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  • How do I copy an existing hard disc to a new one so I can boot off the new disc?

    - by Brian Hooper
    I currently have a failing hard drive which is the only hard drive in the machine. I have just bought a new hard drive to replace it, and my plan is to copy the contents of the old drive onto the new one, and then replace the old drive in the machine with the new one. I presumably can't just copy the whole directory structure (or can I)? What do I need to do to manage this, assuming it is possible? Is there a utility to do this for me? (The old drive is hopefully good for a few more hours.) (I hope by this means to keep all the software and configuration files as they are, to avoid having to re-install everything. Can that be done?)

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  • Dealing with blackhat SEO companies and low quality link building competitors [closed]

    - by Mikko Ohtamaa
    I have often faced a case where the competitors of my client use SEO blackhat tactics where they contact a SEO company to do link building for their websites and products. Here is an example of a typical case of a fake blog created only for link building purposes A very low content article http://marshallfab.com/fundus-camera-explained.html in obvious fake blog: no author information, partially machine generated text, all blog posts are solely about link building Following the link you get to the promoted company page http://www.patternless.com/ ... which, unsurprisingly, links the SEO company homepage in the footer text http://www.affordableseofl.com/ ... who are not shy to advertise their Extremely aggressive SEO plan Does Google have any feedback channel where one could submit cases like this, so that Google would punish the link builders? Are there any means to bring these blackhat companies to pushame to damage their reputation?

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  • Impact of variable-length loops on GPU shaders

    - by Will
    Its popular to render procedural content inside the GPU e.g. in the demoscene (drawing a single quad to fill the screen and letting the GPU compute the pixels). Ray marching is popular: This means the GPU is executing some unknown number of loop iterations per pixel (although you can have an upper bound like maxIterations). How does having a variable-length loop affect shader performance? Imagine the simple ray-marching psuedocode: t = 0.f; while(t < maxDist) { p = rayStart + rayDir * t; d = DistanceFunc(p); t += d; if(d < epsilon) { ... emit p return; } } How are the various mainstream GPU families (Nvidia, ATI, PowerVR, Mali, Intel, etc) affected? Vertex shaders, but particularly fragment shaders? How can it be optimised?

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  • 10.10 - Error compiling kernel in iw_ndis.c

    - by chris
    I just wanted to compile a kernel (as described here), but I got this error: ubuntu/ndiswrapper/iw_ndis.c:1966: error: unknown field ‘num_private’ specified in initializer ubuntu/ndiswrapper/iw_ndis.c:1966: warning: initialization makes pointer from integer without a cast ubuntu/ndiswrapper/iw_ndis.c:1967: error: unknown field ‘num_private_args’ specified in initializer ubuntu/ndiswrapper/iw_ndis.c:1967: warning: excess elements in struct initializer ubuntu/ndiswrapper/iw_ndis.c:1967: warning: (near initialization for ‘ndis_handler_def’) ubuntu/ndiswrapper/iw_ndis.c:1970: error: unknown field ‘private’ specified in initializer ubuntu/ndiswrapper/iw_ndis.c:1970: warning: initialization makes integer from pointer without a cast ubuntu/ndiswrapper/iw_ndis.c:1970: error: initializer element is not computable at load time ubuntu/ndiswrapper/iw_ndis.c:1970: error: (near initialization for ‘ndis_handler_def.num_standard’) ubuntu/ndiswrapper/iw_ndis.c:1971: error: unknown field ‘private_args’ specified in initializer ubuntu/ndiswrapper/iw_ndis.c:1971: warning: initialization from incompatible pointer type Can anyone tell me what it means? Googling just came up with a result here on this site, where there was no answer, so maybe now someone knows.

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  • How agile methodologies can be applied in a typical " services " company?

    - by AlfaTeK
    My company is a custom software services company for external clientes, which means our typical project is one in which the contract already states the full budget of the project. Our typical project starts by defining requirements (improving the proposal high-level requirements), then we code the project, test it and ship it. We have an acceptance phase were the client tests the software and in that phase we can usually implement small changes asked by the client, or we charge extra for change requests. In some projects we have intermediate releases so the clients can check the progress of the project and give feedback on it. In summary: something like waterfall... I've followed the "agile" movement for a bit now and I always see it being a good match for a "product" company, or a company building software for an internal client. But are there good stories / advantages on using agile methods in my kind of company/projects? What are your experiences, what do you think about this?

