DNSmasq on Ubuntu 18/20

dnsmasq.md

DNSmasq wildcard on Ubuntu 18/20

• Install dnsmasq

sudo apt install -y dnsmasq
sudo apt install -y resolvconf

• 💡 The dnsmasq service will fail to start, you can ignore those errors for timebeing
• Disable the default systemd-resolved service

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

• 💡 You internet might not be working at this moment, we will make it work again in next steps.
• Remove this file (we will regenerate it later)

sudo rm /etc/resolv.conf

• Update /etc/NetworkManager/NetworkManager.conf file like.

[main]
plugins=ifupdown,keyfile
dns=default
rc-manager=resolvconf

[ifupdown]
managed=false

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

• Create a new file /etc/dnsmasq.d/test-tld.conf with this content

address=/test/127.0.0.1

• Restart NetworkManager which will generate a new /etc/resolv.conf file

sudo systemctl restart network-manager.service

• Finally restart dnsmasq service

sudo systemctl restart dnsmasq.service

• Test if it works with fake domains having test tld

host bogus.test

Sources

• https://askubuntu.com/questions/233195/route-complete-tld-dev-for-example-to-127-0-0-1

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