Free Monitoring Routers and Switches using Nagios Core

How to configure Nagios Core to use the PNP4Nagios program to generate performance graphs Thanks for watching, don’t forget like and subscribe at 1. Download CentOS 2. Install CentOS on VirtualBox 3. Install Nagios Core on CentOS - #CentOS Routers and Switches - MIB Browser : - OID UpTime : - Port Status : - Port InOctets : - Port OutOctets: