MDNS Running on UDP Port 5353

After updating macOS Big Sur to 11.6, my Mac currently is running MDNS service on UDP port 5353. Before, the upgrading to Big Sur 11.6, MDNS never showed up as a running service on my local network scans.

How do I disable MDNS on a Mac running Big Sur 11.6?

Mac mini, macOS 11.6

Posted on Sep 16, 2021 6:08 PM

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MDNS Running on UDP Port 5353

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