CentOS Linux install and configure NTP to synchronize the system clock

Saturday, 07 November 2009 12:12

Q. How do I install and configure NTP under CentOS Linux 5 server to synchronize the system clock?

A. You can easily install NTP (Network Time Protocol, a means of transmitting time signals over a computer network) using yum command under Redhat or CentOS/Fedora core Linux.

Procedure

# yum install ntp

Turn on service

# chkconfig ntpd on

Synchronize the system clock with 0.pool.ntp.org server:

# ntpdate pool.ntp.org

Start the NTP Service:

# /etc/init.d/ntpd start

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How to Install Django on CentOS 5.x

Tuesday, 03 November 2009 21:39

Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.

Developed four years ago by a fast-moving online-news operation, Django was designed to handle two challenges: the intensive deadlines of a newsroom and the stringent requirements of the experienced Web developers who wrote it. It lets you build high-performing, elegant Web applications quickly.

Ubuntu 9.10 – Karmic Koala Released

Monday, 02 November 2009 17:07

Ubuntu 9.10, codenamed Karmic Koala, has been officially released. This version introduces Canonical’s new Ubuntu One synchronization service and a number of other compelling improvements.

Karmic-Koala

The Ubuntu Linux distribution has received a major update today. The new version, Ubuntu 9.10, will introduce several significant new features and will deliver the latest version of the GNOME desktop environment and other applications.

This is the eleventh release of Ubuntu since the project’s inception five years ago. The distribution has achieved an unprecedented level of popularity in the Linux desktop ecosystem and has attracted a considerable audience. Canonical, the company behind Ubuntu, touts the new release as its best yet and says that the latest improvements will take the Ubuntu user experience to the next level.

Ubuntu 9.10, codenamed Karmic Koala, is the first release to include Ubuntu One, Canonical’s new Web synchronization service. We first looked at Ubuntu One earlier this year during the beta testing stage. The service has gained several new features, including support for synchronizing contacts from the Evolution mail application and notes from Tomboy. Users can activate the Ubuntu One service by launching it from the Applications menu in the GNOME panel.

The new version of Ubuntu also offers an improved startup experience with new artwork and significantly improved boot performance. There are minor usability improvements throughout the entire distribution thanks to the Papercuts project, an initiative launched by Canonical to address user interface weaknesses in GNOME and other upstream projects. Ubuntu 9.10 has a new framework for programmers called Quickly that will automatically generate code templates to help get application development up and running faster.

GNOME 2.28, the latest version of the GNOME desktop environment, brings some nice enhancements to Ubuntu 9.10. This is the first version of Ubuntu to include GNOME’s Empathy instant messaging client and overhauled audio preferences tool. Empathy has support for voice and video chat, Adium themes, and a number of other features.

Other important upstream software shipped with Ubuntu 9.10 includes version 2.6.31 of the Linux kernel and Firefox 3.5, which adds new features like private browsing mode and support for the HTML 5 video element.

"Ubuntu 9.10 gives users more reasons than ever to seriously consider Linux at a time when many are thinking again about their operating system options. We are delivering a platform for users interested in an easy-to-use, great-looking, web-friendly operating system," said Canonical COO Jane Silber in a statement. "A faster, more beautiful boot and login sequence, file and contact synchronisation through online services and great experiences on the most popular notebook, desktop and netbook models continue to drive Ubuntu into the mainstream of computing choices."

The Ubuntu development community has also released updated versions of the Ubuntu server and netbook editions along with a number of other variants such as KDE-based Kubuntu. For more details, check out the feature tour and official release notes. Users can download the new version from the Ubuntu website.

BumpTop 3D MultiTouch

Monday, 02 November 2009 09:49

Here's a cool video on the new "3D Desktop" applications that have been in development recently. Really shows the direction desktop computing is going. Keep in mind, Apples tablet is due for release (apparently) next year, so It will be interesting if Apple take on some of the features displayed here, or produce their own.

Google Maps offer real time traffic reports

Tuesday, 15 September 2009 10:37

THE creators of Google Maps have taken the technology further down the information superhighway to launch a feature that allows Australian commuters to view up-to-date traffic flow information.

The feature, which is displayed in the Google Maps format, is available in the capital cities of Sydney, Melbourne and Brisbane, as well as Wollongong, the NSW Central Coast, Geelong, the Sunshine Coast and the Gold Coast.

Traffic information about motorways, as well as major and minor arterial routes, are displayed in the feature.

Colours overlaid on the Google Maps roads correspond to the speed of traffic, with green meaning "free sailing", yellow "medium congestion", red "heavy congestion" and black refers to "a parking lot".

Also available on mobile phones, passengers can check it out while commuting to suggest real time route changes based on the data.

Google product manager Andrew Foster says the information will be updated every few minutes.

"We know Google Maps is already an essential tool for Australians as they plan trips and the mobile version is being used more and more to help people when they're out and about," Mr Foster said.

The traffic information on Google Maps comes from data provider Intelematics Australia and is sourced from data from other motorists.

This means motorists provide information on current traffic conditions by setting their mobile phone up to share anonymous data.

But it's actually less time-consuming than it sounds.

All motorists have to do is set their mobile devices to have Google Maps for mobile running, GPS enabled and the "My Location" feature turned on.

This will then send anonymous bits of information back to Google about how fast the device is moving on that particular road.

When combined with the data from other similarly-enabled devices, this helps Google Maps create a graph on how traffic conditions are in that area.