Subject: The port information 11 views

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The server to which sends a welcome message and asks the client to enter information such as username and password. If correct access information is entered the server responds to the client by opening an FTP command line.While FTP is running it uses more than one port and continues its operation with dynamic ports. If the client wants to start the file transfer it opens a port larger than on its side. It also notifies the server side of the port it has opened. The server establishes a connection with the port declared by the client and the file transfer is started. When the file transfer process is completed a confirmation message is sent by the client.

What is Passive FTP The fact that Active FTP does not work Bolivia Mobile Number List properly in todays internet technologies has led software developers to produce the technology called Passive FTP. Because firewall software firewall devices and even antivirus programs installed on the computer that acts as a server It prevents the stable operation of active FTP technology. Therefore Passive FTP technology where the server is active and accepts the transfer operation it allows the client is passive and transfers data according to the servers instructions is more common today. If passive FTP is used during file transfer the following steps take place Active FTP in the client role connects to the opposite server through port that is the command port. Computer acting as FTP server After the welcome message it sends the username and password challenge to the client.



The client enters this information. If the information provided by the client is correct  on which the transfer will be made is transmitted to the client by the server. The client initiates the file transfer by connecting to the port opened by the server. FTP Commands FTP programs use some commands when communicating between them. Every instruction you give via an FTP program is converted into a command and transmitted to the server computer. The server computer especially in passive FTP transactions sends some instructions to the client with the help of commands. We list these commands under subheadings below ftp.siteadi.tld or ftp.IPAdres.