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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical new reverse-DNS generation process at APNIC
Reverse-DNS changes for 61/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 2001:0200::/23 and 2001:0C00::/23 APNIC has converted its DNS generation processes to a new system. This is in preparation for conversion to RPSL based whois services, as APNIC generates authoritative in-addr.arpa, ip6.arpa and ip6.int reverse-DNS records directly from whois information. This conversion will also improve reverse-DNS services for the IPv4 and IPv6 ranges APNIC has responsibility for, by providing faster resolution of reverse-DNS lookup, faster termination of lookup for non-existing domains, and a more stable DNS generation process. The reverse zone of a /8 for IPv4, or a pair of /24 for IPv6, now contain all children objects directly, and intermediate zones (which we used to assert down to the edge resource records in some cases) have been withdrawn. For all IPv4 and IPv6 ranges APNIC is authoritative for, the reverse DNS zones are now generated in a more efficient manner. Updates will propagate from whois domain objects to DNS more effectively. At present APNIC re-generates the reverse DNS zones on a 2 hour cycle, every day, and only increments the zone serial on changes to resource records. This is in line with the zonefiles asserted by RIPE NCC and ARIN, and will provide a more uniform global DNS service in respect of reverse-DNS. Kind regards, George Michaelson -- George Michaelson | APNIC Email: [email protected] | PO Box 2131 Milton QLD 4064 Phone: +61 7 3858 3100 | Australia Fax: +61 7 3858 3199 | http://www.apnic.net |