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• Xubuntu, LXDE, USB Booting

  - by Kosciak

  Welcome, My problem appeared today - I was using Xubuntu for a long time, but find out that LXDE should be faster than Xfce, so I installed it. After installing I followed tutorial for removing Xfce, cause disk in my computer is very small and I wanted to release some free space. I used command from this tutorial: How to remove xubuntu-desktop? but instead of remove I entered purge command… and rebooted at the end. And I uninstalled whole my things. The problem is in installing system again - it's old Sony Vaio laptop (PCG-GR250) and I have broken CD-DVD drive. It's possible to boot from USB? I can access recovery mode, will this help me? Please answer fast, because it's my brother computer, and his going to kill me if I won't fix this fast :(

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• How to make Firefox windows style less space consuming?

  - by chocobai

  Firefox takes up so much space on small screens, so I'm searching for solutions that make firefox' interface less space consuming on ubuntu 12.04 with gnome3. Good examples are the chromium-style, but chromium is kind of slow in gnome3. Chromium does it, firefox on osx does it. Is this also possible on ubuntu via a custom modification or something? Here a screenshot of what I am thinking about: Firefox on OSX: https://wiki.mozilla.org/images/5/50/Firefox-4-Mockup-i06-%28OSX%29-%28TabsTop%29-%28Persona%29.png Thanks for your help.

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• SEO blog Indexing: wordpress.com subdomain vs a registered domain?

  - by rumspringa00

  I've used WordPress for a few of my client's sites, mostly small businesses and eCommerce sites. I have found through Google Analytics as well as the All in One Webmaster plugin that when it comes to social media, using WordPress is a surefire way of getting your site indexed by Google and occasionally Bing and Yahoo. Since I am a heavy WP user, I'd like to contribute by registering a dot WordPress domain for my portfolio. When using a WP installation concurrently with a WP domain, e.g. myportfolio.wordpress.com, will the site be more or less likely to be indexed rather a generic myportfolio.com domain? I've seen mixed opinions where people seem to favor a WP domain for URL output where others say that it's a moot point, and that Google will not favor a WP domain over a dot com domain as long as your meta tags are updated and content is keyword optimized. I tend to disagree and believe a WP domain would more likely be indexed and output more URLs over an individual, laconic domain like myportfolio.com. Am I wrong?

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• Q&amp;A: Will my favourite ORM Foo work with SQL Azure?

  - by Eric Nelson

  short answer: Quite probably, as SQL Azure is very similar to SQL Server longer answer: Object Relational Mappers (ORMs) that work with SQL Server are likely but not guaranteed to work with SQL Azure. The differences between the RDBMS versions are small – but may cause problems, for example in tools used to create the mapping between objects and tables or in generated SQL from the ORM which expects “certain things” :-) More specifically: ADO.NET Entity Framework / LINQ to Entities can be used with SQL Azure, but the Visual Studio designer does not currently work. You will need to point the designer at a version of your database running of SQL Server to create the mapping, then change the connection details to run against SQL Azure. LINQ to SQL has similar issues to ADO.NET Entity Framework above NHibernate can be used against SQL Azure DevExpress XPO supports SQL Azure from version 9.3 DataObjects.Net supports SQL Azure Open Access from Telerik works “seamlessly”  - their words not mine :-) The list above is by no means comprehensive – please leave a comment with details of other ORMs that work (or do not work) with SQL Azure. Related Links: General guidelines and limitations of SQL Azure SQL Azure vs SQL Server

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• How to create a reasonably sized urban area manually but efficiently

  - by Overv

  I have a game concept that only really works in an urban area that is of reasonable scale and diversity. In terms of what it should look like, think GTA, in terms of the size think more like a small neighbourhood with residents and a few local shops, perhaps a supermarket. I'm mostly experienced in programming and not at all with modelling, texturing or drawing, but I've found that SketchUp allows me to design interesting looking buildings that I model after real world buildings in my own neighbourhood. Designing these buildings and other objects can take from a few tens of minutes to a few hours. My question is: what is the best approach for a one man army like me who does manage to model buildings to create an interesting city environment in a reasonable amount of time? My game will not be based on procedural generation, the environment will actually be modelled like GTA cities.

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• Changing DisplayMode seems not to update Input&Graphic Dimension

  - by coding.mof

  I'm writing a small game using Slick and Nifty-GUI. At the program startup I set the DisplayMode using the following lines: AppGameContainer app = new ... app.setDisplayMode( 800, 600, false ); app.start(); I wrote a Nifty-ScreenController for my settings dialog in which the user can select the desired DisplayMode. When I try to set the new DisplayMode within this controller class the game window gets resized correctly but the Graphics and Input objects aren't updated accordingly. Therefore my rendering code just uses a part of the new window. I tried to set different DisplayModes in the main method to test if it's generally possible to invoke this method multiple times. It seems that changing the DisplayMode only works before I call app.start(). Furthermore I tried to update the Graphics & Input object manually but the init and setDimensions methods are package private. :( Does someone know what I'm doing wrong and how to change the DisplayMode correctly?

