I get this:
How to get data from it or how to stop ?
login as: root
root@192.168.1.9's password:
Linux raspberrypi 5.10.17-v7l+ #1403 SMP Mon Feb 22 11:33:35 GMT 2021 armv7l
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Mar 13 12:21:33 2021 from 192.168.1.33
root@raspberrypi:~# iperf3 -s -f K
-bash: iperf3: command not found
root@raspberrypi:~# iperf3 -s -f K
-bash: iperf3: command not found
root@raspberrypi:~# iperf -s -f K
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 128 KByte (default)
------------------------------------------------------------