Nagios Support Forum

This is about monitoring Cisco catalyst access switch C9200L. Knowing that we can make use of the Network switch configure to auto discover all the switch ports, etherchannel, stack ports, etc. However, we don't see the CPU usage, Memory usage, Fans condition, Cool Games Volts, more towards the cor...

Hi all, I’m having an issue in Nagios XI where some Linux hosts are being reported as DOWN even though they are clearly reachable. NRPE-based service checks like CPU, disk, and load are all returning OK, I can SSH into the servers without any problem, and pinging the hosts directly from the Nagios X...

Hello everyone, I am managing a system with more than 50 servers running on many different environments and using Nagios for monitoring. Currently PolyTrack , I have a problem where the system sends too many duplicate alerts when an incident occurs, making it difficult to monitor and handle promptly...

Hi, I’m on Nagios XI and trying to run a small custom script as a service check. The script runs fine when I test it manually in the terminal, but inside XI it just refuses to work. Either I see “plugin not found” or nothing useful comes back. I already dropped the script into the plugins folder and...

Debian 13 "Trixie" was released on August 9th, 2025. https://www.debian.org/releases/ Pips NYT Please create package builds and repo files for Debian 13. https://repo.nagios.com/?repo=deb-debian Hi @antonc42, Have you noticed if any specific Nagios components like plugins, NRPE, or XI age...

Hello, The .ova file downloaded (juny 2025) for vmware ESXi run in panic kernel at the boot time. I'm using ESXi 7.0.u3 Slope Game Any workaround ? Hey Alain, I’ve seen this happen when the OVA’s kernel doesn’t play nice with the ESXi version. You can try setting the right Linux OS type in the VM s...

Is there a way to download the Documentation Guides from Nagios for an offline installation and then edit the html to point to the local copy? URL for current guides: https://assets.nagios.com/downloads/nagiosxi/guides/administrator Wacky Flip Have you tried using tools like wget --mirror or HTTrac...

I believe the problem is due to a new php.ini that is introduced when you upgrade to remi php 8.3. I went through all the differences and isolated the problem properties: > date.timezone = America/Los_Angeles < session.use_strict_mode = 0 --- Baseball Bros Game > session.use_strict_mode = 1 The upg...

To monitor Windows service states in Nagios XI using the NCPA agent, configure the NCPA API on each host and ensure it is running properly. Define a check command in Nagios XI, such as querying the `services` endpoint with `check_ncpa.py`, to monitor services and alert if any set to Automatic are st...

You're not alone in encountering this! The error message you mentioned suggests Nagios can't locate the MIBs it's trying to work with. First, confirm that the MIB path in Nagios is correct and that your MIBs are installed in the appropriate directory. You might also need to clear out old or corrupte...