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38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
Netcat is a simple Unix utility which reads and writes data across
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network connections using TCP or UDP protocol. It is designed to be a
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reliable "back-end" tool that can be used directly or easily driven by
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other programs and scripts. At the same time it is a feature-rich
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network debugging and exploration tool, since it can create almost any
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kind of connection you would need and has several interesting built-in
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capabilities.
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Some of netcat's major features are:
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Outbound or inbound connections, TCP or UDP, to or from any ports
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Full DNS forward/reverse checking, with appropriate warnings
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Ability to use any local source port
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Ability to use any locally-configured network source address
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Built-in port-scanning capabilities, with randomizer
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Built-in loose source-routing capability
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Can read command line arguments from standard input
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Slow-send mode, one line every N seconds
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Hex dump of transmitted and received data
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Optional ability to let another program service established connections
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Optional telnet-options responder
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A very short list of potential uses:
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Script backends
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Scanning ports and inventorying services, automated probes
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Backup handlers
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File transfers
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Server testing, simulation, debugging, and hijacking
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Firewall testing
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Proxy gatewaying
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Network performance testing
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Address spoofing tests
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Protecting X servers
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1001 other uses you'll likely come up with
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_H* 960320
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