Installing nagios in the server

Installing Nagios:



1. Download tar ball from www.nagios.org extract it
2. Go to the extracted directory and give following commands:

# ./configure --prefix=/usr/local/nagios

# make all

##### create nagios user and group###

# groupadd nagios

# adduser -g nagios nagios

# passwd nagios -------> set passwd to nagios

##### Give following cmds ###

# make install

# make install-init

# make install-commandmode

# make install-config

3. Create dir nagios in your documentroot of http server. For example: your docroot
is /var/www/html then create diirectory

mkdir /var/www/html/nagios

4. Change owner and group to nagios:nagios

chown nagios:nagios

5. cp -ap /usr/local/nagios/share/* /var/www/html/nagios

6. Now check in your browser http://localhost/nagios

7. remove "sample" from filenames of all configuration files which are under /usr/local/nagios/etc/

8. open /usr/local/nagios/etc/cgi.cfg and replace following line

physical_html_path=/usr/local/nagios/share ----------> to -------->

physical_html_path=/var/www/html/nagios

use_authentication=1 -------> to ---------> use-authentication=0


9. mkdir /var/www/html/nagios/cgi-bin

10. chown nagios:nagios /var/www/html/nagios/cgi-bin

11. cp -ap /usr/local/nagios/sbin/* /var/www/html/nagios/cgi-bin

12. in httpd.conf add following line:

ScriptAlias /nagios/cgi-bin/ "/var/www/html/nagios/cgi-bin/" ------> PLEASE DO NOT
FORGET to GIVE "/" in the END.

13. Restart Apache

14. Start nagios deamon

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg ------> For testing conf

/usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg -d &

15. Check nagios is started or not

ps -ef|grep nagios

16. Check again in your browser http://localhost/nagios and try clicking on different "menus in side
bar." It shuld show you some status.

17. Installing nagios plugins -->

18. untar nagios-plugins tarball.

19. go to that directory and execute following commands:

./configure --prefix=/usr/local/nagios/

make

make install

20. It will install nagios-plugins in following dir : /usr/local/nagios/libexec/

21. For refreshing nagios deamon:

killall -HUP /usr/local/nagios/bin/nagios