How to Install and Configure CSF Firewall on Linux

Installing and Configuring CSF in Linux

1. Step 1 – Download CSF. # cd /usr/src # wget https://download.configserver.com/csf.tgz.
2. Step 2 – Extract the CSF tarball. # tar xzf csf.tgz # cd csf.
3. Step 3 – Run the CSF Installation Script. ...
4. Step 4: Disable Firewall and Configure CSF. ...
5. Step 5 – Restart and Test CSF.

1. What is CSF & LFD install and configure both on the server?
2. What is CSF firewall?
3. How does CSF firewall work?
4. Where is CSF conf?
5. What is CSF in Linux?
6. What is Lfd in Linux?
7. How do I open ports in CSF firewall?
8. What is CSF command?
9. How do I add CSF to WHM?
10. How do I disable CSF firewall?
11. How do I update CSF?
12. What is CSF & LFD?

What is CSF & LFD install and configure both on the server?

CSF is a feature-rich firewall application, if configured right it will do excellent to protect your server, we will be able to keep accurate, real-time and reliable control of everything that happens within CentOS, CSF has many features and can support web-based management tools like cPanel / WHM, DirectAdmin and ...

What is CSF firewall?

Config Server Firewall (CSF) is a Stateful Packet Inspection (SPI) firewall, Login/Intrusion Detection and Security application for Linux servers. It's is a security tool that can protect your server against attacks, such as brute force, and improve server security.

How does CSF firewall work?

CSF configures your server's firewall to lock down public access to services and only allow certain connections, such as logging in to FTP, checking email, or loading websites. ... LFD watches your user activity for excessive login failures which are commonly seen during brute force attacks.

Where is CSF conf?

You need to edit the conf file for enabling it. All cofiguration options are located under the directory “/etc/csf” .

What is CSF in Linux?

ConfigServer Firewall (CSF) is an advanced firewall suite for Linux systems that enhances the security on your Server. It also has the Login Failure Daemon (LFD) process that regularly scans for failed login attempts on your Server and takes action against the offending IP Addresses.

What is Lfd in Linux?

Short for Login Failure Daemon, LFD is a process that's part of the CSF (ConfigServer Security & Firewall) that periodically checks for potential threats to a server. LFD looks for such attacks as brute-force login attempts and if found blocks the IP address attempting to attack that server.

How do I open ports in CSF firewall?

Steps to open port in CSF

1. Login to the server using the SSH.
2. Open the configuration file of the CSF as follows. # vi /etc/csf/csf.conf.
3. Add the required ports to the csf.conf file. # Allow incoming TCP ports. ...
4. Restart the CSF for the changes to take effect. Run the below command to restart the CSF.

What is CSF command?

CSF Firewall command line

To get the list of all options please use this commands csf --help man csf Configuration location is in the folder /etc/csf/ Main configuration file: /etc/csf/csf. conf Enable CSF Firewall csf -e Disable CSF […]

How do I add CSF to WHM?

To install CSF, perform the following steps:

1. Log in to your server as the root user via SSH.
2. Run the cd /root command to change to the root directory.
3. Run the tar -xzf csf. ...
4. Run the cd csf command to change directories.
5. To begin the CSF installation, run the ./install.cpanel.sh command.

How do I disable CSF firewall?

To Disable CSF

1. via command-line. Log into your server via SSH as the root user, then run the following command: # csf -x.
2. via WHM. Log into WHM. Navigate to ConfigServer Security & Firewall. ...
3. via command-line. Log into your server via SSH as the root user, then run the following command: # csf -e.
4. via WHM. Log into WHM.

How do I update CSF?

what commands to do to upgrade ConfigServer Security & Firewall? CSF/LFD runs auto-updates. If auto-updates are not working, it might mean that you are missing required perl modules. Run the suggested by @ditto command to see what is missing and fix it.

What is CSF & LFD?

ConfigServer Security & Firewall (CSF) is a Stateful Packet Inspection (SPI) firewall, login/intrusion detection, and security application for Linux servers provided by ConfigServer. Login Failure Daemon (LFD) is a daemon process that runs on our servers, which uses CSF for server security.