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Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

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File Transfer Protocol (FTP)

Definitions:

  FTP is an Internet standard for transferring files over the Internet. FTP programs and utilities are used to upload and download Web pages, graphics, and other files between local media and a remote server which allows FTP access.
Sources:
NIST SP 800-82 Rev. 2 from API 1164