[128730] in cryptography@c2.net mail archive
Re: how to check if your ISP's DNS servers are safe
daemon@ATHENA.MIT.EDU (Steven M. Bellovin)
Wed Jul 23 09:30:46 2008
Date: Wed, 23 Jul 2008 03:44:36 -0400
From: "Steven M. Bellovin" <smb@cs.columbia.edu>
To: "Perry E. Metzger" <perry@piermont.com>
Cc: cryptography@metzdowd.com
In-Reply-To: <87iquym23p.fsf@snark.cb.piermont.com>
On Tue, 22 Jul 2008 10:21:14 -0400
"Perry E. Metzger" <perry@piermont.com> wrote:
>
> Niels Provos has a web page up with some javascript that automatically
> checks if your DNS caching server has been properly patched or not.
>
> http://www.provos.org/index.php?/pages/dnstest.html
>
> It is worth telling people to try.
>
Those who prefer command lines can try
dig +short porttest.dns-oarc.net TXT
--Steve Bellovin, http://www.cs.columbia.edu/~smb
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