![]() ![]() In the end, the only key difference that most will need to worry about is that SFTP provides a secure way to transfer files from one host to another. This allowed data to be exchanged in a secure manner using FTP via two secure variants: FTPS Implicit SSL and FTPS Explicit SSL. SSL was then applied to FTP to create FTPS. ![]() ![]() SFTP is also an independent protocol providing host to host transfers where FTP is a more open protocol.Ī while back, in order to add a bit of security to FTP, Netscape created the SSL, or Secure Sockets Layer (currently TLS, or Transport Layer Security).FTP only sends data in plain text format while SFTP encrypts all of its data prior to being sent to the host.FTP establishes its control connection on TCP port 21 whereas SFTP transfers files under the connection established by the SSH protocol between client and server.In other words, it’s the standard protocol that governs communications among all the computers on the internet. TCP/IP stands for Transmission Control Protocol/ Internet Protocol. SFTP is a secure network protocol whereas FTP is not. The most notable and obvious difference is in the definition. This is true of other files, not just themes. This is to avoid WordPress from denying certain lines of code that your theme might require during a normal transfer. When attempting to add a theme you’ve saved to your computer or a server, it could be necessary to transfer that theme via either FTP or SFTP. WordPress is an excellent example of a site that allows for both FTP and SFTP connections. This removes the need for client authentication as the client user identity is made available to the protocol. When connecting to an SFTP server it assumes that the connection is running over a secure channel. ![]()
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