8 commits

Author	SHA1	Message	Date
Michał Kępień	33350626f9	Track forwarder timeouts in fetch contexts ... Since following a delegation resets most fetch context state, address marks (FCTX_ADDRINFO_MARK) set inside lib/dns/resolver.c are not preserved when a delegation is followed. This is fine for full recursive resolution but when named is configured with "forward first;" and one of the specified forwarders times out, triggering a fallback to full recursive resolution, that forwarder should no longer be consulted at each delegation point subsequently reached within a given fetch context. Add a new badnstype_t enum value, badns_forwarder, and use it to mark a forwarder as bad when it times out in a "forward first;" configuration. Since the bad server list is not cleaned when a fetch context follows a delegation, this prevents a forwarder from being queried again after falling back to full recursive resolution. Yet, as each fetch context maintains its own list of bad servers, this change does not cause a forwarder timeout to prevent that forwarder from being used by other fetch contexts.	2019-01-08 08:29:54 +01:00
Ondřej Surý	55a10b7acd	Remove $Id markers, Principal Author and Reviewed tags from the full source tree	2018-05-11 13:17:46 +02:00
Ondřej Surý	843d389661	Update license headers to not include years in copyright in all applicable files	2018-02-23 10:12:02 +01:00
Mark Andrews	0c27b3fe77	4401. [misc] Change LICENSE to MPL 2.0.	2016-06-27 14:56:38 +10:00
Automatic Updater	70e5a7403f	update copyright notice	2007-06-19 23:47:24 +00:00
Automatic Updater	ec5347e2c7	update copyright notice	2007-06-18 23:47:57 +00:00
Mark Andrews	3b7dadafad	update copyrights	2004-03-05 12:46:14 +00:00
Brian Wellington	dcc6bde0a3	Added a system test for selective forwarding.	2000-08-24 22:23:46 +00:00