Block IP Using IPTABLES

By | December 10, 2015

To block a single host, or a range of hosts from accessing a server you can use the following command(s):

## iptables -I INPUT -s 1.2.3.4 -j DROP
## iptables -I INPUT -s 1.2.0.0/16 -j DROP

Those are temporary rules and if the server is rebooted they will not be present.

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