Difference between revisions of "Tung httpd conf"
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<b><big><big>Installing and Configuring Firewall</big></big></b> | <b><big><big>Installing and Configuring Firewall</big></big></b> | ||
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<b><big>Introduction</big></b> | <b><big>Introduction</big></b> | ||
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#Create a rule that allow packets to output from http port only: <b><code><font color=green > iptables -I OUTPUT -p tcp --sport http -j ACCEPT</font></code></b> | #Create a rule that allow packets to output from http port only: <b><code><font color=green > iptables -I OUTPUT -p tcp --sport http -j ACCEPT</font></code></b> | ||
#View your web page from other virtual machine. The web page should be displayed. | #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. | + | #Try to <b>ssh</b> and <b>ping</b> from virtual machine to your server. All connections should be blocked. |
#Save your iptables rules: <b><code><font color=green >service iptables save</font></code></b> | #Save your iptables rules: <b><code><font color=green >service iptables save</font></code></b> |
Revision as of 17:25, 27 July 2011
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