Netcat, and how to use it

[MyWorld]

netcat with its simple and yet incredibly powerful command line constructs has helped me innumerable times to validate TCP and UDP end to end connectivity.

http://aplawrence.com/Unixart/nc.html

Enjoy!

 

[Bule]

Interesting example where nc plays important role - bashreduce: A Bare-Bones MapReduce

http://www.linux-mag.com/cache/7407/1.html