On 3/8/13 2:04 AM, Steven Carr wrote:

> I'm having the same issues with zone transfers timing out, but I can
> perform queries directly to the RPZ servers, so there is nothing wrong
> from the network/firewall side of things.
> 
> sjcarr@elmo:~ $ dig +vc 1.68.10.103.in-addr.arpa.drop.rpz.spamhaus.org
> @199.168.90.51
> 
> ; <<>> DiG 9.8.3-P1 <<>> +vc
> 1.68.10.103.in-addr.arpa.drop.rpz.spamhaus.org @199.168.90.51
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13663
> ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
> ;; WARNING: recursion requested but not available
> 
> ;; QUESTION SECTION:
> ;1.68.10.103.in-addr.arpa.drop.rpz.spamhaus.org.      IN A
> 
> ;; ANSWER SECTION:
> 1.68.10.103.in-addr.arpa.drop.rpz.spamhaus.org.       0 IN CNAME .
> 
> ;; Query time: 100 msec
> ;; SERVER: 199.168.90.51#53(199.168.90.51)
> ;; WHEN: Fri Mar  8 00:56:46 2013
> ;; MSG SIZE  rcvd: 77



This shows you're at least allowed to contact their server on TCP.
What do you see if you run the axfr query manually *and* run a packet
capture for it?
Does the TCP handshake happen or not?
If yes, maybe the problem could be caused by an MTU blackhole along the
path, or something similar...
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