How to check which Name Servers your computer is using in Ubuntu 22.04

ubuntu 22.04 using systemd-resolvd configuration like netplan:

resolvectl status

If you have Dekstop version with network manager installed:

nmcli dev show | grep DNS

For earlier Ubuntu servers:

systemd-resolve –status

History

cat /etc/resolv.conf will give you some info about how you resolve, however it won't show you the nameservers anymoew.

nameserver 127.0.0.1

nameserver 127.0.0.53

because Ubuntu uses dnsmasq, resolvconf, or more recently systemd to get it's name servers from Network Manager.