Securing a server is a top priority for any business or organization. One of the most important tools in a sysadmin’s toolkit is Fail2Ban. This guide explains what Fail2Ban is and how you can use it ...

This is a small tutorial on how to prevent brute force attacks to the SMTP server container included into Postal Server using Fail2ban. As logs are sent to stdout, it is necessary to write them to a ...

Despite mounting IIS log files and ensuring proper setup, I encountered an issue where fail2ban blocked the Exchange server's IP itself instead of the IP attempting the unauthorized access. To enhance ...

Linux is a popular operating system for servers and other devices. It is known for its stability, security, and flexibility. However, no operating system is immune to attack. One of the most common ...