216.95.201.18, 216.95.201.31, etc. Let's say I want to block him totally at the mail server
using iptables before he gets to Sendmail.
I would do:
iptables -A FORWARD 216.95.201.0/24 -p tcp --dport 25 -j DROP
Does that look right?
Thank you,
-Scott
At 12:48 AM 3/2/2003 -0600, you wrote:
209.8.161.0/24 will get 209.8.161.0 - 209.8.161.255. /16 will get 209.8.0.0 - 209.8.255.255
Is iptables running on your firewall, with the mail server behind it, or on your mail server? If the former, you might need to add this on the FORWARD chain, not INPUT.
Keep in mind that you're blocking all services with that statement. add -p tcp --dport 25 to just block smtp.
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