(7) dns operation - SOI-Asia

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Domain Name Space Structure (root) ccTLDs jp kr cn org net gTLDs com co ad kame toshiba wide www cvs www ftp www soi www
A brief review of DNS (2/2) Server-client model authoritative servers manage DNS DB aka "nameservers" primary (master) server maintains master DB secondary (slave) servers have a copy of DB for load-balancing primary and secondary are synchronized by "zone transfer" note: both primary and secondary accept queries as working servers ("slave" does not mean backup) caching servers perform DB lookup (stub) resolvers are end clients communicate over {UDP,TCP}/{IPv4,IPv6}, port 53
Page 1 and 2: Internet Operation (7) DNS Operatio
Page 3 and 4: Overview of this lecture Prerequisi
Page 5: A brief review of DNS (1/2) DNS (Do
Page 9 and 10: Resource Records (RRs) Entity of DN
Page 11 and 12: Major resource records (2/2) PTR (P
Page 13 and 14: Important SOA Parameters (1/2) e.g
Page 15 and 16: Notes on CNAME (1/2) Another major
Page 17 and 18: Sample of complete zone file "jinme
Page 19 and 20: IPv6 transport for DNS Use IPv6 to
Page 21 and 22: Introduction to DNS operation with
Page 23 and 24: Useful tools for DNS operation with
Page 25 and 26: Output example of dig ; DiG 9.4.0a
Page 27 and 28: DNS operational considerations Lame
Page 29 and 30: Detect lame delegation with dig 1.
Page 31 and 32: Number/location of nameservers How
Page 33 and 34: BIND configurations for separation
Page 35 and 36: Advanced topics Load-balanced opera
Page 37 and 38: Assignment 1: check on your ccTLD C
Page 39: Assignment 3 Provide feedback on to

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