Tiny Linux Firewall Iptalbes Rules Documentation

Custom Rules Installation

Enhance security firewall Iptables is an extremely versatile firewall utility built for the Linux operating system. Add on iptables rules to our system firewall to use.

Open HTTP Port 80

iptables -A INPUT -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT iptables -A TLF-SYN-FLOOD -p tcp -m tcp --dport 80 -j ACCEPT iptables -I TLF-SYN-FLOOD -p tcp -m tcp --dport 80 -j ACCEPT

Open Port 81

iptables -A TLF-SYN-FLOOD -p tcp -m tcp --dport 81 -j ACCEPT iptables -I TLF-SYN-FLOOD -p tcp -m tcp --dport 81 -j ACCEPT

Open Multiple Ports

iptables -A TLF-SYN-FLOOD -p tcp -m multiport --dports 22,80,443 -j ACCEPT iptables -I TLF-SYN-FLOOD -p tcp -m multiport --sports 22,80,443 -j ACCEPT

Allow Ip Access SSH

iptables -A INPUT -p tcp -s YOUR.SERVERIP.HERE --dport 22 -j ACCEPT iptables -A INPUT -p tcp -s YOUR.HOMEIP.HERE --dport 22 -j ACCEPT

Deny ALL Access SSH
(this rule must be at the end)

iptables -A INPUT -p tcp --dport 22 -j DROP

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