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
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This document was created by man2html, using the manual pages.
Time: 12:37:51 GMT, July 10, 2022