How to set permanent DNS Nameserver on Linux Mint 20.2

The Domain Name System is the hierarchical and decentralized naming system used to identify computers, services, and other resources reachable through the internet or other internet protocol networks. The resource records contained in the DNS associate domain names with other forms of information.
For more explanation on this video: https://www.linuxhelp.com/how-to-set-permanent-dns-nameserver-on-linux-mint-20-2

Видео How to set permanent DNS Nameserver on Linux Mint 20.2 канала LinuxHelp