UNHIDE-TCP(8) System Manager's Manual UNHIDE-TCP(8)
unhide-tcp -- forensic tool to find hidden TCP/UDP ports
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.
Don't display warning messages, that's the default behavior.
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.
Display lsof output (if available) for the hidden port
Use /bin/netstat instead of /sbin/ss. On system with many opened
ports, this can slow down the test dramatically.
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.
Write a log file (unhide-tcp-AAAA-MM-DD.log) in the current
Show version and exit
Be verbose, display warning message (default : don't display).
This option may be repeated more than once.
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.
This manual page was written by Francois Marier email@example.com 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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