SYN scanning requires a fully established TCP connection and is recorded in system logs.

Comprehensive and Detailed Explanation:

SYN scanning is a stealthy TCP scanning technique used by attackers to detect open ports.

How SYN scanning works:

The attacker sends aSYN packetto a target port.

If the port isopen, the target responds with aSYN-ACK.

Instead of completing the handshake with anACK, the attacker sends anRST (reset) packet, leaving the connection half-open.

Why is this statement false?

SYN scanning does NOT establish a full connection (three-way handshake).

It may not always be recorded in system logs, depending on firewall settings.

HCIP-Security References:

Huawei HCIP-Security Guide → TCP SYN Scanning & Intrusion Detection