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• Why are there so few Wireless N Dual Band adapter PCI cards, only USB adapters instead?

  - by daiphoenix

  There has been several Wireless N Dual Band routers/APs out in the market for quite some time now, and there are several Wireless N Dual Band USB adapters out there. But as for PCI/PCI-X card adapters, there seems to be only one (the Linksys WMP600N). Why is that? I find it very strange. Is it because the USB adapters are easier to install, and can be used on multiple computers? But if so, why isn't it the same case with single band (2.4 Ghz) wireless N adapters? Because for these ones there as many PCI card adapters as there are USB adapters. Also, can the USB adapters, despite the lack of external antenna, offer the same level of performance as a card with external antennas?

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• Extend university wifi network

  - by asfasdoiuh ouhouhouh

  i live in a university campus and i can get wifi signal on the outside of my window but not in the house. The solution i use at the moment is a usb wifi dongle outside connected to my laptop but the lack of an internal antenna make the connection quite unreliable at times. So i was trying to find another solution to improve the reception of my network. One idea is to setup a router on the outside (in a place with stronger signal) and redirect the connection inside the house with an ethernet cable but the problem is that our Uni Wifi is managed by a capitve portal (BlueSocket with DNS redirection to login page) and the authentication has to happen on the mac address that connect to the net (so the client appliance in this case). If I use a router with Mac-Clone capability i will be able to be redirected trough the captive portal on my laptop computer and login from there or i need to setup my router to fill in the login page by itself? There are other hardware/software solutions i can use to get what i want?

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• Understanding interfaces [closed]

  - by user985482

  Possible Duplicate: When to use abstract classes instead of interfaces and extension methods in C#? Why are interfaces useful? What is the point of an interface? What other reasons are there to write interfaces rather than abstract classes? What is the point of having every service class have an interface? Is it bad habit not using interfaces? I am reading Microsoft Visual C# 2010 Step by Step which I feel it is a very good book on introducing you to the C# language. I have just finished reading a chapter on interfaces and although I understood the syntax of creating and using interfaces I have trouble of understanding the point on why should I use them? Correct me If I am wrong but in an interface you can only declare methods names and parameters.The body of the method should be declared in the class that inherits the interface. So in this case why should I declare an interface if I am going to declare the entire method in the class that inherits that interface? What is the point? Does this have something to do with the fact that a class can inherit multiple interfaces?

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• How to duplicate a backup set from one media server to another

  - by MathematicalOrchid

  I really honestly can't figure out how to do this. It's easy enough to open Backup Exec and tell it to duplicate the data on one local device onto another local device. What I cannot figure out how to do is make it duplicate data from one local device to a remote device. I can connect to the remote BE server, but then I can only access the remove devices. I can connect to the local BE server, but then I can only access the local devices. I can't figure out how the heck to get access to both local and remove devices simultaneously. Symantec Backup Exec 12.5 for Windows, in case it matters.

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• How can I get data off of a damaged thumb drive?

  - by Lord Torgamus

  A guy I work with just came by to ask me about a damaged thumb drive/USB flash drive. Apparently his son dropped it on a hard surface and it won't power up anymore. They've tried plugging it into multiple machines without success, even though each port they tried was able to power other USB devices. He knows it's not a lost cause because a local tech store is offering to recover the data for $500, but he says they're not worth that much. I figured someone on SU would have an idea about this; he doesn't care about using the drive in the future, just wants to salvage a few files that would be a pain to recreate. Is this possible without advanced equipment, and if so, how? He said he already tried the advice on the Internet about typing in different drive letters and such, but that failed because there was no power going to the drive. He also said that he opened the case up at one point, but I'm not sure what, if anything, he did inside.

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• HTTP Live Streaming Broadcast

  - by user761389

  I'm designing an app for streaming video from a device (e.g. iPhone) via a server to one or more devices and have been researching Apples HTTP Live Streaming protocol. One thing that isn't clear is whether it is possible to stream live video (with audio) to the server and then have it streamed simultaneously in real time to the client devices. From reading the documentation and technical notes from Apple it seems like the index file needs to be created before the segmented video files can be served to a client. Is this right? If so maybe HTTP Live Streaming isn't suitable in this case, what other technologies or software should I consider? Thanks

