Fail2Ban is a piece of software commonly used to protect servers or websites from brute-force login attacks. It monitors logs of various services (such as SSH, FTP, Apache, etc.) and bans IP addresses that exceed a certain number of failed login attempts.
To install Fail2Ban on CentOS 8, you can follow these steps:
sudo dnf update
sudo dnf install fail2ban
sudo systemctl start fail2ban
sudo systemctl enable fail2ban
Open a terminal or SSH into your CentOS 8 server.
Update the package manager by running the following command:
Install the Fail2Ban package by running the following command:
Start the Fail2Ban service by running the following command:
Enable the Fail2Ban service to start on boot:
Fail2Ban is now successfully installed on your CentOS 8 server. The default configuration file is located at /etc/fail2ban/jail.conf, and you can customize it according to your needs.
If you want to protect specific services, you can create custom configuration files in the /etc/fail2ban/jail.d/ directory. An example configuration file for securing SSH can be created as follows:
sudo nano /etc/fail2ban/jail.d/sshd.local
Inside the file, you can add the following content:
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