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Showing posts with label Deny all IP access to port assign exclude my IP. Show all posts
Showing posts with label Deny all IP access to port assign exclude my IP. Show all posts

Tuesday, May 8, 2012

Deny all IP access to port assigned exclude my IP


In my exaple is port 25 and my ip is 1.2.3.4:


iptables -A INPUT -p tcp --dport 25 -s 1.2.3.4 -j ACCEPT
iptables -A INPUT -p tcp --dport 25 -s 1.2.3.4 -j ACCEPT
iptables -A INPUT -p tcp --dport 25 -j DROP

Finish!

Nguyen Si Nhan