Linux Administration Bootcamp: Go from Beginner to Advanced - Networking - Domain Name System (DNS) and Hostnames

This video tutorial covers the basics of managing IP addresses and network interfaces on a Linux system. It explains how to use the IP and ifconfig commands to display and configure network settings. The tutorial also delves into setting and retrieving hostnames, understanding DNS, and using the host and dig tools for name resolution. Additionally, it discusses the role of the Etsy hosts file and how to configure name resolution order using the nsswitch file.

What is the loopback device and its IP address?

How do you resolve a DNS name or an IP address using command line tools?

What is the purpose of the '/etc/hosts' file?

Explain the significance of the 'nsswitch.conf' file in Linux.