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• index.html redirecting to cgi-sys/defaultwebpage.cgi

  - by Andrew De Forest

  This problem has been persisting over the last couple of days. I thought I fixed it Friday only to get in on Monday morning and see that cPanel is still giving me issues. On Friday, all incoming traffic to my index.html page were being redirected to cgi-sys/defaultwebpage.cgi. Upon further investigation, I found that my entire index.html code had been overwritten and contained only a single meta tag, which was causing the aforementioned redirect. I re-uploaded the original index page and overwrote the one that was causing the redirects and it seemed to have fixed the problem. Fast forward to Monday. The problem began happening again and I took the same steps as before to fix it, but now I'm wondering how to permanently stop this from happening. From what I've found, it's related to cPanel. I personally did not make any changes to the server, but there are a few people with access who might have. I'm on a VPS with my own dedicated IP address. I've been hosting fine for a few months without this problem. The server is runs a traditional LAMP stack.

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• Building a better .NET Application Configuration Class - revisited

  - by Rick Strahl

  Managing configuration settings is an important part of successful applications. It should be easy to ensure that you can easily access and modify configuration values within your applications. If it's not - well things don't get parameterized as much as they should. In this post I discuss a custom Application Configuration class that makes it super easy to create reusable configuration objects in your applications using a code-first approach and the ability to persist configuration information into various types of configuration stores.

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• License Requirements for Including Dual-Licensed Open-Source Software

  - by Rick Roth

  How do you opt into one software license and not the other when the distributor gives the consumer more than one choice? For example I would like to use the DataTables JavaScript library in my web application. According to their web site, "DataTables is dual licensed under the GPL v2 license or a BSD (3-point) license." Furthermore, the source code of the JavaScript library has this text that calls out both licenses: /** * @summary DataTables * @description Paginate, search and sort HTML tables * @version 1.9.4 * @file jquery.dataTables.js * @author Allan Jardine (www.sprymedia.co.uk) * @contact www.sprymedia.co.uk/contact * * @copyright Copyright 2008-2012 Allan Jardine, all rights reserved. * * This source file is free software, under either the GPL v2 license or a * BSD style license, available at: * http://datatables.net/license_gpl2 * http://datatables.net/license_bsd * * This source file is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details. * * For details please refer to: http://www.datatables.net */ Finally, the web pages with the licensing text (e.g. the DataTables BSD license page) has this statement: "DataTables is made available under both the GPL v2 license and a BSD (3-point) style license. You can select which one you wish to use the DataTables code under." My specific question is "how do you select which one you want to use." In my case, I want to only use the BSD license and I want to make it explicitly clear that I do not opt into the GPL v2 license in any way. How do you do that and have it hold up to legal challenge?

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• A small, intra-app Object to String Serializer

  - by Rick Strahl

  On a few occasions I've needed a very compact serializer for small and simple, flat object serialization, typically for storage in Cookies or a FormsAuthentication ticket in ASP.NET. XML and JSON serialization are too verbose for those scenarios so a simple property serializer that strings together the values was needed. Originally I did this by hand, but here is a class that automates the process.

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• Pyglet vs. PyQt

  - by L. De Leo

  I need to implement a really simple card game. As the game logic is written in Python I chose to stick with some Python framework even if my goal is to develop a Windows only version. I also don't like to work with .NET so I ruled out Iron Python + WPF. I tried to write a simple prototype with Pyglet but soon discovered that I will have to do a lot of stuff by hand: things like detecting mouseover events and finding which card was clicked on and moving it, etc... very low level and unnecessary for my use-case. So I thought it might be easier to do things in PyQt. Do you reckon it would be feasible to use PyQt for implementing a simple card game? Will I have higher level events I can work with?

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• A first look at SignalR

  - by Rick Strahl

  Last month I finally had a chance to use SignalR in a live project for the first time, and I've been impressed by what this technology offers to .NET developers. It's easy to use and provides rich real-time two way messaging between client and server applications, as well as the ability to broadcast message to all connected clients. This is technology that offers many opportunities to rethink of what we can build with Web applications.

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• Abstracting away the type of a property

  - by L. De Leo

  In Python luckily most of the times you don't have to write getters and setters to get access to class properties. That said sometimes you'll have to remember that a certain property is a list or whatnot and a property would save you there by abstracting the type and providing a setter to add something to such list for example rather than exposing the list directly. Where do you draw the line between exposing the type directly or wrapping its access in a property? What's the general "pythonic" advice?

