On Jul 19 2011, mailsecurity wrote:

All,

anyone experiencing the same behavior?

Seen on
BIND 9.5.2-P2 and BIND 9.8.0-P4



ns11:~ # nslookup -querytype=A xserv.ins.dell.com.
.....
Non-authoritative answer:
Name:   xserv.ins.dell.com
Address: 143.166.148.118

All ok.

ns11:~ # nslookup -querytype=AAAA xserv.ins.dell.com.
.....
** server can't find xserv.ins.dell.com.: NXDOMAIN

Now even the A queries fail.

ns11:~ # nslookup -querytype=A xserv.ins.dell.com.
.....
** server can't find xserv.ins.dell.com.: NXDOMAIN

Keeps failing until TTL timeout or rndc flushname xserv.ins.dell.com.
ns11:~ # nslookup -querytype=A xserv.ins.dell.com.
.....
Non-authoritative answer:
Name:   xserv.ins.dell.com

Address: 143.166.148.118

Yes, we had this reported last month (for premier.dell.co.uk which
CNAME chains to vandom.ins.dell.com, but the effect is exactly the same).

We reported it to dnsad...@dell.com on 28 June. Deafening silence.

They should be returning "nodata" rather than NXDOMAIN for the AAAA
query, of course.

--
Chris Thompson
Email: c...@cam.ac.uk
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