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Nmap Public Source License


THIS IS JUST A DRAFT OF THE NPSL WHICH MAY OR MAY NOT BE APPLIED TO NMAP SOMEDAY - CURRENT VERSIONS OF NMAP ARE ACTUALLY DISTRIBUTED UNDER THIS LICENSE INSTEAD.

Nmap is distributed under the terms of the Nmap Public Source License. This license is based on the GNU GPLv2, but has some other important conditions, clarifications and exceptions. It also contains a warranty disclaimer and contributor agreement. We believe it is 100% compliant with the Open Source Definition, but we haven't gone through their certification process (which requires an attorney).

The license itself is rather terse, so we have created the Annotated HTML Nmap Public Source License. This version includes further reasoning behind and explanations of the license terms. These annotations are not a legal document or legal advice. If you need to know exactly what the license requires, you need to read and understand the license itself; if you need legal advice, talk to a lawyer.

Once we finish hashing out the license terms, we will link from here to the latest official, non-annotated text version of the license. Note that some releases of Nmap may fall under a previous version of this license, or a different license entirely. The exact terms for a given version of Nmap can be found in the included COPYING file.

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