. . . . . "ftp:"^^ . "File Transfer Protocol"@en . "ftp"^^ . "stable" . "File Transfer Protocol"@en . . . . . . . . . . . "RFC1738" . . . . . . . "FTP"^^ . "FTP"@en . "ftp"^^ . "stable" . "2022-02-07"^^ . "FTP"@en . . . . . . . . . . "Randall Stewart" . "Randall R. Stewart" . . "RFC9260" . . . "21 (SCTP)"^^ . "21"^^ . . . . . . "SCTP"^^ . "Stream Control Transmission Protocol"@en . "sctp"^^ . "stable" . "2000-04"^^ . "Stream Control Transmission Protocol"@en . . . . . . . . . . "21 (UDP)"^^ . "21"^^ . . . . . . "UDP"^^ . "User Datagram"@en . "udp"^^ . "stable" . "User Datagram"@en . . . . . . . . "RFC768" . . "Jon Postel" . . "21 (TCP)"^^ . "21"^^ . . . . . . "TCP"^^ . "Transmission Control"@en . "tcp"^^ . "stable" . "Transmission Control"@en . . . . . . . "RFC9293" . . . . "ftp" . .