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• Asus A8V overcurrent

  - by user139710

  This is not as much as a question as it is a note to those out there that upgrade their motherboards with better processors and the like. Here's my story. Recently I upgraded my processor. System specifications: • Asus A8V Deluxe • 4GB RAM • ATI Radeon 3870 AGP graphics card (I believe that's it) Anyway, I decided to put a dual core Opteron 180 in this rig, but the problem was that I needed to update the BIOS to V-1017, and not knowing the consequences, I went up to the Asus site and got the newest, the latest and the greatest, 1018.002 thinking that it was the best for this board, however it wasn't. I used the Asus EXFlash, which makes life a lot easier, flashed the BIOS and all of a sudden I start getting this message: USB overcurrent protection, system shutting down in 15 seconds to protect your system. WELL SHIT... This is a new one on me... I read the blogs, all the posts on this thing, and did all that everyone else did to correct the problem, but nothing helped. So i decided to start from square one, went back to Asus and looked at the BIOS download... OMG... IT WAS A BETA. So, I downloaded the update that was suggested 1017< and installed it and wouldn't you know, it took care of the problem, no more USB overcurrent protection, no more crashing. I write this today to let you all know about this, just in case you have an issue such as this. Well there you all go. Fly safe and eat your vegetables.

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• How do I configure namecheap for "arbitrarily-nested" wildcard subdomains?

  - by rabidsnail

  I'm trying to set up something like nyud.net, where any arbitrary chain of subdomains resolves to the same CNAME record (which in my case points to an amazon elastic load balancer). Ex: www.gogle.com.nyud.net:8080 points to one of their cache servers, which looks at the HOST header and returns www.google.com. I'm using namecheap as my dns host. Adding a CNAME record for *.mydomain.com doesn't seem to do anything (nslookup gives NXDOMAIN for all subdomains). What do I have to do to set this up? Do I have to use something fancier than namecheap (like route53)?

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• Verifying Time Machine backups

  - by jtimberman

  I'm preparing my system for a Snow Leopard upgrade, and I prepare for the worst case scenario: full reinstall and restore. I would like to verify that my Time Machine backups are valid, and will restore correctly. My Time Machine backups go to a Linux server running Netatalk, and the backups complete successfully. How do I do a test restore to an alternative location, or otherwise verify my data without overwriting any existing files? Do I need to save anything in particular externally to make sure I can access the backups if I have to reinstall from scratch?

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• Choosing an open source license such that maximum value is added to a startup

  - by echo-flow

  There are many companies that produce open source software products, and many business models that these companies can use. I'm particularly interested in companies like 280 North, the company behind Objective-J and Cappucino frameworks. My understanding of this organization's business model is that they: worked to develop a tool which added significant value to developers, released the tool under an open source license, built a community around the tool (which was helped by the project's open source licensing), created interesting demos illustrating the project's value All of these things added value to the project, and the company that owned it. Finally, 280 North was sold to Motorola. My question has to do with the role of software licensing in this particular business model. 280 North licensed their software projects under the LGPL, which gave them some proprietary control over how the project could be used. I believe that the LGPL is what's known as a "weak copyleft" license, meaning that the project can be linked to, without the linking code also being licensed under the LGPL; but software derived directly from the project would need to be licensed under the LGPL. For web-oriented libraries in particular, weak copyleft, or non-copyleft licensing seems to be quite common; I can't think of a single example of a popular or well-known web-oriented library that is licensed under the GPL (or AGPL). The question then, is, how much value would a weak copyleft license like the LGPL add to a software venture like 280 North, versus a non-copyleft license, such as the BSD license or the Apache Software License? I'd really appreciate any insight anyone can offer into this, but I'd be most interested in answers that can cite other companies as case studies or examples.

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• Moviebarcodes Showcases Entire Movies as Frame-based Barcodes

  - by Jason Fitzpatrick

  If you’ve ever wanted a chance to look at at an entire movie in a single glance, here’s your chance. Moviebarcodes shares mock-barcodes generated by turning each frame of a movie into a thin stripe, offering a glimpse into the color choices and shot lengths in popular movies. The barcode seen above was generated from The Matrix; you can see where the green indicates scenes that were shot inside the matrix and thus given a subtle green tint. In the barcode below, generated from the movie Pleasantville you can see the transition in the movie between the color and black and white scenes. In the case of Pleasantville, elements of the black and white world turning to color represent pivotal moments in the plot development which are now neatly mapped out below: Check out the hundreds of barcodes at the link below; you can even order prints of your favorite movies. Find a great rendering in the mix? Share a link in the comments below. Moviebarcodes [via Cool Inforgraphics] How to Create an Easy Pixel Art Avatar in Photoshop or GIMPInternet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• Recursion in F#

