Ubuntu what is listening on port 53?
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Asked By: Herminio Upton
Date created: Sat, Sep 11, 2021 6:04 PM
Date updated: Tue, Sep 13, 2022 10:48 PM
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Top best answers to the question «Ubuntu what is listening on port 53»
- Ubuntu has systemd-resolved listening on port 53 by default. 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". This article explains how to stop systemd-resolved from using port 53 on Ubuntu.