Install
Nagios on RHEL5
Dependencies
* Install Apache and PHP
* GCC
* GD development lib
* GCC
* GD development lib
Create
User Account
/usr/sbin/useradd -m nagios
passwd nagios
/usr/sbin/groupadd nagcmd
/usr/sbin/usermod -a -G nagcmd
nagios
/usr/sbin/usermod -a -G nagcmd
apache
Build
and Install Nagios Core
wget
http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.0.tar.gz
tar zxf nagios-3.2.0.tar.gz
cd nagios-3.2.0
./configure --with-command-group=nagcmd
make all
make install
# Installs the init
script in /etc/rc.d/init.d
make install-init
# Installs and configures
permissions on the directory for holding the external command file
make install-config
# Installs sample config
files in /usr/local/nagios/etc
make install-commandmode
# Set contact email
vi /usr/local/nagios/etc/objects/contacts.cfg
# Install web interface
make install-webconf
# Create web interface
account
htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
# Restart Apache
/usr/local/apache2/bin/apachectl
stop
/usr/local/apache2/bin/apachectl
start
# Or
/sbin/service httpd restart
Compile
and Install Nagios Plugins
wget
http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.14.tar.gz
tar zxf nagios-plugins-1.4.14.tar.gz
cd nagios-plugins-1.4.14
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
AutoStart/Start/Stop Nagios
# Auto start Nagios
/sbin/chkconfig --add nagios
/sbin/chkconfig nagios on
# Check config file
/usr/local/nagios/bin/nagios
-v /usr/local/nagios/etc/nagios.cfg
# Start/Stop Nagios
/etc/init.d/nagios stop
/etc/init.d/nagios start
Add
host/router/switches to nagios
# To add node, uncomment respective
cfg_file line in
/usr/local/nagios/etc/nagios.cfg
Example: if you want to monitor a switch
then uncomment following line in nagios.cfg
cfg_file=/usr/local/nagios/etc/objects/switch.cfg
# Then go to /usr/local/nagios/etc/objects/
And
open switch.cfg
vi /usr/local/nagios/etc/objects/
switch.cfg
There
is an example of adding node. You can use that by copy/paste.
Access
Web Interface
or
References
