From: Yoshitaka Aharen Date: Thu, 13 Jun 2013 05:58:32 +0000 (+0900) Subject: [2796] revise a note for qryrecursion X-Git-Tag: bind10-1.2.0beta1-release~409^2 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3174827557c878ee62a0624aa3ac93cc3fd37bef;p=thirdparty%2Fkea.git [2796] revise a note for qryrecursion --- diff --git a/src/bin/auth/b10-auth.xml.pre b/src/bin/auth/b10-auth.xml.pre index 02850690bd..2bf20c8310 100644 --- a/src/bin/auth/b10-auth.xml.pre +++ b/src/bin/auth/b10-auth.xml.pre @@ -250,10 +250,15 @@ - RD bit is not specific to queries (requests of opcode 0), but - qryrecursion is limited to queries because RD bit is - meaningless for the other opcodes and they are passed to another - BIND 10 module such as b10-ddns. + The qryrecursion counter is limited to queries + (requests of opcode 0) even though the RD bit is not specific + to queries. In practice, this bit is generally just ignored for + other types of requests, while DNS servers behave differently + for queries depending on this bit. It is also known that + some authoritative-only servers receive a non negligible + number of queries with the RD bit being set, so it would be + of particular interest to have a specific counters for such + requests.