Chapter 8: Setting Up a Game Server with BZFlag
While the number of popular commercial computer games for Microsoft Windows still far outstrips those available for Linux, as a gaming server, Linux is an extremely popular platform. Linux server software is available for hundreds of commercial games, allowing your Linux server to bring together dozens or hundreds of online gamers at a time.
From the pure, open source standpoint, there are some fun games that have completely free client and server software that you can set up and play against others on your LAN or over the Internet. These include board games (such as Go and Atlantik), strategy games (such as freeciv), and battle games (such as BZFlag).
To try your hand at setting up and playing from your own gaming server, I describe how to configure Battle Zone capture the Flag (BZFlag). BZFlag is a fun 3D tank battle game, designed to be played against others over a network. After you set up a BZFlag server, you can have players battle each other over the network using clients on other Linux, BSD, Mac OS X, or Windows systems.
Figure 8-1 illustrates the BZFlag Start Server screen and tanks that might appear on BZFlag clients that run on Linux, Mac OS X, Windows, and BSD systems.
Like many open source projects, BZFlag was begun by a single person as a small idea that just took off. Chris Schoeneman started what became BZFlag as part of his graduate studies in computer graphics at Cornell University in 1993. The project started as a demo program to spin a 3D model with a mouse.
When a friend suggested that Schoeneman make the demo into a game, he created tank models, added the ability to shoot the tanks, and made it so the game could be played against other players on a LAN. The game grew in popularity at Cornell and, over time, features were added such as flags, team bases, and Capture-the-flag–style game play. With the addition of capture-the-flag, the game's name changed from bz to BZFlag.
More than a dozen years later, BZFlag (BZFlag.org/) has a thriving community, with more than 3,000 registered users and 34,000 articles at the BZFlag forums (my.BZFlag.org/bb). At any given time, there are dozens of public BZFlag servers running and waiting for you to join in. New worlds and new features are constantly being created and made available for BZFlag.
The current BZFlag maintainer is Tim Riker. Many other contributors to the project are listed as well. These include Daniel Léonard, Jeremiah â
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide