This document provides an overview of networking configuration and troubleshooting topics including IPv4 and IPv6 addressing, subnetting, network interface configuration, firewall configuration using UFW on Linux, and common Linux network troubleshooting commands such as ifconfig, ping, traceroute, netstat, dig, nslookup, host, and hostname. The document includes examples of how to configure static IP addresses, enable and disable interfaces, allow and deny ports through a firewall, and use troubleshooting commands to test connectivity and resolve DNS issues.