OMD Client Installation
For more information on Open Monitor Distribution, visit omdistro.org
Description:
OMD bundles Nagios together with many important addons and can easily be installed on every major Linux distribution. We provide prebuilt packages for all enterprise Linux distributions and also for some other, such as Ubuntu.
OMD currently comes with the following software:
Nagios Monitoring Plugins (Former known as Nagios-Plugins) nsca, check_nrpe, Icinga, Shinken, NagVis, pnp4nagios, rrdtool/rrdcached Check_MK, MK Livestatus, Multisite, Dokuwiki, Thruk, Mod-Gearman check_logfiles, check_oracle_health, check_mysql_health, jmx4perl check_webinject, check_multi
Pre-Requisites:
Install the packages that are needed to support the OMD client, and configure the dependancy service.
RHEL & 
CentOS Installations:
1. Install the xinetd service:
yum clean all
yum -y install xinetd
2. Configure the service:
Edit the /etc/xinitd.conf file and set the only_from option to the IP of the OMD Server.
only_from = 1.2.3.4
3. Start the services:
CentOS/RHEL 6
service xinetd Start
chkconfig xinetd on
CentOS/RHEL 7
systemctl start xinetd.service
systemctl enable xinetd.service
Debian & 
Ubuntu Installations:
1. Install the xinetd service:
apt-get update
apt-get -y install xinetd wget
2. Configure the service:
Edit the /etc/xinitd.conf file and set the only_from option to the IP of the OMD Server.
only_from = 1.2.3.4
3. Start the services:
Debian < 8 / Ubuntu < 15.04
service xinetd Start
chkconfig xinetd on
Debian > 8 / Ubuntu > 15.04
systemctl start xinetd.service
systemctl enable xinetd.service
Install the Check_MK Agent:
RHEL & CentOS Installations:
1. Install the check-mk-agent:
yum clean all
yum -y install check-mk-agent
2. Run the agent:
check_mk_agent
3. Set firewall rules:
If the server is CentOS/RHEL > 7, then you need to set firewalld rules
firewall-cmd --zone=public --add-port=6556/tcp --permanent
firewall-cmd --reload
Debian & Ubuntu Installations:
1. Install the check-mk-agent:
A prepackaged check-mk-agent is not available via the standard debian repository, however, the OMD server has all of the agents bundled into it. The check-mk-agent can be retrieved via the OMD server.
URL: http://hostname_or_ip/{omd site name}/check_mk/agents/
cd /tmp
wget http://omdserver.yourcompany.com/production/check_mk/agents/check-mk-agent_1.2.6p12-1_all.deb
dpkg -i check-mk-agent_1.2.6p12-1_all.deb
rm -fr check-mk-agent_1.2.6p12-1_all.deb
2. Run the agent:
check_mk_agent
Post Requisites:
None