IT/Software/Command Line Applications/iperf3
General
Install
sudo apt install iperf3
Usage
Server
This is the computer that will listen for requests for speed checks.
Client
This is the computer that will try to dial into the server to test their communication speed
Checking speed
On the server you need to start listening
iperf3 -s
On the client you need to send the request
iperf3 -c ipAddressOfServer
NOTE: If the server is on a dynamic ip