Free just 3 software for linux

jwhois provides an Internet Whois client with support for Whois, Rwhois, and HTTP.
jwhois is an Internet Whois client that contains an extensible configuration file, which defines its operation. The client supports queries to foreign hosts, either through the RFC 954 - NICNAME/WHOIS protocol, the RFC 2167 - Referral Whois 1.5 protocol, or HTTP using an external browser.
Upon execution, it searches through its configuration to find the most specific whois server to query. Depending upon the reply from that whois server, it can assume the query was successfull and display the result to the user, or optionally redirect the query to another server to find more specific information.
The configuration file is highly customizable and makes heavy use of regular expressions.
When making a query, JWHOIS looks at the @option{whois-servers} block to determine which host to send the query to. The option @option{type} can be set to change between two different kinds of matching; @option{cidr} or @option{regex}.
JWHOIS implements support for maintaining a cache of Whois data received from Whois servers. This is NOT enabled by default but has to be compiled into the client specifically. The design is such that a central database is maintained by the client and because all users should have access to that database, the program must have the set-group-on-execution bit set and the database must be both read and writable by the group.
The configuration options available are CACHEFILE and CACHEEXPIRE which sets the database filename and the expire time for cached object. When an object expires from the cache, it is reloaded from the Whois server the next time it is requested. The expire time is measured in hours.
Enhancements:
- Updated jwhois.conf
- Include host name in cache key
- Various bugfixes

ntop is a network traffic probe that shows the network usage, similar to what the popular top Unix command does.
The project is based on libpcap and it has been written in a portable way in order to virtually run on every Unix platform and on Win32 as well.
ntop users can use a a web browser (e.g. netscape) to navigate through ntop (that acts as a web server) traffic information and get a dump of the network status.
In the latter case, ntop can be seen as a simple RMON-like agent with an embedded web interface. The use of:
a web interface
limited configuration and administration via the web interface
reduced CPU and memory usage (they vary according to network size and traffic)
make ntop easy to use and suitable for monitoring various kind of networks.
Main features:
- Sort network traffic according to many protocols
- Show network traffic sorted according to various criteria
- Display traffic statistics
- Store on disk persistent traffic statistics in RRD format
- Identify the indentity (e.g. email address) of computer users
- Passively (i.e. withou sending probe packets) identify the host OS
- Show IP traffic distribution among the various protocols
- Analyse IP traffic and sort it according to the source/destination
- Display IP Traffic Subnet matrix (whos talking to who?)
- Report IP protocol usage sorted by protocol type
- Act as a NetFlow/sFlow collector for flows generated by routers (e.g. Cisco and Juniper) or switches (e.g. Foundry Networks)
- Produce RMON-like network traffic statistics
Additional features of "ntop":
- Network Flows
- Local Traffic Analysis
- Multithread and MP (MultiProcessor) support on both Unix and Win32
- Perl/PHP/Python lightweight API for accessing ntop from remote
- Support of both NetFlow andsFlow as flow collector. ntop can collect simultaneously from multiple probes.
- Traffic statistics are saved into RRD databases for long-run traffic analysis.
- Internet Domain, AS (Autonomous Systems), VLAN (Virtual LAN) Statistics
- Network assets discovery and categorization according to their OS and users
- Protocol decoders for most of known P2P (Peer to Peer) protocols
- Advanced per user HTTP password protection with encrypted passwords
- RRD support for persistently storing per-host traffic information
- Passive remote host fingerprint (Courtesy of ettercap)
- HTTPS (Secure HTTP via OpenSSL)
- Virtual/multiple network interfaces support
- Graphical Charts (via gdchart)
- WAP support

AutoRPM is a Perl program that automates RPM installation. AutoRPM project is designed to be run from cron nightly and run interactively as necessary.
By default, every night, it will check for official Red Hat updates for your system. However, you can modify the configuration file to do much more... like automatically install the same RPMs on a cluster of machines.
The interactive mode lets you actually install the updates (by default, RPMs are not upgraded automatically, although they can be).
You can also use the interactive mode to process a directory of RPMs. AutoRPM will compare each file with your installed RPMs and allow you to decide which ones to install.
Options:
--version
Displays the version of AutoRPM and exit.
--debug
Enables very verbose debugging information.
--notty
Usually used from scripts (such as cron scripts) to guarantee
that AutoRPM does not try to interact with a user. When running
interactively, AutoRPM also will print everything to the screen
(i.e. bypassing any configuration in the config file to mail
reports). So, if you are running AutoRPM interactively and want
it to behave as if it is running from a cron job, then you can
use this parameter.
--pidfile
Overrides the default PID file location (particularly useful for
running as a normal user when only updating a directory and not
a system). The default value is /var/run/autorpm.pid.
--tempdir
Overrides the default temporary (spool) directory (particularly
useful for running as a normal user when only updating a direc-
tory and not a system). The default value is
/var/spool/autorpm.
cmd1 cmd2 ...
Any number of commands can be specified on the command line. If
specified, AutoRPM will run all of the commands in the order
given, and then exit. For a list of commands, run "autorpm
help". For help on a given command, run "autorpm help com-
mand_name".
Enhancements:
- Added Fedora Legacy update pool

SiteBar project is a solution for people who use multiple browsers or computers and want to have their bookmarks available from anywhere without need to synchronize them or take them along. The bookmarks are stored on a server - this could be:
SiteBar server run by its authors (you dont need to install SiteBar software - just sign up our service);
another public server running our SiteBar software;
your own server running our free SiteBar software.
The bookmarks are displayable/modifiable in almost any standards compliant browser.
SiteBar allows you keeping links private (the default) while giving you possibility to grant access to your bookmarks to selected user groups or to everyone. You can maintain your personal, family, team, company or enterprise-wide bookmarks with flexible access rules, permissions and customizable design!
Using RSS feeds you may monitor what additions have been added to certain SiteBar folders or to the whole SiteBar installation.
Enhancements:
- Tree class and sanity module improved to consume less memory.
- Fixed display of the statistics for SQL queries.
- Group management functions should not be available to anonymous users.
- Fixed warning when filtering user groups using empty filter regexp.
- Improved code for adding page in IE so that it works with IE 6.0 (was showing error accessing external.menuArguments.document).
- Some keys for the MS IE integration installer were moved from HKEY_CURRENT_USER to HKEY_LOCAL_MACHINE. This solved problem experienced by some MS IE 6.0 users (and actually conforms to the tutorial from MS).
- Fixed "mobile" SiteBar writer - adapted to changed plugin API.
- Feed URL fixed again. Be warned, it does not seem granted it will work forwever.
- Use relative path for JavaScript - it should be found there.
- Private links were not loaded over AJAX.
- Feed URL fixed, URL is now encoded before sending to the reader.
- When "Auto Retrieve Favicon" was turned off, the URL has not been prefilled when adding a link.
- Folders loaded via AJAX were not using externally set target attribute.
- [B120] Language detection not working for nb_NO/no_NO.
- [B118] Remove "content" from "Add Page" bookmarklet.
- [B111] Enter key not working in the search field for searching web in IE. window.open is now used instead of trying to set proper window location.href
- Development releases now marked with svn after version number.
- Fixed wrong path composition when changing images in the JavaScript.
- [B112] entity incorrectly used in HTML output causing problems in IE.
- Do not force version check upon each execution of SiteBar Settings.
- Avoid using function mysql_real_escape_string with PHP less then 4.3.
- [B114] Online help URL should be encoded.
- [B113] "Create Group" - default moderator should be current user.
- Fixed web search URL (replaced %25 back to %).
- Frontend filtering is back - requested by users.
- Fix favicon handling when added a link.
- Rename no_NO to nb_NO (http://tinyurl.com/epozf).
- Replace menu expanding using "two lines" with graphics. Placing mouse over the line of the double arrow expands the collapsed context menu.
- Fixed accented characters for some locales in the language name.
- Fixed ru_RU locale - caused blank pages on some installations.
- Removed ampersand conversion to entity in text emails during account approval.
- Fixed toggling of class name of disabled items.
- Fixed declaration of new javascript variables.
- Fixed incorrect enabling of commands in context menus.
- Disable HTTP traffic loggin.
- Disable automated downgrade, only one release can be downgraded at a time.
- "Email Verified" and "Invalid Token" changed to inplace commands.
- Some account creation messages were using email instead of username.
- Fix update of translations.

pam_sotp PAM module provides support for One Time Passwords (OTP) authentication. The "s" in "sotp" stands for "simple"; pam_sotp aims to be a simple, easy to configure, module.
pam_sotp is still under early stages of development. Although it seems to work pretty well be warned that this software could contain severe bugs that may put at risk the security of your system. Until a stable release is reached you are advised to not use pam_sotp on mission-critical systems or production servers.
Having said that, it seems that the software is reaching an stable stage. Ive received several reports about pam_sotp being used without problems in several configurations.
This project is way too small to have a serious roadmap, but anyways I guess that some of you would like to know what are my short/medium term plans for pam_sotp, so here they are:
Release pam_sotp 0.4.0, with some patches I received and other improvements I have in mind
Maintain the 0.4.x branch until it becomes stable
Release a couple of 1.0 release candidates and then finally pam_sotp 1.0
Maintain the 1.0 branch
Enhancements:
- Added disable and enable commands to otppasswd
- Bugfix: SGID shadow applications could not authenticate against pam_sotp (some SUID code somehow remained in pam_sotp)

pkdump is a port scanning detection tool. The program detect any TCP ,UDP port scanning or open connection attempt from foreign host over the internet with IP protocol version 4
or IP protocol version 6 .
The program can detect:
TCP connect , TCP syn , TCP fin , TCP xmas, TCP ack, TCP null(no flags), UDP port (connect) and UDP null (0 bytes, UDP packets lengt ) , whether the IP packet are fragmented or not. (Please consult "Nmap"... man Nmap).
The program make a directory like this : "Pkdump-[date][time]" and in this directory make a file "PKDATA" that contains all IP packet sent and received during the transmission ,and during scanning attack make files that contains the data of the attack ;the data of the port scanning will displayed on the screen with a short beep;
Enhancements:
- Fixed bug in read-write operation.
- Show the number of IP fragment.

Mp3blaster is an mp3 player for computers running a UNIX-like operating system, e.g. Linux, Free/Net/OpenBSD, etc. mp3blasters interface is entirely text based, thereby eliminating the need for a graphical environment like X-Windows.
This does not limit the way you can control the player whilst playing though; just like any graphical mp3 player, there are cd-style buttons like play, stop, pause, next track, etc.
While hardly anyone had ever heard of mp3 back in early 1997, I began to build up my own mp3 collection. As a Linux (text console) adept, I was heavily frustrated by the lack of a decent mp3 player. There was a (at the time) very popular command-line based mp3 player though, called splay. I figured I could use its mpeg decoding library and write my own interface in ncurses to control it. The plan was there!
Thinking about how to implement this interface, I also wondered why all mp3players had such plain playlist functionality! I like the ability to chuck a bunch of CDs in a multi-CD cd player, and then play the CDs in random order. In such a way that the cd player selects one of the five CDs at random, and then plays the entire disc. This continues, until all discs have been played. No mp3 player could do this, so I decided to add it to mine.
Enhancements:
- A parallel build bug was fixed. make -j now works.
- Dynamic screen resizing was implemented.
- A race condition that caused 100% CPU consumption at the end of each song was fixed.

PyQt project is a set of Python bindings for the Qt toolkit. The bindings are implemented as a set of Python modules: qt, qtcanvas, qtgl, qtnetwork, qtsql, qttable, qtui and qtxml, and contains 300 classes and over 5,750 functions and methods.
PyQt also implements the qtext Python module. PyQt project is a set of Python bindings for the Qt toolkit.
PyQt is licensed under the GNU GPL (for UNIX/Linux and MacOS/X), under the Qt Non-commercial License (for use with the Qt v2.3.0 non-commercial version for windows), under the Qt Educational License (for use with the educational edition of Qt for Windows), and under a commercial license (for Windows, UNIX/Linux and MacOS/X). You can purchase the commercial version of PyQt here.
There is also an evaluation version of PyQt for Windows. This must be used with the corresponding evaluation version of Qt.
PyQt supports Qt versions 1.43 to 3.3.4 and Python versions 1.5 to 2.4. PyQt will normally work with newer versions of Qt and Python without change. If changes are required then these are normally added to snapshots within a few days. PyQt has been ported to Windows, MacOS/X and UNIX/Linux.
Note that PyQt does not yet support Qt v4.
PyQt has also been ported to Qt/Embedded and supports the Qt Palmtop Environment (aka Qtopia) through the qtpe Python module.
Binary packages of PyQt are provided for the non-commercial, educational, and evaluation versions of Qt for Windows.
The GPL version of PyQt is included with most of the main Linux distributions.
PyQt brings together the Qt C++ cross-platform toolkit and the cross-platform interpreted language Python.
Qt is primarily a GUI toolkit. It has a comprehensive set of widgets modelled as C++ classes including a fast canvas widget and a rich-text editor. Qt also includes many other useful classes implementing, for example, access to SQL databases and an XML DOM parser.
Qt classes employ a signal/slot mechanism for communicating between objects that is type safe but loosely coupled making it easy to create re-usable software components.
Qt also includes a graphical user interface designer and an associated utility uic than converts a design into the corresponding C++ code.
Python is a simple but powerful object-orientated language. Its simplicity makes it easy to learn, but its power means that large and complex applications can be created. Its interpreted nature means that Python programmers are every productive because there is no edit/compile/link/run development cycle.
Much of Pythons power comes from its comprehensive set of extension modules providing a wide variety of functions including HTTP servers, XML parsers, database access, data compression tools and, of course, graphical user interfaces.
Extension modules are usually implemented in either Python, C or C++. Using tools such as SIP it is relatively straight forward to create an extension module that encapsulates an existing C or C++ library. Used in this way, Python can then become the glue to create new applications from established libraries.
PyQt combines all the advantages of Qt and Python. A programmer has all the power of Qt, but is able to exploit it with the simplicity of Python.
PyQt includes pyuic which takes the same designs that uic converts to C++, but converts them to the equivalent Python code. This makes PyQt particularly useful as a rapid prototyping environment for applications that will eventually be implemented in C++.
Enhancements:
- This release is needed if SIP v4.7 or later is being used.