V4(0.0.0.0:53)" part (especially the
:53) and the "
Only one usage of each socket address..." or "
Address already in use" part. Different operating systems may produce slightly different messages.
dnsmasq. This utility is intended to let folks with small home LANs give intelligible names to their computers, printers, TVs, DVRs, mobile devices, and other Internet-enabled devices, rather than having to reference them by numeric IP address. You may instead have a distribution (for example Ubuntu 18.04) that uses
systemd-resolvedfor this purpose. We'll generically call this dns caching.
/etc/NetworkManager/NetworkManager.confand add the following line to the
sudo rm /etc/resolv.conf
sudo service network-manager restart
/etc/NetworkManager/NetworkManager.conf. To see if it's there, start a terminal window and type the following command:
sudoand type in your password to get administrative privilege. (If you can't, show these instructions to your system administrator and have him follow them for you.)
subl, whatever. The important thing is not which text editor you choose, it's how you start it:
dnsmasqthan MASQ Node, or if you want to try the Complicated And Annoying solution instead, just bring up that same file in your text editor again (don't forget the
sudo), move the hash mark from the
dns=dnsmasqline to the
dns=defaultline, so that it looks like this: