Some dns recursive resolution issues ..
vincent.blondel at ing.be
vincent.blondel at ing.be
Mon Oct 20 08:27:25 UTC 2008
Hello,
this mail to ask you some help because I get some strange behaviour on
my public dns resolvers. Public resolution is working nice behalve for
some sites where I get SERVFAIL error ..
Last times I got this problem with .., ugc.fr and now this moring I also
get the same problem with climair.be.
I already searched a bit everywhere but nothing found right now ..
# dig @localhost climair.be in mx +trace
; <<>> DiG 9.4.2-P1 <<>> @localhost climair.be in mx +trace
; (1 server found)
;; global options: printcmd
. 14081 IN NS k.root-servers.net.
. 14081 IN NS l.root-servers.net.
. 14081 IN NS m.root-servers.net.
. 14081 IN NS j.root-servers.net.
. 14081 IN NS c.root-servers.net.
. 14081 IN NS d.root-servers.net.
. 14081 IN NS h.root-servers.net.
. 14081 IN NS f.root-servers.net.
. 14081 IN NS b.root-servers.net.
. 14081 IN NS a.root-servers.net.
. 14081 IN NS e.root-servers.net.
. 14081 IN NS g.root-servers.net.
. 14081 IN NS i.root-servers.net.
;; Received 272 bytes from 127.0.0.1#53(127.0.0.1) in 3 ms
be. 172800 IN NS A.NS.DNS.be.
be. 172800 IN NS MILANO.NS.DNS.be.
be. 172800 IN NS B.NS.DNS.be.
be. 172800 IN NS PRAGUE.NS.DNS.be.
be. 172800 IN NS C.NS.DNS.be.
be. 172800 IN NS LONDON.NS.DNS.be.
be. 172800 IN NS X.DNS.be.
be. 172800 IN NS BRUSSELS.NS.DNS.be.
be. 172800 IN NS AMSTERDAM.NS.DNS.be.
;; Received 381 bytes from 192.203.230.10#53(e.root-servers.net) in 172
ms
climair.be. 86400 IN NS ns2.dns7947.net.
climair.be. 86400 IN NS ns.dns7947.net.
;; Received 74 bytes from 195.66.241.90#53(LONDON.NS.DNS.be) in 18 ms
climair.be. 86400 IN MX 10 mail.climair.be.
climair.be. 86400 IN NS ns.climair.be.
climair.be. 86400 IN NS ns.dns7947.net.
climair.be. 86400 IN NS ns2.dns7947.net.
;; Received 176 bytes from 174.133.204.227#53(ns2.dns7947.net) in 135 ms
# dig @localhost climair.be in mx
; <<>> DiG 9.4.2-P1 <<>> @localhost climair.be in mx
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 983
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;climair.be. IN MX
;; Query time: 2 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 20 10:11:13 2008
;; MSG SIZE rcvd: 28
As you can see when I trace the complete resolution it seems to work but
when querying the usual way I get an SERVFAIL. It also happens that when
sending the request with +norec I get an answer.
Thanks to help me because our mail engineers really claim about it ...
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