Zenmap, the Nmap GUI Zenmap is the Nmap security scanner graphical user interface and provides for hundreds of options. Though they are frequently used to check for well-known network infrastructure vulnerabilities, all sorts of tasks can be automated. Nmap employs transport layer protocols including (Transmission Control Protocol), (User Datagram Protocol), and SCTP (Stream Control Transmission Protocol), as well as supporting protocols like ICMP (Internet Control Message Protocol), used to send error messages. Different protocols use different types of packet structures. Nmap port scan The packets that Nmap sends out return with IP addresses and a wealth of other data, allowing you to identify all sorts of network attributes, giving you a profile or map of the network and allowing you to create a hardware and software inventory. Since its release in 1997, Nmap has evolved but the basis of its functionality is still port scanning. Other terms used for port scanning include port discovery or enumeration. It listens for responses and determines whether ports are open, closed or filtered in some way by, for example, a. Though Nmap has evolved over the years and is extremely flexible, at heart it's a port-scan tool, gathering information by sending raw packets to system ports.
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