  - by MarkPearl

  Things are slowly coming together – I was able to look at a bit of F# code and intuitively know what it was going to do (yay)… So today I saw a blog post by Bob Palmer on Fibonacci numbers in F# which inspired me to look at bit into recursion. First the C# example… class Program { public static void CountDown(int n) { switch (n) { case 0: Console.WriteLine("End of Count"); break; default: Console.WriteLine(n); CountDown(n-1); break; } } static void Main(string[] args) { CountDown(10); Console.ReadLine(); } }   In F#, the equivalent would look something like this… open System let rec CountDown n = match n with | 0 -> Console.WriteLine("End of Count"); | n -> Console.WriteLine(n); CountDown (n-1); CountDown 10 Console.ReadLine()   Pretty simple stuff. With F# you when making recursive calls you need to explicitly declare that the function is recursive with the “rec” keyword. Otherwise the code is pretty easy to read and self explanatory.

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• EDQ Technical Enablement for OPN (Prague - June 17-19)

  - by milomir.vojvodic

  Oracle Enterprise Data Quality (EDQ) Technical Enablement and Partner Training Trusted Data for Your Enterprise Applications Oracle Enterprise Data Quality helps organizations achieve maximum value from their business-critical applications by delivering fit-for-purpose data. These products also enable individuals and collaborative teams to quickly and easily identify and resolve any problems in underlying data. With Oracle Enterprise Data Quality, customers can identify new opportunities, improve operational efficiency, and more efficiently comply with industry or governmental regulation. Oracle Enterprise Data Quality is designed to serve as a very channel friendly platform to OPN.  This means that pre-built extensions, components and even complete business solutions can readily be built and shared.  This allows our customers/partners to be highly efficient in how they deploy custom business solutions, but also allows our partners to develop specialized components, domain knowledge and even complete business solutions. Training is suitable for: · Database administrators · Architects · Technical staff Objectives of the training: After completing this course, participants should: · Have an understanding of the core functionality of EDQ across profiling, auditing, transforming, parsing and matching data · Be able to describe some of the key capabilities and benefits delivered by EDQ · Be able to create and run standalone EDQ processes and jobs · Be ready to start working with data from customers and (with practice) be able to demonstrate EDQ to customers Agenda 17th June Fundamentals For Demoing (Profile, Audit, Transform and More) Profiling Auditing Transforming Writing and exporting data Jobs and scheduling Publishing, packaging and copying EDQ processes Introduction to the Customer Data Extension Pack Realtime Processing via Web Services The Server Console Run Profiles Data Interfaces Sampling Publishing metrics to the Dashboard Users and security 18th June Matching Matching overview Basic matching configuration Matching rule hierarchies Clustering Merging Reviewing possible matches Outputting Match Data Case study 19th June Address Verification Address Verification Overview Configuration Accuracy Flags Parsing Parsing Overview Phrase profiling Tailoring a CDEP Parser Base Tokenization Classification Reclassification Selection Resolution Register Here Don’t miss this FREE event. Space is limited. Oracle University V Parku 2294/4 148 00 Praha 4 17.6. – 19.6. 2014 09:00 a.m.– 17:30 p.m.

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• How do I configure the Google Chrome / Chromium address bar to perform a search instead of trying to access a file on the local file system?

  - by Daniel Kauffman

  How do I configure the Google Chrome / Chromium address bar to perform a search instead of trying to access a file on the local file system? I would like to be able to enter a file name in the address bar and to see Google search results for that file name similar to what I would see if I searched for the file name using something like https://www.google.com/#q=/path/to/interesting/file I am able to disable the file scheme using either of the following policy settings: "DisabledSchemes": ["file"], Which has been deprecated in favor of: "URLBlacklist": ["file://"], But in either case Google Chrome / Chromium continues to auto-detect that a file name was entered, automatically prepends the file scheme to the file name, and then reports that the webpage is blocked.

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• Laptop white screen on power-up. Still displays via HDMI output

  - by Inno

  my wife's laptop recently started displaying a white screen. It doesn't show post or anything, just a white screen when it's powered on. However, it works normally with HDMI output to our television. I took it apart and fiddled with both ends of the display cable, but I either didn't fiddle correctly or that's just not the problem. I also noticed that the screen won't turn off anymore when the laptop is closed. Is there a name for the mechanism that controls this function, so I can try and locate it? My guesses are that the problem lies with the screen itself or the display cable, but I'm curious if there's anything else I might be overlooking. Also of note is that the left hinge is partially broken. The corner of the plastic computer case broke off, so the hinge is exposed and doesn't stay in place. I've tried holding it in place, wiggling it around, tapping various parts of the computer, but the white screen remains.