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  • Windows for IoT, continued

    - by Valter Minute
    Originally posted on: http://geekswithblogs.net/WindowsEmbeddedCookbook/archive/2014/08/05/windows-for-iot-continued.aspxI received many interesting feedbacks on my previous blog post and I tried to find some time to do some additional tests. Bert Kleinschmidt pointed out that pins 2,3 and 10 of the Galileo are connected directly to the SOC, while pin 13, the one used for the sample sketch is controlled via an I2C I/O expander. I changed my code to use pin 2 instead of 13 (just changing the variable assignment at the beginning of the code) and latency was greatly reduced. Now each pulse lasts for 1.44ms, 44% more than the expected time, but ways better that the result we got using pin 13. I also used SetThreadPriority to increase the priority of the thread that was running the sketch to THREAD_PRIORITY_HIGHEST but that didn't change the results. When I was using the I2C-controlled pin I tried the same and the timings got ways worse (increasing more than 10 times) and so I did not commented on that part, wanting to investigate the issua a bit more in detail. It seems that increasing the priority of the application thread impacts negatively the I2C communication. I tried to use also the Linux-based implementation (using a different Galileo board since the one provided by MS seems to use a different firmware) and the results of running the sample blink sketch modified to use pin 2 and blink the led for 1ms are similar to those we got on the same board running Windows. Here the difference between expected time and measured time is worse, getting around 3.2ms instead of 1 (320% compared to 150% using Windows but far from the 100.1% we got with the 8-bit Arduino). Both systems were not under load during the test, maybe loading some applications that use part of the CPU time would make those timings even less reliable, but I think that those numbers are enough to draw some conclusions. It may not be worth running a full OS if what you need is Arduino compatibility. The Arduino UNO is probably the best Arduino you can find to perform this kind of development. The Galileo running the Linux-based stack or running Windows for IoT is targeted to be a platform for "Internet of Things" devices, whatever that means. At the moment I don't see the "I" part of IoT. We have low level interfaces (SPI, I2C, the GPIO pins) that can be used to connect sensors but the support for connectivity is limited and the amount of work required to deliver some data to the cloud (using a secure HTTP request or a message queuing system like APMQS or MQTT) is still big and the rich OS underneath seems to not provide any help doing that.Why should I use sockets and can't access all the high level connectivity features we have on "full" Windows?I know that it's possible to use some third party libraries, try to build them using the Windows For IoT SDK etc. but this means re-inventing the wheel every time and can also lead to some IP concerns if used for products meant to be closed-source. I hope that MS and Intel (and others) will focus less on the "coolness" of running (some) Arduino sketches and more on providing a better platform to people that really want to design devices that leverage internet connectivity and the cloud processing power to deliver better products and services. Providing a reliable set of connectivity services would be a great start. Providing support for .NET would be even better, leaving native code available for hardware access etc. I know that those components may require additional storage and memory etc. So making the OS componentizable (or, at least, provide a way to install additional components) would be a great way to let developers pick the parts of the system they need to develop their solution, knowing that they will integrate well together. I can understand that the Arduino and Raspberry Pi* success may have attracted the attention of marketing departments worldwide and almost any new development board those days is promoted as "XXX response to Arduino" or "YYYY alternative to Raspberry Pi", but this is misleading and prevents companies from focusing on how to deliver good products and how to integrate "IoT" features with their existing offer to provide, at the end, a better product or service to their customers. Marketing is important, but can't decide the key features of a product (the OS) that is going to be used to develop full products for end customers integrating it with hardware and application software. I really like the "hackable" nature of open-source devices and like to see that companies are getting more and more open in releasing information, providing "hackable" devices and supporting developers with documentation, good samples etc. On the other side being able to run a sketch designed for an 8 bit microcontroller on a full-featured application processor may sound cool and an easy upgrade path for people that just experimented with sensors etc. on Arduino but it's not, in my humble opinion, the main path to follow for people who want to deliver real products.   *Shameless self-promotion: if you are looking for a good book in Italian about the Raspberry Pi , try mine: http://www.amazon.it/Raspberry-Pi-alluso-Digital-LifeStyle-ebook/dp/B00GYY3OKO

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  • Out of memory on MATLAB

    - by Eric Sánchez
    I'm trying to run a script on matlab_2011a, which calculate same means for a climatology of 50 years. When I started to run the script for all the years it worked fine until the iteration 20th, and then appeared the message: Out of memory. Type HELP MEMORY for your options. Then I used clear v1 v2 v3 ... to clear all the variables inside the function, also i used clear train because i saw it in another forum, and these with the modifications or not, I run again the script (since the 21th iteration), and the result is the same message, but curiously sometimes it run a year and then stop. Any ideas about solving this problem?, what I have to clean to run correctly? (in this matlab version there's not the command memory which maybe could help me).

