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Re: Passive checks out of sync with log

Nagios doesn't always log the result of every status check, but it does log the result of every status check where the result is different from the lats time it ran. You might want to look into state stalking.
by eloyd
Thu Oct 03, 2019 3:24 pm
 
Forum: Nagios Core
Topic: Passive checks out of sync with log
Replies: 6
Views: 286

Re: Monitoring Engine always going down

I have nothing specific to have you look for, but the startup message is
Code: Select all
Nagios 4.4.3 starting...

(or whatever your version is).

You could look for that in /usr/local/nagios/var/nagios.log and then see what comes before it.
by eloyd
Mon Sep 23, 2019 8:34 am
 
Forum: Nagios XI
Topic: Monitoring Engine always going down
Replies: 5
Views: 193

Re: NRDP Passive host and service definitions - check_dummy

Ram, I will address your note from the bottom up: If i enable the check_freshness by setting it as 1, then the check_dummy will get executed if there is no passive checks arrived within the threshold timing. This is correct. My question is that its defined as "check_dummy!0", i hope it sub...
by eloyd
Fri Sep 20, 2019 5:08 pm
 
Forum: Nagios Core
Topic: NRDP Passive host and service definitions - check_dummy
Replies: 9
Views: 409

Re: NRDP Passive host and service definitions - check_dummy

If freshness is set to 0, the check will always be "fresh." It's only when it is "stale" that the check_command is executed. So with freshness set to 0, the check_dummy command will never execute and the service will always show the last result it was sent, even if that result wa...
by eloyd
Fri Sep 20, 2019 2:46 pm
 
Forum: Nagios Core
Topic: NRDP Passive host and service definitions - check_dummy
Replies: 9
Views: 409

Re: NRDP Passive host and service definitions - check_dummy

Passive checks rely on an external process to schedule the check an send the results to Nagios. In your case, using NRDP. The check_dummy command comes in to play when freshness checking is turned on on the Nagios server. Freshness checking says, "if I haven't received a passive result check in...
by eloyd
Fri Sep 20, 2019 10:08 am
 
Forum: Nagios Core
Topic: NRDP Passive host and service definitions - check_dummy
Replies: 9
Views: 409

Re: Restrict dashboard access and export to csv

Whoops! I just realized I thought the question was about XI. Now I see it was LS. Sorry about that!
by eloyd
Fri Sep 13, 2019 10:21 am
 
Forum: Nagios Log Server
Topic: Restrict dashboard access and export to csv
Replies: 4
Views: 213

Re: Monitoring Engine always going down

You could start with /usr/local/nagios/var/nagios.log and see what happens right before it goes down. Another one would be /var/log/messages or /var/log/syslog, depending on your system.
by eloyd
Fri Sep 13, 2019 10:00 am
 
Forum: Nagios XI
Topic: Monitoring Engine always going down
Replies: 5
Views: 193

Re: Restrict dashboard access and export to csv

I'm not sure what you mean by "searched data" so I'm going to ignore that. As for creating dashboards for specific users, you have two choices: 1) Log in as that user and make a dashboard. Only that user will see it. 2) Log in as nagiosadmin (or other admin) and make a dashboard. Then depl...
by eloyd
Fri Sep 13, 2019 9:59 am
 
Forum: Nagios Log Server
Topic: Restrict dashboard access and export to csv
Replies: 4
Views: 213

Re: correlation

Nagios is not a correlation engine. It can do rudimentary parent/child relationships so that if a router is down, anything on the other side of the router will be considered unreachable, but you can't really do much more than that. If you need to go back in time and look at events for event correlat...
by eloyd
Fri Sep 13, 2019 9:57 am
 
Forum: Nagios Core
Topic: correlation
Replies: 2
Views: 134
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