Firefox Add-ons that I cannot live without

  1. DownloadThemAll: A very nice download manager with resume and massive download support.
  2. Adblock plus: Ad blocker that makes pages load much faster by filtering ads from any websites you visit, you can also add more entries to its list of blocked items. Enjoy Surfing without ads!
  3. Mouse Gestures Redox: Do everything using the mouse! Go back, go forward, open a new tab, close a tab, move between tabs, zoom in and out & a lot more!
  4. Xmarks: Sync your bookmarks and even your passwords across different browsers, you will no more lose your bookmarks! (Note: This addon was previously named Foxmarks)
  5. Foxyproxy: Easily switch between different proxies via profiles and rules, I prefer the basic version as it contains just exactly what I need

Another cool add-on – but I can live without it 🙂 – is the cooliris add-on that allows you to explore and preview thousands of photos in a very attractive way.

All of the above addons are free! Enjoy!

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VirtualBox with USB Support on Ubuntu 8.10 Intrepid Ibex

http://www.samlesher.com/ubuntu/virtualbox-with-usb-support-on-ubuntu-810-intrepid-ibex/

There are two versions of Virtual Box:
– OSE (Open Source Edition) which is in the repos
– Closed Source Edition, or Standard, or just plain “Virtual Box”
OSE does not have USB support. There are a few other features from the closed source version that aren’t included in OSE, you can see the list here. So, if you want to have USB support in VirtualBox, you need to install closed source edition and make a change to /etc/fstab. Here are the steps:
1. Remove OSE
$ sudo apt-get autoremove virtualbox-ose
2. Add the VirtualBox repo for Intrepid Ibex. Click System > Administration > Software Sources. Click the ‘Third Party Software’ tab. Click ‘Add’ and enter:
deb http://download.virtualbox.org/virtualbox/debian intrepid non-free
Save the VirtualBox GPG key from here, then import it into Synaptic by clicking the ‘Authentication’ tab and then ‘Import Key File’.
Click the ‘Reload’ button in Synaptic to reload the repositories.
3. Install the latest virtualbox package (as of this writing it is virtualbox-2.2) by selecting it in Synaptic, or running this command from a terminal:
$ sudo apt-get install virtualbox-2.2
4. Add yourself to the vboxusers group:
$ sudo gpasswd -a YOURUSERNAME vboxusers
5. Find the devgid for ‘vboxusers’:
$ grep vboxusers /etc/group
It will return something like:
vboxusers:x:125:username
Add this line to the bottom of /etc/fstab, replace the devgid number with your devgid:
none /proc/bus/usb usbfs devgid=125,devmode=664 0 0
After you reboot you should now have USB support in VirtualBox.
Last tested on Ubuntu 9.04 Jaunty Jackalope.

Notes:

  1. This also works with version 2.1 of VirtualBox
  2. After modifying the /etc/fstab file, it’s not necessary to restart to enable the USB support in VirtualBox, you can just run “sudo mount -a”
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Latest Screenshot From My Ubuntu IBM Desktop

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How to increase AIX swap space

“lsps -a”

This will display something like:

Page Space Physical Volume Volume Group Size %Used Active Auto Type
hd6 hdisk0 rootvg 512MB 1 yes yes lv

This means that hd6 is the logical volume used for paging. To increase it, use the following command:

“extendlv hd6 10G”

This will add 10G of space to hd6, now reboot and then re-run “lsps -a” or you can simply use the “topas” command to check the paging space available.

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How to solve the error: 452 Error writing file: A file cannot be larger than the value set by ulimit

When trying to transfer a very big file (over ftp for example), you’ll receive the error above, this limit is a security limit in AIX and you can solve it by simply editing the /etc/security/limits file and increasing the “fsize” limit or simply changing it to “-1” to be unlimited, and then retry your transfer, you don’t have to restart the machine for changes to take effect.

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