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  • How-to populate different select list content per table row

    - by frank.nimphius
    Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} A frequent requirement posted on the OTN forum is to render cells of a table column using instances of af:selectOneChoices with each af:selectOneChoice instance showing different list values. To implement this use case, the select list of the table column is populated dynamically from a managed bean for each row. The table's current rendered row object is accessible in the managed bean using the #{row} expression, where "row" is the value added to the table's var property. <af:table var="row">   ...   <af:column ...>     <af:selectOneChoice ...>         <f:selectItems value="#{browseBean.items}"/>     </af:selectOneChoice>   </af:column </af:table> The browseBean managed bean referenced in the code snippet above has a setItems and getItems method defined that is accessible from EL using the #{browseBean.items} expression. When the table renders, then the var property variable - the #{row} reference - is filled with the data object displayed in the current rendered table row. The managed bean getItems method returns a List<SelectItem>, which is the model format expected by the f:selectItems tag to populate the af:selectOneChoice list. public void setItems(ArrayList<SelectItem> items) {} //this method is executed for each table row public ArrayList<SelectItem> getItems() {   FacesContext fctx = FacesContext.getCurrentInstance();   ELContext elctx = fctx.getELContext();   ExpressionFactory efactory =          fctx.getApplication().getExpressionFactory();          ValueExpression ve =          efactory.createValueExpression(elctx, "#{row}", Object.class);      Row rw = (Row) ve.getValue(elctx);         //use one of the row attributes to determine which list to query and   //show in the current af:selectOneChoice list  // ...  ArrayList<SelectItem> alsi = new ArrayList<SelectItem>();  for( ... ){      SelectItem item = new SelectItem();        item.setLabel(...);        item.setValue(...);        alsi.add(item);   }   return alsi;} For better performance, the ADF Faces table stamps it data rows. Stamping means that the cell renderer component - af:selectOneChoice in this example - is instantiated once for the column and then repeatedly used to display the cell data for individual table rows. This however means that you cannot refresh a single select one choice component in a table to change its list values. Instead the whole table needs to be refreshed, rerunning the managed bean list query. Be aware that having individual list values per table row is an expensive operation that should be used only on small tables for Business Services with low latency data fetching (e.g. ADF Business Components and EJB) and with server side caching strategies for the queried data (e.g. storing queried list data in a managed bean in session scope).

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  • Project Euler 20: (Iron)Python

    - by Ben Griswold
    In my attempt to learn (Iron)Python out in the open, here’s my solution for Project Euler Problem 20.  As always, any feedback is welcome. # Euler 20 # http://projecteuler.net/index.php?section=problems&id=20 # n! means n x (n - 1) x ... x 3 x 2 x 1 # Find the sum of digits in 100! import time start = time.time() def factorial(n): if n == 0: return 1 else: return n * factorial(n-1) print sum([int(i) for i in str(factorial(100))]) print "Elapsed Time:", (time.time() - start) * 1000, "millisecs" a=raw_input('Press return to continue')

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  • Why aren't there automated translators from one programming language to another?

    - by serg
    Most programming languages are Turing complete, which means that any task that can be solved in one language can be solved in another one, or even on Turing machine. Then why aren't there automatic translators that can convert programs from any given language to any other language? I've seen couple attempts for two languages, but they always work only on a limited subset of a language and can hardly be used for converting real projects. Is it possible, at least in theory, to write 100% correct translator between all languages? What are the challenges in practice? Are there any existing translators that work?

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  • What is the politically correct way of refactoring other's code?

