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Re: [Asrg] Re: DNSBL BCP v.2.0

2007-02-15 13:44:04

On Feb 15, 2007, at 12:07 PM, Stephanie Erin Daugherty wrote:


A standard "listed" test entry and standard "not listed" test entry are a good way to test that. Standard practice right now usually uses 2.0.0.127.dnsbl.example.com or some variant as the "always listed" address - adding a requirement for a "never listed" address would be a good way to implement an additional check to make sure the DNSBL is still active, and hopefully that it's not listing the world. I'm not sure that we have a standard convention for a "never listed" test address (one that should always return a whitelist record or NXDOMAIN depending on the type of list.)

1.0.0.127.

There. We have an always listed and a never listed address that are already done by the vast majority of blacklists[1]. All we need is client side support for those two checks and we're done.

Cheers,
  Steve

[1] OK, I run two blacklists and neither of them supports both of those records, but they're kinda special cases...

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