← All Kali Issues
Kali Linux

Cannot open port

N Network Medium

🔴 Error Message

Application cannot bind to port

📖 What This Means

Port already in use or permission denied.

🔧 Step-by-Step Fix

  1. Check: ss -tlnp | grep PORT
  2. Kill: sudo kill $(sudo lsof -t -i:PORT)
  3. Ports below 1024 need root

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