In some of my development and training guides, I like to use screen record and then post the videos online. It can show you rather than reading instructions,(as they say a picture says a 1000 words).
In doing so I use Ubuntu alot and find that a simple screen capture tool to use is XVidCap, this can usually be found in the repositories and can be installed.
Quick Tip:
On most of the installations, it has not worked, you press the record button and nothing happens. A solution to this is to add some different libraries, go to the Synaptic Package manger and install the libavcodec-unstripped-52 package, this should hopefully sort out the problem, also there have been reports of disabling the audio (not that I have found this feature yet)
Good luck
Okay, alot of out of the box php software packages (Wordpress, PHPBB, etc…) ask that mod_rewrite is enabled.
If you have just installed Apache through the package manager, you can quickly add the mod-rewrite module
In the terminal type this:
Once you have done this, you will need to edit your virtual host files: To do this you can edit the file by typing:
cd /etc/apache2/sites-enabled
sudo gedit 000-default
make sure that where it says: AllowOverride None
you replace with AllowOverride All
Any issues, let me know
Okay, for the three people who have asked me in the last week how to edit the JAVA_HOME variable here is the answer, oh and no it doesn’t matter if you are playing on a VM 
In Ubuntu open up a terminal window,
The folowing command will let you know if you have a JAVA_HOME variable set, and it will show its location:
If nothing appears, you need to set the variable, and then the path, to do this you type the following (and remember to set the /examplepath to your java director, most commonly found in usr/lib/
JAVA_HOME=/usr/examplepath/java
export JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin
export PATH