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• SQL Bits 7 - 30th September - 2nd October 2010 in York

  In case you haven't heard we are planning the next SQL Bits event, and today we have released the agenda for Friday & Saturday, a total of 50 sessions covering all aspects of SQL Server with a great selection of speakers. http://www.sqlbits.com/information/Agenda.aspx From our recent announcement - ...SQLBits 7 will take place over three days from Thursday September 30th to Saturday October 2nd in York. Day one will be a training day, featuring in-depth full day seminars by leading SQL Server professionals such as Chris Testa-O’Neill and Chris Webb (see http://www.sqlbits.com/information/TrainingDay.aspx for more details); day two will be a deep-dive conference day with advanced sessions delivered by the best speakers from the SQL Server community; and day three will be the traditional SQLBits community conference day, with a wide range of sessions covered all aspects of SQL Server at all levels of ability. There will be a charge to attend days one and two, but day three, Saturday October 2nd, will as usual be completely free to attend allowing everyone to attend and experience a great day of training even if they have no training budget. Full details available at http://www.sqlbits.com.

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• No display but video card fans spins

  - by Marc

  Since I moved my computer there's no display when I plug my screen in the video card but works fine in the mother board. I tried reseting the cmos, but I still have the same problem. The fans are spining and there's a light from the card. I tried the DVI ports and the HDMI Here's my build. I have it for 2 months and everything was working fine. Do you think it's the video card? Asus p8z68-v pro gen3 Intel i7 2600k 120 GB OCZ Agility 3 16 GB RAM Blue Corsair DDR3 Asus GTX 570 H80 Corsair liquid cooling XFX PRO750W 80Plus bronze power supply EDIT That's why And I can't push more cause the card is on this Thank you everyone! I fixed it by pushing the mobo from the other side of the case and now it fits.

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• How do I disable automatic updates on OpenSUSE 12.2

  - by MathematicalOrchid

  For reasons unknown, OpenSUSE seems to have half a dozen different places that mention auto-update. Is there a way I can definitely, permanently, irreversibly disable auto-update so that new software will never, ever, under any circumstances, be installed? Ideally I want to prevent the OS from even connecting to the Internet to see if any updates are available. I've unchecked half a dozen things, but I'm still getting alerts telling me updates are available. I do now want updates! I can't believe this is so hard to turn off... In case it makes any difference, OpenSUSE 12.2 with a GNOME desktop.

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• Oracle Partner Days and Oracle Days are coming to an EMEA city near you!

  - by Javier Puerta

  Oracle Partner Days A new round of Oracle Partner Days is coming to a large number of European cities. These events are exclusive for Oracle partners and will deliver to you real Business return on your OPN membership.You will hear the business opportunities coming from the adoption of the entire Oracle stack, the latest products value propositions and related sales strategy and be able to connect directly with Oracle executives and find new business opportunities with other partners in your region.The EMEA Oracle Partner Days are Local/Regional live events targeting the key contacts in sales and consultancy delivering Oracle strategy, engaging around the several perspectives of the Oracle portfolio, executive keynotes and deep dive Business content-related breakout sessions. The first city will be Frankfurt, on Oct. 29. Check the full list to find an Oracle Partner Day in a city near you. Oracle Days Oracle Days will be hosted after Oracle OpenWorld across EMEA, along October and November. By attending an Oracle Day, customers and partners can: Learn about how to leverage the power of the Oracle stack, by hearing customer case studies about successful business transformation, and by following cross-stack solution tracks within the agenda Discuss key issues for business and IT executives in cloud, big data, social, and mobile solutions, and network with peers who are facing the same challenges Meet Oracle experts and watch live demos of new products Get the latest news from Oracle OpenWorld. See full calendar and cities here

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• Can I take a HDD in Raid1 and plug it straight into a different machine?

  - by jacko

  I would assume that I can just take my HDD out of my NAS (in raid1 mirror) and plug it into another enclosure and have it work off the bat but I'd like to make sure... Any ideas? Edit: My current setup is a Netgear ReadyNAS in (hardware) raid1. I'm hoping to replace this with a home theatre type PC (possibly running Ubuntu), and would like to migrate my data without having to do a bulk transfer over my network between the 2 machines. Can anyone confirm the case for the Netgear ReadyNAS?

