APNIC DNS name servers was experiencing few Major issue related to their bind software. On this incident the PTR record for any IP address took a long time even it answer with wrong information. After reporting to APNIC Hostmaster, they took this information seriously and fix it already .
Bellow is a copy of email, which I received APNIC regarding APNIC DNS server current status:
From: APNIC HelpDesk
To: Ahamed Bauani [Member of APNIC Community]
Date: Fri, May 9, 2008 at 1:23 PM
Issue with APNIC DNS nameservers resolved
APNIC started to receive reports that our DNS nameservers were not
providing the expected answers for leaf node queries of delegated
domains after we upgraded our DNS server software on Tuesday 6 May.
After initial investigation, it was determined that the upgraded
software was the source of the problem. After contacting the vendor,
several quick-fix solutions were attempted, to no avail.
At 13:00, Friday 9 May, APNIC rolled back to the previous version of the
software, resolving the issue.
APNIC has advised the software vendor and requested escalation of the
problem while working with them to review the upgrade and seek a clear
APNIC apologies for the interruption to our services.
Asia Pacific Network Information Centre (APNIC) Tel: +61-7-3858-3100
PO Box 2131 Milton, QLD 4064 Australia Fax: +61-7-3858-3199
Level 1, 33 Park Road, Milton, QLD http://www.apnic.net
Mirror of this email copy posted by Ahamed Bauani on this blog. Special information, as this is very secretive issue, please don't disclose the details to any one whom you don't know.
Telnet Communication Limited