Block 443? Not even possible since most of the portals/web servers now a days works on TCP/443
On Wed, Oct 2, 2019 at 6:57 PM Alan Clegg <[email protected]> wrote: > On 10/2/19 8:00 AM, Blason R wrote: > > Hmm that is a good idea to block the DOH queries but what I understood > > is blocking on perimeter level would be more appropriate. > > To nullify the abilities of DoH, you can block port TCP/443. > > That is pretty much guaranteed to keep DoH from working, but you may > want to test this solution in the lab before you deploy widely. > > This method of controlling DoH may have side-effects. > > AlanC > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to > unsubscribe from this list > > bind-users mailing list > [email protected] > https://lists.isc.org/mailman/listinfo/bind-users >
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