UNHIDE-TCP(8)               System Manager's Manual              UNHIDE-TCP(8)

       unhide-tcp -- forensic tool to find hidden TCP/UDP ports

       unhide-tcp [options]

       unhide-tcp  is  a  forensic tool that identifies TCP/UDP ports that are
       listening but are not listed by /sbin/ss (or alternatively by /bin/net-
       stat) through brute forcing of all TCP/UDP ports available.
       Note1  :  On  FreeBSD  ans OpenBSD, netstat is allways used as iproute2
       doesn't exist on these OS. In addition, on FreeBSD,  sockstat  is  used
       instead  of fuser.  Note2 : If iproute2 is not available on the system,
       option -n or -s SHOULD be given on the command line.

       -h --help
              Display help

              Don't display warning messages, that's the default behavior.

       -f --fuser
              Display fuser output (if available) for the hidden port On Free-
              BSD,  instead of fuser command, displays the output of the sock-
              stat command for the hidden port.

       -l --lsof
              Display lsof output (if available) for the hidden port

       -n --netstat
              Use /bin/netstat instead of /sbin/ss. On system with many opened
              ports, this can slow down the test dramatically.

       -s --server
              Use  a  very quick strategy of scanning. On system with a lot of
              opened ports, it is hundreds times faster than ss method and ten
              thousands times faster than netstat method.

       -o --log
              Write  a  log  file  (unhide-tcp-AAAA-MM-DD.log)  in the current

       -V --version
              Show version and exit

       -v --verbose
              Be verbose, display warning message (default :  don't  display).
              This option may be repeated more than once.

   Exit status:
       0      if no hidden port is found,

       4      if one or more hidden TCP port(s) is(are) found,

       8      if one or more hidden UDP port(s) is(are) found,

       12     if one or more hidden TCP and UDP ports are found.

       unhide (8).

       This manual page was written by Francois Marier francois@debian.org and
       Patrick Gouin.  Permission is granted to copy, distribute and/or modify
       this  document  under the terms of the GNU General Public License, Ver-
       sion 3 or any later version published by the Free Software Foundation.

       License     GPLv3+:     GNU     GPL     version     3     or      later
       This  is  free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

Administration commands           August 2012                    UNHIDE-TCP(8)
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