Ports and Services
Nmap Scans
| Scan Type | Command |
|---|---|
| TCP SYN Scan | nmap –sS -p<port range> <ip address or range> |
| TCP Stealth Scan | nmap –sF -p<port range> <ip address or range> |
| TCP Null Scan (ohne TCP Flags) | nmap –sN -p<port range> <ip address or range> |
| TCP Xmas Scan (alle TCP Flags gesetzt) | nmap –sX -p<port range> <ip address or range> |
| UDP Scan | nmap –PA -p<port range> <ip address or range> |
| SCTP INIT Scan | nmae -sY -p<port range> <ip address or range> |
COUNTERMEASURES
Use of Firewalls and IDS / IPS Systems to detect and block port scans.