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ftps 2019-02-26		ftps 2024-09-18 (current)
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	====== FTPS ======		====== FTPS ======
-	FTPS (also known as FTP Secure and %%FTP%%-%%SSL%%) is an extension to the commonly used File Transfer Protocol (%%FTP%%) that adds support for the [[tls\|Transport Layer Security]] (TLS) and the Secure Sockets Layer (SSL) cryptographic protocols.·((&wikipedia_ref(FTPS\|FTPS)))	+	FTPS (also known as FTP Secure and %%FTP%%-%%SSL%%) is an extension to the commonly used File Transfer Protocol (%%FTP%%) that adds support for the [[tls\|Transport Layer Security]] (TLS) cryptographic protocol (previously known as the Secure Sockets Layer – SSL).((&wikipedia_ref(FTPS\|FTPS)))

	===== [[methods]] Methods of Invoking =====		===== [[methods]] Methods of Invoking =====
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	Negotiation is not allowed with implicit %%FTPS%% configurations. A client is immediately expected to challenge the %%FTPS%% server with a connection encrypted using TLS/SSL. If it does not, the server should drop the connection.		Negotiation is not allowed with implicit %%FTPS%% configurations. A client is immediately expected to challenge the %%FTPS%% server with a connection encrypted using TLS/SSL. If it does not, the server should drop the connection.

-	In order to maintain compatibility with existing non-%%TLS%%/%%SSL%% aware %%FTP%% clients, implicit %%FTPS%% was expected to listen on the IANA Well Known Port 990/TCP for the %%FTPS%% control channel and 989/%%TCP%% for the %%FTPS%% data channel. This allowed administrators to retain legacy compatible services on the original 21/%%TCP%% %%FTP%% control channel.dfgf	+	In order to maintain compatibility with existing non-%%TLS%%/%%SSL%% aware %%FTP%% clients, implicit %%FTPS%% was expected to listen on the IANA Well Known Port 990/TCP for the %%FTPS%% control channel and 989/%%TCP%% for the %%FTPS%% data channel. This allowed administrators to retain legacy compatible services on the original 21/%%TCP%% %%FTP%% control channel.

	In Implicit Mode, the entire %%FTPS%% session (both control and data channels) is unconditionally encrypted.		In Implicit Mode, the entire %%FTPS%% session (both control and data channels) is unconditionally encrypted.