PORTSCAN
Section: User Commands (1)
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BSD mandoc
Security application
NAME
PortScanner
- TCP port scanning program by Tennessee Carmel-Veilleux
SYNOPSIS
portscan
[-v
]
[-vv
]
[-b port
]
[-e port
]
[-bm id
]
[-em id
]
[-a
]
[-s
]
[-
]
[-h
]
[-i
]
[address
]
DESCRIPTION
The
portscan
utility scans for listening TCP ports on a remote host and returns a list
of the ports it finds through STDOUT
Options are:
- -v vv
-
Both those options are used to select the level of verbosity for the
output of
portscan.
-v is level 1, -vv is level 2. Default is level 0, in which only the
address followed by the ports followed by a pound are sent to the output,
each on a different line. Level 1 introduces some more information, and
level 2 is the level to use if a human being is going to read the output.
Level 0 is well suited for input to an interface, as it only contains bare
information that can be easily processed by a simple parser.
- -b
-
Sets the port at which
portscan
starts its scanning. Default is 1.
- -e
-
Sets the port at which
portscan
ends its scanning. Default is 1024.
- -bm
-
Sets the machine ID in the subnet at which
portscan
starts scanning if it is in subnet-scanning mode.
- -be
-
Sets the machine ID in the subnet at which
portscan
stops scanning if it is in subnet-scanning mode.
- -a
-
Argument present if you want
portscan
to scan the entire subnet containg the address.
- -s
-
Argument present if you want
portscan
to use strobe-scanning. Strobe scanning is a method of scanning that ONLY
scans for ports present in your
/etc/services
file. It is useful if you want fast scanning over only the commonly used
ports.
- -? h
-
Prints out a message containing the description of the arguments that
portscan
can use.
- -i
-
Prints out miscellaneous information about
portscan
including date of compilation and version.
portscan
will scan ONLY for TCP ports, as UDP ports use a different scanning
method. The output consists, in level 0 of verbosity, of the following
informations: line 1 contains the IP address of the scanned system, the
following lines are read and contain the numbers of the ports that have
been detected as listening sockets. The interface program should stop
reading ports for the current address when the pound ('#') sign is read.
Next records follow is subnet-scanning mode is enabled.
HISTORY
The
portscan
utility was created by Tennessee Carmel-Veilleux (veilleux@ameth.org) in
1998. It is now version 1.2
PEOPLES WHO HAVE PARTICIPATED
Tennessee Carmel-Veilleux(veilleux@ameth.org)
Author
Alexandre Carmel-Veilleux(saruman@linenoise.org)
Security information, maintainer of digimelt
Philippe Rivard (rivardp@cyberus.ca)
Error Corrections, Suggestions, Interfacing, Porting
Ken Williams (PacketStorm@genocide2600.com)
Error corrections
PROPAGANDA :)
||*|| This program was written entirely in Canada
||*|| Ce programme a ete entierement ecrit au Canada
Support Linux, visit www.linux.org and www.gnu.org
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- HISTORY
-
- PEOPLES WHO HAVE PARTICIPATED
-
- PROPAGANDA :)
-
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Time: 12:37:51 GMT, July 10, 2022