On Tue, 24 Jul 2012 06:11:45 -0400, Shmuel Metz (Seymour J.) wrote:
>
>>There are  sites that will do these things for you.
>
>There are sites that do DNS and whois lookups for you. There are no
>sites that analyze what your own firewall is blocking.
> 
Granted.  And the firewall design probably considers it a security feature
not to disclose to users what it blocks because otherwise they'd be able
to infer more easily what it doesn't block.

But introducing a third party helps isolate the problem.  If you can
access network-tools but network-tools can't access cbttape,
there's stronger reason to suspect cbttape.

-- gil

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