Nagios : Install

Nagios : Install 2015/06/18

	Install Nagios which is an enterprise open source monitoring system.
[1]	Install and start Apache httpd, refer to here.
[2]	Install PHP, refer to here.
[3]	Install Nagios. Also Install basic plugins to monitor nagios server itself.

# install from EPEL [root@dlp ~]#  yum --enablerepo=epel -y install nagios nagios-plugins-{ping,disk,users,procs,load,swap,ssh,http}

[4]	Configure Nagios.

[root@dlp ~]#  vi /etc/httpd/conf.d/nagios.conf # line 24-26, change settings to set access permissionlike follows ( set for line 54-56, too ) #  Require all granted #  Require local Require ip 127.0.0.1 10.0.0.0/24 # add nagios admin user [root@dlp ~]#  htpasswd /etc/nagios/passwd nagiosadmin  New password: # set any password Re-type new password: Adding password for user nagiosadmin [root@dlp ~]#  systemctl start nagios  [root@dlp ~]#  chkconfig nagios on  [root@dlp ~]#  systemctl restart httpd

[5]	Access to the "http://(Nagios server's hostname or IP address)/nagios/" from a client which is in the network allowed by Nagios server and authenticate with the Nagios admin user "nagiosadmin" to login.

[6]	After successing authentication, the Nagios admin site is displayed.

[7]	It's possible to view system status to click "Tactical Overview" and so on.