Free very popular software for linux

Very restrictive set of firewall rules script is a sample firewall for ip_tables, the tool for doing firewalling and masquerading under the 2.3.x/2.4.x series of kernels.

Be warned, this is a very restrictive set of firewall rules (and they should be, for proper security). Anything that you do not _specifically_ allow is logged and dropped into /dev/null, so if youre wondering why something isnt working, check /var/log/messages.

This is about as close as you get to a secure firewall. Its nasty, its harsh, and it will make your machine nearly invisible to the rest of the internet world. Have fun.

To run this script you must chmod 700 iptables-script and then execute it. To stop it from running, run iptables -F

Sample:

#Point this to your copy of ip_tables
IPT="/usr/local/bin/iptables"

#Load the module.
modprobe ip_tables

#Flush old rules, delete the firewall chain if it exists
$IPT -F
$IPT -F -t nat
$IPT -X firewall

#Setup Masquerading. Change the IP to your internal network and uncomment
#this in order to enable it.
#$IPT -A POSTROUTING -t nat -s 192.168.1.0/24 -j MASQUERADE
#$IPT -P FORWARD ACCEPT
#echo 1 > /proc/sys/net/ipv4/ip_forward

#Set up the firewall chain
$IPT -N firewall
$IPT -A firewall -j LOG --log-level info --log-prefix "Firewall:"
$IPT -A firewall -j DROP

#Accept ourselves
$IPT -A INPUT -s 127.0.0.1/32 -d 127.0.0.1/32 -j ACCEPT
#If youre using IP Masquerading, change this IP to whatever your internl
#IP addres is and uncomment it
#$IPT -A INPUT -s 192.168.1.1/32 -d 0/0 -j ACCEPT

#Accept DNS, cause its warm and friendly
$IPT -A INPUT -p udp --source-port 53 -j ACCEPT
$IPT -A INPUT -p tcp --source-port 113 -j ACCEPT
$IPT -A INPUT -p tcp --destination-port 113 -j ACCEPT

#Allow ftp to send data back and forth.
$IPT -A INPUT -p tcp ! --syn --source-port 20 --destination-port 1024:65535 -j ACCEPT

#Accept SSH. Duh.
#$IPT -A INPUT -p tcp --destination-port 22 -j ACCEPT

#Send everything else ot the firewall.
$IPT -A INPUT -p icmp -j firewall
$IPT -A INPUT -p tcp --syn -j firewall
$IPT -A INPUT -p udp -j firewall

Very Simple Control Protocol Daemon is a daemon for home automation tasks.
VSCP protocol is a very simple and free protocol for SOHO automation tasks & friends. The protocol is so easy that everyone can grasp the idea behind it in a few minutes.
Therefore its also very easy to construct and use VSCP aware modules and components. Nodes just start up and then serve the control solution reliable and stable for ever and ever and ever.
The protocol is free and is not designed to conquer the world and every Small Office and HOme. Very Simple Control Protocol Daemon is constructed just because its fun to make tiny little things work together.
Enhancements:
- The port was changed from 1681 to the IANA registered 9598. Scripts for Digitemp support and the first version of the ODIN database were added.

TripleA is an open source clone of the popular axis and allies boardgame.
TripleA game supports network play, alternative rule sets, and is easy to customize.
Enhancements:
- A lobby to find players on board, map scaling, an odds calculator, and new maps and rulesets were added.

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.

Ladder project brings us back to the days of classic computer games. Back when computer games were written without any fancy graphics. Heck, they were written without any graphics at all!

Using only ASCII characters, ladder was an addictive game that was very popular for computers running the CPM operating system. Seeing the game, you might be very much reminded of "Donkey Kong".

Now Ladder has been rewritten in Java and can be played on most of todays computers. This version includes all the original levels and several new ones. It also comes with a level editor so that you can make your own.

Usage:

You are a lad trapped in a maze. Youre mission is to explore the dark corridors never before seen by human eyes and find hidden treasures and riches.

You control the lad by typing the direction buttons and by jumping by typing SPACE. But beware of the falling rocks called Der rocks. You must also find and grasp the treasure (shown as $) BEFORE the bonus time runs out.

A new lad will be awarded for every 10,000 points. Extra points are awarded for touching the gold statues (shown as &). You will receive the bonus time points that are left when you have finished the level.

Remember, there is more than one way to skin a cat. (Chum)

Good luck lad.

Very Strange Tunneling Tool (VSST) is a multi-protocol tunneling tool. It accepts input by TCP stream sockets and FIFOs, and can send data via TCP, POP3, and ICMP tunneling.

HOW TO COMPILE

Run the following command:

OS | COMMAND
-----------------------
linux+bsd | make
solaris | make solaris[2]
other unix| try both :-)[1]

[1]: Give me root access to your box and I will port it. Im interested in porting vstt to Solaris x86, Solaris sparc, SGI IRIX, AIX, ...

[2]: Never tested since the hardware of my Solaris box is broken.

HOW TO INSTALL

Run make install

PokerTH is a Texas Holdem Poker Engine.

PokerTH is a Single-Player Poker Game written in C++/QT4.

You can play the popular Texas Holdem Poker against up to four computer-opponents. Its available for Linux and Windows.