nc demo
assume: A(1.1.1.1) to B(2.2.2.2)
nc demo1: nc copy file:
copy file(test.log) from A(1.1.1.1) to B(2.2.2.2)
step1: start nc to monitoring data on B nc -lp 1234 > test.log
step2: use nc make connection with B on A nc -w 1 2.2.2.2 1234 < test.log
nc demo2: chat with nc
1) A communicate with B, input command on B: nc -lp 1234
2) input command on A: nc 2.2.2.2 1234
3) chat by nc, enjoy
flow of “<” and “>”
command < file # file to command
command < file1 > file2 # file1 to command, the result of command to file2
echo "This is my data" > /dev/udp/127.0.0.1/3000
ncat
dpkg -l | egrep netcat
nc.traditional -h
/usr/bin/ncat
