Port Scanning
Port Scanning is one of the most popular techniques used by hackers to discover services that can be compromised.
- A potential target computer runs many services that listen at well-known ports.
- By scanning which ports are available on the victim, the hacker finds potential vulnerabilities that can be exploited.
- Scan techniques can be differentiated broadly into Vanilla, Strobe, Stealth, FTP Bounce, Fragmented Packets, Sweep and UDP Scans.
Port Scanning Techniques
Port Scanning Techniques can be broadly classified into:
- Open scan
- Half- open scan
- Stealth scan
- Sweeps
- Misc
Commonly used tools for port scanning1. Tool: SuperScan 3.0 2. Tool: NMap (Network Mapper)3. Tool: NetScan Tools Pro 20034. Tool: ipEye, IPSecScan