How can I set up advanced rules in iptables?
To set up advanced rules in iptables, you can use various options like specifying protocols, ports, and IP addresses.
Can you give me an example of a rule that blocks a specific IP?
Sure! You can use the command: iptables -A INPUT -s 192.168.1.100 -j DROP
to block traffic from that IP.
What if I want to allow traffic from a specific port?
You can allow traffic from a specific port using: iptables -A INPUT -p tcp --dport 80 -j ACCEPT
for HTTP traffic.
How do I save these rules so they persist after a reboot?
To save your iptables rules, you can use the command iptables-save > /etc/iptables/rules.v4
and restore them on boot.
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