knocker − An easy to use network security port scanner
knocker --host <host> [OPTION]
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.
−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
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
or
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 &
The latest version of this program can be found at http://knocker.sourceforge.net
See the BUGS file in the knocker source package for a list of known bugs. Report bugs to <g DOT gabriele79 AT genie DOT it>
knocker is written by Gabriele Giorgetti <g DOT gabriele79 AT genie DOT it>
Copyright © 2001,2002 Gabriele Giorgetti
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.