    - by dukeofgaming
    I'm currently working in a geographically distributed team in a big company. Everybody is just focused on today's tasks and getting things done, however this means sometimes things have to be done the quick way, and that causes problems... you know, same old, same old. I'm bumping into code with several smells such as: big functions pointless utility functions/methods (essentially just to save writing a word), overcomplicated algorithms, extremely big files that should be broken down into different files/classes (1,500+ lines), etc. What would be the best way of improving code without making other developers feel bad/wrong about any proposed improvements?

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  • Domain Name Expired, Will My Backorder Work?

    - by Trent Scott
    I'm interested in a domain name that expired August 9, 2012 and backordered it a few months ago. When I check the status of the domain name, it is listed as "autoRenewPeriod". It has a new expiration date of August 9, 2013, but a Google search indicates that "autoRenewPeriod" means the registrar automatically renewed the domain but has not received payment yet. Does anyone have experience with this? How long will it stay in "autoRenewPeriod" before being released by the registrar? Do I have a good chance of grabbing the domain name?

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  • Identity verification

    - by acjohnson55
    On a site that I'm working on, I'm trying to find ways of enforcing a one-person, one-account rule. In general, we'd like to do this by providing options to authenticate users with third-party services that provide this assurance. For example, it's possible to authenticate with Facebook and check whether the user is considered "verified" by Facebook (which means they must have provided either a phone number or credit card). This is roughly the level of identity verification we require--we're not doing banking or anything like that. But we want to give the user options. My question is, who else, besides Facebook, provides this? (uncertain of the proper SE forum, please comment if there's a better SE site to ask this)

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  • Application qos involving priority and bandwidth

    - by Steve Peng
    Our manager wants us to do applicaiton qos which is quite different from the well-known system qos. We have many services of three types, they have priorites, the manager wants to suspend low priority services requests when there are not enough bandwidth for high priority services. But if the high priority services requests decrease, the bandwidth for low priority services should increase and low priority service requests are allowed again. There should be an algorithm involving priority and bandwidth. I don't know how to design the algorithm, is there any example on the internet? Somebody can give suggestion? Thanks. UPDATE All these services are within a same process. We are setting the maximum bandwidth for the three types of services via ports of services via TC (TC is the linux qos tool whose name means traffic control).

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  • The cost of longer delay between development and QA

    - by Neil N
    At my current position, QA has become a bottleneck. We have had the unfortunate occurence of features being held out of the current build so that QA could finish testing. This means features that are done being developed may not get tested for 2-3 weeks after the developer has already moved on. With dev moving faster thean QA, this time gap is only going to get bigger. I keep flipping through my copy of Code Compelte, looking for a "Hard Data" snippet that shows the cost of fixing defects grows exponentially the longer it exists. Can someone point me to some studies that back up this concept? I am trying to convince the powers that be that the QA bottleneck is a lot more costly than they think.

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  • Drive Online Engagement with Intuitive Portals and Websites

