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.. _mod-edns_keepalive:
EDNS keepalive
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The ``edns_keepalive`` module implements :rfc:`7828` for *clients* connecting to Knot Resolver via TCP and TLS.
Note that client connections are timed-out the same way *regardless* of them sending the EDNS option;
the module just allows clients to discover the timeout.
When connecting to servers, Knot Resolver does not send this EDNS option.
It still attempts to reuse established connections intelligently.
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