Hi, I understand that I can configure a global timeout for resolving recursive queries (resolver-query-timeout) but find that I cannot configure the timeout for an individual query used during DNS resolution.
For testing I configured one unreachable forwarder (and enabled forward only) and saw (tcpdump) that BIND (9.10.6-P1) is first trying two queries with EDNS which each seems to have a timeout of 1.2s. Afterwards queries without ENDS are sent which seem to have a timeout of 1.6s, then 3.2s, then 6.4s, then 9s, finally the maximum (=total) resolver-query-timeout of 30s is reached. Is the timeout behaviour documented anywhere (similar to a stub resolver or dig, i.e. how long are timeouts, how many tries per server etc). If someone did find a logging setting that shows which servers are used when recursing (forwarding or delegations) to find a response (and when the individual queries time out) that would be helpful as well. Regards Tom
_______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
