[CSF] Cài đặt Tường lửa & Bảo mật Cấu hình Máy chủ trên DirectAdmin

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ConfigServer Security & Firewall (CSF) is a suite of scripts provides:

  • A straight-forward SPI iptables firewall script;
  • A daemon process that checks for Login Authentication;
  • A Control Panel configuration interface;
  • … and much more!

The tutorial was prepared with our “CentOS 6 + DirectAdmin” template and is meant to work on our self-managed virtual private servers.

0. Preliminary requirements:

  • “CentOS 6 + DirectAdmin” template installed on server;
  • Fully updates server software (yum update).

1. CSF installation

Installation of CSF is quite straightforward because it preconfigured to work with DirectAdmin:

cd /usr/src
wget https://download.configserver.com/csf.tgz
tar -xzf csf.tgz
cd csf
sh install.sh

2. CSF configuration

After installation CSF starts in testing mode and there is couple of thing to take care of. First of all you have to login to your DirectAdmin. By default the address is:


After successfully login you should select “ConfigServer Firewall&Security”:

You should now see that there is two notices that we need to take care of. So select “ConfigServer Firewall” and then select “Firewall Configuration”:

After these changes press the button “Change” at the bottom of the page and “Restart csf+lfd” afterwards.

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