While I tried my best to make this book comprehensive, accurate, and up-to-date, we all make mistakes. If you find any problems or just have suggestions for making this book better, please let me know by email at <fyodor@insecure.org>. The open source principle of many readers and contributors is just as viable for documentation as for software. As the next section attests, dozens of people have already generously contributed their time and skills to make this book a success.

If you have a question or comment about Nmap (rather than this book itself), it is best sent to the Nmap development list as described at the section called “Bugs”.