    - by kellsey.ruppel
    As more and more business is being conducted via online channels, engaging users and making them more productive and efficient though these online channels is becoming critical. These users could be customers, partners or employees and while the respective channels through which they interact might be different, these users do increasingly interact with your business through the Web, or mobile devices or now through various social mediums.  Businesses need a user engagement strategy and solution that allows them to deliver targeted and personalized content and applications to users through the various online mediums and touch points.  The customer experience today is made up of an ongoing set of interactions with organizations across many channels, online and offline.  The Direct channel (including sales reps, email and mail) is an important point of contact, as is the Contact Center.  Contact Centers rely on the phone as a means of interacting with customers, and also more now than ever, the Web as well.  However, the online organization is often managed separately from the Contact Center organization within a business. In-store is an important channel for retailers, offering Point-of-Service for human interactions, and Kiosks which enable self-service. Kiosks are a Web-enabled touch point but in-store kiosks are often managed by the head of retail operations, rather than the online organization.  And of course, the online channel, including customer interactions with an organization via digital means -- on the website, mobile websites, and social networking sites, has risen to paramount importance in recent years in the customer experience. Historically all of these channels have been managed separately. The result of all of this fragmentation is that the customer touch points with an organization are siloed.  Their interactions online are not known and respected in their dealings in-store.  Their calls to the contact center are not taken as input into what the website offers them when they arrive. Think of how many times you’ve fallen victim to this. Your experience with the company call center is different than the experience in-store. Your experience with the company website on your desktop computer is different than your experience on your iPad. I think you get the point. But the customer isn’t the only one we need to look at here, as employees and the IT organization have challenges as well when it comes to online engagement. There are many common tools and technologies that organizations have been using to try and engage users, whether it’s customers, employees or partners. Some have adopted different blog and wiki technologies (some hosted, some open source, sometimes embedded in platforms), to things like tagging, file sharing and content management, or composite applications for self-service applications and activity streams. Basically, there are so many different tools & technologies that each address different aspects of user engagement. Now, one of the challenges with this, is that if we look at each individual tool, typically just implementing for example a file sharing and basic collaboration solution, may meet the needs of the business user for one aspect of user engagement, but it may not be the best solution to engage with customers and partners, or it may not fit with IT standards such as integrating with their single sign on tools or their corporate website. Often, the scenario is that businesses are having to acquire multiple pieces and parts as well as build custom applications to meet their needs. Leaving customers and partners with a more fragmented way of interacting with the company. Every organization has some sort of enterprise balancing act between the needs of the business user and the needs and restrictions enforced by enterprise IT groups. As we’ve been discussing, we all know that the expectations for online engagement have changed since the days of the static, one-size fits all website. With these changes have come some very difficult organizational challenges as well. Today, as a business user, you want to engage with your customers, and your customers expect you to know who they are. They expect you to recall the details they’ve provided to you on your website, to your CSRs and to your sales people. They expect you to remember their purchases, their preferences and their problems. And they expect you to know who they are, equally well, across channels, including your web presence. This creates a host of challenges for today’s business users. Delivering targeted, relevant content online is now essential for converting prospects into customers and for engendering long term loyalty. Business users need the ability to leverage customer data from different sources to fuel their segmentation and targeting strategies and to easily set-up, manage and optimize online campaigns. Also critical, they need the ability to accomplish these things on-the-fly, at the speed of the marketplace, while making iterative improvements.  These changing expectations put a host of demands on the IT organization as well. The web presence must be able to scale to support the delivery of personalized and targeted content to thousands of site visitors without sacrificing performance. And integration between systems becomes more important as well, as organizations strive to obtain one view of the customer culled from WCM data, CRM data and more. So then, how do you solve these challenges and meet the growing demands of your users?  You need a solution that: Unifies every customer interaction across all channels Personalizes the products and content that interest the customer and to the device Delivers targeted promotions to the right customer Engages and improve employee productivity Provides self-service access to applications Includes embedded in-context social   So how then do you achieve this level of online engagement, complete customer experience and engage your employees? The answer: Oracle WebCenter. If you want to learn how to get there, we encourage you to attend this webcast on Thursday Drive Online Engagement with Intuitive Portals and Websites, where we'll talk about how you are able to transform your portal experience and optimize online engagement -- making your portals more interactive and more engaging across multiple channels. Register today!

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  • America The Vulnerable

    - by Naresh Persaud
    At the Executive Edge this week, Joel Brenner shared his perspective on the state of cyber-security. Today our most critical military and corporate secrets are under attack. In his presentation, Joel shared his perspective on how organizations can can better prepare for the changing security climate. The amount of state sponsored espionage has highlighted weaknesses in our national security infrastructure. The Internet was primarily intended to provide a means of collaboration for non-commercial entities. Today it is the backbone of our digital commerce and digital experience and it was not designed to secure the activities and data we share today.  Check out "America The Vulnerable" and learn more. 

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  • AdWords test with two different agencies - can I track their results without them being aware of each other

    - by Drew
    Currently going through a process of testing two AdWords ppc providers at the same time from two separate AdWords accounts. However they will require access to my GA account for linking and ecommerce tracking. Which means that they will be able to see each others results. I dont want this; Is it possible to set up GA so that; Company A only sees Adwords results associated to their AdWords management via GA Company B only sees Adwords results associated to their AdWords management via GA And each company never sees the other company's Adwords results? 100 positive karma points to anyone who can shed some light on this. Cheers.

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  • A Good Time to Upgrade Your PeopleSoft Portal

    - by matthew.haavisto
    Extended support for PeopleSoft Portal Solutions 8.8 will end in March 2011. This means that Oracle is not obliged to provide support to Portal Solutions customers running 8.8 after that time. If you are on an older version, you should consider moving to our current release--9.1. Not only will you continue to receive support, but you will benefit from the many enhancements of the new release, including all the Enterprise 2.0 capabilities. (Note: The PeopleSoft Enterprise Portal has been rebranded. It is now called the PeopleSoft Applications Portal.)

