man knocker (1): An easy to use network security port scanner

SYNOPSIS

knocker --host <host> [OPTION]

DESCRIPTION

knocker is a simple and easy to use TCP security port scanner written in C using pthreads which is able to analyze hosts and all of the different services started on them.

OPTIONS

-H, --host: host name or numeric Internet address to scan
-P, --port: port number to scan (single port scan only)
-SP, --start-port: port number to begin the scan from
-EP, --end-port: port number to end the scan at
--last-host: uses the last scanned host as target
--last-scan: performs again the last port scan
-q, --quiet: disable console output and logs to file.
-lf, --logfile <logfile>: log the results to a specified file.
-nf, --no-fency: disable fency output
-nc, --no-colors: disable colored output
--configure: let the user configure knocker
-h, --help: display this help and exit
-v, --version: output version information and exit

EXAMPLES

To run this program the standard way type:

knocker --host 192.168.0.1

If you want to specify a port range to scan:

knocker --host thehost --start-port 1 --end-port 2600

knocker -H thehost -SP 1 -EP 2600

To scan a single port:

knocker -H thehost --port 21

To run this program not using colors (if your terminal does not support colors):

knocker --host 192.168.0.1 --no-colors

To run this program run in background and have the results written in a log file:

knocker --host 192.168.0.1 --quiet &

AVAILABILTY

The latest version of this program can be found at http://knocker.sourceforge.net

BUGS

See the BUGS file in the knocker source package for a list of known bugs. Report bugs to <[email protected]>

AUTHOR

knocker is written by Gabriele Giorgetti <[email protected]>