Category: Computers

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Enable Network Printer Sharing with Ubuntu Linux computers

Having a shared printer within a computer network is a nice thing to have. Since all computers within the network can access a remote printer to print documents. Maintenance cost is much more cheaper and easier since you only need to service only a single printer within a network.

Here’s how to enable Printer sharing with Ubuntu (or other Linux based computers) through GNOME :

At the computer with the printer

Administer Printers Ubuntu
  • First at the Desktop, go to System->Administration->Printing. A dialog will appear
  • Go to Server Settings, and check the “Share published printers connected to this system” checkbox

    Administer Printers Ubuntu

  • You may, optionally select “Allow users to cancel any job”
  • Click Apply, and close the dialog

At the client computer(s)

Network Printer Sharing Ubuntu, using Samba

  • From the Desktop, go to System->Administration->Printing. A dialog will appear
  • Check “Show shared printers from other systems” checkbox. Click Apply
  • Repeat the first step, this time click “Refresh Printer Queues” button. You shall see the list of shared printer from the server computer
  • Repeat this on other computers on the network to share the printer

That is all to it! Now you can print documents across your computer network.

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Awesome Web apps integration with Mozilla Prism (Google, Facebook)

Being a relatively newcomer with Desktop + Web apps application, I tried to experiment with Mozilla Prism in a newly installed Ubuntu Hardy on my sister’s laptop.

At first glance, Mozilla Prism really hits the spot. as it allows seamless integration of various web application within your computer. Prism made it easier for me to access various web application from my desktop with relative ease, as if they were local applications.

Screenshots of Prism in action

Google Reader

Google Prism

Google Docs

Google Docs in Prism

Google Facebook

Google Docs in Prism

Prism enhances web experience greatly by integrating web application into desktop environment.

How to Install Prism
From desktop, go to System->Administration->Synaptic Package Manager, and search prism. Install “prism” package together with its associated web application (called “bundles”)

Installing Mozilla Prism

Facebook and Google Groups Integrated inside Applications Menu

Installing Mozilla Prism
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How to Synchronize Current Time in Ubuntu

As some of you might aware, the time kept by computers (or other timepieces such as clocks) are not accurate as there are various factor that causes time drift. Quartz inaccuracy, temperature, quality of the equipment, power from battery, mechanical wear and tear and so on.

These minor drift while might not seems to be significant, it will give you inaccurate measure of time. This might affect your other productivity work as the time kept by your computer is not accurate to the last second. Plus, certain application such as Stellarium and GPredict depends heavily on the time kept on your computer to give accurate result.

How to get accurate time in Ubuntu
You can ensure your computer gets the most accurate time by synchronizing it with an NTP server .

To do this you need to right click the Tray Clock in Ubuntu, and selects “Adjust Date & Time”.

Adjust Date and Time

A dialog will appear, press “Unlock” and enter your Administrator password to enable the menus.

Adjust Date and Time

Answer “yes” to install NTP packages. If your computer is connected to the internet it will be automatically synchronized with an NTP server.

Bonus :You can select the nearest NTP server to your place for faster synchronization, as shown on the picture. The nearest NTP server to Malaysia is maintained by SIRIM – mst.sirim.my.

NTP Time Servers in Ubuntu

Synchronize Time using command-line
Alternatively you can synchronize time by using ntpdate command-line tool, which is covered previously in this blog.

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Ubuntu Mobile is going to be announced in June !

Good news everyone, Canonical is going to announce the latest edition of Ubuntu line up, Ubuntu Mobile next month. Ubuntu Mobile is an Ubuntu edition which runs on a new type of mobile computers called Mobile Internet Devices.

Some features of Ubuntu Mobile device are :

  • GPS
  • Digital TV
  • Emails, Instant Messaging, Web Browsing
  • Multimedia Player
  • VoIP applications
  • Integration with various social webapps (MySpace, Youtube, Facebook)
ubuntu logo mypapit.net

However it is stll remain to be seen whether Ubuntu Mobile going to released with its own SDK. I’ll be really excited if they release Ubuntu Mobile in my place.

Source : Underexposed – CNET News.com

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The friendly Old Battery Warning in Ubuntu

Ubuntu is friendly enough to provide a nice and friendly warning to me about the status of the laptop battery that I currently use. With Microsoft Windows (at least Windows XP), the laptop simply dies when the battery looses its juice.

old and broken battery warning

Its nice to have this sort of reminder when you really need to change the battery.