Nagios Monitoring Server Installation & Configuration on RedHat 6/CentOS 6 ~ Linux Basic Tutorial & Configurations

Nagios Monitoring Server Installation & Configuration on RedHat 6/CentOS 6

Download following packages nagios and nagios-plugin

Install following packages will be required for nagios installation

Packages and versions used:

a. nagios-3.3.1.tar

b. nagios-plugins-1.4.15.tar

1. Download the following dependency for nagios installation

yum install httpd php gcc glibc glibc-common gd gd-devel openssl*

2. Now add a user ‘nagios’ and group ‘nagms’

useradd nagios

passwd nagios

groupadd nagms

3. Now add nagios and apache to nagms group

usermod –g nagms nagios

usermod –g nagms apache

4. Now download the nagios-3.3.1.tar package from here(http://www.nagios.org/download/core/thanks/)

5. Untar the nagios package

tar xvfz nagios-3.3.1.tar

cd nagios-3.3..1/

./configure –with-coomand-group=nagms

make all

make install

make install-init

make install-config

make install-commandmode

make install webconf

Now Nagios server installation is complete. We can now customize our nagios server.

6. Edit admin email account

vim /usr/local/nagios/etc/objects/contacts.cfg

7. Now create a user for login using web browser

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosuser

service httpd restart

8. Now install nagios plugin. Download from here(http://www.nagios.org/download/plugins/)

9. Untar the package

tar xvfz nagios-plugins-1.4.15.tar

cd nagios-plugins-1.4.15/

./configure

make

make install

chkconfig nagios on

service nagios restart

10. To check whether installation is done without error, run this

   /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nag  ios.cfg

11. Now open web browser and open the link http://localhost/nagios

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