Practical Technology

for practical people.

August 30, 2010
by sjvn01
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Windows and Linux: Peaceful Co-Existence With Microsoft and Novell

Novell and Microsoft are more than happy to help you bridge the gap between Linux and Windows.

Once upon a time, bridging the gap between Windows and Linux in the server room or the office was… difficult. Today, while no one’s going to call it easy, Novell and Microsoft have worked hard on ensuring interoperability doesn’t require either a Linux wizard or a Windows expert.

The two technology giants have been at this since they formed their unlikely partnership in November, 2006. Almost five years later, besides the business benefits the two companies have found in working together, Novell and Microsoft have made considerable progress in getting Linux and Windows to get along both on the server and the desktop level.

At OSCON in Portland, OR, Fabio Da Cunha, Microsoft’s senior manager with Microsoft’s Interoperability Alliances team and Frank Rego, the senior product manager in Novell’s Open Platform Solution division explained where the two companies are today with their technology partnerships.

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August 30, 2010
by sjvn01
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Getting the Most from Your 802.11n Investment

Sure, the IEEE 802.11n Wi-Fi standard, with its up to 300Mbps (Megabits per second) burst speeds, is fast enough for all but the most demanding office network jobs. And, now that the 802.11n protocol was finally been standardized late last year, you no longer need to worry about access points (AP) from one vendor failing to work with laptops containing 802.11n chipsets from other vendors. Still, as Jobs found out, all that technology can still fail when you need it the most.

More commonly, you may find that while 802.11n in theory can out-pace the 100Mbps Fast Ethernet you probably have around the office, the facts may be quite different. Unless you’ve got your network technicians to set up 802.11n correctly, you may discover that you’re not getting close to the speeds you expected.

Before I jump into what your technical staff needs to know, let me bring you up to speed a little bit about how 802.11n works.

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August 30, 2010
by sjvn01
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What does Paul Allen think he’s doing!?

For years, decades, the big companies didn’t tend to wage patent wars on each other. The reason is simple. Major patent holders don’t tend to target other major patent holders because of MAD (mutually assured destruction). Or, in other words, if you sue me, I sue you, and we can both burn potentially hundreds of millions per year in legal costs just to conduct a business fight. Well that was the case until Oracle went after Google and now Allen is suing the world.

OK, well maybe not the world, but his company, Interval Licensing, is suing AOL, Apple, eBay, Facebook, Google, Netflix, Office Depot, OfficeMax, Staples, Yahoo and YouTube for violating one or more of four patents. These patents are Patent No. 6,263,507, for “Browser for Use in Navigating a Body of Information, With Particular Application to Browsing Information Represented ;” Patent No. 6,034,652, for “Attention Manager for Occupying the Peripheral Attention of a Person in the Vicinity of a Display Device;” Patent No. 6,788,314, for “Attention Manager for Occupying the Peripheral Attention of a Person in the Vicinity of a Display Device;” and Patent No. 6,757,682, for “Alerting Users to Items of Current Interest.”

David Postman, a spokesman for Allen, said that Interval Research was a “groundbreaking contributor” to the development of the commercial Internet and that the patents are fundamental to the ways leading e-commerce and search companies continue to operate.” I say this is nonsense.

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August 30, 2010
by sjvn01
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VMware should buy Novell

Novell’s history has been full of ups and downs. Once, with NetWare, it was the networking operating system powerhouse. Then they tried to be a consulting company. More recently, Novell has been both a Linux company and a friend to Microsoft.

VMware has long been the go-to business virtualization company. But now everyone is in the virtualization business. I think VMware should look into providing more of a complete software stack by buying its new best buddy, Novell.

Novell has certainly been looking for a buyer. While the company still has almost a billion in the bank, it’s not been doing that well in the market. Red Hat, not Novell, is still the big-time business Linux company. Novell is important — the company is especially strong in IBM’s mainframe Linux space. But as the last Novell earnings report showed, it’s still not doing as well as its shareholders would like.

On the other hand, VMware has been doing quite well. But I continue to wonder just how long VMware can withstand the pressure from so many competitors. There’s Microsoft with Hyper-V, Red Hat with KVM, Citrix with Xen, and Oracle with VirtualBox and Oracle VM. Even if VMware’s software is worlds better than the competition — and I don’t think it is — everyone else is offering virtualization for free or as part of a bundle.

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August 28, 2010
by sjvn01
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Java developers’ reaction to Oracle, Google lawsuit

What do the programmers and companies that depend on the Java software family make of Oracle suing Google? To find out, we asked them.

[ The Five Winners of Oracle suing Google ]

The lawyers and analysts all see potential trouble ahead for Java developers and ISVs coming from Oracle suing Google, but what do they think? I looked around the Web and asked several of them for their thoughts on what Oracle/Google will mean for Java and their own work.

Charles Nutter, a JRuby developer, whose also a former Sun Java developer, recently wrote in Dzone, the popular programmer site, that the “collection of patents specified by the suit seems pretty laughable to me. If I were Google, I wouldn’t be particularly worried about showing prior art for the patents in question or demonstrating how Android/Dalvik don’t actually violate them.”

But, as Nutter noted, no matter the lawsuit’s result, “It’s obviously not great to have two Java heavyweights bickering like schoolchildren, and it would be positively devastating if Android were obliterated because of this. But I think the real damage will be in how the developer community perceives Java, rather than in any lasting impact on the platform itself.”

He also believes that “Nothing in this suit would apply to any of the three mainstream Java Virtual Machines (JVM) that 99% of the world’s Java runs on. Hotspot and Jrockit are both owned by Oracle, and J9 [one of IBM’s Java implementations] is subject to the Java specification’s patent grant for compliant implementations. … And so 99% of the world’s use of Java is in the clear.” At the same time though, Nutter conceded that “This certainly does some damage to the notion of open-source Java implementations, but only those that are not (or can not be) compliant with the specification.” And, that isn’t at all easy to do.

