Install and Enable EPEL Repo:

yum -y install epel-release

This installs files in /etc/yum.repos.d/ and enables the epel repository by default.

On some servers, leaving EPEL enabled may not be in keeping with best practices to keep as close to the distribution rpm set as possible, so you can set the EPEL repository to be disabled by default.

perl -npi -e 's/enabled=1/enabled=0/' /etc/yum.repos.d/epel.repo

Installing Zabbix Agent

yum -y install zabbix22-agent

or if you have EPEL disabled:

yum --enablerepo=epel -y install zabbix20-agent

Configure Zabbix Agent to use monitor-pdc.rice.edu (10.143.195.18)

sed -i -e 's/Server=127.0.0.1/Server=10.143.195.18/' /etc/zabbix/zabbix_agentd.conf
sed -i -e "s/Hostname=Zabbix\ server/\#Hostname=$(hostname)/" /etc/zabbix/zabbix_agentd.conf

Start Service and Check Status

/sbin/chkconfig zabbix-agent on
/sbin/service zabbix-agent start
/sbin/service zabbix-agent status

Verify IPTABLES for Zabbix connections

Be sure /etc/sysconfig/iptables

Installing the Linux Zabbix Agent, getting the files from monitor.rice.edu

For servers in a closed network, the easiest way to install the Zabbix agent is probably
to download the files from monitor.rice.edu to a local workstation, then copy them over to
/tmp on your server and install from there.
This example assumes we downloaded the files and then copied to EA12.rice.edu:/tmp/

This installs just the Linux agent program; zabbix_agentd for monitoring. The default
config file will be placed at /etc/opt/zabbix/zabbix_agentd.conf. Everything else is specified
in the config file.

Download zabbix agent and files from monitor.rice.edu

# Grab zabbix_agent and its required packages:
divsite -l sandmant zabbix_agent

• Copy all files to client you are installing agent on, into /tmp/ZABBIX/

Setup Zabbix user/groups on new client

• Verify/add Zabbix user/groups on Linux client:

egrep '^zabbix:' /etc/passwd >/dev/null || cat - >> /etc/passwd << EOF
zabbix:x:906:906:Zabbix User:/home/zabbix:/bin/bash
EOF
egrep '^zabbix:' /etc/group >/dev/null || cat - >> /etc/group << EOF
zabbix:x:906:
EOF
pwconv 

• Setup config file and init script

Create a local configuration directory ONLY if you plan on customizing your zabbix_agentd.conf file. The default init script checks for /etc/opt/zabbix/zabbix_agentd.conf, and if found this file will be used instead of the default config file.

mkdir /etc/opt/zabbix
cp -p /usr/site/zabbix_agent/share/etc/zabbix_agentd.conf /etc/opt/zabbix

Create local var directory for log and pid files:

mkdir /var/opt/zabbix
chown -R zabbix:zabbix /var/opt/zabbix

Be sure IPTABLES is updated to accept connections on port 10050, from monitor-pdc.rice.edu (10.129143.92195.52. May be already
done with sitedisk iptables.18). MDI systems should already have this.

A simple example is below:

## accept Zabbix agent connections on port 10050, from zabbix server
## at 10.129.92.52
-A INPUT -p tcp -m tcp --dport 10050 -s 10.129143.92195.5218/32 -j ACCEPT

Install/activate init script:

cp -pi /usr/site/zabbix_agent/share/install/init/zabbix_agent /etc/init.d/zabbix_agent
chkconfig zabbix_agent on
chkconfig --list zabbix_agent

Update services file:

cat /usr/site/zabbix_agent/share/install/services/zabbix >> /etc/services

Start zabbix_agent on client

Fire it up:

/etc/init.d/zabbix_agent start

...