dns: restore dns query cache ttl

Fixes: #57636

Co-authored-by: Robert Nagy <[email protected]>
PR-URL: #57640
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Robert Nagy <[email protected]>
Reviewed-By: Tim Perry <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: 2 people

src/cares_wrap.cc

@@ -711,6 +711,7 @@ void ChannelWrap::Setup() {
   options.sock_state_cb_data = this;
   options.timeout = timeout_;
   options.tries = tries_;
+  options.qcache_max_ttl = 0;
 
   int r;
   if (!library_inited_) {