Clemens Vasters.

Tales from the land of cloud computing. From, well, how shall I say - up here?
Posts
  • Clemens Vasters.

    Internet of Things: Gadgeteers, Gatherers, Messengers, and Controllers

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    2 trillion ( Gartner ), 4 trillion ( ARC ), 7 trillion ( IDC , PwC), 14 trillion ( Cisco ), 19 trillion ( SoftTech ). U.S. Dollars. Cumulative value-add by “IoT”. by 2020. or 2022. or 2025. or over the next 20 years. Shiny CFO and potential investor eyes...
  • Clemens Vasters.

    Internet of Things – Terminals, Hosts, Peripherals

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    [This is a follow-up post to "Internet of Things or Thing on the Internet?" ] The metaphor "Internet of Things" stands for the next wave of expansion of scope for distributed systems. We started the journey with centralized systems, single computers...
  • Clemens Vasters.

    “Service Assisted Communication” for Connected Devices

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    There is good reason to be worried about the "Internet of Things" on current course and trajectory. Both the IT industry as well as manufacturers of "smart products" seem to look at connected special-purpose devices and sensors as a mere variation of...
  • Clemens Vasters.

    In search of: Lightweight secure tunnel protocol for use between well-known peers

    • 4 Comments
    I have an immediate job opening for an open standard or multivendor transport layer security protocol that does NOT rely on or tie into PKI and especially doesn’t require the exchange of X.509 certificates for an initial handshake, supports...
  • Clemens Vasters.

    Internet of Things or Thing on the Internet?

    • 3 Comments
    Terminology that loosely ring-fences a group of related technologies is often very helpful in engineering discussions – until the hype machine gets a hold of them. “Cloud” is a fairly obvious victim of this. Initially conceived to describe large-scale...
  • Clemens Vasters.

    Blocking outbound IP addresses. Again. No.

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    Just replied yet again to someone whose customer thinks they're adding security by blocking outbound network traffic to cloud services using IP-based allow-lists. They don't. Service Bus and many other cloud services are multitenant systems that...
  • Clemens Vasters.

    TechEd Europe 2013: Service Bus Sessions

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    Messaging with Windows Azure Service Bus Windows Azure Service Bus offers a rich set of messaging capabilities in the cloud as well as on-premises. This session discusses some of the advanced messaging capabilities in Service Bus. Join us to learn...
  • Clemens Vasters.

    Things. M2M. IoT - Connecting Special Purpose Devices to and through the Cloud

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    I published a new video over on Subscribe about the "Internet of Things". Check it out.
  • Clemens Vasters.

    Mobile, Outside, Inside, and Attached: A Taxonomy for Mobile Experiences

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    We're talking a lot about "Mobile" solutions in the industry, but the umbrella that this moniker casts has become far too big to be useful and doesn't represent any particular scenario subset that's useful for planning services for "mobile" devices. Nearly...
  • Clemens Vasters.

    Internet of Things: Is VPN a False Friend?

    • 2 Comments
    "Internet of Things" (IoT) is the grand catchphrase for network-enabling everyday objects and leveraging the new connectivity to collect information from the devices, allowing network-side control, and supplying information to those objects that allows...
  • Clemens Vasters.

    Utopia ESB

    • 3 Comments
    The basic idea of the Enterprise Service Bus paints a wonderful picture of a harmonious coexistence, integration, and collaboration of software services. Services for a particular general cause are built or procured once and reused across the Enterprise...
  • Clemens Vasters.

    Negotiate, Promise, Do. Transactions.

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    Head over to my Subscribe! blog on Channel 9 for the latest episode on Transactions .
  • Clemens Vasters.

    Push vs. Pull

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    Here’s from my Channel 9 Subscribe blog, an ad-hoc, single-take whiteboard discussion on "push" and "pull" communication patterns. There's a lot of talk in the industry on push (see push notifications) and pulling/polling (long polling vs. web sockets...
  • Clemens Vasters.

    Subscribe! - Getting Started with Service Bus

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    Over on my new Channel 9 blog I've started a series that will (hopefully) help novices with getting started developing applications that leverage Windows Azure Service Bus (and, in coming episodes also Service Bus for Windows Server) The first two...
  • Clemens Vasters.

    “Subscribe!”

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    I have a new (additional) blog. It's not a "write" blog, it's a "speak" blog. Over on Microsoft's Channel 9 I started the "Subscribe!" blog last Friday night. The goal for it is to be a way to talk about middleware and specifically about my team's...
  • Clemens Vasters.

    Where I’m at, what’s next, and asking for some help

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    Here's a short video explaining where I’m at now ( here’s a map ) and what I’m up to. Meanwhile I’ve also figured out how to put sound on both channels with the setup that I have, but here it’s still just on the left channel and also doesn’t sound as...
  • Clemens Vasters.

    Service Bus: BeginSend is no magic async pixie dust

    • 2 Comments
    I just got off the call with a customer and had a bit of a déjà vu from a meeting at the beginning of the week, so it looks like the misconception I'll explain here is a bit more common than I expected. In both cases, the folks I talked to, had the...
  • Clemens Vasters.

    About the 'D' in ACID Transactions

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    I just got prompted to write this in an email reply and I think it's worth sharing. My personal definition for ACID's Durability tenet is as follows: "The outcome of the transaction outlasts the transaction, meaning that the result of the transaction...
  • Clemens Vasters.

    Are you catching falling knives?

    • 2 Comments
    as I thumb through some people's code on Github, I see a fairly large number of "catch all" exception handling cases. It's difficult to blame folks for that, since there's generally (and sadly) very little discipline about exception contracts and exception...
  • Clemens Vasters.

    Going Home

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    After just over six years in the United States, our family is going to relocate back to Germany sometime in the second half of this month. Thanks to a lot of effort by our management and HR teams at Microsoft, including our VP Scott Guthrie, I will...
  • Clemens Vasters.

    Sagas

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    Today has been a lively day in some parts of the Twitterverse debating the Saga pattern. As it stands, there are a few frameworks for .NET out there that use the term "Saga" for some framework implementation of a state machine or workflow. Trouble is...
  • Clemens Vasters.

    "I want to program my firewall using IP ranges to allow outbound access only to my cloud apps"

    • 1 Comments
    We get a ton of inquiries along the lines of “I want to program my firewall using IP ranges to allow outbound access only to my cloud-based apps”. If you (or the IT department) insist on doing this with Windows Azure, there is even a downloadable and...
  • Clemens Vasters.

    Transactions in Windows Azure (with Service Bus) – An Email Discussion

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    I had a email discussion late last weekend and through this weekend on the topic of transactions in Windows Azure. One of our technical account managers asked me on behalf of their clients how the client could migrate their solution to Windows Azure without...
  • Clemens Vasters.

    “Push”

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    There’s a lot of talk about “Push” notifications both in web and mobile scenarios. “Push” is often positioned as something entirely different to “Pull” (or polling). The reality is that “Push” in the sense that it is used with Web Sockets or Apple/Windows...
  • Clemens Vasters.

    MSDN Magazine June 2012: Using Windows Azure Service Bus for … Things!

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    I actually had to double-check whether it’s really true given all my talks and places where I’ve published articles, but the June 2012 issue of MSDN Magazine is indeed the first of this storied publication in which I have an article. It’s about the “Internet...
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