NC data submission method

Today, I learned that using NC can submit the modified data packet to the web server.

1. Basic use
Want to connect to a location: NC [-options] hostname port [s] [ports]...
Bind the port to wait for the connection: NC-l-P port [-options] [hostname] [port]
Parameters:
-E progProgramRedirection. Once connected, [dangerous!] will be executed.
-G gateway source-routing hop point [s], up to 8
-G num source-routing pointer: 4, 8, 12 ,...
-H help information
-I secs latency Interval
-L listening mode for inbound connection
-N: the IP address of the specified number. The hostname cannot be used.
-O file records hexadecimal Transmission
-P port: local port number
-R: Specify any local or remote ports
-S ADDR local source address
-U udp Mode
-V detailed output -- use two-V to get more detailed content
-W secs timeout time
-Z: Turn off the input and output -- used for scanning
You can specify one port number or a range in the lo-Hi format.
Example: Scan Port
TCP scan

Submit data
First, use wsockexpertto capture the package and save it as 123.txt. Then, add-VV to NC-VV www.xxxx.com 80 <123.txt, and you will find that the speed is very slow. but there is a trace display effect, if you do not need to remove it, the speed will be much faster.
If the returned information causes a pause, you can add-W, seconds to time out.

I tried to submit a failed job once. Later I found that the packet was caught incorrectly. sometimes when there is too much data, wsockexpert divides the data into several pages, but I only save one page. therefore, the data is incomplete, and the submission is not reflected. pay attention to it.