>[snip]
> ipchains -I input -j REJECT -p tcp -s 10.11.11.0/0 -d
reject_everything_else/0 25
>

>When you say "reject_everything_else/0", you mean you're using CIDR
>like 1.2.3.4/0?

>The "/x" is the mask indicating the network size, e.g. a netmask of
>24 is a netmask of 255.255.255.0.  When you say a.b.c.d/0, you're
>really saying 0.0.0.0/0, i.e. the whole internet.  Probably not
>what you want.

I am sure I have it wrong. That is why I made the post:)

I need to stop my server from talking to port 25, except the few networks I
relay to.


??



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