Nagios Support Forum

Hello, I believe I've figured out the issue. A plugin called nagios_hpeilo_traps contains a function which searches for the Nagios command file ( nagios.cmd ) and it uses the command grep -r command_file which is for some reason very resource intensive. Here is a snippet of the function: NagiosCmdFi...

Hello everyone, Lately I've had weird performance issues on my Nagios Core server running on CentOS 7.9.2009. The server has 8 vCPUs and 8GB of RAM. This is what the incident looks like in htop: https://i.imgur.com/WCpdQCQ.png As you can see, a process by the nagios user running a command "grep...

Hello, I have now figured out the issue. The problem can be resolved on both CentOS 7.8.2003 and CentOS 8.2.2004 by installing some missing packages. On CentOS 8: yum -y install compat-openssl10 On CentOS 7: rpm -Uvh https://download-ib01.fedoraproject.org/pub/epel/7/x86_64/Packages/o/openssl11-libs...

Hello benjaminsmith , I've tried the methods described in your link, I was pretty sure that compiling NRPE with SSL would solve the issue, but it didn't. The strange thing is, only two services for this host are apparently getting the SSL error, all the other ones work fine: https://i.imgur.com/c2yD...

Is there any solution to this issue? I haven't been able to solve with my Google-fu.

Hello benjaminsmith , When I run the command with the -n switch, I get the following output: CHECK_NRPE: Receive header underflow - only -1 bytes received (4 expected). When using journalctl -eu nrpe on the target server, I can see that when I run the command without SSL, I get the following entry r...

Both servers have NRPE Version: 4.0.3

Hello everybody! I happened to notice that one of my CentOS 8 servers' NRPE checks was failing: https://i.imgur.com/Gzboktq.png On the servers console, using the following command, I can see that there is an SSL error occurring: journalctl -eu nrpe -f Oct 15 10:39:04 AWX.verkko.local nrpe[3151]: Err...

That's showing the user as 775 and the group as nagios, run these again and send the output: chown -R nagios:nagios /mnt/iSCSI chmod -R 775 /mnt/iSCSI ls -ld /mnt/iSCSI That seems to have done the trick. I was now able to create the repository! Using the server's command history , I was able to see...

Hello, I've setup an iSCSI Target on my Synology NAS and I've successfully connected to it on my Nagios Log Server via iscsiadm . The disk block has been formatted, it has a filesystem and I've mounted it to /mnt/iSCSI as can be seen below: https://i.imgur.com/Ddf5ZeF.png As you can see above, I've ...