Extreme Hacking

Xorg High CPU usage on Kubuntu 11.04

2011-09-04T07:54:00.000-07:00

Xorg is consuming the CPU all the time with very high usage regardless if the desktop effects is working or not.I couldn't found any solution, it seems its a bug in the Driver.

$ glxinfo | grep rend
direct rendering: Yes
OpenGL renderer string: Mesa DRI Intel(R) 965GM GEM 20100330 DEVELOPMENT

After login I restarted "X" server and then the CPU usage was low, just a work around until finding a suitable solution.

Virtual Private Server

2008-09-18T15:54:00.000-07:00

I haven't add any posts from a long time to my blog and its time to post about something that really drove me to talk about.

Tektonic, a great VPS provider, offers a variety of VPS plans that fit everybody in unbelievable prices.
What I want to talk about their support, I had a lot of problems configuring some services on my server others related to securing my VPS, they helped me a lot and gave advices through their live support (24/7) or by email at zero price.

Also about their sales management, I faced some problems with my credit card, this problem from was the bank and it took along time to solve it so the renewing date has expired even the 7 days grace period and now my VPS should be terminated, I talked to Tektonic's sales and they didn't hesitate to give me another week as a grace period, and now I payed my subscription and I'm happy.

I'm using their service over a year and I'm planning to build a cluster on their servers.

You must try them!

http://www.tektonic.net

GNU or Linux

2007-05-07T06:33:00.000-07:00

As we all know Linux was created by Linus Torvalds in early 90's and it is just a kernel that allocates computer resources and manages it, it is the job of the kernel (the core of any operating system).
But the kernel Linux has offered more than that, it has many services, utility programs and more features built inside the kernel (Monolithic Kernel).

Now we got an operating system called "Linux" for a long time we believe in this but after a while Mr Richard Stallman (the creator of Open Source or Free software) told us a fact; that the OS we are talking about isn't "Linux" but its called "GNU" and the GNU OS is using the kernel "Linux" so he said that we have to call it "GNU/Linux"; thats why he is revising the GPL to produce version 3.

I'm wondering, later could we see the GNU OS has its own kernel, and Linux is engaged in other project so we'll have two separate OS's?
If that didn't happen shall we call it GNU/Linux or just Linux? I mean does this issue deserve to change our mind for it?

Your opinions are welcomed.

Usefull Java Links

2007-03-03T10:35:00.000-08:00

Egyptian Java User Group
Java Tips
Sun Java Tutorials
Java Programming Forum

OpenGL inside NetBeans

2007-03-03T09:37:00.000-08:00

To setup your environment to use OpenGL library with Java in the NetBeans IDE, there many projects that supports many platforms for this.
Here I'll use a project called "JOGL".

First, download JOGL for your target platform then extract the downloaded file.

1- Navigate to the "lib" sub-folder in side the extracted folder.
2- Copy all files to ${JAVA_HOME}/lib, ex: ${JAVA_HOME}=/usr/lib/jdk1.6.0

Now the library is ready to use but we need to set it for our project in NetBeans:

3- Open NetBeans, right click on the desired project and select "Properties"
4- Navigate to "Library" then select "Add a Jar Folder", goto ${JAVA_HOME}/lib then select the jar files that we have paste there (jogl.jar, gluegen-rt.jar)

Everything has been done and now you can start writing your OpenGL application.

Welcome

2006-11-28T07:19:00.000-08:00

I'm studying computer science and tremendously I enjoy working on my own projects and hacking systems. please check this to understand the real meaning of hacking

I'm a winner of Think Quest Africa and iEARN

Right now I'm developing open source software on Source Forge.

I would like to thank ridiculous_fish; a software engineer at Apple because I've learned a lot of Hi-Tech things from him and he was always patient with me :)
Actually his blog inspired me to start mine and he is one of the smartest people I have ever met; its the same opinion of his coworkers too.

More hacks are on their way to here!