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• How can I compile an IP address to country lookup database to make available for free?

  - by Nick

  How would I go about compiling an accurate database of IP addresses and their related countries to make available as an open source download for any web developer who wants to perform a geographic IP lookup? It seems that a company called MaxMind has a monopoly on geographic IP data, because most online tutorials I've seen for country lookups based on IP addresses start by suggesting a subscription to MaxMind's paid service (or their less accurate free 'Lite' version). I'm not completely averse to paying for their solution or using the free one, but the concept of an accurate open source equivalent that anyone can use without restriction appeals to me, and I think it would be useful for the web development community. How is geographic IP data collected, and how realistic is it to hope to maintain an up-to-date open version?

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• How do I modify the noacpi option?

  - by Sagar Ratnakara Nikam

  I am new to ubuntu and have stared using it since a week. I installed ubuntu server 11.10 on a VM created using VMWare player. Once installed, i tried to install ubuntu desktop using sudo apt-get install --no-install-recommends ubuntu-desktop Now I am unable to boot and i get the following error *PulseAudio configured per-user session After this, nothing happens and the ubuntu server does not boot. I read in another Q&A, the same problem and the solution. Just Installed a CLI system then ubuntu-desktop, does not boot automatically My question is how to modify noacpi option. How do i get into the boot for the ubuntu server? I have read on the net that by hitting the shift button, we can get into the boot options. I tried that, but no success, probably since i am running ubuntu on VMWare Player. Please guide me on how to solve this problem

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• Are code screening services worthwhile?

  - by Robert Klubenspies

  I've seen websites that screen programmers by their ability to write code. It's a service that you enter a programming question into and then send out a link. Job candidates program their solution to the question as they are timed and recorded. The person who posted the question can then playback a video of their candidate programming the script. This video allows them to see how quickly and neatly their job candidate can code. Are these types of services worth it? What caveats and hangups are there to using such things to screen potential hires?

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• 3D RTS pathfinding

  - by xcrypt

  I understand the A* algorithm, but I have some trouble doing it in 3D to suit the needs of my RTS Basically, in the game I'm making, there will be agents with different sizes of OBB collision boxes. I can use steering behaviours for avoiding other agents, so I don't need complete dynamic pathfinding. However, there is a problem because different agents have different collision geometry, and structures can be placed in almost any place. This means that there might be a gap between two structures where some agents can go through and some can't. A solution I have found to this problem is to do a sweep of the collision geometry of the agent from start node of the edge the pf algorithm is currently testing, to the end node of that edge. But this is probably a bit overkill since every edge the algorithm tests would also have to create and test with a collision geometry sweep. What are some reasonable approaches to this problem? I should mention that I'd prefer not to use navmeshes, I prefer waypoints because my entire system is based on it atm.

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• What scripts get run on session start and end?

  - by maaartinus

  I want to mount and unmount an encrypted partition just like ecryptfs works with the home partition. Where can I put my commands so that they get executed upon session start and session end (the important part is the unmounting when I log out). UPDATE: For the session start I'm using .gnomerc and it does what I want. For the session end I've found no solution. I had a look at the sources of ecryptfs and it looks quite complicated. It's a pity that nobody thought about creating something analog to .bash_logout.

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• Refactoring While Programming

  - by Kirby

  When posed with a problem, particularly when it is complicated in nature, I try to take some time to think about the approach I am going to take to solve the problem. Despite this, what often happens is, as I am programming the solution, I start to think of details of the problem that I missed, and I adjust the code accordingly. What results is a mess of code that needs to be refactored. I want to "refactor as I go," but while it sounds easy enough to do, I have a really hard time doing it. When the detail that I missed is small, it is tempting to make a small update to my design, rather than erase what I've already written and write it the way it is supposed to be. It sounds like a question with an obvious answer, but are there any techniques to use to better "refactor as you go"? I know that this is a good principle, but I fail with it time and time again.

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• Rules of Holes #3 -A Better Shovel is NOT the Answer!

