Editing File Transfer Protocol (section)

==Derivatives==

===FTPS===
{{Main article|FTPS}}
Explicit FTPS is an extension to the FTP standard that allows clients to request FTP sessions to be encrypted. This is done by sending the "AUTH TLS" command. The server has the option of allowing or denying connections that do not request TLS. This protocol extension is defined in {{IETF RFC|4217}}. Implicit FTPS is an outdated standard for FTP that required the use of a SSL or TLS connection. It was specified to use different ports than plain FTP.

===SSH File Transfer Protocol===
{{Main article|SSH File Transfer Protocol}}
The SSH file transfer protocol (chronologically the second of the two protocols abbreviated SFTP) transfers files and has a similar command set for users, but uses the [[Secure Shell]] protocol (SSH) to transfer files. Unlike FTP, it encrypts both commands and data, preventing passwords and sensitive information from being transmitted openly over the network. It cannot interoperate with FTP software, though some FTP client software offers support for the SSH file transfer protocol as well.

===Trivial File Transfer Protocol ===
{{Main article|Trivial File Transfer Protocol}}
Trivial File Transfer Protocol (TFTP) is a simple, lock-step FTP that allows a client to get a file from or put a file onto a remote host. One of its primary uses is in the early stages of [[Network booting|booting from a local area network]], because TFTP is very simple to implement. TFTP lacks security and most of the advanced features offered by more robust file transfer protocols such as File Transfer Protocol. TFTP was first standardized in 1981 and the current specification for the protocol can be found in {{IETF RFC|1350}}.

===Simple File Transfer Protocol===
<!--Simple File Transfer Protocol redirects here-->
Simple File Transfer Protocol (the first protocol abbreviated SFTP), as defined by {{IETF RFC|913}}, was proposed as an (unsecured) file transfer protocol with a level of complexity intermediate between TFTP and FTP. It was never widely accepted on the [[Internet]], and is now assigned Historic status by the [[Internet Engineering Task Force|IETF]]. It runs through port 115, and often receives the initialism of ''SFTP''. It has a command set of 11 commands and support three types of data transmission: [[ASCII]], [[Binary file|binary]] and continuous. For systems with a [[word size]] that is a multiple of 8 bits, the implementation of binary and continuous is the same. The protocol also supports login with user ID and password, hierarchical folders and file management (including ''rename'', ''delete'', ''upload'', ''download'', ''download with overwrite'', and ''download with append'').