SSHGuard is an open-source daemon that shields hosts from brute-force attacks. It accomplishes this through monitoring and aggregation of system logs, detecting attacks, and blocking attackers using one of the Linux firewall backends: iptables,
SSH banner warnings are necessary when companies or organizations want to display a stern warning to discourage unauthorized parties from accessing a server. These warnings are displayed just before the password prompt so that
It is every developer’s desire to deploy secure web applications which are safe from threats. On most occasions, this is effortless said than done. The frequency of websites being hacked keeps rising as hackers
Securing your web server is always one of the key factors that you should consider before going live with your website. A security certificate is critical for securing traffic sent from web browsers to
Written in Python, Fail2ban is a free and open-source Intrusion Prevention System (IPS) that protects the server against brute-force attacks. After a specified number of incorrect password attempts, the client’s IP address is banned
Port Knocking is a nifty technique of controlling access to a port by only allowing legitimate users access to the service running on a server. It works in such a way that when the
Lynis is an open-source and much powerful auditing tool for Unix/Linux-like operating systems. It scans the system for security information, general system information, installed and available software information, configuration mistakes, security issues, user accounts
As we all know, the root user is king and wields unlimited privileges over the Linux system. However non-root users are limited to basic tasks. In addition, sudo users are only granted a certain
In an ever-connected world, network security is increasingly becoming one of the areas where organizations invest a great deal of time and resources. This is because a company’s network is the backbone of any
Since its release in the early nineties, Linux has won the admiration of the technology community thanks to its stability, versatility, customizability, and a large community of open-source developers who work round-the-clock to provide