An SSH Server is a program that allows secure remote access to a computer or network device over the internet. It uses the Secure Shell (SSH) protocol to encrypt data, ensuring that sensitive information, such as passwords and commands, is protected from eavesdropping. This makes it a popular choice for system administrators and developers who need to manage servers remotely. When a user connects to an SSH Server, they typically authenticate using a username and password or an SSH key. Once connected, they can execute commands, transfer files, and perform various administrative tasks securely. This functionality is essential for maintaining and managing servers in a safe manner.