📄 rfc1995.txt
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RFC 1995 Incremental Zone Transfer in DNS August 1996 One of the IP addresses of JAIN-BB.JAIN.AD.JP. is changed. JAIN.AD.JP. IN SOA ns.jain.ad.jp. mohta.jain.ad.jp. ( 3 600 600 3600000 604800) IN NS NS.JAIN.AD.JP. NS.JAIN.AD.JP. IN A 133.69.136.1 JAIN-BB.JAIN.AD.JP. IN A 133.69.136.3 IN A 192.41.197.2 The following IXFR query +---------------------------------------------------+ Header | OPCODE=SQUERY | +---------------------------------------------------+ Question | QNAME=JAIN.AD.JP., QCLASS=IN, QTYPE=IXFR | +---------------------------------------------------+ Answer | <empty> | +---------------------------------------------------+ Authority | JAIN.AD.JP. IN SOA serial=1 | +---------------------------------------------------+ Additional | <empty> | +---------------------------------------------------+ could be replied to with the following full zone transfer message: +---------------------------------------------------+ Header | OPCODE=SQUERY, RESPONSE | +---------------------------------------------------+ Question | QNAME=JAIN.AD.JP., QCLASS=IN, QTYPE=IXFR | +---------------------------------------------------+ Answer | JAIN.AD.JP. IN SOA serial=3 | | JAIN.AD.JP. IN NS NS.JAIN.AD.JP. | | NS.JAIN.AD.JP. IN A 133.69.136.1 | | JAIN-BB.JAIN.AD.JP. IN A 133.69.136.3 | | JAIN-BB.JAIN.AD.JP. IN A 192.41.197.2 | | JAIN.AD.JP. IN SOA serial=3 | +---------------------------------------------------+ Authority | <empty> | +---------------------------------------------------+ Additional | <empty> | +---------------------------------------------------+Ohta Standards Track [Page 5] RFC 1995 Incremental Zone Transfer in DNS August 1996 or with the following incremental message: +---------------------------------------------------+ Header | OPCODE=SQUERY, RESPONSE | +---------------------------------------------------+ Question | QNAME=JAIN.AD.JP., QCLASS=IN, QTYPE=IXFR | +---------------------------------------------------+ Answer | JAIN.AD.JP. IN SOA serial=3 | | JAIN.AD.JP. IN SOA serial=1 | | NEZU.JAIN.AD.JP. IN A 133.69.136.5 | | JAIN.AD.JP. IN SOA serial=2 | | JAIN-BB.JAIN.AD.JP. IN A 133.69.136.4 | | JAIN-BB.JAIN.AD.JP. IN A 192.41.197.2 | | JAIN.AD.JP. IN SOA serial=2 | | JAIN-BB.JAIN.AD.JP. IN A 133.69.136.4 | | JAIN.AD.JP. IN SOA serial=3 | | JAIN-BB.JAIN.AD.JP. IN A 133.69.136.3 | | JAIN.AD.JP. IN SOA serial=3 | +---------------------------------------------------+ Authority | <empty> | +---------------------------------------------------+ Additional | <empty> | +---------------------------------------------------+ or with the following condensed incremental message: +---------------------------------------------------+ Header | OPCODE=SQUERY, RESPONSE | +---------------------------------------------------+ Question | QNAME=JAIN.AD.JP., QCLASS=IN, QTYPE=IXFR | +---------------------------------------------------+ Answer | JAIN.AD.JP. IN SOA serial=3 | | JAIN.AD.JP. IN SOA serial=1 | | NEZU.JAIN.AD.JP. IN A 133.69.136.5 | | JAIN.AD.JP. IN SOA serial=3 | | JAIN-BB.JAIN.AD.JP. IN A 133.69.136.3 | | JAIN-BB.JAIN.AD.JP. IN A 192.41.197.2 | | JAIN.AD.JP. IN SOA serial=3 | +---------------------------------------------------+ Authority | <empty> | +---------------------------------------------------+ Additional | <empty> | +---------------------------------------------------+Ohta Standards Track [Page 6] RFC 1995 Incremental Zone Transfer in DNS August 1996 or, if UDP packet overflow occurs, with the following message: +---------------------------------------------------+ Header | OPCODE=SQUERY, RESPONSE | +---------------------------------------------------+ Question | QNAME=JAIN.AD.JP., QCLASS=IN, QTYPE=IXFR | +---------------------------------------------------+ Answer | JAIN.AD.JP. IN SOA serial=3 | +---------------------------------------------------+ Authority | <empty> | +---------------------------------------------------+ Additional | <empty> | +---------------------------------------------------+8. Acknowledgements The original idea of IXFR was conceived by Anant Kumar, Steve Hotz and Jon Postel. For the refinement of the protocol and documentation, many people have contributed including, but not limited to, Anant Kumar, Robert Austein, Paul Vixie, Randy Bush, Mark Andrews, Robert Elz and the members of the IETF DNSIND working group.9. References [NOTIFY] Vixie, P., "DNS NOTIFY: A Mechanism for Prompt Notification of Zone Changes", RFC 1996, August 1996. [STD13] Mockapetris, P., "Domain Name System", STD 13, RFC 1034 and RFC 1035), November 1987.10. Security Considerations Though DNS is related to several security problems, no attempt is made to fix them in this document. This document is believed to introduce no additional security problems to the current DNS protocol.Ohta Standards Track [Page 7] RFC 1995 Incremental Zone Transfer in DNS August 199611. Author's Address Masataka Ohta Computer Center Tokyo Institute of Technology 2-12-1, O-okayama, Meguro-ku, Tokyo 152, JAPAN Phone: +81-3-5734-3299 Fax: +81-3-5734-3415 EMail: mohta@necom830.hpcl.titech.ac.jpOhta Standards Track [Page 8] ⌨️ 快捷键说明
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