Canonical Voices

Posts tagged with 'linux'

Prakash

The team behind the Samba file, print, and authentication server suite for Microsoft Windows clients announced the release of Samba version 4 yesterday. This version includes significant new capabilities that offer an open source replacement for many enterprise infrastructure roles currently delivered exclusively by Microsoft software, including acting as a domain controller, providing SMB2.1 protocol support, delivering clustering, and offering a virtual filesystem (VFS) interface. It comes with Coverity security certification and easy upgrade scripts. The release notes include details of all changes.

Notably, this includes the first open source implementation of Microsoft’s Active Directory protocols; Samba previously only offered Windows NT domain controller functions. According to the press release, “Samba 4.0 provides everything needed to serve as an Active Directory Compatible Domain Controller for all versions of Microsoft Windows clients currently supported by Microsoft, including the recently released Windows 8.”

Samba 4 can join existing Active Directory domains and provides all necessary function to host a domain that can be joined by Microsoft Active Directory servers. It provides all the services needed by Microsoft Exchange, as well as opening up the possibility of fully open source alternatives to Exchange such as the OpenChange project.

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Prakash

While ARM is gaining a lot of momentum, the challenge with ARM until now was that every architecture is very different from different vendors and requires a separate kernel and entire OS stack.

With Linux Kernel 3.7, this has changed for the better.

ARM’s problem was that, unlike the x86 architecture, where one Linux kernel could run on almost any PC or server, almost every ARM system required its own customized Linux kernel. Now with 3.7, ARM architectures can use one single vanilla Linux kernel while keeping their special device sauce in device trees.

The end result is that ARM developers will be able to boot and run Linux on their devices and then worry about getting all the extras to work. This will save them, and the Linux kernel developers, a great deal of time and trouble.

Just as good for those ARM architects and programmers who are working on high-end, 64-bit ARM systems, Linux now supports 64-bit ARM processors. 64-bit ARM CPUs won’t ship until in commercial quantities until 2013. When they do arrive though programmers eager to try 64-bit ARM processors on servers will have Linux ready for them.

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Prakash

From PC World.

Ubuntu is a widely popular open-source Linux distribution with eight years of maturity under its belt, and more than 20 million users. Of the roughly 5 percent of desktop OSs accounted for by Linux, at least one survey suggests that about half are Ubuntu. (Windows, meanwhile, accounts for about 84 percent.)

The timing of this latest Ubuntu release couldn’t be better for Windows users faced with the paradigm-busting Windows 8 and the big decision of whether to take the plunge.

Initial uptake of Windows 8 has been unenthusiastic, according to reports, and a full 80 percent of businesses will never adopt it, Gartner predicts. As a result, Microsoft’s big gamble may be desktop Linux’s big opportunity.

So, now that Canonical has thrown down the gauntlet, let’s take a closer look at Ubuntu 12.10 to see how it compares with Windows 8 from a business user’s perspective.

 

Windows 8 Pro (x86) Ubuntu 12.10
License fee $39 to $69 upgrade Free
CPU architectures supported x86, x86-64 x86, x86-64, ARM, PPC
Minimum RAM 1GB, 2GB 512MB
Minimum hard-disk space 20GB 5GB
Concurrent multiuser support No Yes
Workspaces One Two or more
Virtualization Hyper-V KVM
License Not applicable GPL Open Source: Main, Non-GPL: Restricted
Productivity software included None LibreOffice
Graphics tools included No Yes

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Prakash

Over €10 million (approximately £8 million or $12.8 million) has been saved by the city of Munich, thanks to its development and use of the city’s own Linux platform. The calculation of savings follows a question by the city council’s independent Free Voters (Freie Wähler) group,

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Urge your city to save money from taxes, its your hard earned money.

 

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Prakash

After installing Ubuntu 12.10, the first thing I wanted to do, was to disable reverse scrolling – you scroll down and it scrolls up! This is also called natural scrolling by Apple. Don’t know what is natural about it :) but may be natural for Apple users.

Open the terminal and edit this file using any editor and edit the .Xmodmap in your home directory for example:

 gedit .Xmodmap

Here you would seet his:

pointer = 1 2 3 5 4  6 7 8 9 10 11 12

You would note that in the sequence of numbers 5 and 4 are interchanged. Change it back to the sequence..

pointer = 1 2 3 4 5 6 7 8 9 10 11 12

Now you are done, logging out and in should do the job.

If you have Ubuntu Tweak installed. Just go to Tweaks-Miscellaneous and you would see an option to toggle Natural Scrolling on/off.

