How does FTP Server Works?

Answer: An FTP server works by listening on a network for connection requests from FTP clients, allowing users to upload, download, and manage files on the server.

An FTP (File Transfer Protocol) server operates as a central file storage location that can be accessed over a network using FTP, a standard network protocol:

• Listening for Connections: The server listens on a specific port (usually port 21 for FTP) for incoming connection requests from FTP clients.
• Authentication: When a client attempts to connect, the server typically requires authentication via a username and password, though anonymous connections may be permitted.
• Establishing Sessions: Upon successful authentication, a session is established between the client and server. The server sets up a command channel for commands and responses and a data channel for transferring files.
• File Operations: Clients can perform operations such as uploading, downloading, renaming, and deleting files on the server.
• Connection Closure: After file operations are completed, the connection is terminated either by the client’s request or after a timeout period.

Conclusion:

An FTP server facilitates file transfers and management over a network by establishing connections with clients, authenticating users, and allowing for various file operations. It serves as a reliable method for storing and sharing files across different systems and users.