[Pdns-users] "Additional Section" with A records in NS lookups missing?
John Morris
pdns at butchwax.com
Tue Mar 21 22:22:52 UTC 2006
Hi,
Been using self-rolled pdns rpms with ldap backend now since 2003, and
it's really been treating me right.
I've just noticed a problem with my domain. The nifty tool at
http://www.dnsreport.com/ tests for A records returned on NS queries.
See the following (edited) output from dig; powerdns.com does,
zultron.com doesn't:
$ dig ns powerdns.com @dns-eu1.powerdns.net.
[...]
;; QUESTION SECTION:
;powerdns.com. IN NS
;; ANSWER SECTION:
powerdns.com. 86400 IN NS dns-eu1.powerdns.net.
powerdns.com. 86400 IN NS dns-eu2.powerdns.net.
;; ADDITIONAL SECTION:
dns-eu1.powerdns.net. 86400 IN A 213.244.168.217
dns-eu2.powerdns.net. 300 IN A 212.72.55.217
[...]
$ dig ns zultron.com @ns1.zultron.com
[...]
;; QUESTION SECTION:
;zultron.com. IN NS
;; ANSWER SECTION:
zultron.com. 3600 IN NS ns2.zultron.com.
zultron.com. 3600 IN NS ns1.zultron.com.
[...]
Mine's missing the "ADDITIONAL SECTION" that gives the A records. I've
read that this is technically legal, but requires a separate A record
lookup to finish the NS query.
I also see that the powerdns.com nameservers are running pdns 2.9.19 and
2.9.17, where I'm running 2.9.19 and 2.9.16.
Where's the switch to turn this on? Thanks in advance for helping. I
wasn't sure what keywords to search the list for, so apologies for
repeating anything.
John
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