Still, Nutter thinks that whether you’re a Java or an Android developer, you shouldn’t “lose sleep over this.”

Others aren’t so sure. Anatole Tartakovsky, a managing director at Farata Systems, an IT consulting firm, thinks it’s high time “to create [a] Java Open Source Alliance to replace Oracle dependency. It has to examine all Oracle patents and steer away in VM implementation that is based on patents that can be challenged by Oracle. That is the only way to keep momentum Android built in Java space and provide Oracle with expiration notice on their stronghold on Java technology.”

Tartakovsky isn’t the only one who wants to open-source Java up more than it is currently. The idea of a Java open-source alliance or foundation has shown up in several places. On the other hand, there’s always been some desire in the Java community to free Java and the Java Community Process (JCP) from first Sun’s, and now Oracle’s, domination.

Others, like Warren Woodford, creator of MEPIS Linux and currently working at a stealth-mode semantic startup have decided that they want no part of Java now. Woodford said, “We don’t need the extra hassle of having to explain ‘the risk of Java’ to investors or of being shaken down by Larry if we become successful. Fortunately, the law suit was a wake up call. Until the cloud is removed from over Java, we will not be using it in our systems.”

It’s not just Java that has some developers worried. Some are concerned about what Oracle might do to or with other Sun open source programs. Kevin Shockey, an entrepreneur with 18 years of experience in the software industry, reaction to the news of Oracle suing Google was “betrayal. I’m really very upset with Sun for “selling-out” to Oracle. They were probably the worst possible new owner for all of the open-source assets that Sun owned. If this is what we can expect from Oracle then, I’m very worried what the future holds for MySQL and OpenOffice.”

Not surprisingly, Henrik Ingo, project manager and COO at Monty Program Ab, the creator of the MySQL fork, MariaDB. “What we are seeing now is a counter-reaction to Oracle’s hostility. We see open-source developers boycotting Oracle software. So this is probably one of the best things that could ever happen for increasing adoption of MariaDB.”

That said, “As for Java, my gut feeling is that developers will continue to develop with the language that they already know or which is their favorite language. To many this is Java. Most enterprise customers are already paying Oracle for their software licenses. If Oracle monetizes Java more aggressively, then paying for a Java license too won’t change much. They already pay Oracle a lot, and they already don’t like it,” concluded Ingo.

James Bottomley, a Novell distinguished engineer and a Linux Foundation director isn’t too worried about the lawsuit. “At the moment it looks to be Oracle trying to monetize the Sun acquisition by going after a tempting target. Since Google deliberately chose a clean-room reverse engineered JVM, this action doesn’t threaten the implicit patent grant of Gnu General Public License(GPLv2) or the explicit, but rather circumscribed, direct [patent] grant by Sun.”

“It’s sad they chose to go after Android, but Google has the resources to defend against this,” said Bottomley. There is a broader issue here though with open-source licenses. Bottomley added, “I think this also illustrates the consequences of an important dilemma facing mobile users: Google chose to develop the Dalvik JVM as a clean-room reverse engineering project deliberately because they were averse to using the GPL.”

“Now, Bottomley continued, “unfortunately, the implicit patent grant in the GPL isn’t available to them, nor will the community rally around them in the way it would if a GPL-derived JVM were attacked in this way.”

So, as far as Bottomley is concerned, “Until there’s evidence of any threat against the GPL licensed JVMs in common use, I think this is just a fight between two corporations … although, obviously, I’ll be taking a watching brief just in case.”

This wait-and-see attitude seems to be the most common position of Java programmers. Oh sure, there are some who are swearing they won’t ever use Java, or any Oracle product again, but most are just holding their breath to see if Oracle goes after anyone else besides Google. Until they do, it’s going to be development as usual.

A version of this story first appeared in ITWorld.

August 27, 2010
by sjvn01
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Managing Developers 101

We all use PHP in our enterprises. It’s become the do-it-all language of choice for Web developers, from the smallest companies to the Fortune 500 and back again. However, PHP — which has been called “the one programming language that makes German look terse” — has problems with scalability. It is all too easy to write sloppy code that never-the-less works well enough to be rolled out.

Of course, as Luke Welling, Web Team Lead at Message Systems, a digital messaging management company and co-author of the “Bible” of commercial PHP/MySQL programming, PHP and MySQL Web Development, pointed out at an OSCON seminar in Portland, OR, that’s true of many corporate programming projects.

So what can you, as IT management, do about this? Well, for starters, Welling suggested that managers fight the attitude that sloppy programming is acceptable because IT can always “throw more and faster processors” at any performance problem. Sometimes, you can’t fix performance problems with hardware. You need to convince developers and their team leaders that writing to the minimum hardware requirements, rather than the maximum, is the smart thing to do.

You also need to fight the common programmer perception that all production code is temporary. This starts with the basics. Welling observed that many developers don’t even believe that the language or dialect they’re writing in is still going to be used in production systems in a few years. Wrong! According to Welling, the idea that “PHP code is going to hang around is not a crazy idea. Programming languages hang around for a very long time, as the COBOL programmers who were pulled out of retirement to deal with the Year 2000 bug found out.”

More specifically, you must convince programmers and their team leads that “No, the code you dash off today won’t be replaced properly next year. Unless the code causes real issues today there will never be time to replace it in the future.” Welling believes that “Inertia is powerful, platform changes are harder, rewrites are harder still, and people get stuck in their ways.” So encourage developers to get it right, or righter anyway, the first time.

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