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Add the new port frequency features to the CHANGELOG

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fyodor 2008-09-05 02:49:51 +00:00
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CHANGELOG
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# Nmap Changelog ($Id$); -*-text-*-
o 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.
o 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, often finds more
of the open ports as well.
o Nmap fast scan (-F) now scans the top 100 ports by default in either
protocol. This is a decrease from 1,276 (TCP) and 1,017 (UDP) in
Nmap 4.68, leading to an order of magnitude decrease in port
scanning time.
o The --top-ports option lets you specify the number of ports you wish
to scan in each protocol, and will pick the most popular ports for
you based on the new frequency data. For both TCP and UDP, the top
10 ports gets you roughly half of the open ports. The top 1,000
(out of 65,536 possible) finds roughly 93% of the open TCP ports and
more than 95% of the open UDP ports.
o Added dns-safe-recursion-port and dns-safe-recursion-txid (non
default NSE scripts) which use the 3rd party dns-oarc.net to test
the source port and transaction ID randomness of a discovered DNS