 

 

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Prakash

Ubuntu 12.10 is here. With this release there is no CD image only DVD image which is 800 MB in size. Torrent is preferred method for me.

Ubuntu 12.10
Torrent Links Direct Downloads
Ubuntu Desktop 64-Bit Edition Torrent Main Server
Ubuntu Desktop 32-Bit Edition Torrent Main Server
Ubuntu Server Edition 64-Bit Torrent Main Server
Ubuntu Server Edition 32-Bit Torrent Main Server

Have fun :)

Ubuntu Unleashed 2012 Edition: Covering 11.10 and 12.04 (7th Edition) (7th Edition)

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Prakash

From the article:

 

“You’d be a fool to use anything but Linux.” :)

Most Linux people know that Google uses Linux on its desktops as well as its servers. Some know that Ubuntu Linux is Google’s desktop of choice and that it’s called Goobuntu. But almost no one outside of Google knew exactly what was in it or what roles Ubuntu Linux plays on Google’s campus, until now.

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Prakash

Apple — one of the most closed companies in the world — is actually using lot of open source and software. Licensing information in the Apple iPhone proves this. Go to the legal section on the iPhone and it cites Linux Kernel developer Ted Ts’o for his code. Linux Suse is there, too.

Zemlin made the point that Apple has hundreds of billions of dollars in cash, which is enough to buy HP, Intel and Dell combined. Instead, Apple purchased the copyright to the Common Unix Printing System (CUPS), which now is on every Linux and Apple system.

The list of companies using Linux does not stop at Apple. Microsoft, which once equated open source with communism, is now a top contributor to the Linux Kernel project. And VMware is getting on the bandwagon.

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Prakash

OpenStack has the potential to become as widely used in cloud computing as Linux in servers, according to Rackspace’s chief executive Lanham Napier.

Napier noted that OpenStack has more code contributors than Linux did when it started: it had 206 code contributors by its 84th week, whereas Linux took 615 weeks to get to that level. Similarly, OpenStack had 166 companies adding to it by its 84th week, whereas Linux reached 180 companies by its 828th week.

OpenStack is already well on the way to building that community, given the broad adoption the technology has seen since its launch two years ago. At the moment, more than 100 companies have put OpenStack into production, including AT&T, Korea Telecom, the San Diego Supercomputer Centre, HP and the US Department of Energy’s Argonne National Laboratory.

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Prakash

The Chinese, who also developed the Loongson MIPS CPU, were looking to order at least ten million graphics processors. The problem is that the GeForce / Quadro driver from NVIDIA is only available for Linux x86 and x86_64 architectures, not MIPS or even ARM (only the Tegra driver is for ARMv7). NVIDIA refused to release the source-code to their high-performance feature-complete cross-platform driver to the Chinese, and it would cost them millions of dollars to port the code-base, so they went to AMD for their GPU order.

The order was at least for ten million GPUs, which given the current low-end parts, would value the order at least 250 to 350 million dollars (USD).

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A few days back, Linux founder Linus Torvalds was unhappy with NVidia because of their Linux drivers are binary only. In the talk he called NVIDIA “the single worst company we have ever dealt with” and he said a few other nice words too. :) Hope NVidia open sources it drivers.

 

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Prakash

After Dell and HP, now MiTAC has announced that they are doing an ARM server.

  • 1.6 GHz
  • 4 Cores
  • Ubuntu 12.04
  • 4U Rack server with 64 CPU and 256 Cores
  • 32-Bit processor

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Prakash

In the battle of the desktop operating systems (OS), there are only three dominant players left – Windows, Mac and Linux. At some point, Windows was cast as the platform for the common man, Mac as the one for the artist, and Linux as the geek’s playground.

Linux found favour in powering servers, supercomputers, large businesses and even stock exchanges. And Google even used it as the platform to build its popular Android mobile operating system. But in the desktop and notebook space, it still failed to gain traction.

There’s an image associated with Linux that can be frightening for a normal user, invoking pictures of command lines and terminal windows. But over the past 20 years, some massive steps have been taken to make the OS more accessible.

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The same was also published on Economic Times.

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Prakash

Ubuntu 12.04 LTS is here. This is the first time Ubuntu 12.04 LTS (Desktop) will be supported for 5 years.

Torrent is preferred method for me.

Ubuntu 12.04 LTS
Torrent Links Direct Downloads
Ubuntu Desktop 64-Bit Edition Torrent Main Server
Ubuntu Desktop 32-Bit Edition Torrent Main Server
Ubuntu Server Edition 64-Bit Torrent Main Server
Ubuntu Server Edition 32-Bit Torrent Main Server

Other Links:

CD images + Alternative CD.

