[Pdns-users] mx failure scenario
bert.hubert at netherlabs.nl
Thu Dec 21 21:40:09 UTC 2006
On Thu, Dec 21, 2006 at 10:00:30AM -0800, gnu not unix wrote:
> I have a problem with my parent zone (sf.ca.us), where they
> are running powerdns (they used to run bind), and this change
> seems to have resulted in my loss of email connectivity.
Something definitely is odd:
$ dig +norecurs -t mx wraith.sf.ca.us @B.AUTH-NS.SONIC.NET.
; <<>> DiG 9.3.2 <<>> +norecurs -t mx wraith.sf.ca.us @B.AUTH-NS.SONIC.NET.
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42774
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 2
;; QUESTION SECTION:
;wraith.sf.ca.us. IN MX
;; AUTHORITY SECTION:
sf.ca.us. 259200 IN SOA ns1.sonic.net. hostmaster.sonic.net. 2006122102 3600 300 1209600 3600
wraith.sf.ca.us. 3600 IN NS wraith.sf.ca.us.
wraith.sf.ca.us. 3600 IN NS smidge.wraith.sf.ca.us.
;; ADDITIONAL SECTION:
wraith.sf.ca.us. 3600 IN A 220.127.116.11
smidge.wraith.sf.ca.us. 3600 IN A 18.104.22.168
;; Query time: 163 msec
;; SERVER: 22.214.171.124#53(126.96.36.199)
;; WHEN: Thu Dec 21 22:33:18 2006
;; MSG SIZE rcvd: 169
This SOA record should not be there. I have no easy explanation why it is
You might want to ask your ISP to check if their domains table is up to
One thing that looks odd, but is completely legal, is that you have an NS
record pointing to the name of your zone. Conceivably, this might be
confusing PowerDNS, as this is somewhat rare.
People mostly have:
wraith.sf.ca.us IN NS ns1.wraith.sf.ca.us
wraith.sf.ca.us IN NS smidge.wraith.sf.ca.us
Although this *should* not be the problem. Perhaps it is in your power to
give your nameserver a different name.
http://www.PowerDNS.com Open source, database driven DNS Software
http://netherlabs.nl Open and Closed source services
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