Fyodor
Hi! My given name is Gordon Lyon, though I often go by Fyodor on the Internet. I run the Internet security resource sites Insecure.Org, Nmap.Org, SecLists.Org, and SecTools.Org. I also wrote and maintain the Nmap Security Scanner. These projects don't leave me much time to update vanity pages like this one, so you may find a more formal and up-to-date bio on my Wikipedia entry. For people who just came here looking for my email address, it is fyodor@nmap.org.
- fyodor@nmap.org
Palo Alto, CA
United States
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Network Security Scanner
Nmap ("Network Mapper") is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), a utility for comparing scan results (Ndiff), and a packet generation and response analysis tool