Florian Weimer wrote:
* Michael Ströder:
Hmm, I will drop it since the same functionality can be easily achieved on
this platform by using local kernel firewall.
The DNS-based access rules are not available as part of the kernel
firewall.
Good point.
For some odd reasons, a lot of people think this
tcpwrappers feature is insecure,
Me too. ;-)
but it seems a rather convenient way
to get *additional* security in cases where you have proper reverse
lookup (with matching forward lookup) and fragmented address space
that does not lend itself easily to writing access rules.
But it adds two additional DNS lookups to the game.