← All Kali Issues
Nmap

SYN scan permission

P Permission High

🔴 Error Message

TCP SYN scan requires root on Unix

📖 What This Means

SYN stealth scan needs raw sockets.

🔧 Step-by-Step Fix

  1. Use sudo: sudo nmap -sS target
  2. Without root use: nmap -sT target (TCP connect)
  3. Or set cap: sudo setcap cap_net_raw+ep /usr/bin/nmap