Nagios Update from 3.x to 4.x for Tetra's Nagios Server

Nagios Update from 3.x to 4.x

Reference - https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/upgrading.html#nagios3x

Download Nagios version 4.x from https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.1.1.tar.gz

Backup the current Nagios after stopping the Nagios Service .

tar zcvf ./nagios-backup.tgz -C / usr/local/nagios

Follow https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/upgrading.html#nagios3x for futher installation .

Issues - 1. livestatus failed

Rectification - https://support.nagios.com/forum/viewtopic.php?f=7&t=30485

2. pnp4nagios failed

rectification - http://www.monitoring-portal.org/wbb/index.php?page=Thread&threadID=29625