All posts by onlyconnect

blogging, linux, microsoft, php, Web

Running WordPress on Windows Azure

I am investigating hosting this site on Windows Azure, partly as a learning exercise, and possibly to enable easier scaling.

I discovered that any web site short of Standard is worthless other than for experimentation and prototyping. I set up a Small Standard Web Site (£48 per month). But what database? I recalled that you can run WordPress with SQL Server and tried using a 1GB SQL Server Web Edition hosted on Azure (£6.35 per month).

In order to use this, I used the Brandoo WordPress configuration which is set up for SQL Server. I later discovered that it uses the WP Db Abstraction plug-in which according to its home page has not been updated for two years. The installation worked, but some plug-ins reported database errors. I imported some posts and found that search was not working; all searches failed with nothing found.

My conclusion is that running WordPress with SQL Server is unwise unless you have no choice. I looked for another solution.

Azure has a Web Site template which uses WordPress and a MySQL database hosted by ClearDB. I would rather not involve another hosting company, so considered other options. One is to run a VM on Azure and to install MySQL on it. If you are doing that, you might as well put WordPress on the same VM at least until the traffic justifies scaling out. So I have created a new Medium Linux VM – two virtual cores, 3.5GB RAM – at £57 per month, with Ubuntu, and installed the LAMP stack and WordPress on that. The cost is similar to the Windows/SQL Server setup, but the VM is a higher specification, since a Small Web Site is 1 virtual core and 1.75GB RAM. You also get full access to the VM, as opposed to the limited access that a Web Site offers. The installation is a bit more effort but performance is better and it looks like this might work.

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android, apple, delphi, embarcadero, mobile, professional, software development

Embarcadero pre-announces AppMethod cross-platform development tool: Delphi repackaged?

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Embarcadero is spilling the beans on a new development tool called AppMethod, which has its own site here and a little more information on TechCrunch. A fuller reveal is promised at SXSW, which kicks off on March 7 in Austin, Texas.

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But what is AppMethod? The IDE looks very like Delphi, the languages are Object Pascal (like Dephi) or C++ (like C++ Builder), and target platforms include Windows, Mac, iOS and Android. It would be extraordinary if the GUI framework were not some variant of FireMonkey, the cross-platform and mobile framework in Delphi.

Just Delphi (and C++ Builder, which is Delphi for C++) repackaged then? In a comment Embarcadero developer evangelist David Intersimone says that is “way off base” though the only firm fact he offers is that AppMethod is less capable than Delphi for Windows, which presumably means that Delphi’s VCL (Visual Component Library) framework for Windows applications is not included.

Lack of a feature is not a compelling reason to buy AppMethod rather than Delphi so Object Pascal enthusiasts must hope there is more good stuff to be revealed.

I looked out for the Embarcadero stand at Mobile World Congress (MWC), which was a small affair tucked away in the corner of one of the vast halls.

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The stand was hardly bustling and was overshadowed by a larger stand next to it for another app building tool, AppMachine. While I would not read much into the size of a stand at MWC, that accords with my general sense that while the recently added cross-platform and mobile capabilities in Delphi have won some take-up, it is a small player overall. Embarcadero may feel that a new name and a bit of distance between FireMonkey/Delphi and the original Windows-only tool will help to attract new developers.

professional, software development

Why you cannot prove software correctness: report from QCon London

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I’m at QCon London, an annual developer conference which is among my favourites thanks to its vendor-neutral content.

One of the highlights of the first day was Tom Stuart’s talk on impossible programs. Using a series of entertaining and mostly self-referential examples, Stuart described why certain computing problems are uncomputable. He also discussed the “Halting problem”: unless you emasculate a computing language by removing features like While loops, you cannot in general answer the question “will this program ever finish”.

All good fun; but the dark side of the talk comes at the end, when Stuart proves with a flourish that a consequence is that you cannot prove software correctness.

In a world that is increasingly software-driven, that is a disturbing thought.

cloud computing, facebook, google, professional

Privacy and online data sharing is a journey into the unknown: report from QCon London

I’m at QCon London, an annual developer conference which is among my favourites thanks to its vendor-neutral content.

