{"id":4639,"date":"2026-05-13T06:10:33","date_gmt":"2026-05-13T06:10:33","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/ftp-vs-sftp-differences-security-encryption-file-transfer\/"},"modified":"2026-05-26T01:55:11","modified_gmt":"2026-05-26T01:55:11","slug":"ftp-vs-sftp-differences-security-encryption-file-transfer","status":"publish","type":"post","link":"https:\/\/lp.szlogic.cn\/ru\/knowledge-center\/ftp-vs-sftp-differences-security-encryption-file-transfer","title":{"rendered":"FTP vs SFTP: Choosing the Right Protocol for Secure File Transfers"},"content":{"rendered":"
\"FTP<\/figure>\n\n\n\n

In today’s interconnected digital world, the ability to move files efficiently and securely is the lifeblood of businesses and IT operations. For decades, the File Transfer Protocol (FTP)<\/strong><\/a> has been the go-to solution. But as cyber threats evolve, a more secure alternative has risen to prominence: the SSH File Transfer Protocol (SFTP)<\/strong><\/a>.<\/p>\n\n\n\n

If you’re still using FTP for critical transfers, you might be exposing your data to significant risks. This comprehensive guide will break down the key differences between FTP and SFTP<\/strong>, helping you make an informed decision. We’ll also explore how your underlying network hardware, including high-performance LINK-PP <\/strong>optical transceivers<\/strong><\/a>, plays a crucial role in the performance and reliability of your file transfer operations.<\/p>\n\n\n\n

🌐 What is FTP (File Transfer Protocol)?<\/strong><\/h2>\n\n\n\n

FTP<\/strong><\/a>, or File Transfer Protocol, is one of the oldest protocols still in use on the internet. Developed in the early 1970s, its primary purpose is to transfer files between a client and a server on a computer network.<\/p>\n\n\n\n

\"FTP\"<\/figure>\n\n\n\n

How FTP Works<\/h3>\n\n\n\n

FTP operates on a client-server model and uses separate control and data connections. The client initiates a connection to the server on port 21 (the command channel) to authenticate and send commands. When a file transfer is requested, a separate data channel is established (often on port 20) to move the actual files.<\/p>\n\n\n\n

Key Characteristics of FTP:<\/strong><\/p>\n\n\n\n