  - by ArnieRowland

  You stopped digging. You looked around and saw that you were still in the Hole. You needed to get out. AHA! Problem solved, you thought. You'll just get a better and more efficient shovel! Sorry, I have to tell you that switching to a more efficient shovel is unlikely to help you get out of the Hole. Yes, your resumed digging may be faster, more directed, and even well planned and articulated. But you will still be in the Hole, and digging. And that's just not the solution. A new process (scrum,...(read more)

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• Ubuntu 11.10 to 12.04 results in loss of N network capability - how to restore?

  - by user74273

  On Ubuntu 11.10, I had zero issues with N network detection and speed. I cannot remember whether the old driver was iwlagn or iwlwifi. This was with Ubuntu repository Linux kernel 3.0.0-22. Upon upgrading to Ubuntu 12.04, iwlwifi is the available driver and while it detects N networks, upon connection, the speed is cripplingly low and DNS look-ups do not occur (impossible to browse). This is with Ubuntu repository Linux kernel 3.2.0-26. Please note that the 11n_disable flag for the iwlwifi module cannot work for me as I require N network access. Is there another solution? Perhaps, is there a way to easily patch the new kernel with the old wireless module (just copy-and-paste the iwlagn module into the new kernel source and re-compile)? Relevant hardware specs: Dell Inspiron N5110 Network Adapter: Intel® Centrino® Wireless-N 1030

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• Webcast Reminder: SANS Institute Product Review of Oracle Identity Manager 11R2 September 27th @ 9am PT

  - by B Shashikumar

  Join the SANS Institute and Oracle this Thursday (September 27th) for a product review of Oracle Identity Manager 11gR2. Recently, Dave Shackleford from the SANS Institute conducted a review of the 11g R2 release of Oracle's industry leading user provisioning solution, Oracle Identity Manager. On  this webcast, Dave will present his findings and experiences using the product.  Attendees will also get an opportunity to hear about the latest trends driving the user provisioning market, learn from real world deployment scenarios and get all their Identity Management questions answered. If you haven't already registered - register here.

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• Is there an easy way to (temporarily) disable the display timeout?

  - by Izzy

  In KDE 3.5 there was the powermanager plugin for the kicker panel, where one could easily switch between different profiles. So normally, I want the display to go to sleep after, say, 10 minutes of user inactivity. But when I watch a video, this should not happen. I know I could go via the KDE launcher, settings, powermanager, and change the setting. But this is too complicated for daily use. I also know there are those activities. But I don't want to change background etc., just the display timeout. Furthermore, when I tried this, many of the open apps simply crashed and got restarted. I simply don't like this approach. Preferably, it would be something to plug-in to the panel, which opens a menu to select the profile -- as it was with KDE 3.5. Is there a similar solution I missed?

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• Can not Load Type - Starting the ASP.NET Web Site Admin Tool

  A beginner emailed me last night and I had forgotten about this little ditty ! When you create a NEW project and immediately try to run the Web Site Administration Tool you will get this error. The solution is easy BUILD FIRST ! I remember being very confused the first time I got this :) ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Sharing ideas without risk of leaking

  - by eversor

  As freelancers, we meet somewhere and chat about a new idea for a project, brainstorm etc. Up to this point, we have taken notes of the ideas, but we would like to be able to share more efficiently the ideas with each other. However, I fear that if I use some online product (such as Google Docs) these ideas could be seen by people outside the team (employees of the company of the online product, other users...). I am not sure if I am being a little Paranoid parrot... One solution that we have considered is to install a Subversion with just one ideas.txt. But that would require a server in one of our houses, which is a little unconfortable. So how do you share your ideas for a new project with your team without risking the ideas to be stolen?

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• Multi Column Block Too Narrow in Chrome

  - by aksarben

  My Web site displays song lyrics in a multi-column format, using CSS3. Both Firefox & MSIE 10+ display the multi-column text perfectly, but Chrome does not. This sample page shows the problem: http://www.hymntime.com/tch/test/html5/html5-multicolumn-test.htm The page uses a media selector, so your Chrome window must be at least 1280 pixels wide to see the effect. In fact, if you make the Chrome window less than 1280 pixels, you'll see the lyrics block change to a single column, of the same overall width. In other words, when Chrome shifts to 1-column to 2-column mode (due to the wider browser window), the lyrics block remains the same width, causing text to be squeezed together. Has anyone else seen this behavior, or know a solution? Is this a Chrome bug, or I am I doing something wrong? I posted this question on a Chrome forum a while back, but got no reply.

