Nagios Support Forum

Realy!?! Just a typo?!?!?

Thank you all for your help.

@Box293 Do you mean restarting the nagios deamon or the complete server? I did a restart on the nagios deamon which didn't work. Unfortunately I can't restart the machine because it hosts a lot more services than the nagios so I have to try this sometime @V3xX Manual test works fine with Hostname an...

It worked for some days and suddenly during the day (without any restart or config-change) the host has gone "offline" and never came back up.

The funny thing is that i can monitor the virtual machines on the host but not the host itself...

No it's not a typo. Our Networkrange is 192.168.32.0 - 192.168.37.255 it's Networkmask is 255.255.240 instead of a normal 255.255.255.0 (/24).

>> You say you're monitoring "a few machines" and that you have 3 that exhibit this behavior I monitor around 180 Hosts (including some virtual ones) >> Are they on the same network as your Nagios box? Yes they are - they are in a 192.168.32.0/20 Network >> Are they on the same network as ...

Now I got it, I added it manually for testing purposes to make sure it uses IPv4 and not IPv6 - anyway manually it works with and without -4

-4 is for IPv4

Hi all, I experience some problems with the check_host_alive command on a few machines. I'm running Nagios Core 3.5.1 on a CentOS 6.5 # 'check-host-alive' command definition define command{ command_name check-host-alive command_line $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p...