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

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

SYNOPSIS
     unhide-tcp [options]

DESCRIPTION
     unhide-tcp  is  a forensic tool that identifies TCP/UDP ports that are lis-
     tening but are not listed by /sbin/ss (or	alternatively  by  /bin/netstat)
     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.

OPTIONS
     -h --help
	    Display help

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

     -f --fuser
	    Display fuser output (if available) for the hidden port On	FreeBSD,
	    instead  of  fuser command, displays the output of the sockstat com-
	    mand 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 direc-
	    tory.

     -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.

SEE ALSO
     unhide (8).

AUTHOR
     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, Version  3
     or any later version published by the Free Software Foundation.

LICENSE
     License   GPLv3+:	 GNU   GPL   version   3  or  later  <http://gnu.org/li-
     censes/gpl.html>.
     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)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=unhide-tcp&sektion=8&manpath=FreeBSD+Ports+15.1.quarterly>

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