How I can block specific IP's? And as I know, if I somehow block them, it will be not blocked again after reboot. How I can make a script which will block specific IP's?

  • How I can use it – Matas Vault Jun 19 '17 at 19:13

You can add this rule. In --src you also can define various IPs seperated by , (and without spaces!)

iptables -A INPUT --src <the specific IP> -j DROP

Be careful not to lock yourself out though!

For keeping them after reboot read how-can-i-make-a-specific-set-of-iptables-rules-permanent

A quite complete and easy to maintain iptables setup I've found is

DigitalOcean: How to implement a basic firewall template with iptables on Ubuntu 14.04

  • It would be nice, if you can explain more, so I need to do this in /etc/iptables/rules.v4/v6 file? – Matas Vault Jun 20 '17 at 12:00
  • No you run it as command in the terminal. – derHugo Jun 20 '17 at 13:42

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