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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 # yum install epel-release.noarch # Install collectd + rrd support # yum install collectd collectd-rrdtool #… Continue reading Centos 7 – Installing Collectd and Collectd-Web
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
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”
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
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 useradd nagios Install openssl devel yum install openssl-devel Install xinetd yum install xinetd Install Nagios NRPE Current version of NRPE is… Continue reading Centos 6 – Install Nagios client from source
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 yum install httpd php gd gd-devel gcc glibc glibc-common openssl perl perl-devel make mailx Create nagios user/groups useradd nagios groupadd nagcmd usermod -a -G nagcmd nagios Untar the source and install… Continue reading Nagios Core + Nagios plugins basic install from source on Centos 6.x