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Configure local DNS server to serve *.localhost domains

Configure local wildcard DNS server

  1. Install Dnsmasq: sudo apt-get install dnsmasq

  2. Since Ubuntu's NetworkManager uses dnsmasq, and since that messes things up a little for us, open up /etc/NetworkManager/NetworkManager.conf and comment out (#) the line that reads dns=dnsmasq. Restart NetworkManager afterwards: sudo systemctl restart NetworkManager.

  3. Make sure Dnsmasq listens to local DNS queries by editing /etc/dnsmasq.conf, and adding the line listen-address=127.0.0.1.

  4. Create a new file in /etc/dnsmasq.d (eg. /etc/dnsmasq.d/localhost), and add the line address=/localhost/127.0.0.1 to have dnsmasq resolve requests for *.localhost domains.

  5. Restart Dnsmasq: sudo systemctl restart dnsmasq.

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