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• Use IIS Application Initialization for keeping ASP.NET Apps alive

  - by Rick Strahl

  Ever want to run a service-like, always-on application inside of ASP.NET instead of creating a Windows Service or running a Console application? Need to make sure that your ASP.NET application is always running and comes up immediately after an Application Pool restart even if nobody hits your site? The IIS Application Initialization Module provides this functionality in IIS 7 and later, making it much easier to create always-on ASP.NET applications that can act like a service.

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• Dynamically loading Assemblies to reduce Runtime Dependencies

  - by Rick Strahl

  Using a static language like C# tends to work with hard assembly bindings for everything. But what if you want only want to provide an assembly optionally, if the functionality is actually used by the user? In this article I discuss a scenario where dynamic loading and activation made sense for me and show the code required to activate and use components loaded at runtime using Reflection and dynamic in combination.

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• black screen after waking up from suspend

  - by Daniel De Leon

  running 11.10 and on wake up after being suspended (for a long time or 2 seconds, doesn't matter) I am presented with a black screen that just has a purple bar (about the size of the top menu bar). As far as I can tell the system is unresponsive to anything outside of a manual restart by pressing the power button on the tower, after which it starts normally. using the most up to date graphics driver, also tried switching to a different version, nothing. just switched back to Linux and this is really giving me a headache, I would really like this to work. Any help would be greatly appreciated.

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• Routing to a Controller with no View in Angular

  - by Rick Strahl

  Angular provides a nice routing, and controller to view model that makes it easy to create sophisticated JavaScript views fairly easily. But Angular's views are destroyed and re-rendered each time they are activated - what if you need to work with a persisted view that's too expensive to re-render? Here's how to build a headless controller that doesn't render a view through Angular, but rather manages the the view or markup manually.

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• Can find any /.ecryptfs dir to retrieve my encrypted home dir

  - by Roberto de Armas

  At firs sorry for my english, it isn't my native languaje. I've readed some questions similar but no the exactly whith the same problem. I've moved my home directory to a separated partitión (Ubuntu 11.10) following this tutorial http://www.ubuntu-es.org/node/58233 After checking that they were all my files and folders (forgetting that one of dirs was encrypted by ecryptfs) i've installed fedora 16. Well, suprised when in my home folder was an Readme.txt advising me that my folder was unmounted for security reasons and proposing to type in comand line "ecryptfs-mount-Private" (din't work) or make click on labeled icon "acces your private data desktop" (neither din't work). After three days reading all i could find on the internet, i follow The Dustin Kirkland tutorial in http://blog.dustinkirkland.com/2011/04/introducing-ecryptfs-recover-private.html, but any /.ecryptfs was found. I'm sure that the data are somewere (the size of the moved dir is identical to the original one). Any help would by greatly appreciated. Thaks a lot.

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• Something to add to your library...

  - by werner.de.gruyter

  There is a new book in town: The Grid Control Handbook. Featuring an in-depth discussion of what Grid Control is and what Grid Control can do for your IT environment. It starts right at the beginning, and guides you through the all steps of a typical deployment: From the planning phase, to installing, to the strengthening of the environment and finally (most importantly) the maintenance and daily-use of the product. And there are quite a few tips, tricks, workshops and best practices along the way to help you with some very practical day-to-day challenges. For all those using Grid Control, something definitely worth checking out!

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• ETPM/OUAF 2.3.1 Framework Overview - Session 2

  - by Rick Finley

  A number of sessions are planned to review the ETPM (OUAF) 2.3.1 Framework.  These sessions will include an overview of the Navigation, Portals, Zones, Business Objects, Business Services, Algorithms, Scripts, etc.. Session 2 includes a more in depth discusion of Business Objects (BO).  Session 2 specifically covers BO Schema, BO Options, and BO inheritance in more depth.  Click on the link below for Session 2 (52 minutes). To stream the recording:   https://oracletalk.webex.com/oracletalk/ldr.php?AT=pb&SP=MC&rID=70624122&rKey=8a16e59ed3736f1c To download the recording: https://oracletalk.webex.com/oracletalk/lsr.php?AT=dw&SP=MC&rID=70624122&rKey=140a83f63b8fa22a For additional questions, please contact [email protected].

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• keybinding issues with xmodmap across synergy

  - by Rick

  I've got two systems I use across Synergy. On the main one I have a normal keyboard that I swap caps lock and ctrl for. So I do: xmodmap -e 'keycode 66 = Control_L' xmodmap -e 'clear lock' xmodmap -e 'add Control = Control_L' Where keycode 66 is my caps lock key. The trouble is that I can't get this key to act as a control key on the other machine I connect to with synergy. The strange thing is that if I plug a keyboard into the machine, and run xev, the control key there is keycode 37. When I then hit my modified control key (keycode 66 on the master) it's registering as keycode 37 on the remote machine. So according to xev, it should be picking it up as a control keypress. Anyone have any hints on if Synergy is doing something overly helpful for me?

