In this article, we will show you how to securely transfer files between your local machine and a remote machine, using SFTP (Secure File Transfer Protocol), also known as the SSH File Transfer Protocol.
The Passive property controls whether data connections for uploads/downloads are established in Active or Passive mode. To use Active mode, set the Passive property = 0. This is the default.
过去以来,要测试某个IP 的某个Port 通不通,我最常用的做法是开Cmd (命令提示字元),下指令telnet server_ip port_no,如果失败会得到"无法开启到主机的连线/ Could not open connection to the host" 的错误讯息,如果成功则会画面一黑等你输入指令: