nc is the wrong tool for this job (to a greater or lesser degree based on which version you have; the more appropriate ones have the option to fork a subprocess for each new incoming connection). Use a proper built-to-purpose superserver -- xinetd was the up-and-coming standard 25 years ago; today I'd suggest tcpsvd.
The old nc version doesn't allow using different usernames for the bastion and target server. Also, I recently learned that ssh 7.3 and newer introduced a ProxyJump parameter which is a more user-friendly option to the ones you mentioned.
I am trying to prevent unnecessary downloading of large datasets by reading the publicly available files directly from their online location. Surprisingly I cannot find an answer to my question on
I am using nc command in my Linux box like below to check if a port is listening; This displays success message: nc -z 192.168.0.2 9000 This displays 0: echo $? I have combined it in a shell scr...
Extract the files (e.g. C:\NetCat) Open two cmd prompts and navigated to cd \NetCat. Execute nc.exe -l -p 9999 in one cmd window and nc.exe localhost 9999 in another. Note that I'm on a 32b windows7, for 64bit use nc64.exe. Test by typing Hello in one command window and check if it is displayed in the other.
I'm trying to convert a netCDF file to either a CSV or text file using Python. I have read this post but I am still missing a step (I'm new to Python). It's a dataset including latitude, longitude,...
When I build my Debian image from docker-compose, with the command $ docker-compose -f docker-compose-dev.yml build web, like so: docker-compose-fev.yml services: web: build: context...
So, I know the nc has different versions like openbsd-netcat and GNU-netcat, you can change the nc in debian to the openbsd version, but I choose to change the software like corkscrew, because the names of the two versions of nc in system are same, and many people don’t understand it well. My approach is as follows. sudo apt install corkscrew ...
"Inverse host lookup failed" simply means that nc wanted to print which host name 10.0.0.10 corresponds to, but couldn't. UNKNOWN is simply what it then prints as the host name. This is distinct from "I looked it up, but it doesn't seem to correspond to anything" which is what happens outside the container. To be perfectly explicit, connecting to the host succeeded, but looking up its name ...
