At the Forge - OpenID
OpenID is an increasingly important standard that seems poised to have a central role in future Web and Internet-connected applications. Using OpenID is not terribly complicated for end users, and it supposedly is going to be integrated into Firefox in the near future.
Next month, we will look at OpenID from the perspective of a Web site that requires users to register. How can you, as a Web developer, support OpenID on your site? We will see that with a bit of work, and some support from open-source libraries, we can support OpenID in our Web applications.
The main site for OpenID information is openid.net. That site has documentation, mailing lists, links to software and lists of OpenID providers and consumers.
A screencast that demonstrates many of the same ideas from this column is available at simonwillison.net/2006/openid-screencast.
A discussion of the pros and cons of OpenID is at radar.oreilly.com/archives/2007/02/pros_and_cons_o.html.
Finally, a list of sites using OpenID, as well as providers you can use, is at openiddirectory.com.
Reuven M. Lerner, a longtime Web/database developer and consultant, is a PhD candidate in learning sciences at Northwestern University, studying on-line learning communities. He recently returned (with his wife and three children) to their home in Modi'in, Israel, after four years in the Chicago area.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
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