Definition - What does Port Scanner mean?
A port scanner refers to a software application program that scans a server for open ports. It enables auditors and network administrators to examine network security while attackers and hackers use it to identify open ports for exploiting and/or running malicious services on a host computer or server.
Port scanners are primarily used by network security administrators to scan and monitor network ports on a system, server or IT environment.
Techopedia explains Port Scanner
- Vanilla: Probes and scans all ports on a system/server.
- Strobe: Only selected ports are scanned or probed.
- UDP: Scans for open UDP ports.
- Sweep: A similar port number is probed on more than one computer.
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