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Utilities

OS: Ubuntu 20.04 LTS

Wireshark​

  1. Install wireshark

    sudo apt update
    sudo apt install wireshark

  2. Open wireshark

    sudo wireshark

  3. Apply filters to ip address and port

    ip.addr == 192.168.0.28 && tcp.port == 23

    wireshark filter

CuteCom​

OS: Ubuntu 20.04 LTS

A Linux based serial monitor

sudo apt install cutecom

cutecom screenshot

Terminal based serial monitoring​

  1. Install terminal serial monitoring app

    sudo apt install screen

  2. Find the USB port name

    ls -l /dev/ttyUSB* /dev/ttyACM*

    screenshot

  3. Add user privilage

    sudo usermod -a -G dialout $USER

  4. Run the tool to monitor the serial port in terminal

    screen [USB port name found in \#2] [baudrate]
    screen /dev/ttyUSB0 115200