In various scenarios it might be helpful or even required to have a statically compiled version of Nmap available. This applies to e.g. scenarios where only limited user privileges are available and installing anything to the system might not be desirable.
For such cases I’ve started to create recipes to build such binaries. Similar projects are already available on GitHub, but there are several reasons why I chose to create my own tools:
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our home automation research, especially with KNX, is still in progress. As part of this research we’ve implemented various tools to easy the process of identifying and enumerating KNX devices, in both IP driven networks and on the bus.
Lately we’ve written two Nmap NSE scripts to discover KNXnet/IP gateways. These allow everyone to discover such gateways in local and remote networks and print some useful information about them. One of them follows the specification to discover gateways by sending multicast packets, where all devices on the network must respond to. Due to the specification of KNXnet/IP this process is rather non-invasive because only a single UDP packet is needed to discover multiple gateways. The other script allows to identify gateways via unicast connections by a slightly different message type, which allows discovery over e.g. the Internet.
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