I want to provide a 'SSH Tunnel' for one of my customers, and I need to know the total network traffic by its PORT or USER.
for example: I will give him/her an access to my server by an exclusive username like TEST and port 7070, and after a week I need to know the total traffic of PORT 7070 | USER Test in MB or GB.
so Live|Real Monitoring is not an option in my case.
P.S. under Ubuntu 22.04 or any other distros
