In the last few years the functionality cost of running Linux operating system shrunk. Good hardware support is one of the last things Linux is lacking when compared to other operating systems. That isn't really Linux community's fault. The hardware manufacturers are to blame for not supporting their own hardware on operating systems other than the proprietary ones. The Linux community developers are actually doing miracles with hardware support and I thank them on doing such a great work. Web cam support was once blind spot on Linux supported hardware list. But today we have Video4Linux video capture framework supported by UVC and GSPCA web cam drivers and most web cams are working happily on our Linux PCs.
It can be very confusing for someone who have just installed Ubuntu to discover that his web cam is working, but that he has no control over settings like brightness, contrast, auto exposure etc. Typical proprietary operating system user would use controls provided by web-cam drivers to adjust these settings. But we're not left out in the cold because Linux community provides means to control our web cams. Let me present applications I use on my Ubuntu PC with my Logitech E3500, Logitech E2500 and many other no-name web cams to adjust their video and other settings.
In this article I'll show you how to setup Linux Apache Mysql PHP (LAMP) web development environment on Ubuntu Linux with your web site files in your home directory. This way you can easily develop for web as non-root user. If you are trying to install Linux Apache Mysql PHP on Windows, I'll point you to one of my previous articles where I have explained just that:
Apache, MySQL, PHP server on Windows
My goals for this session are to install Apache, MySQL and PHP with Xdebug module for PHP development debugging. We will setup Xdebug and use it with Netbeans, but once Xdebug is properly installed, you can debug your applications with any other application like Eclipse. The most important thing for a web developer or web programmer is to be able to easily modify his web development files without becoming root for everything he is working on. I will show you how to instruct Apache to make virtual host in your home directory. At the end of it all I will install Netbeans and create sample project to work with our new development environment. So lets get started...
Notice: Tested for Ubuntu releases up to Ubuntu 10.10 (Maverick Meerkat)
Every Linux distribution now days sets its default theme and wallpaper. That theme and wallpaper is usually login screen theme and wallpaper. What if you don't like it? You can change theme and wallpaper for your user account but login screen theme stays the same. Lets do something about it...
This is the plan. In a way GDM (Gnome Display Manager) is like every other user. It can have theme, wallpaper and programs to be run when it starts. Why not adjusting Gnome appearance properties (gnome-appearance-properties) window to start at login screen? Then we can adjust things like theme, fonts, wallpaper and everything Gnome appearance properties allows us to do. So first step is to enter this at your terminal (following code is single command):
sudo ln -s /usr/share/applications/gnome-appearance-properties.desktop /usr/share/gdm/autostart/LoginWindow/gnome-appearance-properties.desktop
Next step is to logout. Gnome appearance properties window will start together with GDM login screen and you can adjust everything as you like. The last step is to undo what we have done in the last step. So after next login enter this at your terminal to stop Gnome appearance properties window form showing its face every time you're at GDM login screen:
sudo rm /usr/share/gdm/autostart/LoginWindow/gnome-appearance-properties.desktop
Next time you need to change your login screen appearance you repeat this process. That's it. No more steps.
There are computer displays out there without any OSD buttons. No, really. I have one of those. So how do you say turn the brightness up? No problem, u have a software with buttons and sliders to control every aspect of you computer display. Collection of protocols to make such application is called Display Data Channel(DDC). On Linux PC you really have only one option, Ddccontrol application and its GUI variant named Gddcontrol...
Having GSM Internet connection and multiple Debian based PC in your local network is not every users dream situation. That's especially true if your mobile broadband service provider limits amount of data you can transfer per month for reasonable price, and everything above limit is very expensive. Besides that having flat rate Internet connection and hundred PC inside your LAN could potentially create unnecessary network congestions. Wouldn't it be nice to have some kind of apt caching proxy so we could download apt packages and updates only one time, and then distribute them inside our LAN to all of our Ubuntu or Debian PCs? Author of Apt-Cacher NG apt caching proxy came to rescue with its useful but somewhat hard to setup application. I will explain how to get things moving in 10 minutes max...