12/31/2022 0 Comments Zimbra install sh permission denied![]() ![]() How to stop systemd-resolved from using port 53 on Ubuntu In case you don't get any output, it means that port 53 is not in use. Systemd-r 610 systemd-resolve 13u IPv4 19378 0t0 TCP localhost:domain (LISTEN) Systemd-r 610 systemd-resolve 12u IPv4 19377 0t0 UDP localhost:domain To see if port 53 is in use on your system, use:Įxample with output, showing that systemd-resolved is using port 53 on a default Ubuntu 20.04 system:ĬOMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME Basically, this works on any system having systemd version 232 or newer. ![]() Ubuntu 18.04, the upcoming Ubuntu 20.10, as well as Ubuntu-based Linux distributions like Pop!_OS, Zorin OS, Elementary OS, Linux Mint, and so on. The instructions were tested on Ubuntu 20.04, but they should also work on other Ubuntu versions, e.g. This article explains how to stop systemd-resolved from using port 53 on Ubuntu. In case you want to run your own DNS server, you can't because port 53 is already in use, so you'll get an error similar to this: "listen tcp 0.0.0.0:53: bind: address already in use". Ubuntu has systemd-resolved listening on port 53 by default. ![]()
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