Comcast DNS Servers are Adding hosts from my private LAN.

Comcast, how do I prevent your DNS servers from adding hosts that are on my private LAN?

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BruceW

Gold Problem Solver

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27.4K Messages

5 years ago

What are you seeing that leads you to believe Comcast is adding hosts from your LAN to its DNS?

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swhi

Visitor

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3 Messages

xxx.xxx.168.192.in-addr.arpa domain name pointer MoviRu.hsd1.or.comcast.net.

Using host command, in case it's not clear, actual private address redacted from this post.

5 years ago

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BruceW

Gold Problem Solver

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27.4K Messages

5 years ago

Could you post the "host" command line you are using, and the OS name and version?

It isn't necessary to redact private IP addresses like 192.168.x.y as they cannot be reached from the Internet. See https://en.wikipedia.org/wiki/Private_network

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rickmac

Contributor

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1K Messages

5 years ago

More than likely, your router is adding these DNS entries to itself

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