One session which stood out for me was from Robin Wilton, Director for Identity and Privacy at the Internet Society, who spoke on “Understanding and managing your Digital Footprint”. I should report dissatisfaction, in that we only skated the surface of “understanding” and got nowhere close to “managing”. I will give him a pass though, for his eloquent refutation of the common assumption that privacy is unimportant if you are doing nothing wrong. If you have nothing to hide you are not a social being, countered Wilton, explaining that humans interact by choosing what to reveal about themselves. Loss of privacy leads to loss of other rights.

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In what struck me as a bleak talk, Wilton described the bargain we make in using online services (our data in exchange for utility) and explained our difficulty in assessing the risks of what we share online and even offline (such as via cameras, loyalty cards and so on). Since the risks are remote in time and place, we cannot evaluate them. We have no control over what we share beyond “first disclosure”. The recipients of our data do not necessarily serve our interests, but rather their own. Paying for a service is no guarantee of data protection. We lack the means to separate work and personal data; you set up a LinkedIn account for business, but then your personal friends find it and ask to be contacts.

Lest we underestimate the amount of data held on us by entities such as Facebook and Google, Wilton reminded us of Max Schrems, who made a Subject Access Request to Facebook and received 1200 pages of data.

When it came to managing our digital footprint though, Wilton had little to offer beyond vague encouragement to increase awareness and take care out there.

Speaking to Wilton after the talk, I suggested an analogy with climate change or pollution, on the basis that we know we are not doing it right, but are incapable of correcting it and can only work towards mitigation of whatever known and unknown problems we are creating for ourselves.

Another issue is that our data is held by large commercial entities with strong lobbying teams and there is little chance of effective legislation to control them; instead we get futility like the EU cookie legislation.

There is another side to this, which Wilton did not bring out, concerning the benefit to us of sharing our data both on a micro level (we get Google Now) or aggregated (we may cure diseases). This is arguably the next revolution in personal computing; or put another way, maybe the bargain is to our advantage after all.

That said, I do not believe we have enough evidence to make this judgment and much depends on how trustworthy those big commercial entities prove to be in the long term.

Good to see this discussed at Qcon, despite a relatively small attendance at Wilton’s talk.

microsoft, professional

The problem with backpedalling on Windows 8: it is the wrong direction

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Lukas Mathis has a detailed post on Windows 8, including its advantages over the Apple iPad as a productivity tablet. Mathis switched from the iPad to a Surface Pro:

In general, I really love the Surface, and I use it much more, and for many more things, than I ever used any iPad I ever owned. But it’s not perfect.

Mathis likes the Metro (Windows Runtime) UI:

Almost everything that happens inside the Metro environment is fantastic. It’s clean, fast, and powerful. The apps are easy to use, but still offer a lot. The gesture-based user interface requires you to learn a few new things, but takes very little time to get used to.

This makes interesting reading for Windows users (and there seem to be many) who have convinced themselves that Metro is difficult, pointless or obstructive, though of course it may be those things to them. It is also true that you cannot easily get your work done in Metro alone. Office, Visual Studio, Windows Live Writer are three quick examples of applications which do not have any good substitute, not to mention countless custom line of business applications, so you still need the desktop whether you like it or not.

Mathis is also scathing about various aspects of Windows:

The problems with Windows 8 don’t end with the integration between desktop and Metro. There’s also the problem that good old Windows seems to be a pretty terrible operating system.

He relates encounters with DLL errors, inconsistent visual design, old stuff left in for legacy reasons, and a culture of adware, spyware and malware.

Personally I have learned how to navigate the Windows software world and have fewer problems than Mathis but that said, his complaints are justified.

These problems are hard to fix which is why Microsoft made such radical changes in Windows 8, making a new, secure and touch-friendly personality the centre and (conceptually at least) isolating the old desktop into a legacy area for running your existing apps. Although there are many flaws in the way this change has been executed, it seems to me a reasonable approach if Windows is to have a future beyond business desktops.

