Linux Is Ready

If you’ve gone to USPS.com to track and confirm delivery of a letter or package, you’ve used the U.S. Postal Service’s Product Tracking System (PTS) and probably not known it. And you might not have noticed either when USPS moved the system to open source.

Postal Service information technology officials have upgraded the 15-year-old, mainframe-based system to handle more transactions and lower the cost of operating the system.

The work to upgrade PTS is part of a larger plan to standardize on the open-source and less expensive Linux operating system, said John Byrne, manager of application development and head of USPS’ Integrated Business Solutions Centers.

The service is moving 1,300 Sun Solaris midrange servers to a Hewlett-Packard Linux environment. USPS is using Novell’s SUSE Linux on the mainframe and distributed computing platforms to forge greater interoperability between the two environments, Byrne said.

However, the mainframe story is one of migration and reuse of valuable business logic developed over 15 years, Byrne said.

“We’ve hosted [PTS] on the mainframe, and the mainframe is a proprietary environment, meaning you have to pay the software vendors a certain price to use their software,” Byrnesaid . “We wanted to take advantage of Linux and open source. We want to grow the scanned events without having to pay more software costs. So we started down the path to Linux.”

There is no doubt that free technologies, mainly open source software, are proving more popular both inside and outside the computer industry.

Behind this growing acceptance is a non-commercial movement of independent developers that are putting together the open source software that anyone can use.

Paul Allen, editor of ComputerActive magazine, said the defining feature of open source software was that the set of tools and systems were developed by enthusiasts rather than big companies.

But he added it should be treated as “free thinking rather than a free lunch” because it is not always free of charge.

Out of this movement have come fully-fledged programs, such as Open Office for e-mail, spreadsheets, word processing and presentations, and VLC for video, that were put together for free by a community of people.

“The entire source code for the software is made available to the community and anyone can modify it,” said Phil Andrews from open source software provider Red Hat.

‘Catching up’

While the core software may be free to download and install, some companies are making money from open source by offering support services. This can be in the form of a helpdesk or more technical aid to troubleshoot problems once the software is being used.

“In the same way that you would take purchase software and have a maintenance contract… we supply a support contract for open source software,” said Mr Andrews.

Despite many businesses turning to open source and its use becoming widespread, it remains relatively unknown to the masses of computer users, said Mr Allen.

He said consumers were particularly unaware of the free versions of operating systems, largely Linux, that are available. This could be because many appear in different versions that can look fragmented to those unfamiliar with them.

Beyond operating systems, many do use open source programs even if they may not know them as such.

“On the applications side, programs like Firefox and Thunderbird are immensely popular and are catching up Microsoft in some places,” said Mr Allen.

Many of the open source applications have millions of users.

For instance, statistics suggest that there are about 40 to 50 million users of Linux desktops, while Open Office has been downloaded 60 million times since October 2009.

The browser Firefox has been gaining popularity with web users and the organisation behind it claims it now has 270 million users.

There is no doubt that free technologies, mainly open source software, are proving more popular both inside and outside the computer industry.

Behind this growing acceptance is a non-commercial movement of independent developers that are putting together the open source software that anyone can use.

Paul Allen, editor of ComputerActive magazine, said the defining feature of open source software was that the set of tools and systems were developed by enthusiasts rather than big companies.

But he added it should be treated as “free thinking rather than a free lunch” because it is not always free of charge.

Out of this movement have come fully-fledged programs, such as Open Office for e-mail, spreadsheets, word processing and presentations, and VLC for video, that were put together for free by a community of people.

“The entire source code for the software is made available to the community and anyone can modify it,” said Phil Andrews from open source software provider Red Hat.

‘Catching up’

While the core software may be free to download and install, some companies are making money from open source by offering support services. This can be in the form of a helpdesk or more technical aid to troubleshoot problems once the software is being used.

“In the same way that you would take purchase software and have a maintenance contract… we supply a support contract for open source software,” said Mr Andrews.

Despite many businesses turning to open source and its use becoming widespread, it remains relatively unknown to the masses of computer users, said Mr Allen.

He said consumers were particularly unaware of the free versions of operating systems, largely Linux, that are available. This could be because many appear in different versions that can look fragmented to those unfamiliar with them.

Beyond operating systems, many do use open source programs even if they may not know them as such.

“On the applications side, programs like Firefox and Thunderbird are immensely popular and are catching up Microsoft in some places,” said Mr Allen.

Many of the open source applications have millions of users.

For instance, statistics suggest that there are about 40 to 50 million users of Linux desktops, while Open Office has been downloaded 60 million times since October 2009.

The browser Firefox has been gaining popularity with web users and the organisation behind it claims it now has 270 million users.

A Californian hospital is using Linux virtual desktops to provide patients with email and web access.

Glendale Adventist Medical Center (GAMC) has installed thin clients running Linux virtual desktops in 65 patient rooms in its new West Tower.

“Just as easily as the hospital provides patients with TVs in rooms, now we provide personal computing,” said Roger Pruyne, senior programmer/analyst and project manager for the GAMC Patient Computing project.

The system combines NoMachine’s NX remote access and virtualisation software, SUSE Linux Enterprise Desktop, and an IBM System x3650 server.

GAMC estimates that this approach saves 98 percent of the cost that would have been involved if conventional PCs had been selected.

Virtualisation keeps the cost down while maintaining privacy and security. No data is stored on the thin clients, so there’s no need to wipe those devices when a patient is discharged.

“NX’s unique compression and caching features also provide a seamless remote connection from the thin client to the server, giving the patients the feel of being on their own personal computer, while reducing power consumption and support costs,” said Sarah Dryell, business development manager at NoMachine.

GAMC is planning to extend its use of virtual desktops to employees and clinicians.

“Considering our patients’ positive feedback, we’re looking to expand the project to other Adventist Health hospital locations,” added Pruyne.

Just over a month ago, iTWire reported on another institutional use of Linux for ‘guests’ – the PrisonPC system recently installed at the Alexander Maconochie Centre correctional facility in Australia. PrisonPC uses thick clients with centralised storage. Ubuntu Linux was selected for that product.