Tags » Nagios

Nagios "Socket timeout" Troubleshooting

Nagios is a free and open source computer software application that monitors systems, networks and infrastructure. Nagios is easy to deploy, monitor and, troubleshooting. There’s a… 388 more words


NRPE Installation and Client Configuration [ Nagios ]

This is just a custom guide to install and configure Nagios Remote Plugin Executor  on Centos 7.x, this could be more technical and advanced, if you do not understand or don’t know what you are doing, I kindly request you to take extreme caution and the components used here on GCP are billable. 495 more words


Configuring SSL/TLS on Nagios

This post describes how to configure SSL/TLS on your Nagios server. During the initial setup, I’m using CentOS 7.x.

yum install -y mod_ssl openssl

Next, go to root’s home directory. 380 more words


Nagios Notifications Not Working

If for some reason, your Nagios server stops sending out host alerts it’s more than likely that recent update broke it. If that is the case, you will need to re-run the update, which should fix the issue. 166 more words


XINETD/NRPE | Cannot Write to Pidfile

 Cannot write to pidfile ‘/var/run/nagios/nrpe.pid’ – check your privileges.

This error occurs when the “pidfile” cannot be rewritten. In most cases, this happens after a reboot and the file itself is read-only instead of read/write. 196 more words



Enter the following commands into your terminal session:

cd /tmp
wget https://assets.nagios.com/downloads/nagiosxi/agents/linux-nrpe-agent.tar.gz

After the file has downloaded, you will need to unzip the file

tar -xzf linux-nrpe-agent.tar.gz… 1,494 more words

Installing Nagios3 on Ubuntu 16.04

The Nagios current release is v4 however you’ll need to build this. Nagios3 is available from a repository with minimal interaction and as far as I’m aware offers the same functionalities required by most admins. 45 more words