small portable ftp client for windows 10

See the RFC for a complete guide to reply codes. Generally codes in the 200s are success and 500s are failures. The servers replies consist of a 3 digit code (in ASCII) followed by some explanatory text. All commands are terminated by a carriage return-linefeed sequence (CRLF) (ASCII 10,13 or Ctrl-J, Ctrl-M). The FTP commands from the client to the server consist of short sets of ASCII characters, followed by optional command parameters.įor example, the FTP command to display the current working directory is PWD (Print Working Directory). This connection is referred to as the FTP command connection. This connection is then used to convey commands from the client to the server, and the server replies back to the client. This TCP connection persists for as long as the client maintains a session with the server, (usually determined by a human user). The server does a passive open (a socket is listen) when it begins operation thereafter clients can connect with the server via active opens. When an FTP client contacts a server, a TCP connection is established between the two machines.

Small portable ftp client for windows 10