Network Monitoring Feature

Introduction

Mudfish Network Monitor (aka MudNetMon) is a terminal-based tool that shows the real-time network usage of each program running on your computer. You can check which applications are using the network and how much data they are sending and receiving.

The Mudfish Network Monitor program works correctly even when connected to a VPN (such as Mudfish). It displays the actual program that generated the traffic, not the VPN.

Key Features

• Process-level monitoring: Check the network traffic usage of each program
• Connection details: Check the servers (IP address, port) each program is connecting to
• VPN awareness: Displays the correct program even while using a VPN
• Export: Save as a CSV file for later review

Platform Support

Platform	Status
Windows	Supported
Linux	Supported
macOS	Planned

How to Run

Run Automatically

If you are using the Mudfish Cloud VPN program, you can run the program from the "Advanced -> Network Monitor" menu after logging in.

Run Manually

MudNetMon must be run with Administrator (Windows) or root (Linux/macOS) privileges for network traffic monitoring.

• Windows: The mudnetmon.exe executable is located in the Mudfish installation directory. Generally, it is under the C:\Program Files (x86)\Mudfish Cloud VPN\ folder. Right-click the program and select "Run as administrator".

  On Windows, it automatically opens in Windows Terminal for better display if Windows Terminal is installed.

• Linux / macOS: Run with sudo (e.g., sudo /opt/mudfish/<version>/bin/mudnetmon)

How to Use

Keyboard Shortcuts

Key	Action
q	Quit
s or Space	Start/Pause collection
e	Export to CSV file
Enter or →	View connection details of selected program
Esc or ← or Backspace	Return to program list
↑ / ↓ / PgUp / PgDn	Move up/down in the list
< / > (or , / .)	Change sort criteria

Screens

• Program List: Displays all programs with network activity. You can sort by traffic volume, program name, or connection count.
• Connection List: Select a program and press Enter to view each connection (server address, port, sent/received data volume).

Export

Pressing the e key saves the current data as a CSV file in the current folder. The file name format is mudnetmon_export_1234567890.csv.