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[CSF] ConfigServer Security & Firewall installation on DirectAdmin

ValentineValentine Administrator
edited February 25 in Performance and Security


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 7 + DirectAdmin" template and is meant to work on our self-managed virtual private servers.

0. Preliminary requirements:
  • "CentOS 7 + 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 are a couple of things to take care of. First of all, you have to log in to your DirectAdmin. By default, the address is:

http://your-server-ip:2222

After successfully login you should select "ConfigServer Firewall&Security":



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



First, we will turn off testing mode:



And then we should restrict syslog/rsyslog access:



After these changes press the button "Change" at the bottom of the page and "Restart csf+lfd" afterward.

That is it, now you have a fully working ConfigServer firewall. For more information regarding CSF please visit their Read me page.
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