![]() ![]() Designed to be a reliable "back-end" tool, Netcat can be used directly with other programs and scripts to send files from a client to a server and back. Netcat is a featured networking utility which reads and writes data across network connections, using the TCP/IP protocol. To learn how to send data to Ubidots using these protocols, see Send Data to Ubidots over TCP or UDP. This article will show you how to simulate a client using a useful tool called Netcat and realize the immediate connection using your own computer's terminal. In some cases like cellular transmission, the good old TCP/UDP packet transmission will work just fine. Choosing the right one will depend on your project's security, bandwidth and reliability needs, or maybe just your device computing limitations. For example, OpenBSD's nc supports TLS, and GNU netcat natively supports a tunneling mode supporting UDP and TCP (optionally allowing one to be tunneled over the other) in a single command, where other versions may require piping data from one netcat instance to another.Įxamples Opening a raw connection to port 25 nc are a number of protocols powering the Internet of Things. Rewrites like GNU's and OpenBSD's support additional features. Optional ability to let another program service establish connections.Hex dump of transmitted and received data.Slow-send mode, one line every N seconds.Can read command line arguments from standard input.Built-in loose source-routing capability. ![]()
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January 2023
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