nanog mailing list archives
v4/v6 dns thoughts?
From: Joe Pruett <joey () q7 com>
Date: Tue, 09 Aug 2011 11:47:37 -0700
as i'm rolling v6 into my world, i'm not sure which way to go with reverse dns conventions. for forward i'm doing things like: foo.example.com a 1.1.1.1 foo.example.com aaaa 1000::1.1.1.1 foo.v4.example.com a 1.1.1.1 foo.v6.example.com aaaa 1000::1.1.1.1 so i can use a foo.v4/v6 hostname if i need to specify transit behavior. but for reverse i'm not sure if i want to map it like: 1.1.1.1.in-addr.arpa ptr foo.example.com. 1.0.1.0.1.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.ip6.arpa ptr foo.example.com or: 1.1.1.1.in-addr.arpa ptr foo.v4.example.com. 1.0.1.0.1.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.ip6.arpa ptr foo.v6.example.com being able to just use foo.example.com for authentication purposes (sendmail, nfs, etc) is nice. but also knowing when incoming is v4 or v6 by just looking at the dns lookup (for tools that do reverse lookup for you) is also nice. what are you doing? which way makes more sense to you?
Current thread:
- v4/v6 dns thoughts? Joe Pruett (Aug 09)
- Re: v4/v6 dns thoughts? Jeroen Massar (Aug 09)
- Re: v4/v6 dns thoughts? Owen DeLong (Aug 09)
- Re: v4/v6 dns thoughts? Landon Stewart (Aug 09)
- RE: v4/v6 dns thoughts? Blake T. Pfankuch (Aug 09)
- Re: v4/v6 dns thoughts? Andrew Parnell (Aug 10)
- Re: v4/v6 dns thoughts? Måns Nilsson (Aug 10)
- Re: v4/v6 dns thoughts? Owen DeLong (Aug 11)
- Re: v4/v6 dns thoughts? Landon Stewart (Aug 09)