must be activated in nagios.cfg - host names must not contain spaces. Maybe some scripting specialist could improve it... - the $STATETYPE$ variable should return a state 'SOFT' or 'HARD', which would allow to improve the script (only do the action if the state change is HARD). But for an unknown reason, Nagios does not send this value, so we can not process it. Any idea ? Enjoy Nagios Magic, I really love this tool, and hope this helps. Kind regards, <div class="moz-signature">-- <title>Signature</title> <meta http-equiv="Content-Type" content="text/html; "> <style type="text/css">  </style> Toussaint OTTAVI MEDI INFORMATIQUE Tel : 04 95 20 10 03 Gsm : 06 10 28 41 72 Mail: <a class="moz-txt-link-abbreviated" href="mailto:t.ottavi@medi.fr">t.ottavi@medi.fr</a> </div> </body> </html>