Ubuntu Core – Just 35 MB  of pure Ubuntu.

Have fun :)

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Prakash

The recently acquired Instagram is powered by Ubuntu! Instagram was recently acquired by Facebook for $1 Billion. Its a 13 people company almost all of them in their 20s and just 2 years old.

It is not just Ubuntu, the site is completely built on Open Source: Apache Solr, PostgreSQL, Redis and Django.

Read more on the technology underneath.

 

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Prakash

Linux is today powering Android phones, TVs, set-top boxes, enterprise data centers, cloud and supercomputers. Here are some stats.

The Linux Foundation has released its  Annual Linux Development Report, here are the excerpts:

 

  • More than 7,800 developers from almost 800 different companies have contributed to the Linux kernel since tracking began in 2005. Just since the last report, more than 1,000 developers representing nearly 200 companies have contributed to the kernel.
  • Seventy-five percent of all kernel development is done by developers who are being paid for their work. Long believed to be a basement community of developers, the Linux community is a worldwide, professional network of the best software talent in the world. This army of developers together builds the foundation from which innovations such as Android, cloud computing, KVM, Xen, and more are born and succeed.
  • The top 10 organizations sponsoring Linux kernel development since the last report (or Linux kernel 2.6.36) are Red Hat, Intel, Novell, IBM, Texas Instruments, Broadcom, Nokia, Samsung, Oracle and Google.[1] Mobile and embedded companies have been increasing their participation in recent years, not only adding more hardware support to the kernel but also taking responsibility for the advancement of core kernel areas.
  • For the first time, Microsoft appears on list of companies that are contributing to the Linux kernel. Ranking at number 17, the company that once called Linux a “cancer,” today is working within the collaborative development model to support its virtualization efforts and its customers. Because Linux has reached a state of ubiquity, in which both the enterprise and mobile computing markets are relying on the operating system, Microsoft is clearly working to adapt.
  • The rate of change since the last report is high and increasing, with between 8,000 and 12,000 patches going into each recent kernel release every two to three months. That’s nearly 6 new patches per hour since the last release of this report.

Read the full report.

 

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Prakash

Android so far has been maintaining its separate kernel from the mainline Linux kernel.  The android kernel forked out of the mainline because of differences in accepting the changes which the android developers were working on.

The good news is now with Kernel 3.3 the android specific changes are accepted in the mainline kernel.

Ubuntu 12.04 scheduled to release next month, will be on Linux kernel 3.2, expect 12.10 to benefit from this.

 

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Prakash

Ubuntu Cloud Day is coming to Bangalore on April 4th 2012.

If you are interested you can register here. http://ubuntucloudday.in

Here is a discount code to get you 20 percent off. Have Fun :)

LNKD20

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Prakash

Epson L200 is a low cost multi-function device which is good for bulk printing. It offers Printing/Scanning and Copying. A similar model L100 is a stand along printer.

First this model works on Ubuntu 11.04 with these instructions. However on Ubuntu 11.10 you require some tweaking.

First go to Epson Linux Download Center.

These instructions work for L100 and L200.

Search for N11, L200 is not yet officially supported hence you search for similar model. The OS drop down below should show Linux.

Download the printer driver. For 32-bit systems the file is

epson-inkjet-printer-n10-nx127_1.0.1-1lsb3.2_i386.deb

It will require some LSB files which it should download on its own.

Now reboot your system and plug on USB, your printer will get auto-detected and it will install the driver. You will not be able to print yet.

On your browser, type localhost:631  this will bring up cups front end where you need to change a few things.

Click on printers tab on the right, select L200 under Queue Name, you will see two drop down menus.

Select Maintenance in the first one and Modify Printer, Now select the printer and say continue.

It would show Make Generic and Current Driver Generic ESC/P Dot Matrix

Click on Select Another Make/Manufacturer

Select Epson and Click on Continue

Now Select Epson Stylus N10 N11 Series

Now click on the Link below that says Modify Printer

Now if you print a test page you should see it printed.

To install the scanner, This is for L200.

Now  go back to Epson Linux Download Center.

Now search for L200

The OS drop down below should show Linux.

Now accept and download these files for 32-bit systems

iscan_2.28.1-3.ltdl7_i386.deb

iscan-data_1.14.0-1_all.deb

Install them and now you can scan from Any application like SimpleScan or use the ImageScan application installed.

My first comments on this printer for Linux/Ubuntu users.

This printer was a pain to install on Ubuntu and to print in the best photo quality you need Windows, on Ubuntu I was able to print in colour but not get the best quality.