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• Checking out the Helios IIS Owin Web Server Host

  - by Rick Strahl

  During last week's MVP summit Microsoft showed a new light weight, Owin host called Helios, that can run directly on the IIS core without using the ASP.NET Runtime. It's light weight and fast, and offers a glimpse into where Microsoft is heading for building a more nimble and componentized runtime that is bound to be more flexible and agile. In this post I describe how to set up Helios to play around with and some of the implications it brings.

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• Should devs, testers and business users have one unified test script?

  - by Carlos Jaime C. De Leon

  In development, I would normally have my own test scripts that would document the data, scenarios and execution steps that I plan to test; this is my dev test plan. When the functionality has been deployed to Test, testers test it using their own test script that they wrote. In UAT, the business user then tests using their own test plan. In retrospect, it looks like this provides a better coverage, with dev tests having a mix of black and white box testing, while testers and business users focus on black box testing. But on the other hand, this brings up distinct test cases that only are executed per stage (ie. some cases which testers thought of are only executed on Test stage) and it would like the dev missed it, which makes it a finding/bug. Is it worth consolidating the test scripts from the start? Thus using one unified test script, or is it abit difficult to do this upfront?

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• Game software design

  - by L. De Leo

  I have been working on a simple implementation of a card game in object oriented Python/HTML/Javascript and building on the top of Django. At this point the game is in its final stage of development but, while spotting a big issue about how I was keeping the application state (basically using a global variable), I reached the point that I'm stuck. The thing is that ignoring the design flaw, in a single-threaded environment such as under the Django development server, the game works perfectly. While I tried to design classes cleanly and keep methods short I now have in front of me an issue that has been keeping me busy for the last 2 days and that countless print statements and visual debugging hasn't helped me spot. The reason I think has to do with some side-effects of functions and to solve it I've been wondering if maybe refactoring the code entirely with static classes that keep no state and just passing the state around might be a good option to keep side-effects under control. Or maybe trying to program it in a functional programming style (although I'm not sure Python allows for a purely functional style). I feel that now there's already too many layers that the software (which I plan to make incredibly more complex by adding non trivial features) has already become unmanageable. How would you suggest I re-take control of my code-base that (despite being still only at < 1000 LOC) seems to have taken a life of its own?

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• Why is Adobe Air so underrated for building mobile apps?

  - by Marcelo de Assis

  I worked with Adobe Flash related technologies for the last 5 years, although not being a big fan of Adobe. I see some little bugs happening in some apps, but I cannot imagine why a lot of big companies do not even think to use use Adobe Air as a good technology for their mobile apps. I see a lot of mobile developer positions asking for experts in Android or iOS , but very much less positions asking for Adobe Air, even when Adobe Air apps have the advantage of being multi-plataform, with the same app working in Blackberry, iOS and Android. Is so much easier to develop a game using Flash, than using Android SDK, for example. It really have flaws (that I never saw) or it is just some kind of mass prejudgement? I also would like to hear what a project manager or a indie developer takes when choosing a plataform for building apps.

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• How to build MVC Views that work with polymorphic domain model design?

  - by Johann de Swardt

  This is more of a "how would you do it" type of question. The application I'm working on is an ASP.NET MVC4 app using Razor syntax. I've got a nice domain model which has a few polymorphic classes, awesome to work with in the code, but I have a few questions regarding the MVC front-end. Views are easy to build for normal classes, but when it comes to the polymorphic ones I'm stuck on deciding how to implement them. The one (ugly) option is to build a page which handles the base type (eg. IContract) and has a bunch of if statements to check if we passed in a IServiceContract or ISupplyContract instance. Not pretty and very nasty to maintain. The other option is to build a view for each of these IContract child classes, breaking DRY principles completely. Don't like doing this for obvious reasons. Another option (also not great) is to split the view into chunks with partials and build partial views for each of the child types that are loaded into the main view for the base type, then deciding to show or hide the partial in a single if statement in the partial. Also messy. I've also been thinking about building a master page with sections for the fields that only occur in subclasses and to build views for each subclass referencing the master page. This looks like the least problematic solution? It will allow for fairly simple maintenance and it doesn't involve code duplication. What are your thoughts? Am I missing something obvious that will make our lives easier? Suggestions?

