How to Drop or Block Incoming/Attackers IP Address Using null route

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Instead of using iptables firewall to block the attacker’s ip, you also can use null route. To implement this on your linux system, you just need to run below command :

Reject the target ip address:

    [[email protected] ~]# route add -host IP-ADDRESS reject
    
    [[email protected] ~]# route add -host 192.168.2.5 reject
    


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