On Sat, Mar 22, 2014 at 02:59:20AM +0100, Lennart Poettering wrote:
> No, firewalls don't do DNS-based filtering, since it's a security nightmare.

Lennart, this isn't true as a general statement. Both Juniper and Cisco
firewalls support FQDN-based access rules. Looks like Palo Alto Networks too
although I have not used those.

Of course, this doesn't demonstrate that it's a good idea, just that it is
actually something people use and which there is demand for. If anything,
though, I think this makes me less concerned about deprecating tcp_wrappers
since people can find equivalent functionality elsewhere if they want it.
(And, I think you could do it on Linux with dnsmasq's ipset functionality if
you really wanted to.)


-- 
Matthew Miller    --   Fedora Project    --    <mat...@fedoraproject.org>
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