Free grey matter software for linux

smf-grey is a Sendmail milter that implements the GreyList Anti SPAM technology.
This technology can significantly reduce the amount of SPAM and viruses going from zombie computers (infected Windows PC), which produce more than 80% of SPAM.
GreyList Sendmail milter has a very effective GreyList algorithm on the base of the tuple: sender IP address (C class subnet), sender envelope and recipient envelope.
Its very recommended to use the smf-grey milter combined with the smf-zombie and the smf-spf milters. Its a triple impact on SPAM and viruses, that will seriously increase the efficiency of filtration.
This milter aims to be lightweight, reliable and simple. Its written in C.
Main features:
- It has a hosts/networks whitelist;
- It has an autowhitelist;
- It can add the information header with GreyList results to scanned messages;
- It can log all milter activities through the syslog service.
Advantages:
- Small code;
- Fast work;
- Stability (production quality);
- Few system resources are required.
Enhancements:
- Whitelists auto reloading was implemented.
- Autowhitelisted records regular dumping and reloading was implemented.
- The default greylisting time period was increased.
- New TODO tasks were added.
- Cosmetic enhancements were made.

Scam-grey is a milter which filters mail originating from MS Windows hosts. Scam-grey filter provides you the ability to mitigate the flow of unwanted email from such hosts using grey listing.

How it works:
On the first delivery attempt from a Windows host, Scam-grey generates a temporary error message. Subsequent delivery attempts made after the delay period will be allowed through. Unlike standard mail servers, virus, trojan infected hosts and zombies are not designed to retry the delivery after a temporary failure.

Scam-grey pairs

the helo string
the IP address of the sending server (host)
as a record and returns a temporary failure (SMTP code 450 extended code 4.7.1) if the host is greylisted.

The record is expired if there is no connection for the matching record within the next 24 hours. Click here to see a sample of mail servers which are currently greylisted

KeyCluster is a high availability (HA) system for mission critical applications running on Solaris (Sparc and x86), Linux, and AIX.
The project guarantees service availability and data access, switching services between machines in case of software or hardware failures in a matter of seconds.
Enhancements:
- The name to was changed KeyCluster and almost all of it was rewritten.
- Built-in support for DRBD and a KeySharing kit based on a shared USB SecureKey to store services status were added.

No-relay SMTP daemon is a lightweight mail server whose sole purpose is to receive incoming messages and deliver them to local users. Its main "feature" (or non-feature, really) is to be completely unable to relay messages to adjacent servers: if an incoming message is not addressed to a local mailbox, smtpd will reject it.

Another convenient feature is its automatic grey-listing of clients that allows you to efficiently reject spammers based on their behaviour. No-relay SMTP daemon can handle incoming email traffic for an unlimited number of domains (i.e. act as a MX for these domains) without the need for any configuration (other than creation of users mailboxes).

Project ERP provides an ERP suite written in PHP inside of eGroupware.

Project ERP is a collection of modules for eGroupware, covering acounting, manufacturing, inventory, and sales orders.

It uses the infrastructure of eGroupware and allows customization easily with the eTemplates-Module.

Marauder-ah project is a 2d space fighting game.
Marauder-ah is a set of improvements over "marauder", originally written by Shawn Hargreaves in 1994.
You control a spaceship with a basic weapon, and your purpose is to kill as many people as you can.
Earning money (using piracy or trade) enables you to upgrade your ship and buy deadly weapons.
Game Rules:
Many years from now, in a distant corner of the galaxy, blah blah.
Ok. The rules are simple. Earn as much money as you can, and dont get shot.
When you start the game, you will see a little spaceship in the middle of the screen. That is you. Use the left and right arrow keys to turn, and the up arrow to fire your thrusters. Once you start moving it is not easy to stop. You will eventually coast to a halt, but if you are in a hurry you will have to turn round and fire your thrusters in the opposite direction.
If you fly around a bit, you will probably come across a planet or another hip (HINT: you can see all the planets and ships on the radar display at the top right of the screen).
There are two things to remember about planets. One is that if you fly into
them you get hurt. The other is that if you fly up close to one and then
press ENTER, you go to the shipyard.
Enhancements:
- Corrected code to compile with allegro 4.1.15 and gcc 3
- Added rest(0) to game loops to drop CPU
- Added some information to the top left of the screen
- Can repair if less than 10% damage
- Removed most of joystick support-related calls
- Removed play midi calls (BUGFIX !)
- Changed keybindings, defined in keybinds.h
- Increased bullet life (48 > 75)
- Increased treasure life (100->5000)
- Speed variation
- Laser, proton and matter can be used together
- Config file for keybindings using Zlog code
- Removed VC++-related stuff in the makefile, added mingw32
- Added commandline options parsing using Zlog code
- Added quiet option, hardconfig option, gfxmode and askgfx options
- Added mouse support (more comfortable for askgfx)
- Removed midi files from marauder.dat as theyre not used anymore
- Changed proton and matter cannon sprites so that theyre visible when used together
- Added configure script from Zlog (detects, downloads builds and installs allegro 4.1.15)
- Enemies now upgrade their weapons when possible
- Player can sell his stuff (weapons and so)
- Ships are drawn randomly at each different execution of the program (just added a rand() call)
- Changed weapon price

Instant Picture Creator is an Image Wrapper written in PHP to produce images on demand for websites. It uses filters, so you can manipulate images in every way by adding own filters. Currently it comes with two basic filters for Resizing images (Example: thumbnails) and Manipulation image colour palette. You can combine filters (like ‘Resize-square-100/Palette-grey’) and it is possible to define Shortcuts (like ‘greythumb’).

Filtered images can be cached, so it is fast and only need some more server time at the first image request.

It doesn’t need a special backend interface, you can manipulate images by a request like http://yourserver.com/picture.png?filter=thumbnail (you don’t need to do it by yourself, it will be done by the first request anyway). In this way you can integrate this mechanism very easy in running websites. You can use it only for one (or more) folder (with images) or you can you use Instant Picture Creator in general for all images on your website. Of cause you also can use it in your backends to prepare thumbnails for uploaded images, etc ...

Currently it supports GIF, PNG and JPEG image types.