Free conntrack viewer software for linux

The Multithread Network Port Scanner uses 50 POSIX threads to scan hosts. In 1 minute Up to 1000 ports can be scanned by it .
Conntrack-Viewer is a perl script to view the masquerading connections with iptables, it uses /proc/net/ip_conntrack
With ipchains, it was extremely easy to view the masquerading connections, netstat -M or netstat --masquerade gave you the result right away.
But since iptables, if you try this you will get: "netstat: no support for `ip_masquerade on this system.". With iptables, the informations regarding the masquerading connections are accesible via /proc/net/ip_conntrack wich is extremely hard to read
This is why Conntrack-Viewer is so helpfull, it make those criptic results a lot more legible.
Enhancements:
- changed the service detection to use distant AND source port

Opcion Font Viewer is a free font viewer written in Java that allows you to view both installed and uninstalled TrueType fonts on Windows, Linux, Unix or Mac.
The main focus of Opcion is to allow you to view your uninstalled fonts so that you install only the fonts you want and keep your system memory free of fonts you dont want.
As you may have experienced, installing the brand new 1000 fonts font pack you just bought on your Windows, Linux, Unix or Mac computer can lead to slow-downs when starting the computer and when loading other programs.
The slow down occurs because the Operating System and certain programs (e.g. word-processors, email clients, graphics editors) need to load all system fonts so that they can be made available to you at any time. This is where Opcion comes in.
Opcion was written to handle the viewing of large font collections, therefore only fonts that you are currently viewing are stored in memory. Although the amount of physical memory you have will effect how many fonts you can view at a time, it will no longer be a limitation to you making use of your entire font library.
Another problem with most Operating Systems default font viewers is that while they are capable of viewing fonts, the default Windows/Linux/Unix font viewers only allows you to view fonts that are already installed and one at a time. Opcion allows you to view TrueType fonts located anywhere and allows you to view system fonts as well.
To help you pick the best font for the job, whether it be for your assignment, project logo or webpage, Opcion provides a list view of either system or other/uninstalled fonts so you may see how a font looks compared to other fonts in your collection.
When you see a font that you feel suits your current job you can simply click on it in the list view and it will be added to a favourites list that can then be saved for future reference or used to install only the fonts you want.
For viewing fonts, seeing how they would appear applied to your name/logo/tagline, and keeping track of which fonts best suit the job is the purpose of Opcion Font Viewer. Opcion allows you to view both installed and uninstalled fonts in different views depending on your needs. Written in Java, Opcion will work on all platforms that the Java Runtime Environment supports (which includes Windows, Mac, Solaris & Linux).
Opcion Font Viewer provdies a default view that allows you to view one font at a time, and a list view which allows you to view multiple fonts at a time. By clicking on fonts you like in the list view you are adding fonts to a faviourties list that Opcion keeps for you. The faviourites list can then be saved for future reference or used in finding out the file names of fonts you wish to install.
Main features:
- Viewing of installed/uninstalled fonts.
- List view of installed/uninstalled fonts.
- Adding/removing of favourite fonts.
- Saving of favourite fonts.
- Customizable sample/display text.
- Customizable font size.
- Customizable font properties (bold, italic, etc.) in sample text area.
- Changeable fonts displayed per page in List View.
Execute Opcion Font Viewer
To execute Opcion Font Viewer in Windows, download the EXE version. For Linux users use the command "java -jar Opcion_v1.1.1.jar" in console/terminal/shortcut.
Exception in thread "main" java.lang.UnsatisfiedLinkError: /usr/java/j2re1.4.1_02/lib/i386/libfontmanager.so: libstdc++-libc6.1-1.so.2: cannot open shared object file: No such file or directory
This error occurs due to backwards compatibility issues with the Java Runtime and libstdc. To fix this problem for RedHat 9.0 install the RPM file compat-libstdc++-7.3.2.96.118.i386.rpm, which can be found on disc 1 of the downloadable distro. For other Linux distributions check rpmfind.net for libstdc++-libc6.1-1.so.2 to see what package you need to install.
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x4CAEE920 Function=(null)+0x4CAEE920 Library=/usr/local/lib/SunJava2-1.4.2/lib/i386/libfontmanager.so
This error appears to be a problem with Sun Microsystems Java implementation for Linux, the real cause for this crash is still being investigated. There are no solutions to this problem yet.
Opcion crashes during execution when using Blackdown Java Virtual Machine.
Opcion Font Viewer was programmed for Sun Microsystems JVM, and it uses Suns Java API extensively. Thus, it is highly recommended that you use the latest Java Runtime Environment instead of other JVMs.
Enhancements:
- Added sorting to other fonts list.