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• The use of LGPL for Commercial use

  - by Smarty Twiti

  I am trying to make my first app for sale, I would like to ask some questions for those who have already sold their software: Have you used a Framework/Lib whose LGPL License? if yes, what are the impressions of your customers? for example, if your customers/ competitors from the market reveal technology/secrets that you used in your solution (as LGPL requires that you make a Dynamic Link (.DLL) for your libs and you clearly tell the use of a Lib/Framework ...). Full story: For my project, I used a framework LGPL/commercial (Dual License) the second one it was too expensive (about 3000 USD) which pushed me to use LGPL.. however I still concerned.. That is why I ask for advise and especially motivations... Please do not hesitate to participate... Thanks in advance.

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• Auto backup mysql database to dropbox [closed]

  - by Rob

  Is it possible to automatically backup my database to dropbox? If so how can I do it? The key criteria I need it to do is: Be automatic. Be Mac compliant. Be weekly. Sync with dropbox (http://www.dropbox.com) automatically. Be able to backup several databases from several websites. Be free... or relatively cheap! Have a guide on how to setup the solution. UPDATE: I've managed to setup an auto weekly backup using a cronjob: mysqldump -u username -pMyPassword Mydatabase > backup-file.sql That is saving the backup to my hosting space. It's a start but isn't ideal, how can I save that backup to a folder on my computer? Automatically of course.

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• Google new algorithm: My company have a 40 sites with different domains that some of their articles appears in my main website

  - by user5674576

  Hi, My company have a 40 sites with different domains that some of their articles appears in my main website with reference to their source. Our articles write by high level processionals in the field that they write about - we also pay them high salary. In recent google algorithm change my main site rating down very seriously. What should we do to restore company main site google rating? our solution and ideas that not working well: rel="canonical" to source website (we already have it before google change without results) meta "original-source" but not have rating influence (we already have it before google change without results) Edit:: maybe we should delete rel="canonical" from main website articles that refer to our other small websites (because this articles in main website not indexed in google)? Thanks in advance

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• High Tech Product Companies: Benchmark Your Sales & Marketing Data Management

  - by user709269

  Aberdeen’s Q4 2010 Quarterly Business Review found that 74% of the Sales and Marketing organizations in High Tech product manufacturing have strategic CRM initiatives in 2011. Aberdeen Group is conducting a survey that will help high tech product companies such as yours determine the Best-in-Class procedures for capturing, managing, and disseminating business data. If your product company is planning on implementing a CRM solution or is simply evaluating the potential benefits, we would appreciate your feedback in this brief, 10-minute survey. You will be able to compare your experiences in leveraging customer information for sales and marketing compare with your peers, benchmark your performance, and see how you can achieve Best-in-Class results. Individual responses will be kept strictly confidential, and data will only be used in aggregate. In appreciation for sharing your time and thoughts with us, we will provide complimentary access for you to the full benchmark report as soon as it is published (a $399 value). Take the survey.

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• AdventueWorks Design Patterns Project - Part 1

  - by RonGarlit

  This is the presentation I did tonight at PHILLYNJ.NET.  It is the first in a multi-part of a series on the Applied Design Patterns.   The solution files are working code with design pattern notes in the comment blocks. After the overview and higher level discussions on Enterprise Design Patterns I reviewed the low level Database Access Library of code.  With walk-throughs of the the code and unint test. After that we went through the ProductPhotoConsoleTest Application that performed intergration testing of the DBAccess Class with the AdventureWorks ProductPhoto table extracting the photos and writing them to a file folder. The Demo code and PowerPoint can be obained from this link.  https://skydrive.live.com/?wa=wsignin1.0&cid=29e34e9a8650bb9e#!/?cid=29e34e9a8650bb9e&sc=documents&id=29E34E9A8650BB9E%21151 Please note that I use Visual Studio 2010 Ultimate.  If you have a lesser version the Modeling projects likely will not work or have limited functionality and you should unload that project to prevent warning. Enjoy! --Ron

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• 2D fighting bounding boxes

  - by user36420

  I'm prototyping a 2D platformer/brawler game for uni and I'm having some trouble with creating collision/bounding boxes. This is most likely going to end up on a Vita so I do have some library constraints as well as performance implications. None of this has yet been implemented but is all theory. My idea was to have the artist create a sprite sheet for the character animation and then a second identical sprite sheet with the corresponding collisions in a solid colour (e.g green for where the character can be hit and red for dealing damage, near the foot if kicking etc.) With this, I would then parse the collision sheet and generate the various collisions required storing them in the character model. This is the point I feel would be most inefficient. While I think this is a possible solution, I was wondering if there was a more standard way of doing this or a more efficient way as I feel this would have severe performance problems.

