Using IPTables rules we can block a Single IP address or a block of IP Addresses. The following command (via ssh) will drop any packet coming from the IP address 1.2.3.4 : # iptables -I INPUT -s 1.2.3.4 -j DROP or you can use append # iptables -A INPUT -s 1.2.3.4 -j DROP How To Block Subnet…
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