How to find out the access group for working with system components on linux?

Question

linux

Good afternoon! For example, to work with com ports, you can do ll /dev/ttyACM0 and the dialout group will be specified. If the user is in this group, then he does not need to execute the script with admin rights. I have a problem with raw sockets in node.js. I don't want to do the whole process with sudo for obvious reasons. But when using such libs as net-ping , there is a problem with access. How to find the access group correctly? Or perhaps do something differently?

Answer 1

If your port is less than 1024, then nothing, only root can occupy these ports, the rest work without root