Network Analyzer

A minimal, modern web UI with essential tools for network engineers.

Tools included:

• Ping
• Traceroute
• DNS Lookup
• WHOIS
• Port Scanner
• HTTP tester
• SSL/TLS info
• Subnet calculator
• Interfaces
• ARP table
• Speedtest (speedtest.net via speedtest-cli)

Setup

1. Create and activate a virtual environment (recommended)

   python3 -m venv .venv
   . .venv/bin/activate

2. Install dependencies

   pip install -r requirements.txt

3. Run

   python run.py
   # or specify a port
   PORT=5050 python run.py

Open http://localhost:5000 in your browser. If 5000 is taken, the app now auto-selects a nearby free port and prints it, e.g. http://localhost:5001.

Notes

• Some tools rely on system commands (ping, traceroute/tracert, ip). Ensure they are installed and allowed.
• Port scanner is basic TCP connect scan. Use responsibly on networks you own or have permission to test.
• WHOIS depends on python-whois; TLD coverage varies.
• Speedtest uses the public speedtest.net infrastructure; results depend on server selection and may consume bandwidth.

Troubleshooting

• Port already in use: find and kill the process using it:

  lsof -i :5000
  kill -9 <PID>

• Or simply use a different port: PORT=5050 python run.py.
• For the moments the application is not hosted properly since it hosts itself through run.py. Until I host the application somewhere else, I will be working this way. That means that if you want to test the application you will have to download the whole repo.