#system enumeration

How Xmas Scans Help Fingerprint A Target Machine

The “Transmission Control Protocol”, or TCP, exchanges huge quantities of information daily, however, some OS (Operating System) vendors have not fully implemented the protocol as it is defined by the Internet Engineering Task Force (IETF) in its definitive, the industry standard, the RFC 793 specification. Specifically, a TCP port is supposed to send an RST (reset) packet when closed or not in…