Re: Solid DSL gateway for server environment

On Fri, Feb 06, 2009 at 10:42:39AM +0100, Chris Thompson wrote:
> Hi all.
> I run two mail and web servers from my house on a DSL line. Until a few
> weeks ago I was on cable but a new ISP launched some good SME offers and I
> decided to make the switch.

And I drop all connections to port 25 from IP addresses, that have a
reverse DNS entry like dsl.foo.bar, dynamic.foo.bar, dhcp.foo.bar.
There is a 99.999% chance, that a botnet is talking to you.

I hope, you are using a smarthost and do not send directly.

So long,
Aiko
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