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  • Setup shortcut keys not working

    - by Tim
    In my Ubuntu 12.04, in keyboard settings, I didn't find a shortcut key for restarting X, so in "Customer Shorcut", I set up Ctrl+Alt+Backspace for command sudo restart lightdm. But after that the shortcut doesn't work. Is it because it requires root privilege? Also I have a SysRq key on my keyboard, which I think to be the "Magic SysReq Key". My SysRq key is shared with PrtSc key (for screen shoot), and is in blue which means I have to press Fn key at the same time to invoke SysRq instead of PrtSC. But every time I press Fn+SysRq, it always shoots a photo of the screen, same as just hitting PrtSc i.e. without hitting Fn. I wonder how to use the Magic SysReq Key? Does it mean the shortcut has not been linked to any command that is supposed for Magic SysReq Key yet? PS: My laptop is Lenovo T400 and OS is Ubuntu 12.04. Thanks!

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  • What does the English word "for" exactly mean in "for" loops?

    - by kol
    English is not my first language, but since the keywords in programming languages are English words, I usually find it easy to read source code as English sentences: if (x > 10) f(); = "If variable x is greater than 10, then call function f." while (i < 10) ++i; = "While variable i is less than 10, increase i by 1." But how a for loop is supposed to be read? for (i = 0; i < 10; ++i) f(i); = ??? I mean, I know what a for loop is and how it works. My problem is only that I don't know what the English word "for" exactly means in for loops.

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  • Music server + Banshee

    - by slosd
    I'm currently trying to figure out some kind of set-up for my music collection. The music collection is located on my "main PC" and I'm using Banshee to play/manage the music. Since I'm often at a different location where I use my laptop I have a FTP server running on my main PC, use curlftpfs to mount the music in /home/username/Music and sync the Banshee DB/configuration via Dropbox. The problem at the moment is that Banshee skips songs very often when the connection is a little slower. I've been looking at some servers like Ampache but they are not really an option since they don't let me use Banshee (which means I have no ability to change metadata or rate songs). Syncing the whole collection to my laptop isn't an option either because of its size. It would be great if you had some ideas how to make my current set-up more reliable or maybe know an alternative.

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  • Unable to install Nvidia drivers

    - by Tazzer
    a few days ago I installed ubuntu 11.10 on my friends computer. Despite all of our efforts we are unable to open the default unity and it will only open the 2d interface. I have been told in the IRC chat room that we need to install the graphics card drivers(nvidia geforce 420.) When I check the additional drivers app it doesn't show any to install. I tried installing the ones from the nvidia website but no luck, I also forgot to mention. I don't know if it means anything but he has a 64 bit computer and it is ubuntu 11.10 64bit.

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  • Getting solutions off the internet. Bad or Good? [closed]

    - by Prometheus87
    I was looking on the internet for common interview questions. I came upon one that was about finding the occurrences of certain characters in an array. The solution written right below it was in my opinion very elegant. But then another thought came to my mind that, this solution is way better than what came to my mind. So even though I know the solution (that most probably someone with a better IQ had provided) my IQ was still the same. So that means that even though i may know the answer, it still wasn't mine. hence if that question was asked and i was hired upon my answer to that question i couldn't reproduce that same elegance in my other ventures within the organization My question is what do you guys think about such "borrowed intelligence"? Is it good? Do you feel that if solutions are found off the internet, it makes you think in that same more elegant way?

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  • Sharing Authentication Across Subdomains using cookies

    - by Jordan Reiter
    I know that in general cookies themselves are not considered robust enough to store authentication information. What I am wondering is if there is an existing design pattern or framework for sharing authentication across subdomains without having to use something more complex like OpenID. Ideally, the process would be that the user visits abc.example.org, logs in, and continues on to xyz.example.org where they are automatically recognized (ideally, the reverse should also be possible -- a login via xyz means automatic login at abc). The snag is that abc.example.org and xyz.example.org are both on different servers and different web application frameworks, although they can both use a shared database. The web application platforms include PHP, ColdFusion, and Python (Django), although I'm also interested in this from a more general perspective (i.e. language agnostic).

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