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- Posted on
March 28, 2007, 8:23 am
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incoming connection from whole C (/24) ranges with iptables?
Let's have an iptables firewall filtering connections for two public
IP addresses: 18.104.22.168 and 22.214.171.124
If an incoming connection from 126.96.36.199 comes to port 25 at 188.8.131.52, I
would like to open/unblock port 25 at 184.108.40.206 for the whole 9.8.7/24
(There is some reason why I need two separate public addresses -- I
would like to try something like transparent greylisting on the
firewall -- while the ordinary spambots tend to target the primary MX
OR the secondary MX ONLY, the full-fledged SMTP host tries both MX's)
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