你即將離開本站

並前往https://www.grc.com/port_21.htm

Port Authority, for Internet Port 21 - GRC

File Transfer Protocol (FTP) is one of the oldest Internet protocols. FTP servers open their machine's port 21 and listen for incoming client connections.

確定！ 回上一頁

查詢 「FTP port 21」的人也找了：

  1. FTP port 22
    2.
  2. FTP port 20 21
    3.
  3. SFTP port
    4.
  4. ftp改port
    5.
  5. ftp port設定
    6.
  6. ftp port預設
    7.
  7. FTPS port
    8.
  8. FTP port number
    9.