Tung iptables conf
Installing and Configuring Firewall
Introduction
In this page, you are going to create a firewall that allows only outside world view the web page in your server
Instruction
- Login as root user
- Clear up the rules in your iptables:
iptables -F - Change the input chain default policy to drop:
iptables -P INPUT DROP - Create a rule that allow outside to access http port only:
iptables -I INPUT -p tcp --dport http -j ACCEPT - Change the input chain default policy to drop:
iptables -P OUTPUT DROP - Create a rule that allow packets to output from http port only:
iptables -I OUTPUT -p tcp --sport http -j ACCEPT - View your web page from other virtual machine. The web page should be displayed.
- Try to ssh and ping from virtual machine to your server. All connections should be blocked.
- Save your iptables rules:
service iptables save