I've searched the forums, but cannot find my answer. I found that OpenDNSUpdater uses TCP 443, which is fine. But I see denied traffic in my firewall logs showing that it is trying to use TCP port 1. Any thoughts?
Deny tcp src inside:192.168.2.28/53372 dst outside:18.104.22.168/1
If this is truly required, what is the required destination network range?
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