Process Viewer is a small utility similar to top which displays all the processes on a linux system. Its written using the FOX Toolkit.

Process Viewer is licensed under the GNU General Public License

ThinkFree Viewer allows you to view ThinkFree or Microsoft Office word processing, spreadsheet, and presentation files without having any other office applications installed. After installing the appropriate Widget simply drag and drop files from your desktop, or copy and paste the Web URL into the ThinkFree Widget.

ThinkFree Widgets allows users to open email attachments with ease, and supports the following file formats: .doc, .rtf, .txt, .xls, .csv, .ppt, and .pps.

Sysquake Viewer is an application which lets you load and manipulate interactively graphics developed with Sysquake.

Sysquake Viewer is much more limited than Sysquake LE, which supersedes it on Mac OS and Windows. We still provide it as a preview release for Linux on i386 and for Solaris on Sparc, until we have a robust beta version of Sysquake LE for Unix.

On Unix, files are archived with tar. In a terminal, type tar xzf sqviewer*tgz to un-archive them.

The preview is made available to you so that you can test it and provide feedback, and to have a broader range of platforms where SQ files can be viewed. It has no expiration date.

vt52vnc is a VNC viewer which can be used on prehistoric green monochromatic terminals called vdt52s, which are capable of vectorgraphics. vt52vnc is a VNC ( http://www.uk.research.att.com/vnc ) viewer, which can be used on old, green, monochromatic, prehistoric terminals labeled vdt52s, which are capable of vector graphics.The software is functional, but incomplete for now: it does not support compression, passwords and there are many ways to optimize the output.


Mouse:
As vdt52s does not have the mouse or any other pointing device, one of three unlabeled buttons near the numeric keypad have been used to act as mouse-lock. When you depress it, you can use the numeric keypad to move the mouse, and `+, `-, `., `enter, `0, and `5 as button 1,2,3 toggle and button 1,2,3 click.

Speed:
Based on my own experiences, I recommend the speeds 38400 and higher for "real work". The screen is drawn by rectangles. This is done to improve the reaction times, when the screen changes very often.

The software uses the XOR mode to actually draw the image, which can be improved using AND and OR mode in some cases. One can also imagine another optimizations for particular shapes. I will not add those optimizations, as the decisions are very memory-consumptive and after all, I dont want to implement some kind of prolog just to
choose the right one. If you want to improve it, let me know.

Colors:
The monochromatic translation is done by some bit of green color, which can be changed at the beginning of vncproto.c. If you want to make it better (implement some dithering or (better) the shape finding algorithm), let me know.

Why and how:
The work was inspired by mine never-ending desire for an X display on the "frog". Display drawings are based on the graphics library by Marek Zelem, which is, in turn, based on the documentation for vdt52s, as my work is based on vnc protocol documentation. Coded, of course, on vdt52s terminal with wrong Enter and Control. The sources are written to be easily extended.

Installation & running
1) edit Makefile to adjust some parameters,
vi Makefile
2) run `make
make
3) optionally install:
cp vt52vnc /usr/local/bin

frob 3D viewer project is a 3D object point/wireframe/polygon viewer - called frob3dv for lack of a better name.

I wrote this version mainly to learn c++. Also it was the first program I wrote after I got a PC (and put linux on it), but it has a long history. Many years ago I wrote a few stacks in Hypercard (on a Mac SE) for editing and displaying 3d shapes. I then ported it to modula-2 , using the free MacMETH compiler, then MOPS, a great free object-oriented programming language and application framework for the mac.

That is where it got most of its current class hierarchy. At that stage it was still only a wire-frame viewer. I then ported it to c++ for the macintosh using the Macintosh Programmers Workshop. When I wiped Windoze off my PC and put an operating system (linux) on it, I ported it to X and added the polygon drawing.

pynetfilter_conntrack is a Python binding of libnetfilter_conntrack. The binding is the file pynetfilter_conntrack.py and you have also a clone of conntrack program: conntrack.py.
Conntrack.py
Conntrack.py is a clone of conntrack C program. Features:
- list: List connections ;
- xml: Export connections to XML document ;
- delete: Delete connection.
For all commands, you can filter connections with:
- source/destination address from original/reply destination ;
- layer 3 and 4 protocols ;
- source/destination port from original/reply destination (for protocols tcp, udp and sctp).
Enhancements:
- Compliance with pickle, minor enhancements to the API, and a debian/ subdirectory for Debian and Ubuntu packaging. setup.py no longer uses setuptools by default.