Nmap 2.54BETA2 released

[Fyodor <fyodor () insecure org>]

Hello everyone,

I am pleased to announce the release of Nmap 2.54BETA2.  Here are some of
the most important changes:


-- Added a shortcut which can make single port SYN scans of a network
   much faster.  For example, if a new sendmail vulnerability is
   found, this reduces the time it takes to scan your whole network
   for port 25.  This shortcut takes effect when you do "-PS<port> -sS
   -p<port>".  For example 'nmap -n -sS -p25 -PS25 24.0.0.0/8".  This
   optimization doubled the scan speed in a 30,000 IP test I performed.

-- Added -sL (List scan).  Just as ping scan (-sP) allows you to short
   circuit the scan right after pinging, -sL allows you to short
   circuit the scan right after target selection.  This allows you to
   see what hosts WOULD be scanned without actually doing it.  The
   hosts will be resolved unles you use -n.  Primary uses:
   1) Get all the IPs in a network (like A.B.C.D/16) and take out
      machines that are too fragile to be scanned safely before
      calling Nmap with the new list (using -iL).
   2) Test that a complex spec like 128.4,5,7-9.*.7 does what you
      expect before actual scanning.
   3) When all you want to do is resolve a bunch of IPs.
   4) You just want results of a zone transfer (if/wnen implemented).

-- Added some new fingerprints and adjusted some others based on
   submissions to the DB (I still have a lot more to go through so
   don't worry if your submission is still not detected).

-- Added a warning when you scan 0 hosts (eg "nmap -v").  There are
   various other output tweaks as well.

For those of you running Linux/x86 w/a recent version of rpm
(www.rpm.org), you can install/upgrade to the newest version of
nmap/nmapfe with these commands:

rpm -vhU (nmap url)
where (nmap url) is one (or both) of these:

http://www.insecure.org/nmap/dist/nmap-2.54BETA2-1.i386.rpm
http://www.insecure.org/nmap/dist/nmap-frontend-0.2.54BETA2-1.i386.rpm

source tarballs and source RPMs are available at:
http://www.insecure.org/nmap/

Let me know if you find any problems.

Cheers,
Fyodor



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