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tftp

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Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

Transfers files to and from a remote computer, typically a computer running UNIX, that is running the Trivial File Transfer Protocol (tftp) service or daemon. tftp is typically used by embedded devices or systems that retrieve firmware, configuration information, or a system image during the boot process from a tftp server.

[IMPORTANT] The tftp protocol doesn't support any authentication or encryption mechanism, and as such can introduce a security risk when present. Installing the tftp client is not recommended for systems connected to the Internet. A tftp server service is no longer provided by Microsoft for security reasons.

Syntax

tftp [-i] [<host>] [{get | put}] <source> [<destination>]

Parameters

Parameter Description
-i Specifies binary image transfer mode (also called octet mode). In binary image mode, the file is transferred in one-byte units. Use this mode when transferring binary files. If you don't use the -i option, the file is transferred in ASCII mode. This is the default transfer mode. This mode converts the end-of-line (EOL) characters to an appropriate format for the specified computer. Use this mode when transferring text files. If a file transfer is successful, the data transfer rate is displayed.
<host> Specifies the local or remote computer.
get Transfers the file destination on the remote computer to the file source on the local computer.
put Transfers the file source on the local computer to the file destination on the remote computer. Because the tftp protocol doesn't support user authentication, the user must be logged onto the remote computer, and the files must be writable on the remote computer.
<source> Specifies the file to transfer.
<destination> Specifies where to transfer the file.

Examples

To copy the file boot.img from the remote computer Host1, type:

tftp  -i Host1 get boot.img