LazyNet - A Modern Terminal-Based Network Monitor

LazyNet is an interactive, terminal-based utility for monitoring network connections and processes.
It provides a real-time, filterable, and sortable view of your system's network activity, with integrated actions to manage processes and diagnose connections.

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Table of Contents

• LazyNet - A Modern Terminal-Based Network Monitor
  • Table of Contents
  • Main Interface
  • Features
    • Process Management
    • Network Diagnostics
    • Export to CSV
    • In-App Help Panel
  • Help Panel & Ping Utility
  • Installation
• Clone the repository
• Tidy dependencies
• Build the binary (using Makefile)

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Main Interface

The main view provides a two-pane layout:

• Left Pane: Live-updating list of connections
• Right Pane: Detailed information for the selected connection

This allows you to monitor and analyze network activity efficiently.

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Features

• Live Monitoring: Automatically refreshes the connection list every few seconds.
• Interactive TUI: Fully keyboard-driven interface with optional mouse support.
• Two-Pane Layout: View all connections and details simultaneously.
• Real-time Filtering: Press / to instantly filter connections by process name, PID, status, or address.
• Column Sorting:
  • Press s to cycle through sortable columns
  • Press S to toggle ascending/descending order
• Color-Coded Status: Quickly identify connection states (ESTABLISHED, LISTEN, CLOSE_WAIT) with colors.

Process Management

• k – Gracefully kill the process associated with the selected connection
• K – Forcefully kill the process (SIGKILL)

Network Diagnostics

• p – Ping the remote address of a connection and view live output in a modal

Export to CSV

• e – Export the currently visible connections to a lazynet_export.csv file for analysis

In-App Help Panel

• h – Toggle a detailed, colorful panel explaining all keybindings

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Help Panel & Ping Utility

The in-app help (h) provides a clear overview of all commands.
Actions like ping (p) run in a convenient modal overlay, making diagnostics easier.

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Installation

Option 1: Build from Source

Ensure you have Go (version 1.21 or newer) installed on your system.

# Clone the repository
git clone https://github.com/sureshkrishnan-v/lazynet.git
cd lazynet

# Tidy dependencies
go mod tidy

# Build the binary (using Makefile)
make build

Option 2: Using Nix

If you have Nix installed, you can run LazyNet directly without cloning:

# Run directly from GitHub
nix run 'git+https://github.com/sureshkrishnan-v/lazynet'

# Or with SSH
nix run 'git+ssh://[email protected]/sureshkrishnan-v/lazynet'