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• How can I check myself when I'm the only one working on a project?

  - by Ricardo Altamirano

  I'm in between jobs in my field (unrelated to software development), and I recently picked up a temporary side contract writing a few applications for a firm. I'm the only person working on these specific applications. Are there ways I should be checking myself to make sure my applications are sound? I test my code, try to think of edge cases, generate sample data, use source control, etc. but since I'm the only person working on these applications, I'm worried I'll miss bugs that would easily be found in a team environment. Once I finish the application, either when I'm happy with it or when my deadline expires, the firm plans to use it in production. Any advice? Not to use a cliche, but as of now, I simply work "to the best of my ability" and hope that it's enough. Incidentally, I'm under both strict NDA's and laws about classified material, so I don't discuss the applications with friends who have actually worked in software development. (In case it's not obvious, I am not a software developer by trade, and even my experience with other aspects of information technology/computer science are limited and restrained to dabbling for the most part).

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• Boundary conditions for testing

  - by Loggie

  Ok so in a programming test I was given the following question. Question 1 (1 mark) Spot the potential bug in this section of code: void Class::Update( float dt ) { totalTime += dt; if( totalTime == 3.0f ) { // Do state change m_State++; } } The multiple choice answers for this question were. a) It has a constant floating point number where it should have a named constant variable b) It may not change state with only an equality test c) You don't know what state you are changing to d) The class is named poorly I wrongly answered this with answer C. I eventually received feedback on the answers and the feedback for this question was Correct answer is a. This is about understanding correct boundary conditions for tests. The other answers are arguably valid points, but do not indicate a potential bug in the code. My question here is, what does this have to do with boundary conditions? My understanding of boundary conditions is checking that a value is within a certain range, which isn't the case here. Upon looking over the question, in my opinion, B should be the correct answer when considering the accuracy issues of using floating point values.

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• When does a programmer know when a new job is not right?

  - by Mysterion

  I believe that the interview process is a selling of both parties - what can the employee offer the employer and vice versa. Assuming an individual has been careful in selecting their new employer (via thorough questioning in the interview process), however when they arrive at the job they find the employer has not been honest about certain aspects of the job. Examples of this dishonesty could include: The employee making it clear that technical excellence is an important factor, which is promised by the employer, but is not fully delivered or a good technical structure does not exist. The employee states they want to work on well architected and short (lets say less than 1 yr) long projects, yet when they start they find they are placed on a poorly architected older project. The employee being told of a pair programming environment to get him up to speed on the project, but being left to his own devices/questioning on arrival. The employee is promised a culture that encourages innovation and technical excellence but finds that this is not the case (eg. using technology for knowledge retention is laughed at). I know that a lot of famous developers feel that you make the place you work at. Is it realistic for a new employee with limited experience in the industry (say less than 5 years) to be able to join the company and change attitudes or even challenge the employer on the perceived dishonesty? Should they stay in this job or cut their losses?

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• Why does booting from a 64 bit Win 8 USB install work on a 32 bit laptop?

  - by Arabella

  I upgraded a 64 bit Windows 7 laptop to Windows 8 through the Upgrade Assistant, creating a bootable USB without any problems. I installed it successfully. Before I purchased an upgrade for my 32 bit Windows 7 laptop, I decided to boot from the USB with the 64 bit ISO to see what happened. The Windows 8 install screen came up with all the options. Should it not have detected that the laptop is 32 bit and therefore the install should have given an error? I cancelled the install before it did anything, but now I want to know if I need to download the iso again after purchasing the upgrade on my 32 bit laptop? I've read the answers to this question, which confirms what is said in this article - a 32 or 64 bit iso will be downloaded depending on the hardware of the computer you are upgrading. If that is the case, then why did it boot into the install screen?

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• Best idea dataserver serving small pictures 40 ko

  - by Nicolas Manzini

  I'm designing the server structure for my application in case things go well. I have one server DB connected to multiple server who process connections. All those with lots of RAM and fast processors. (still looking for a way to use the multithread because now it's dumb apache php... so loooots of ram needed). Upon an answer from those servers, the client can then connect to another server to retrieve pictures using the address he previously got from the db. Is it a good idea to have one database server with let's say nginx and ssd disk having to send all pictures to everybody? or should I have multiple server accessing to a shared ssd disk drive or multiple disk updating each other? Also should I put a lot of RAM on the database server? because probably there wont be a picture more popular than another.

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