Nmap & Zenmap v4.75 released
Nmap ("Network Mapper") is a free open source utility for network exploration or security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts. 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. Nmap runs on most types of computers and both console and graphical versions are available. Nmap is free and open source (license).
- [Zenmap] Added a new Scan Topology system. The idea is that if we are going to call Nmap the "Network Mapper", it should at least be able to draw you a map of the network! And that is what this new system does. It was achieved by integrating the RadialNet Nmap visualization tool (http://www.dca.ufrn.br/ joaomedeiros/radialnet), into Zenmap. Joao Medeiros has been developing RadialNet for more than a year. For details, complete with some of the most beautiful Zenmap screen shots ever, visit http://nmap.org/book/zenmap-topology.html. The integration work was
- [Zenmap] Another exciting new Zenmap feature is Scan Aggregation. This allows you to visualize and analyze the results of multiple scans at once, as if they were from one Nmap execution. So you might scan one network, analyze the results a bit, then scan some of the machines more intensely or add a completely new subnet to the scan. The new results are seamlessly added to the old, as described at http://nmap.org/book/zenmap-scanning.html#aggregation. [David,Vladimir]
- Expanded nmap-services to include information on how frequently each port number is found open. The results were generated by scanning tens of millions of IPs on the Internet this Summer, and augmented with internal network data contributed by some large organizations. [Fyodor]
- Nmap now scans the most common 1,000 ports by default in either protocol (UDP scan is still optional). This is a decrease from 1,715 TCP ports and 1,488 UDP ports in Nmap 4.68. So Nmap is faster by default and, since the port selection is better thanks to the port frequency data, it often finds more open ports as well. [Fyodor]