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bashiptables

How do I use bash to bulk add a file full of IP blocks to IPTables

How can I bulk add a text file full of IP blocks to IPTables using BASH (or another scripting language)? Or is there some other way of blocking these address ranges?

EDIT: In other words is there a way to program something to iterate through the file and build the relevant entries?

Solution

  • Could you just create a loop within your iptables config script? Something like

    #!/bin/bash
for x in $(cat ip_list.txt)
do
    iptables -A INPUT -s $x -j DROP
done

    Where your ip_list.txt file would just look like

    1.1.1.1
2.2.2.2
3.3.3.3
etc