[120319] in North American Network Operators' Group
Re: Arrogant RBL list maintainers
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Wed Dec 16 08:23:21 2009
To: Mike Lieman <mikelieman@gmail.com>
In-Reply-To: Your message of "Wed, 16 Dec 2009 07:06:55 EST."
<43661d390912160406w1bb31efcyb9c5df0a15493d22@mail.gmail.com>
From: Valdis.Kletnieks@vt.edu
Date: Wed, 16 Dec 2009 08:21:16 -0500
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
--==_Exmh_1260969676_3827P
Content-Type: text/plain; charset=us-ascii
On Wed, 16 Dec 2009 07:06:55 EST, Mike Lieman said:
> What's the word for 'mail server' in Lower Sorbian, and does your algorithm
> properly detect it in a hostname? See the problem here?
When the hostname at that IP address is exactly one incremented character
different than the preceding address, and one decremented character different
than the following address, and that pattern holds across a /24, they're
probably not mail servers. Nobody has 256 'frzzmabs-1'..'frzzzmabs-256'
servers in the same /24 for *anything* user-facing.
--==_Exmh_1260969676_3827P
Content-Type: application/pgp-signature
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
Comment: Exmh version 2.5 07/13/2001
iD8DBQFLKN7McC3lWbTT17ARAlz2AKCyXeNFXNSYX9J1oA3xqw7tzs60FgCgvavL
w/mqi1SFNgkL3kiP6UR5o8A=
=jz98
-----END PGP SIGNATURE-----
--==_Exmh_1260969676_3827P--
