Linux Mint - Use Local DNS Server

Linux Mint is a community-driven Linux distribution based on Ubuntu, bundled with a variety of free and open-source applications. It can provide full out-of-the-box multimedia support for those who choose to include proprietary software such as multimedia codecs.

If you are using your own DNS server (I use Pihole), and you can’t get your local dns lookups to work, this may solve your problem.

Edit NetworkManager

sudo nano /etc/NetworkManager/NetworkManager.conf

Add under [main]

dns=none

File should now look something like this:

[main]
plugins=ifupdown,keyfile
dns=none

[ifupdown]
managed=false

[device]
wifi.scan-rand-mac-address=no

Reload Network Manager

sudo systemctl reload NetworkManager

Unlink resolv.conf

sudo unlink /etc/resolv.conf

Stop and Disable systemd-resolved

sudo systemctl stop systemd-resolved.service
sudo systemctl disable sytemd-resolved.service

Create new resolv.conf file:

sudo nano /etc/resolv.conf

Add:

nameserver 192.168.x.x # IP for your DNS server
options edns0 trust-ad
search example.com # Your domain

Restart the computer.