62 lines
2.6 KiB
Plaintext
62 lines
2.6 KiB
Plaintext
Netcat 1.10 is an updated release of Netcat, a simple Unix utility which reads
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and writes data across network connections using TCP or UDP protocol. It is
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designed to be a reliable "back-end" tool that can be used directly or easily
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driven by 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 kind of
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connection you would need and has several interesting built-in 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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Changes between the 1.00 release and this release:
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Better portability -- updated generic.h and Makefile [thanx folks!]
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Indication of local-end interface address on inbound connections
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That's *Dave* Borman's telnet, not Paul Borman...
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Better indication of DNS errors
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Total byte counts printed if -v -v is used
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A bunch of front-end driver companion programs and scripts
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Better handling of stdin arguments-plus-data
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Hex-dump feature
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Telnet responder
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Program exec works inbound or outbound now
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Netcat and the associated package is a product of Avian Research, and is freely
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available in full source form with no restrictions save an obligation to give
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credit where due. Get it via anonymous FTP at avian.org:/src/hacks/nc110.tgz
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which is a gzipped tar file and not to be confused with its version 1.00
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precursor, nc100.tgz. Other distribution formats can be accomodated upon
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request. Netcat is also mirrored at the following [faster] sites:
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zippy.telcom.arizona.edu:/pub/mirrors/avian.org/hacks/nc110.tgz
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ftp.sterling.com:/mirrors/avian.org/src/hacks/nc110.tgz
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coast.cs.purdue.edu:/pub/tools/unix/netcat/nc110.tgz
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ftp.rge.com:/pub/security/coast/mirrors/avian.org/netcat/nc110.tgz
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_H* 960320
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