At the Forge - Authenticating to a Rails Application
acts_as_authenticated is good enough for many sites as it currently stands. However, there are a number of plugins, suggestions and modifications that you can use with acts_as_authenticated.
For example, many registrations systems want to stop bots from automatically creating user names or e-mail addresses, which can be used to send spam. Thus, it's common for the registration system to ask that users confirm their membership requests via e-mail. So, you enter your information at the site and receive a message that asks you to click on a link. Only after clicking on that link is your account actually activated.
This functionality, although not an obvious part of the core acts_as_authenticated plugin, comes with it and is easy to use. Basically, we use the other generator that comes with acts_as_authenticated. This creates the templates and most of the logic that we need for people to confirm their login status.
There are a wide variety of other things you can do with acts_as_authenticated. For example, you can set it so that passwords are encrypted, but in a way such that it would be reversible. Another common task is to let users change their personal information, such as e-mail addresses and telephone numbers.
This whole discussion of acts_as_authenticated began because I wanted to use OpenID in a Rails application. However, I also wanted to integrate OpenID with an existing authentication mechanism, which brought me to acts_as_authenticated. Now that we have a working, if bare-bones, authentication system on our Web site, we can move on to the next step.
Even if you are not using acts_as_authenticated in your Rails application, it's useful to see how plugins work, how you interact with them and how you can use them to build your Rails application out of parts that have been contributed by other programmers.
Next month, we will look at how we can integrate OpenID into our login system—namely, allowing people to log in using either a user name/password combination or OpenID.
If you're still new to Rails, I strongly recommend The Rails Way by Obie Fernandez. I have found it to be both clear and comprehensive, and one chapter in the book is dedicated to acts_as_authenticated.
There are a number of good resources about acts_as_authenticated on the Web. However, the most comprehensive is the author's Wiki, at technoweenie.stikipad.com/plugins/show/Acts+as+Authenticated.
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
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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|The Firebird Project's Firebird Relational Database||Jul 29, 2016|
|Stunnel Security for Oracle||Jul 28, 2016|
|SUSE LLC's SUSE Manager||Jul 21, 2016|
|My +1 Sword of Productivity||Jul 20, 2016|
|Non-Linux FOSS: Caffeine!||Jul 19, 2016|
|Murat Yener and Onur Dundar's Expert Android Studio (Wrox)||Jul 18, 2016|
- Stunnel Security for Oracle
- The Firebird Project's Firebird Relational Database
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- SUSE LLC's SUSE Manager
- Managing Linux Using Puppet
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Google's SwiftShader Released
- Doing for User Space What We Did for Kernel Space
- SuperTuxKart 0.9.2 Released
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.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide