Disclaimer: This article is intended solely for educational and authorized penetration testing purposes. Unauthorized access to systems is illegal and punishable by law. Always have explicit permission before attempting any form of testing on a system.

Linux servers are a backbone of today’s internet infrastructure, supporting critical operations for countless organizations. While Linux is known for its robust security features, misconfigurations and weak credentials can still leave servers vulnerable to unauthorized access. Hydra, a powerful network login cracker, is commonly used by penetration testers to assess the strength of SSH login credentials on Linux servers.