Are you sure DNS over TCP were disabled by default? Were it not some
local applied policy?
TCP is mandatory for a long time, I am not even sure it ever was just
optional. Can you share where this is set and where it can be checked,
whether TCP is enabled already?
Great test examples are:
-
On 08.04.24 10:32, Petr Menšík wrote:
Are you sure DNS over TCP were disabled by default? Were it not some
local applied policy?
TCP is mandatory for a long time, I am not even sure it ever was just
optional.
AFAIK it was never optional.
While the EDNS reduces the need for TCP usage, it SHOU
On Mon, 8 Apr 2024, Petr Menšík wrote:
Are you sure DNS over TCP were disabled by default? Were it not some
local applied policy?
Sorry, this is missunderstanding, this was a local firewall problem that
did not allow a TCP DNS querries for Windows machines. This setup was
happily working fo