Secondly to setup the printer you need Windows, to enter the ink tank codes, you will need this everytime you re-fill the tanks.I have seen some hacks around this on Youtube, yet to try it and those hacks are also Windows only :)

If you have Linux only, you won’t be able to setup this printer and even if you have Windows, its a pain to setup on Linux.

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Prakash

“Good artists borrow, great artists steal!” — Pablo Picasso said it. So did T.S. Eliot. And, more recently, Steve Jobs. Let’s face it: If something makes sense and succeeds, it gets imitated.

Though Windows 8 and Linux distributions differ greatly from each other in design, ideology and — last but not least — their primary audience, they’re all built on the same basic principles of OS design so there’s bound to be some overlap. And while Microsoft has long been accused of stealing from the open source community, according to some Linux fans, it’s getting to the point where Microsoft simply appropriates good Linux features.

I have noticed many features in Windows, which came into Linux first and Windows users don’t even know them..

Read more.

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Prakash

How a chef made the move to Linux

Chef Yash Amin, is our guest blogger today. He is greatest chef I have known and has moved to Ubuntu, here is his experience.

Why i made the move from being a slave to windows to open source and Linux.

For years since I’ve been using computers, windows has been the mainstay of things and although I had heard about Linux, was hesistant to try it because for a non-technical person like me. I dabble a lot with computers, but at the end of the day I’m a chef and the maximum that I’m able to do with a laptop is add more RAM. (in terms of hardware). The biggest reason, not to change was quite simple really, noone likes too much of a change in lifestyle / clothes or even their OS.
But with the hundreds upon hundreds of security patches, updates, slow working systems being tied down to paying for new software, was gettting to be too much. After i have switched to Ubuntu/Linux working on the laptop just seems easier, it boots ups faster, the updates are seamless and take a few minutes at the most. it has a  graphic user interface (GUI) so theres easy to click on icons for everything to do and best of all, my favourite open source game nethack is now made for Linux too, so I can play with it as much as I can.
even though 12 years after first starting to play nethack, have still to crack the game and ascend as a demi god!!
Switch to Linux, now and save yourselves endless frustration, virus updates, security patches upon more and more and all in one package. Just download and your good to go.

after so much tech or not so much tech talk, i need to talk something about food.

The art of making a great tasting chocolate mousse

This assumes a few things and is not a DIY for dummies chocolate mousse recipe, but rather aimed at a few people who are passionate about dark chocolate. Dark chocolate is a sinful thing almost and most people will enjoy it as a guilty pleasure. A well made mousse takes that to even more dizzying heights and can be really delicious and smooth and creamy. Enough talking, now lets walk the talk.

For a family sized portion or if you are particularly greedy this is how much you would need.

Dark chocolate broken into small pieces- 200 gms(if you can get one with 50 percent+ cocoa solids then even better). Even Cadbury’s make one called old gold. If not then use Cadbury’s dairy milk and add about 30 gms of the darkest cocoa powder that you can find.

  • Butter – 30 gms
  • Eggs – 3 numbers
  • Sugar- between 60-100 gms (if you want it more or less sweet)
  • Cream – 250 ml
  • Alcohol-(rum/ whisky/ or a liqueur (baileys, kahlua, cointreau or similar)- optional, but adds another hint of wickedness to the final product.- about 20 ml

Process

  • Beat the eggs and sugar over a double boiler (pot with hot water over a low heat). The water should not touch the eggs but just be lightly simmering otherwise you will get sweet scrambled eggs. The consistency to try and achieve is very very fluffy and creamy and when stirred leaves a trail or when poured is ribbony.
  • Melt the chocolate and butter together, just melted about 40 seconds in a microwave is generally enough. This should be done while the eggs are getting beaten. If you are using milk chocolate then add cocoa after the mix is well melted. Add in the alcohol if you like and mix well.
  • Whisk the cream till its almost double in volume and forms soft peaks. Keep chilled. Do not over beat otherwise will split and turn into butter.
  • Mix in the chocolate mixture gently into the eggs and sugar mix.
  • Take of the heat and allow to cool down slightly.
  • Fold in the whipped cream. ie. gently mix it in trying not to lose all the air which has been incorporated while whisking. Taste the mix by dipping in finger and licking clean. Yes this essential quality control measure ;)
  • Put into individual glass bowls and refrigerate until set – about 2-3 hours. It can even be frozen quite successfully and eaten frozen like a rich ice cream or used a filling for a cake/ tart.
  • Enjoy your chocolate mousse and Linux with family and friendsSans Sucre Mousse Mix - Chocolate.

For more recipes see Yash Amin’s blog.

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