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Andrew Clarke


Andrew Clarke

Towards Security as a Service?

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There’s some fuss around the additional security risks of moving an existing service within a corporate data center, to a cloud-hosted virtual machine, with a shared infrastructure. I appreciate the caution, but I wonder if they aren’t overstated. Sure, there are new risks, intrinsic to the cloud. For example, the so-called Hyper-jack is a security […]

26 March 2013 10:34 am by
Andrew Clarke

On taking a more nuanced approach to Cloud services.

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Although it makes a lot of sense for an IT department to use the Cloud where possible instead of using its own IT infrastructure, you can’t just move everything and expect to be left with no task more taxing than twiddling a big dial marked ‘scale’. Whereas the cloud works well with stateless, process-heavy, application […]

28 January 2013 3:13 pm by
Andrew Clarke

Awful OAuth 2.0? When Standards go bad.

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‘The noisiest of those competitive battles (between suppliers) will be about standards. The eyes of most sane people tend to glaze over at the very mention of technical standards. But in the computer industry, new standards can be the source of enormous wealth, or the death of corporate empires. With so much at stake, standards […]

2 August 2012 7:05 pm by
Andrew Clarke

DevOps: Nostrums or Knowledge?

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There are good reasons for the management of the release of applications. Businesses see it as a safety-net to ensure the success of software deployment. This is a process that requires a different mind-set and set of disciplines to development, and is best handled by small specialist teams that are responsible for getting software delivered […]

16 August 2011 7:25 am by
Andrew Clarke

The Cookie Crumbles

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Cookies were never intended to invade your privacy. Transient session cookies were invented out of necessity, by Lou Montulli at Netscape in June 1994, purely to make the use of a shopping cart possible on the stateless web. Permanent, or tracking, cookies soon followed, in order to identify users between sessions and so save users […]

5 July 2011 4:34 am by
Andrew Clarke

Cloud Cuckoo Land

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Does it strike you odd that, despite the outage of Amazon Elastic Compute Cloud (EC2) and Elastic Block Storage on April 21 2011, many of the customers who were affected are still so keen on the service? It puzzled me until I considered the huge diversity of applications out there. If these customers had been […]

10 May 2011 7:37 am by
Andrew Clarke

Virtual Irony for Oracle

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Where’s Oracle VM 3, and why should you be waiting for it? Here lies a puzzling story. On May 13, 2009, in the course of developing Oracle VM 3, Oracle acquired Virtual Iron Software Inc and with it, their rather good VM product Virtual Iron. In June 30th 2009, scarcely a month later, they had […]

12 April 2011 7:47 am by
Andrew Clarke

The Hot-Add Memory Hogs

2 comments

One of the more difficult tasks, when virtualizing a server, is to determine the amount of memory that Hypervisor should assign to the virtual machine. This requires accurate monitoring and, because of the consequences of setting the value too low, there is a great temptation to err on the side of over-provisioning. This results in […]

15 March 2011 7:42 am by
Andrew Clarke

Opportunity Nokia’s

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Nokia’s alliance with Microsoft is likely to be good news for anyone using Microsoft technologies, and particularly for .NET developers. Before the announcement, the future wasn’t looking so bright for the ‘mobile’ version of Windows, Windows Phone. Microsoft currently has only 3.1% of the Smartphone market, even though it has been involved in it for […]

17 February 2011 9:25 pm by
Andrew Clarke

RSS Feeds currently on Simple-Talk

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There are a number of news-feeds for the Simple-Talk site, but for some reason they are well hidden. Whilst we set about reorganizing them, I thought it would be a good idea to list some of the more important ones. The most important one for almost all purposes is the Homepage RSS feed which represents […]

14 February 2011 7:37 am by
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