What was and is wrong with Windows 8? My own list of flaws includes:

  • Poor selection and quality of apps, even the built-in ones that had no reason not to be great
  • A design that lacks visual appeal
  • An immature development platform, too difficult, buggy and incomplete
  • Lack of a status bar in Metro so you cannot see at a glance essentials like time, date and battery life
  • Widescreen design that does not work well in portrait
  • Confusions like two versions of Internet Explorer, Metro PC settings vs Control panel and so on

I could go on; but there are also plenty of things to like, and I disagree with commonly expressed views like “it is no good without touch” (I use it constantly with only keyboard and mouse and it is fine) or “bring back the Start menu” (I like the new Start menu which improves in several ways over its predecessor).

It does not matter what I think though; the truth is that the business world in particular has largely rejected Windows 8, and the consumer world is hardly in love with it either. I look at lists of PCs and laptops for sale to businesses and the majority state something like “Windows 8 downgraded to Windows 7” or “Windows 7 with option to upgrade to Windows 8”. This tells the whole story.

It seems to me that the Windows 8 team has been largely disbanded, following Stephen Sinofsky’s resignation and Julie Larson-Green’s sideways moves; she is now “Chief Experience Officer in the Applications and Services Group”; and whatever that means, she is no longer driving the Windows team. Microsoft has to come to terms with the failure of Windows 8 to meet its initial objectives and to make peace with the user base that has rejected it. There are signs of this happening, with coming updates that improve integration between Metro and Desktop and ease the learning path for keyboard and mouse users:

Most of the changes in the update are designed to appease keyboard and mouse users, with options to show Windows 8 apps on the desktop taskbar, the ability to see show the desktop taskbar above Windows 8-style apps, and a new title bar at the top of Windows 8 apps with options to minimize, close, or snap apps.

The big question though is what happens to Metro in the next major release of Windows, bearing in mind that its chief advocates are no longer running the show. Should and will Microsoft stop trying to push the unwanted Metro environment on users and go back to improving the desktop, as it did when moving from Windows Vista to Windows 7?

My guess is that we will see some renewed focus on the desktop; but Microsoft will also be aware that the problems that gave rise to Metro still exist. The Windows desktop is useless on tablets, the Windows culture foists numerous applications with evil intent on users, and the whole design of traditional Windows is out of step with modern moves towards simpler, safer and easier to manage computing devices.

Therefore the correct direction for Microsoft is to improve Metro, rather than to abandon it. If we see a renewed focus on the desktop to the extent that energetic Metro development ceases, Microsoft will be marching backwards (and perhaps it will).

The only plausible “Plan B” is to do what some thought Microsoft should have done in the first place, which is to evolve Windows Phone to work on tablets and to replace Metro with a future generation of the Windows Phone OS, perhaps running alongside the desktop in a similar manner. Since Microsoft has stated its aim of a unified development platform for Windows Phone and Windows Runtime, Plan B might turn out the same as Plan A.

All this is late in the day, maybe too late, but the point is this: a revitalised desktop in Windows 9 will do little to arrest its decline.

.net, microsoft, mobile

X is for Xamarin: One company that is pleased to see Nokia X

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Xamarin, which provides cross-platform development tools for targeting iOS and Android wtih C#, is not exhibiting here at Mobile World Congress in Barcelona, but does have a presence for meetings, and I caught up with Joseph Hill who is Director of Developer Relations.

Xamarin has just announced a joint SDK with SAP along with some SAP-specific support in its cloud testing service; but Monday’s announcement of Nokia X, Android smartphones from soon-to-be-Microsoft Nokia, was even bigger news from Hill’s perspective.

If you are a Windows Phone developer with apps written in C#, Xamarin gives you a way to port your code to Nokia X. Apparently Nokia itself has taken advantage of this to port Nokia Mix Radio, as described by Nokia’s developers here. Nokia also used MVVM Cross in order to take cross-platform abstraction beyond what Xamarin itself gives them (Xamarin is deliberately restricted to non-visual code).

