Translations:FTP server in the Cloud/4/en
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Setting up FTP[edit]
If you do not have freedom to choose an alternative to FTP, see the guide which best matches your operating system:
The ports that FTP uses must be open on your VM; see this page for information about opening ports. FTP uses port 21 to initiate file transfer requests, but the actual transfer can take place on a randomly chosen port above port 1025, though the details of this can vary depending in which mode FTP operates. For example, port 20 can also be involved. This means that to allow FTP access on your VM, you must open port 21, possibly port 20, and probably ports 1025 and above. Every open port represents a security risk, which is why other protocols are preferred to FTP. See this article for more details on ports used by FTP.