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• Which algorithm used in Advance Wars type turn based games

  - by Jan de Lange

  Has anyone tried to develop, or know of an algorithm such as used in a typical turn based game like Advance Wars, where the number of objects and the number of moves per object may be too large to search through up to a reasonable depth like one would do in a game with a smaller search base like chess? There is some path-finding needed to to engage into combat, harvest, or move to an object, so that in the next move such actions are possible. With this you can build a search tree for each item, resulting in a large tree for all items. With a cost function one can determine the best moves. Then the board flips over to the player role (min/max) and the computer searches the best player move, and flips back etc. upto a number of cycles deep. Finally it has found the best move and now it's the players turn. But he may be asleep by now... So how is this done in practice? I have found several good sources on A*, DFS, BFS, evaluation / cost functions etc. But as of yet I do not see how I can put it all together.

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• Accessibility Update: The Oracle ETPM v2.3 VPAT is now available on oracle.com

  - by Rick Finley

  Oracle Tax is committed to building accessible applications.  Oracle uses a VPAT (Voluntary Product Accessibility Template) to document the accessibility status of each product.  The VPAT was created by a partnership of the Information Technology Industry Council (ITI) and the U.S. General Services Administration (GSA) to create a simple document that could be used by US Federal contracting and procurement officials to evaluate a product with respect to the provisions contained in Section 508 of the Americans with Disabilities Act (ADA). The Oracle ETPM v2.3 VPAT is now available on oracle.com:  http://www.oracle.com/us/corporate/accessibility/templates/t2455.html    

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• JavaOne+Develop vs Oracle OpenWorld

  - by Rick Ramsey

  http://cheapoair.wordpress.com/2009/03/24/san-francisco-napa-and-sonoma-a-first-visit/ This year, Oracle OpenWorld will be held Sep 19-23rd in San Francisco. Also this year, JavaOne+Develop will be held Sep 19-23d in San Francisco. How can that be? Simple. Oracle has acquired the city of San Francisco. OK, not all of it. But an awful lot of it. And it didn't actually acquire the city of San Francisco. It just sorta borrowed it. So, Oracle OpenWorld The world's most important developer conferences are creating the world's coolest neighborhood The Zone--San Francisco's Hotel Nikko, Hilton San Francisco, and Parc 55 hotels and the surrounding area--will be dedicated to developers during the week of JavaOne + Develop. Unparalleled education and practical hands-on sessions, engaging activities, exceptional entertainment, and food and drink in the Zone will be exclusively geared toward the developer community converging at JavaOne + Develop. Network, share information, and learn from leading experts in the Java, PL/SQL, rich internet application development, SOA communities, and more. Forget the business casual dress code and golf simulation: The Zone does things the developers' way. See for yourself, September 19 - 23, 2010. Participate in dozens of hands-on labs, including Oracle Database, Oracle Application Express, Oracle WebLogic Server, Java, SOA, .NET, Oracle JDeveloper, Eclipse, Oracle Solaris Studio, and application grid technologies The Develop 2010 call for papers is now closed. Review and selection is under way, and we expect to notify presenters by mid-May, 2010. If the submissions we've received are any indication, you can look forward to an outstanding developer conference this year in San Francisco. Thanks to all of you who contributed papers by the March 21 deadline.

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• Firefox ignore GTK theme for localhost stuff

  - by Mario De Schaepmeester

  I know this is pretty much a duplicate of How can one make firefox ignore my GTK theme entirely?, but the answers on that one are no permanent solution. It works by launching firefox from the terminal. I would like to know a solution that works for every instance of firefox no matter how it was created. There is the possibility to edit the userContent.css file, but the settings you make randomly do not apply to some sites or in some situations, strangely, even with the !important added... I have a dark GTK theme and this results in some textboxes having a black background with black text with a userContent.css that has input, textarea { color: black !important; background-color: white !important; } Update I changed a setting in about:config from true to false, namely browser.display.use_system_colors. Everything appears normal and well now, for one exception: everything that runs on localhost. This includes PHPMyAdmin and a website I am making. I would like to know if there is a solution to this.

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• Connect to new wireless network

  - by Shawn de Wet

  Wireless networking was working perfectly on my old adsl router. Then I moved to a new home that does not have adsl, and the router has been replaced with a new 3G one. I have worked through the following links: Connecting to a wireless network and http://ubuntuforums.org/showthread.php?t=571188 I have set the router from it's default WPA-PSK encryption to WEP encryption and also to No Encryption. But when I get to dhclient -wlan0, I keep getting No DHCPOFFERS received. Yet the 2 windows machines in my home connect fine to this wirelesss network (in all encryption settings). If I try iwlist scan I can see that the wireless network is indeed visible. Where do I start scratching to see where the problem may lie.

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