Nokia states that it will do all future development using Microsoft’s Portable Class Libraries, and is also refactoring existing code:

The final step in our journey towards the common architecture is to throw out the legacy code from the Windows Phone and Windows 8 apps so they’re stripped back to existing PCL shared assemblies and then integrate them with our fully shared codebase. Now that the Nokia X has launched that’s the next major goal we’re striving towards and work begins now.

I imagine that Xamarin could prove useful in some of Microsoft’s other internal projects as it prepares for a world in which there is an official Microsoft Android platform.

As an aside, it seems to me unlikely that Microsoft will do anything other than run with Nokia X after the acquisition. Microsoft is supporting Nokia X with Skype and OneDrive, which is an indication of its attitude.

microsoft, mobile, samsung

Samsung evolving KNOX into complete mobile device management solution

Samsung introduced KNOX at the 2013 Mobile World Congress (MWC). It is a secure app and data container for Samsung mobiles, backed by hardware, enabling businesses to run apps that are isolated from a user’s personal apps (which might include badly behaved or even malicious apps). Data is encrypted so that business secrets are safe if the device goes astray.

The core of Knox is a hardware process called TIMA (Trustzone Integrity Measurement). This checks for tampering in the core operating system (trusted boot) and sets a tamper bit if it detects a problem. The tamper bit cannot be set in software alone.

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A device with KNOX activated can be flipped between personal and business (KNOX) personalities. It is like having two smartphones in one. Whether this is a desirable approach is up for debate, but it does secure business apps and data.

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We did not hear much about KNOX after last year’s MWC. It was released a few months later, but snags included limited device support (only the latest Samsung devices), the need to prepare apps with a special KNOX wrapper before they could be used, and the need to hire a Samsung partner like Centrify to provide administration tools.

All that has changed following last night’s announcement of the next generation of KNOX. Highlights:

Most apps can now be installed in KNOX without any special wrapper

You can use a third-party container such as Good, Fixmo Safezone, or MobileIron AppConnect in place of the KNOX container, but still using KNOX hardware protection.

Two factor authentication (for example requiring a fingerprint swipe as well as a password to access a KNOX container)

KNOX supports Microsoft’s workplace join (a kind of lightweight domain join) for secure access to Microsoft network resources.

Samsung has introduced a cloud-based Mobile Device Management (MDM) tool called KNOX EMM (Enterprise Mobility Management). This runs on Microsoft’s Azure platform and integrates with Azure Active Directory (which can itself link to on-premise Active Directory) so that small businesses on Office 365, or large businesses which prefer a cloud tool, can manage both Knox and other devices. EMM is primarily aimed at SMEs but apparently can scale up without limit.

EMM will also support non-Samsung devices.

EMM includes an app marketplace allowing businesses to purchase and deploy apps. The example we were shown was the Box cloud storage service.

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Availability is promised for the second quarter of 2014.

mobile

The Privacy Panel in Firefox OS

I tweeted about the privacy panel in Firefox OS, which attracted considerable interest, so I’m posting the snap I took of the feature.

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Holding the phone is Alex Fowler, Mozilla’s Global Privacy and Policy Leader. The Location Blur feature is OS-wide, not specific to any app.

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I find the feature interesting, because the ability to hide your location (somewhat; operators will still know which mast you are connecting to) is one that users deserve, but which runs counter to location-based marketing or data collection. Mozilla as an open source foundation is more likely to promote such a feature than corporations like Google whose business is based on advertising – having said which, Mozilla’s income comes to a large extent from Google thanks to search revenue, which is paid for ultimately by advertising. It’s complex.

development, google, software development

Nokia’s puzzling Android announcement: Nokia X

Nokia has announced the X range: Android smartphones connected to Microsoft/Nokia services including Bing search, OneDrive cloud storage, Nokia Here maps, and Nokia Music.

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The phones, according to Nokia, are aimed at the “affordable” market especially in “growth markets” or in other words, less developed territories.

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The stated reason for Nokia X is combine the rich Android app ecosystem – apart from Google’s own apps which largely will not run because of their dependence on proprietary Google Play services – with a “feeder” for the cloud services which are shared with the Lumia range. The UI is tiled and the phones have the look and feel of cut-down Lumia more than Android. Nokia’s Stephen Elop stated that Lumia and Windows Phone remains Nokia’s primary smartphone strategy.

Note that although Nokia is being acquired by Microsoft, the deal is not complete, and Nokia’s management is equally as independent of Microsoft as it was this time last year.

Here’s the puzzle though. Elop also announced that the low-end Windows Phone, Lumia 520, outsells Android in the €75-150 price range, exactly the range also occupied by Nokia X. It is no more affordable than Windows Phone. The real rationale then is about the Android app ecosystem rather than affordability.

There are several reasons why Nokia X might not be a big hit.

First, consumers will pick up that these do not offer the same experience as mainstream Android devices running Google services. This might not matter if the Microsoft/Nokia services were superior to those from Google, but that is hard to see. Bing vs Google for search?, Nokia Music vs Google Play music? Google Now vs no equivalent? Play Store vs Nokia Store?

Second, if you want a Microsoft services device, how likely is it that the supporting apps on Android will be superior to those on Windows Phone? Take Office 365, for example. Windows Phone has better support than Android, and that is part of Microsoft’s differentiation.

If Nokia X is a worse Android than Android, and a worse Windows Phone than Windows Phone, what is the point of it and why will anyone buy?

Here is where Nokia X does make sense. It is a strong Plan B for a company that is having second thoughts about the long-term prospects of Windows Phone. Perhaps it could also replace Asha at the low end, if in time Nokia manages to drive the cost down. The Android operating system is free, if you leave out the proprietary Google bits, so there is some cost saving versus Windows Phone.

Unfortunately there is also a negative impact on Lumia, in that Nokia is seen to be wavering in its commitment to Windows Phone and distracted by supporting too many mobile operating systems. There was no Lumia announcement today at Mobile World Congress, which is odd considering that Nokia has a reasonable story to report in terms of platform growth.

.net, azure, cloud computing, microsoft, sharepoint

New features in Windows Azure, including web site backup, .NET mobile services

Microsoft has announced new features in Windows Azure, its cloud platform, described by VP Scott Guthrie on his blog.

Aside: I agree with this comment to his post:

Thank you Scott for update. I wish dozens of MS folks and MS representatives would have a clue about Azure roadmap to help businesses plan their release schedules / migration plans. Till that happens, this blog will remain the main source of updates and a hint of roadmap.

The changes are significant. ExpressRoute offers connectivity to Azure without going through the public internet. Currently you have to use an Equinix datacentre, Level 3 cloud connect, or an AT&T MPLS (Multiprotocol Label Switching) VPN. For enterprises that can meet the requirements and who are wary about data passing through the internet, or who want better connectivity, it is an interesting option.

Next up is backup and restore for Azure web sites. Azure web sites are a way of deploying web applications, ranging from free to multi-instance with automatic scaling. You need at least a Standard site for serious use, as I explained here.

Now you can set up scheduled backup for both the web site and a supporting database. The feature is in preview but you can try it now using the Azure web management portal.

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I noticed a couple of things. One is that the storage account used must be in the same subscription as the web site. I also spotted this warning:

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which states that “frequent backups can increase you database costs by up to 100%”. Still, it is a handy feature.

Azure mobile services, designed to supply data to mobile apps, has been extended to support .NET code (previously you had to use Javascript). If you download the code, notes Guthrie, you find that it is  “simply an ASP.NET Web API project with additional Mobile Service NuGet packages included.”

Mobile Services also have new support for notification hubs and for PhoneGap (a way of building mobile apps using HTML and JavaScript).

Another feature that caught my eye is easy linking of third-party apps to Azure Active Directory (which is also used by Office 365). For example, if you are struggling with SharePoint and its poor clients for Windows, iOS and Android, you might consider using Dropbox for business instead. Now you can integrate Dropbox for Business with your Office 365 user directory by selecting  it from the Azure management portal.

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