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• Backup and Recovery in Exadata environments

  - by Javier Puerta

  As with any infrastructure every Engineered Systems customer needs a Backup & Recovery solution for Data Protection. See a detailed presentation and learn about the challenges of backup & recovery and the key benefits of the ZFS Storage Applicance as a backup device for Exadata & Sparc SuperCluster. (You need to be a registered member of the Exadata Partner Community to access link above. Otherwise you will get an error. You can register here)

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• atheros ar8161 not recognized

  - by Paul

  Apparently I am not the only one with this problem. This was my solution, but it did not work, of course. I downloaded the tar from another computer. I found the file of the atheros driver that I needed which is apparently atl1c. I put that file on my ubuntu desktop. I ran the following in the terminal: cd ~/Desktop atl1c make sudo make install I am sure that some of you will find this code laughable, but isn't there a simple code I could use once I have the atl1c folder on the desktop?

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• How to purge old links in google from an old domain.

  - by jbcurtin

  Hey all, Recently, I uploaded a new site to an existing domain and I'd like to figure out how I can forward all links to said domain to a new domain. I'm looking for a wordpress solution if possible, but in the end I I seem myself writing a small header script that I will paste into ever directory's index file saying header('Location:http://xxx.yyy.zzz') Is there a cleaner way to do this without having to resort to managing the whole file structure? No, I do not have access to the apache runtime. Unfortunately it is a shared-host server. Thanks in advance.

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• Sortie de WINDEV 17 avec 917 nouveautés, l'EDI permet à présent de développer des applications iPhone et iPad

  Sortie de WINDEV 17 Avec 917 nouveautés, « la solution rêvée pour développer des applications iPhone, iPad » affirme PC SOFT PC SOFT vient d'annonce la version 17 de WINDEV avec 917 nouveautés. Parmi celles-ci, WINDEV Mobile génère à présent des applications professionnelles natives pour iPhone et iPad en plus de Windows et d'Android. Au niveau du déploiement, le choix est possible soit via l'AppStore, ou la méthode Ad Hoc Distribution ou encore en in-House Distribution. « WINDEV Mobile permet de diffuser des applications portables sous iOS, Windows et Android tout en programmant avec un code unique », explique l'éditeur. « Là où, sans WINDEV, il est...

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• Monitor Display issue

  - by dsiddens

  When booting I will have to boot maybe 3 or 4 times to get a screen that is not displayed diagonally or is not using the full screen width. Hardware specification: HP s7727c with AMD64 and NVIDIA chipsets and Insignia 22" monitor/TV. The Ubuntu version is 9.10 Karmic. I'd like to stay current with Ubuntu on this machine, but have gone down to 9.10 to get this described functioning. I tried higher versions and could not get past the "black screen" I think this issue is connected to the NVIDIA chipset/driver problem. I am a GUI user and I don't follow the other solutions posted which make use of the command line. I suppose if the command line solution could be given without making any assumptions of the receiving person's knowledge base, then even I and others like me, could implement it. Thank you for your time and assistance. Doug

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• Build & Deployment Guide for Service Bus Relay Project

  - by Michael Stephenson

  Ive recently published a sample guide based on a real-world project where we implemented an on-premise WCF routing solution to connect SAAS applications to our on premise line of business applications. The guide will discuss: How we configured and setup the infrastructure How we setup the on-premise server to listen to the service bus What software we used How we configured Windows Azure This contains some useful contextual information around the reference scenario and hopefull this will be very useful to others undertaking similar projects. Ive also included this on the technet wiki page for Windows Azure Service Bus resources: http://social.technet.microsoft.com/wiki/contents/articles/13825.windows-azure-service-bus-resources.aspx

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