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Entries for August 2009

F5 and VMware demonstrate live migration of a virtualized application across clouds without downtime or user disruption Cloud is reaching the peak of possibilities and that (often) means just more paper solutions. You know the ones; the ones that exist only on paper (or in blogs as the case may be). Those paper solutions need to exist because the ideas need to come first either out of necessity, i.e. to solve a specific problem, or out of a desire to find new ways to leverage emerging technolo...
articleicontrolbig-ipdevtechtip August 31, 2009 by Jason Rahm
Note: pycontrol v1 is deprecated. A new article and script have been added to work through the bigsuds library. I started this series of tech tips by building the foundation of a route management application which grabs the static routing table from the BIG-IP utilizing the python implementation of iControl called pyControl.  The last tip focused on cli options and deleting routes.  This time, we'll add another extension to add routes to the BIG-IP. New iControl Method -> add_stat...
How to leverage a “private virtual cloud” such as Amazon VPC with your own dynamic infrastructure A couple of blog posts on Amazon’s recent announcement of its VPC (Virtual Private Cloud) have made much of the fact that the resources available within Amazon’s cloud via VPC aren’t public. These same commentaries seem to believe that this makes the resources not very valuable. One author called it a “terrible” implementation because “users can’t expose clients to the internet and can’t assign...
I submit to you my second attempt at this week's Top5 after a vile BSoD swooped down and smote my first attempt into a pile of fiery ash. There were a couple announcements this week on DevCentral along with the expected awesome technical content. I'll try to touch on those as well as a couple other things that you should definitely check out in this week's DevCentral Top5:   Announcing F5 Management Pack 1.4 for Microsoft System Center Operations Manager 2007 https://devcentral.f5.com/weblogs/...
DNS wasn’t meant to handle hybrid cloud architectures and on-demand routing When you start distributing services (workloads, applications) across multiple locations, a la cloud balancing, and those locations may change on a frequent basis you begin to run into problems with finding those services and scaling the rate of change effectively. DNS was designed to resolve host names, but never expected that the same host name might resolve to one of two, three, or four IP addresses all within the ...
The 2009 DevCentral Community Survey wrapped up last Thursday and the volume of participation simply crushed all previous DevCentral surveys. With over 500 respondents from around the world, this survey provided some remarkable insight into who you are, what types of things you’d like to see in the future, as well as some things you NEVER want to see from F5. (note: I’m saving this for a future blog post of it’s own) Over the coming weeks, I’ll be sharing some interesting stats with you about y...
articlepodcasthardwareus August 27, 2009 by Joe Pruitt
This week marks a major milestone for us here at DevCentral: we have reached our 100th weekly Podcast!  To celebrate, we are going to try some new formats and the first one of these is user interaction!  Starting today, we will be streaming our podcasts live on UStream.tv so you can listen in while we are recording.  Don't worry, we will still be archiving the audio versions on DevCentral, iTunes, etc. UStream.tv gives us a few benefits.  First, we can broadcast video along with the audio.  At ...
In comedy, a hack is someone who steals material and re-tells the jokes or rides the coattails of another comedian (I still remember Kenny Bania telling Seinfeld, ‘That’s gold, Jerry. Gold!!)  In Information Technology, a hack can either mean a quick non-standard fix to make something work OR to modify a program to gain access that otherwise would be unavailable.  As an aside, there is a bit of controversy over the term hack/hacker as they have evolved over the years and some don’t like the conn...
Cloud changes how we deliver applications but we’re still delivering applications With all the hype around cloud it’s easy to get caught up in deployment models and architectures and how much money it is/is not going to save us and, of course, with the cool factor that always surrounds such innovation. But when we get our heads too far up in the clouds we forget what we’re really doing: delivering applications. Whether it’s thin-client, fat-client, browser-based, client/server, three-tier, n-t...
Secure, optimized tunnels to a remote site, e.g. the cloud. Haven’t we been here before? In the continuing discussion around Business Intelligence in the cloud comes a more better (yes I did, in fact, say that) discussion of the reasons why you’d want to put BI in the cloud and, appropriately, some of the challenges. As previously mentioned, BI data sets are, as a rule, huge. Big. Bigger than big. Ginormous, even. One of the considerations, then, if you’re going to leverage a cloud-based busin...
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