Hi, I am checking a number of servers which are "on the Internet", and are thus likely to become unreachable for my Nagios installations in case of an outage out there on the Internet. I would like to have a "host" which I could use as parent host for all those servers so that I don't get buried under an avalanche of HOST DOWN alarms should my Internet go partly or fully down.
I have investigated using check_multi do help me with that, and have come up with a solution which can help me with this task. I would like to solicit your comments to that solution. I have defined a number of hosts which are checked by Nagios proper, just as normal hosts are. Their individual notifications may be switched off, but I haven't done so since I like to see what's going on at least in the start phase. Their hostnames all start with mh-internet, so I can use a single check_multi config line to pull them all into a single check_multi check. check_multi is then used as service and host check on a "virtual host" called internet, which goes CRITICAL when more than one mh-internet-foo host is CRITICAL. Here is my detailed configuration: /etc/nagios3/conf.d/internet.cmd: statusdat [ internet ] = /^mh-internet-.*$/:my-defaultping state[WARNING] = COUNT(WARNING) > 1 state[CRITICAL] = COUNT(CRITICAL) > 1 state[UNKNOWN] = COUNT(UNKNOWN) > 1 Nagios configuration: define host { use mh-host host_name mh-internet alias internet address 127.0.0.1 parents localhost check_command check_multi!-f /etc/nagios3/conf.d/internet.cmd } define service { name my-internet use my-service service_description my-internet check_command check_multi!-f /etc/nagios3/conf.d/internet.cmd host_name mh-internet } define command { command_name check_multi command_line /usr/lib/nagios/plugins/check_multi $ARG1$ $ARG2$ $ARG3$ $ARG4$ } define host { use mh-host host_name mh-internet-torres hostgroups mh, ping alias torres.zugschlus.de address 85.214.68.41 parents mh-internet } define host { use mh-host host_name mh-internet-heise hostgroups mh, ping alias www.heise.de address www.heise.de parents mh-internet } define host { use mh-host host_name mh-internet-google-de hostgroups mh, ping alias www.google.de address www.google.de parents mh-internet } I am wondering whether this is a valid approach, or whether there are better solutions for this challenge. If somebody familiar with check_multi configuration, I would like to know whether there are any possible issues hiding in my use of check_multi. Any comments will be appreciated. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834 Nordisch by Nature | How to make an American Quilt | Fax: *49 3221 2323190 ------------------------------------------------------------------------------ _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null