Centos 7 – Installing Collectd and Collectd-Web

Published on Author gryzli

Installing collectd/collectd-web is pretty easy (if we dont dive into the deep water). So the whole installation is basically installing several packages + few config modifications.   # Installing Collectd   # Install Centos 7 epel repository

  # Install collectd + rrd support

  # Uncomment some lines in collectd config file… Continue reading Centos 7 – Installing Collectd and Collectd-Web

Nagios 4.x + Nagstamon / Nagios Checker plugin not showing all services

Published on Author gryzliLeave a comment

The problem Suddenly I had to update one nagios server from 3.x to 4.x. After the update there was some strange condition, when we had more then 100 services in a Warning/Critical state, Nagstamon or Nagios Checker were unable to show certain alerts.   It turned out that by default Nagios 4.0 split Warning/Critical results… Continue reading Nagios 4.x + Nagstamon / Nagios Checker plugin not showing all services

Nagstamon – Crashing on choosing “Display tab” or “Add new server”

Published on Author gryzliLeave a comment

The problem   Suddenly I realized, that from some time on, whenever I try to choose “Display tab” or “Add new server” in Nagstamon it’s crashing. This happens with all the nagstamon versions I already tried: 1.0,  0.9.11, 0.9.10 …   I was experiencing this problem on a multiple linux distros, including: Fedora 19,20 and… Continue reading Nagstamon – Crashing on choosing “Display tab” or “Add new server”

Centos 6.x / RHEL 6.x – Apache / Nagios 4.x – Install nagiosgraph plugin

Published on Author gryzli4 Comments

Nagiosgraph gets performance data from Nagios and by using RRDtool generates nice graphics for this data. The plugin’s home page is here: http://nagiosgraph.sourceforge.net/ Prerequisites Here I assume that you already have Nagios Core 4.x installed with the appropriate Apache configurations.   Installing yum packages yum install perl-CGI rrdtool-perl perl-Time-HiRes perl-GD perl-CPAN perl-Module-Build   Install Nagios::Config… Continue reading Centos 6.x / RHEL 6.x – Apache / Nagios 4.x – Install nagiosgraph plugin

Centos 6 – Install Nagios client from source

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We are assuming that our Nagios Server has IP: 192.168.1.1 By default client NRPE will listen on port 5666, so make sure it’s enabled on IPTABLES. Prerequisities Add nagios user

  Install openssl devel

  Install xinetd

    Install Nagios NRPE Current version of NRPE is 2.15.

  Install Nagios… Continue reading Centos 6 – Install Nagios client from source

Nagios Core + Nagios plugins basic install from source on Centos 6.x

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Download nagios core source In my case the latest stable nagios is nagios-4.0.8 Here’s the URL: http://www.nagios.org/download/core/thanks/?t=1414494536   Install some dependecy packages

  Create nagios user/groups

  Untar the source and install

  Copy event handlers

  Syntax check nagios.cfg configuration file

  Create htpasswd containing access credentials The credentials… Continue reading Nagios Core + Nagios plugins basic install from source on Centos 6.x