4. The client sends an FTP PORT command that talks about using the active FTP mode, its IP address, and also the port number for establishing a data connection to which the server will connect. 5. The command is confirmed by the server. ...
to a remote server on the internet uses File Transfer Protocol (FTP) for the transaction. Both devices must be configured totransfer files via FTP. To transfer the file, the Transmission Control Protocol (TCP) software layer in local host identifies the port number of 21, which, by convention...
It is a packet-based protocol thus it works much faster than the simple file transfer protocol. Also with SFTP, the data transfer will take place along with the mainstream connection thus it need not provide a separate connection likewise in FTP for file transfer. SFTP Server As said earlier,...
However, some FTP servers may be configured to use a specific port number (such as port 20) for data transfers, rather than using the dynamic port allocation process. In this case, the FTP client would need to connect to port 20 in order to initiate a file transfer. ...
set port=<port_number>set e=<port_number> 指定目标端口 <port_number>值表示要在目标计算机上查询的端口。 set sport=<port_number>set sp=<port_number> 指定源端口 <port_number>值表示 PortQry 用于发送查询的端口。 PortQry 无法使用另一个进程已使用的端口。 如果指定端口号为零,则 PortQry 使用临时...
ftp server port 命令功能 ftp server port命令用来设置FTP服务器的端口号。 undo ftp server port命令用来恢复FTP服务器的端口号为缺省值。 缺省情况下,FTP服务器的端口号是21。 命令格式 ftp[ipv6]server portport-number undoftp[ipv6]server port
for FTP connection requests. Port 21 is the control port, which the Jetdirect will listen on for the initial connection. After the connection is established, in active mode FTP, a data connection will be made from port 20. Up to three simultaneous FTP sessions can be active at the same ...
If using a “passive” FTP connection setting, the client computer also connects to the server on FTP port 21. However, the server responds with a random port number, in a free range of ports, to use for the data port for file transfers. ...
Application protocolProtocolPorts FTP control TCP 21 FTP default data TCP 20 Randomly allocated high TCP ports TCP random port number between 49152 - 65535Group PolicyTo successfully apply Group Policy, a client computer must be able to contact a domain controller over the Kerberos, LDAP, ...
set sp=<port_number>指定來源埠 <>port_number值代表 PortQry 用來傳送查詢的埠。 PortQry 無法使用另一個進程已經使用的埠。 如果您指定零的埠號碼,PortQry 會使用暫時埠。 set protocol=<protocol> set p=<protocol>指定要使用的通訊協定通訊 <協定> 值代表要查詢的埠類型(tcp、udp或both)。