Network Mapper: Network exploration tool and security / port scanner
Probing
-Pn Skip discovery phase (treat all hosts as online)
Scanning
-sS SYN scan
-sTfull TCP scan
-sV version scan
Scripting
--script-help [default] print script’s info
--script run script
Arbitrary TCP and UDP connections and listens
Scan for listening daemon, without sending data
BSD
> nc -z example.com 20-30GNU
> nc -zv example.com 20-30
Client/Server
BSD
> nc -l 1234 # server> nc example.com 1234 # client> nc -l 1234 > out.txt # server> nc example.com 1234 < in.txt # clientGNU
> nc -lp 1234
Nearly every character in American Kingpin seems to have wandered in from one Coen brothers movie or another — Ulbricht’s girlfriend is a born-again Christian who runs an erotic photography business; one of his chief confidantes is an undercover DEA agent who begins stealing from him; and the man who discovers his true identity is a nerdy IRS agent who reads every sentence three times.
[…]
American Kingpin is written as a drama, but so many events in Ulbricht’s life read as farce. His over-the-top conversion to libertarianism; a disastrous early experience as a psychedelic mushroom farmer; his paying hundreds of thousands of dollars for revenge murders that never happened; and his ultimate discovery at the hands of his email address
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