← All Kali Issues
Nmap

Output file permission denied

S System Low

🔴 Error Message

Cannot open output file for writing

📖 What This Means

Nmap cannot write results to the specified output file.

🔧 Step-by-Step Fix

  1. Check directory exists and is writable
  2. Use writable path: nmap -oN /tmp/scan.txt target
  3. Run with appropriate permissions

🔗 More Nmap Issues

Nmap
Host seems down
Nmap
Permission denied raw sockets
Nmap
Service detection hanging
Nmap
NSE script error
Nmap
Scan extremely slow
Nmap
UDP scan requires root
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