We are now going to walk through a number of firewalld setups that’s often seen in the real world.
This is a quick guide to using the telnet command.
A dhcp (dynamic host configuration protocol) server provides configuration to boxes that joins it’s network.
dhclient is often used to refresh configurations provided by dhcp
mtr is a combination of the ping and traceroute command.
This article shows how you can use elinks to help diagnose network related problems.
This article shows how you can use curl and wget to help diagnose network related problems.
This article outlines a standard set of steps to take to try to identify which part of the whole setup is causing the problem.
This is gives a practical hands on walkthrough on understanding, configuring, and troubleshooting network related problems. We will be exclusively using CentOS throughout this series.
nmap (aka network mapper) is used to identify what ports are open for a given vm.