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‎COPYING‎

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‎ChangeLog‎

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Version 1.0.2 - March 30, 2000
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- Added retransmits (-m option) (Several people asked)
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- Added output bandwidth throttling (-b option) (Suggested
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by Jason Garman <[email protected]>)
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- Rewrote sending queries and receiving answers part for more
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reliable scanning of large blocks of addresses. (Suggested
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by Jason Garman <[email protected]>)
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- Added script-friendly output option (-s) (Suggested by
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Patrick Heim <[email protected]>)
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- Added printing of human-readable NetBIOS service names (-h)
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(Suggested by Patrick Heim <[email protected]>)
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- Added -q command line option that suppresses printing
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banners and error messages. (Suggested by Sam Bayne
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<[email protected]>)
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- Rewrote parse_response completely. This allows for better
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parsing of Samba servers' responses. (Bug reported by
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Sam Bayne <[email protected]>)
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- Added -d command line option which makes whole packets
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get printed
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- Various cosmetic improvements including fixing some
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spelling errors
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Version 1.0.1 - May 5, 1999
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- Fixed incorrect parsing of MAC address in parse_response()
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which made last byte of MAC addresses appear as 00. Bug
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pointed by Joseph Moon.
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- Changed message saying "Warning: -r option not supported
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under NT." to more accurate saying: "Warning: -r option not
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supported under Windows."
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- Corrected a typo in README.

‎Makefile.in‎

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INSTALL=@INSTALL@
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CC=@CC@
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LIBS=@LIBS@
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CFLAGS = @CFLAGS@
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OBJECTS=nbtscan.o statusq.o range.o list.o
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DEFS=@DEFS@
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TARGET=@TARGET@
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BINDIR=@BINDIR@
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nbtscan: $(OBJECTS)
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$(CC) $(CFLAGS) -o nbtscan $(OBJECTS) $(LIBS)
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install:
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$(INSTALL) $(TARGET) $(DESTDIR)$(BINDIR)/$(TARGET)
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nbtscan.o: nbtscan.c statusq.h range.h list.h
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$(CC) $(CFLAGS) $(DEFS) -c nbtscan.c
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statusq.o: statusq.c statusq.h
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$(CC) $(CFLAGS) $(DEFS) -c statusq.c
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range.o: range.c range.h
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$(CC) $(CFLAGS) $(DEFS) -c range.c
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list.o: list.c list.h
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$(CC) $(CFLAGS) $(DEFS) -c list.c
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clean:
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-rm $(OBJECTS) nbtscan
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distclean: clean
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-rm config.cache config.log config.status Makefile

‎README‎

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NBTscan version 1.0.2. Copyright (C) 1999-2000 Alla Bezroutchko
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NBTscan is a program for scanning IP networks for NetBIOS name
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information. It sends NetBIOS status query to each address in
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supplied range and lists received information in human
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readable form. For each responded host it lists IP address,
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NetBIOS computer name, logged-in user name and MAC address
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(such as Ethernet).
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See http://www.abb.aha.ru/software/nbtscan.html for
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NBTscan homepage.
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LICENSE.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program (in a file called COPYING); if not, write
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to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
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MA 02139, USA.
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INSTALLATION.
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NBTscan compiles and runs on Unix and Windows. I have tested it
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on Windows NT 4.0, Windows 95, Windows 98, FreeBSD 2.2.7,
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FreeBSD 3.1, and Solaris 2.6/Intel. Steve Coleman
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<[email protected]> ported NBTscan to Solaris, HP-UX and
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OSF/1 and fixed several bugs. He reports that NBTscan also runs
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on IRIX/SGI with minor problems.
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Windows:
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To compile this under Windows you will need Cygwin. You can
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download it from http://sourceware.cygnus.com/cygwin/download.html
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Install it and start the shell. Make directory named bin in
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root directory of the drive you have installed Cygwin to.
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Suppose you have installed Cygwin into "C:\Program Files\cygnus".
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Then you should create directory c:\bin. Then you will need
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to mount real bin directory to /bin with the command like that:
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mount "/program files/cygnus/cygwin-b20/H-i586-cygwin32/bin" /bin
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Untar nbtscan with:
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tar zxvf nbtscan.tar.gz
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Go to nbtscan directory and run a script named 'configure' like
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that:
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./configure
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Type 'make' at Cygwin command prompt. This will compile and
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build nbtscan.exe. If make finishes without errors, type
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'make install'. This will copy nbtscan.exe to location specified
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in BINDIR (c: by default).
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To run it independently (without Cygwin) find file named
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cygwin1.dll and copy it to winnt\system32 (or windows\system
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under Windows 95)
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Unix:
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Do
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./configure
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make
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make install
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That's all.
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RUNNING.
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Usage: nbtscan [-v] [-d] [-t timeout] [-b bandwidth] [-r] [-q] [-s separator] <scan_range>
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-v verbose output. Print all names received
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from each host
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-d dump packets. Print whole packet contents.
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Cannot be used with -v, -s or -h options.
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-t timeout wait timeout seconds for response.
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Default 1.
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-b bandwidth Output throttling. Slow down output
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so that it uses no more that bandwidth bps.
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Useful on slow links, so that ougoing queries
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don't get dropped.
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-r use local port 137 for scans. Win95 boxes
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respond to this only.
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You need to be root to use this option on Unix.
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-q Suppress banners and error messages,
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-s separator Script-friendly output. Don't print
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column and record headers, separate fields with separator.
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-h Print human-readble names for services.
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Can only be used with -v option.
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-m retransmits Number of retransmits. Default 0.
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<scan_range> what to scan. Can either be single IP
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like 192.168.1.1 or
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range of addresses in one of two forms:
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xxx.xxx.xxx.xxx/xx or xxx.xxx.xxx.xxx-xxx.
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Examples:
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nbtscan -r 192.168.1.0/24
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Scans the whole C-class network.
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nbtscan 192.168.1.25-137
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Scans a range from 192.168.1.25 to 192.168.1.137
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nbtscan -v -s : 192.168.1.0/24
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Scans C-class network. Prints results in script-friendly
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format using colon as field separator.
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Produces output like that:
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192.168.0.1:NT_SERVER:00U
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192.168.0.1:MY_DOMAIN:00G
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192.168.0.1:ADMINISTRATOR:03U
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192.168.0.2:OTHER_BOX:00U
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...
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BUGS/LIMITATIONS
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Windows version has a certain limitation: you cannot scan Win95
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hosts with it because Windows 95 always sends responses to name
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queries to port 137, and you cannot bind to port 137 under
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Windows (it is already taken by Windows itself).
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Report bugs to [email protected] (that's me). I cannot promise to
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do anything but I might well want fix it. Remember: no warranty.
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At least it's worth what you payed for it.

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