FTP

FTP

The File Transfer Protocol is a standard network protocol used for the transfer of computer files between a client and a server on a computer network. FTP is built on a client-server model architecture using separate control and data connections between the client and the server.

What is port 20 and 21 used for?

Port Authority, for Internet Port 20. Description: The FTP protocol uses a pair of connections between the FTP client and FTP server. The connection with the FTP server’s port 20 is the second connection created during an FTP session, the first one being to the server’s port 21.

What port uses FTP?

FTP/S commonly runs on port 990 and sometimes on port 21, the primary difference being that port 990 is an Implicit FTP/S, and port 21 is an Explicit FTP/S. If a client connects to an FTP/S server on port 990, the assumption is that the client intends to perform SSL.

What is port 995 used for?

Encrypted communication for POP3 is either requested after protocol initiation, using the STLS command if supported, or by POP3S, which connects to the server using Transport Layer Security (TLS) or Secure Sockets Layer (SSL) on well-known TCP port number 995.

What is my FTP address?

An FTP address is an address that is used to transfer files to the Internet. You’ll need an FTP address, username, and password to access the files on the Web server. It’s often similar to the full website address (URL or domain name) but starts with an FTP instead of an HTTP.

How secure is FTP?

FTPS and SFTP. FTPS is Secure FTP, much like HTTPS is secure HTTP, and runs over SSL (Secure Sockets Layer) and TLS (Transport Layer Security). The user credentials and data are no longer sent in the clear; instead, they are encrypted before they’re transmitted.