July 22, 2021

What are the common dns ips that you use to teach out for resolution?

So we have a bunch of dns rules on our checkpoints that go out to 8.8.8.8, 8.8.4.4, 4.4.2.2, some open rules and some qwest dns ips. We are auditing our rulebase and came to a conclusion that regarding outgoing dns traffic we need to have just 1 rule for the internet firewall (we are starting auditing with the internet firewall first) and need to know what dns ips we should use that are commonly used by everyone else? We will then make that list of dns ips as the authorized ips for dns resolution.

Thank you.

Comments

techtornado

I prefer Cloudflare and Quad9 for public dns

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