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Kalyan Kumar Pasupuleti B-Tech(Information Technology). • RedHat Certified Engineer(RHCE) • Directory Services and Authentication Certificate of Expertise(LDAP) • Red Hat SELinux Policy Administration Certificate of Expertise(SELinux) • Network Services Security Certificate of Expertise (Network Services) • RedHat Certified Virtualization Administrator(RHCVA) • Red Hat Certified Security Specialist (RHCSS) Working as Cloud DevOps engineer

Monday, October 20, 2014

How to upgrade Nagios core 3.5.0 to 4.0.8 version?

  Download nagios-4.0.8.tar.gz from http://www.nagios.org/download 
  Untar the source code:

# tar zxvf nagios-4.0.8.tar.gz
# cd nagios-4.0.8

  Compile the new source code:
nagios-4.0.8]# ./configure --with-command-group=nagcmd
nagios-4.0.8]# make all
nagios-4.0.8]# make install
  Verify the Nagios configuration for errors:

nagios-4.0.8]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

Nagios Core 4.0.8
Copyright (c) 2009-present Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-12-2014
License: GPL

Website: http://www.nagios.org
Reading configuration data...
Running pre-flight check on configuration data...

Checking objects...
        Checked 1231 services.
        Checked 221 hosts.
        Checked 34 host groups.
        Checked 2 service groups.
        Checked 28 contacts.
        Checked 27 contact groups.
        Checked 127 commands.
        Checked 7 time periods.
        Checked 0 host escalations.
        Checked 0 service escalations.
Checking for circular paths...
        Checked 221 hosts
        Checked 0 service dependencies
        Checked 172 host dependencies
        Checked 7 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors:   0

  Start Nagios service # service nagios restart
  Now check Nagios GUI http://<Nagios server IP>/nagios and observe the new version.