On 06/25/10 16:02, Andrej Podzimek wrote:
Other notes:
* dig always resolves correctly, no router's address prepended.
Could you share your dig command and output please.
Sure. Let's try www.sun.com, for example:
$ dig www.sun.com
; <<>> DiG 9.6.1-P3 <<>> www.sun.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 193
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 0
;; QUESTION SECTION:
;www.sun.com. IN A
;; ANSWER SECTION:
www.sun.com. 740 IN A 137.254.16.57
;; AUTHORITY SECTION:
sun.com. 51047 IN NS ns1.sun.com.
sun.com. 51047 IN NS ns2.sun.com.
sun.com. 51047 IN NS ns8.sun.com.
sun.com. 51047 IN NS ns3.sun.com.
;; Query time: 1 msec
;; SERVER: 2002:5f52:81a4:1::1#53(2002:5f52:81a4:1::1)
;; WHEN: Fri Jun 25 16:31:47 2010
;; MSG SIZE rcvd: 117
$ dig www.sun.com AAAA
; <<>> DiG 9.6.1-P3 <<>> www.sun.com AAAA
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1994
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;www.sun.com. IN AAAA
;; AUTHORITY SECTION:
sun.com. 892 IN SOA ns1.sun.com.
hostmaster.sun.com. 2010062402 3600 1200 1038800 900
;; Query time: 5 msec
;; SERVER: 2002:5f52:81a4:1::1#53(2002:5f52:81a4:1::1)
;; WHEN: Fri Jun 25 16:50:37 2010
;; MSG SIZE rcvd: 80
Now ping is wrong, as already mentioned:
$ ping -a www.sun.com
www.sun.com (2002:5f52:81a4:1::1) is alive
www.sun.com (137.254.16.57) is alive
* Linux and FreeBSD work fine with IPv6 on the same connection.
Do they use the same nameserver in /etc/resolv.conf?
Yes.
Capture what's happening on the network as you make the requests using
snoop or wireshark.
Tried that with ping -a www.sun.com
* ping asked for www.sun.com AAAA and received an empty response.
* ping asked for www.sun.com.podzimek.org (!!!) and received the
address of my router (which explains a lot).
The domain name will come from sysinfo SI_SRPC_DOMAIN if not set in
resolv.conf.
Our resolver does not implement RFC 1535 to maintain backward
compatibility. Thus that is why your seeing your domain traversed.
As someone already suggested, your zone for podzimek.org must have a
wildcard (*) entry in it and thus is responding to the query. Wildcards
are only intended to be used with MX records, not Address records!
* ping asked for www.sun.com A and received 137.254.16.57.
* ping sent/received ICMPv6 and IPCMv4 packets.
The conversation is attached as ping.pcap.
I don't know how the 'www.sun.com.podzimek.org' domain is constructed.
I don't have any 'search' line in /etc/resolv.conf, as already mentioned.
My /etc/defaultdomain file contains 'helium.podzimek.org'. I don't
know if this is related to host name resolution or not. The installer
created that file and I have never touched it. Anyway it's the only
file containing 'podzimek.org' in the whole /etc directory. :-)
Andrej
Yes, that is where the system domainname (SI_SRPC_DOMAIN) comes from.
--Stacey
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