the User-Agent header sent by NSE from its default of "Mozilla/5.0
(compatible; Nmap Scripting Engine; http://nmap.org/book/nse.html)".
You can set it to the empty string to disable the User-Agent
entirely. [David]
try /favicon.ico if that fails. If the favicon.uri script arg is given,
only try that. Use more robust parsing to find the <link> element; in
particular, be case insensitive.
which inadvertently made setting the locale with the LANG
environment variable stop working. Now the LANG variable is examined
first, and if that is not present, the system-wide setting is used.
with modifications from [2].
** Short description from [1] **
I have created a patch to NSE that replaces runlevels with a table of
dependencies that clearly outlines what other scripts the script
depends on. The table is of the form:
dependences = {"script1", script2", ...}
Runlevels become an internal representation of the order of scripts
that are generated by the dependencies. Dependencies only enforce
an execution order and not a requirement for execution.
[1] http://seclists.org/nmap-dev/2009/q4/295
[2] http://seclists.org/nmap-dev/2009/q4/446
sending the second probe if the first caused an error. This is based on
the results of a test by Richard Sammet showing that the default timeout
of 30 s is too long when scanning many open|filtered ports that are in
fact filtered.
o Reduced memory usage in several areas. The size of the internal
representation of nmap-os-db was reduced more than 90%. The size of
individual Port structures without service scan results was reduced
about 70%. When a port receives no response, Nmap now avoids
allocating a Port structure at all, so scans against filtered hosts
can be light on memory. Thanks to Pavel Kankovsky for the Post size
reduction patch. [David]
changes. The first is that Port objects don't allocate memory for
service and RPC results unless that information is set. This reduces the
size of a bare Port from 92 to 40 bytes on my machine. The second change
is that PortList now has the notion of a "default port state," which is
the state of any ports that didn't receive a response. These ports don't
need an allocated Port object, which saves a lot of memory in scans
where most ports didn't get a response.
