knocker - Simple and easy to use TCP security port scanner

Property Value
Distribution Debian 8 (Jessie)
Repository Debian Main amd64
Package name knocker
Package version 0.7.1
Package release 4
Package architecture amd64
Package type deb
Installed size 97 B
Download size 32.11 KB
Official Mirror
Knocker is a new, simple, and easy to use TCP security port
scanner written in C, using threads. It is able to analyze hosts
and the network services which are running on them.


Package Version Architecture Repository
knocker_0.7.1-4_i386.deb 0.7.1 i386 Debian Main
knocker - - -


Name Value
libc6 >= 2.7


Type URL
Binary Package knocker_0.7.1-4_amd64.deb
Source Package knocker

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install knocker deb package:
    # sudo apt-get install knocker




2012-02-23 - Khalid El Fathi <>
knocker (0.7.1-4) unstable; urgency=low
* New maintainer (Closes: #654324).
* Update copyright file.
* Add Vcs-{Browser,Git} pointing to collab-maint/knocker.git
* Apply patch by Mats Erik Andersson <> to
implement support for IPv6 probing (Closes: #616311).
* Fixed lintian warnings:
- W: knocker source: debhelper-but-no-misc-depends knocker
- W: knocker source: package-uses-deprecated-debhelper-compat-version 4
- W: knocker source: changelog-should-mention-nmu
- W: knocker source: ancient-standards-version 3.8.0 (current is 3.9.3)
- W: knocker: description-synopsis-starts-with-article
2008-10-05 - Michael Meskes <>
knocker (0.7.1-3.1) unstable; urgency=low
* NMU, to make package fit for Lenny.
* Apply patch by UlisesVitulli <> to fix segfault,
closes: #194869, #333214
* Fix watch file, patch by Raphael Geissert <>,
closes: #450036
* Upgraded to standards version 3.8.0, only change needed was to move
homepage information to its own control field.
2005-09-02 - Pablo Lorenzzoni <>
knocker (0.7.1-3) unstable; urgency=low
* Upgraded Standard-Version
* Fixes typo in manpage (Closes: #323531)
* Added debian/watch file
* Switched to CDBS
* Moved knocker out of /bin to /usr/bin (Closes: #323995)
* Changed the options parsing order: now parses the config-file and
then the line arguments, so it can get the override config-file with
the line options. (Closes: #264548)
2004-02-23 - Pablo Lorenzzoni <>
knocker (0.7.1-2) unstable; urgency=low
* Upgraded Standard-Version
* Add URL to the description
2002-06-14 - Pablo Lorenzzoni <>
knocker (0.7.1-1) unstable; urgency=low
* New upstream release
* Option --configure added. It creates a knocker.conf under ~/.knocker.
* Option --no-fency added. It shows the output in a "polite" way.
* Unit knocker_led added to blink the keyboard leds while scanning
* Option --quiet-mode is now known as just --quiet.
2002-02-20 - Pablo Lorenzzoni <>
knocker (0.6.0-1) unstable; urgency=low
* New upstream release
* Console output changed and big portions of code were rewritten.
* All the fprintf(...) stuffs now under knocker_output for sake of cleaner
* Code to output debug messages added.
* TCP connect port scan code should be faster.
* knocker_core totally redesigned (and rewritten) to be more flexible
and versatile. Plans are to make it available as a library/DLL.
* Added header file definitions to prevent multiple file inclusion.
* Option --port or -P added to perform a portscan on a single port.
* Threads code removed. It will be redesigned i the future.
* Fixed total scanned ports result counting bug (Closes: #107680).
* Fixed segfault when logfile couldn't be opened.
* Compiling with -Wall -ansi -pedantic now.
* Module terminal.c renamed to knocker_term.c
2002-02-05 - Pablo Lorenzzoni <>
knocker (0.5.0-2) unstable; urgency=low
* Fixes buildd installation permission problems (Closes: #132414).
2002-01-03 - Pablo Lorenzzoni <>
knocker (0.5.0-1) unstable; urgency=low
* New upstream release.
* Added the following options: --quiet-mode (write to knocker_scan.log
instead of writing to stdout); --enable-logfile (same as before, but
stdout is enabled); --no-threads (for the ones that are facing
problems with threads).
* Added modules knocker_log.c, knocker_log.h to support the new
file logging functions.
2001-07-30 - Pablo Lorenzzoni <>
knocker (0.4.0-1) unstable; urgency=low
* New upstream release.
* Added colored output (and a --no-colors option).
2001-07-23 - Pablo Lorenzzoni <>
knocker (0.3.0-1) unstable; urgency=low
* New upstream release. Now knocker use pthreads.

See Also

Package Description
knode_4.14.1-1+deb8u1_amd64.deb graphical news reader
knot-dnsutils_1.6.0-1+deb8u1_amd64.deb Clients provided with Knot DNS (kdig, knslookup, knsupdate)
knot-doc_1.6.0-1+deb8u1_all.deb Documentation for Knot DNS
knot-host_1.6.0-1+deb8u1_amd64.deb Version of 'host' bundled with Knot DNS
knot-libs_1.6.0-1+deb8u1_amd64.deb authoritative domain name server
knot_1.6.0-1+deb8u1_amd64.deb authoritative domain name server
knotes_4.14.1-1+deb8u1_amd64.deb sticky notes application
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knutclient_1.0.5-1_amd64.deb KDE GUI that displays UPS statistics from NUT's upsd
ko.tex-base_0.1.0+20071012-1.2_all.deb Korean TeX: Base fonts
ko.tex-extra-hlfont_0.1.0-1_all.deb Korean TeX: Extra HLaTeX fonts
ko.tex-extra_0.1.0+20071012-1.2_all.deb Korean TeX: Extra fonts
kobodeluxe-data_0.5.1-6_all.deb game of space battle -- shared data
kobodeluxe_0.5.1-6_amd64.deb game of space battle
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