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• Is there a point to writing in C or C++ instead of C# without knowing specifically what would make a program faster?

  - by user828584

  I wrote a small library in Python for handling the xbox 360's STFS files to be used on my web applications. I would like to rewrite it for use in the many desktop programs people are writing for 360 game modding, but I'm not quite if I should continue using C# or delve into C++ or even C. STFS is an in-file file system used by the xbox 360 and the job of the library would be extracting/injecting files, which could take noticeable amounts of time to do. What I know in C# comes from internet tutorials and resources, as would anything I learn about C++, so what I'm asking is if it's better to bring myself to a slightly lower-level language without knowing beforehand the features of the language that increase performance, or continue assuming that compiler optimizations and that my lack of experience will mean that the language I choose won't matter.

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• Money in from website

  - by oshirowanen

  EDIT 1: It seems that paypals micropayment system is currently my best option to retaining as much of the $1 as possible. Does anyone know of a way to retain even more of the $1? ORIGINAL QUESTION: I need to receive money from users from my webpage. They will only pay very small amounts, i.e. $1 max, but the total will probably go upto $10,000.00. What is the best way to receive this money from a webpage? When I say "the best way", i mean a method of getting the money from where I lose as little of it as possible in terms of fees for receiving the money.

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• How much server bandwidth does an average RTS game require per month?

  - by Nat Weiss

  My friend and I are going to write a multiplayer, multiplatform RTS game and are currently analyzing the costs of going with a client-server architecture. The game will have a small map with mostly characters, not buildings (think of DotA or League of Legends). The authoritative game logic will run on the server and message packet sizes will be highly optimized. We'd like to know approximately how much server bandwidth our proposed RTS game would use on a monthly basis, considering these theoretical constants: 100 concurrent users maximum 8 players maximum per game 10 ticks per second Bonus: If you can tell us approximately how much server RAM this kind of game would use that would also help a great deal. Thanks in advance.

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• Announcing a new Free Windows Azure Platform Trial offer

  - by Eric Nelson

  We now have a  truly useful Windows Azure Platform trial. Which makes me very happy as I was a vocal critic of the original trial offer. Simply put, the small number of compute hours it included made it useless for many potential early adopters. This is now fixed. The new Introductory Special now includes a generous 750 hours of compute – enough to run a web role 24/7. Enjoy! Related Links Full announcement If you are an ISV then there is a better offer for you via Microsoft Platform Ready and Cloud Essentials and keep an eye on our events for ISVs as we will be doing Windows Azure Platform technical briefings starting March 31st.

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• Biome Transition in a Grid & Borderless World

  - by API-Beast

  I have a universe: a list of "Systems", each with their own center, type and radius. A small part of such a universe could look like this: Systems: Can be very close to a different system, e.g. overlap Can be inside another, much bigger system Can be very far away from any other systems Spawn system specific entities and particles inside the system radius Have some properties like background color So far so good. However, the player can fly around freely, inside and outside of systems, in real time. How do I interpolate and determine things like the background color now, depending on camera position? E.g. if you are halfway between a green and a red system you should see a background halfway between red and green, or if you are inside a lilac system near the center and at the border of a green system you should get a mostly lilac background etc.

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• What Is The Relationship Between Software Architect and Team Member

  - by Steve Peng

  I work for a small company which has less than 100 persons. Several months ago, this company offered me position of SA and I accepted. There are three teams in this company, and I work for one of them. This is the first time I work as a SA. During the past months, I find I don't have any power of management, I even can't let the team member do things (coding-related) in the way which is correct and more efficient. The team members argue with me on very very basic technical questions and I have to explain to them again and again. Though some members did take my advice, other members stubbornly program in their way which frequently proved wrong finally. Recently I feel a little tired and confused. I wonder what is correct relationship between a Software Architect and team members including the team leader? Besides, is software architect also leaded by the Team Leader?

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• How do I simulate the mouse and keyboard using C# or C++?

  - by Art

  I want to start develop for Kinect, but hardest theme for it - how to send keyboard and mouse input to any application. In previous question I got an advice to develop my own driver for this devices, but this will take a while. I imagine application like a gate, that can translate SendMessage's into system wide input or driver application with API to send this inputs. So I wonder, is there are drivers or simulators that can interact with C# or C++? Small edition: SendMessage, PostMessage, keybd_event will work only on Windows application with common messages loop. So I need driver application that will work on low, kernel, level.

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• Where can I find the supported way to deploy hadoop on precise?

  - by Jeff McCarrell

  I want to set up a small (6 node) hadoop/hive/pig cluster. I see the work in the juju space on charms; however, the current status of deploying a single charm per node will not work for me. I see ServerTeam Hadoop which talks about re-packaging the bigtop packages. The cloudera CDH3 installation guide talks about Maverick and Lucid, but not precise. What am I missing? Is there a straight forward way to deploy hadoop/hive/pig on 6 nodes that does not involve building from tarballs?

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• Trip Report: Scottsdale Arizona Event Conference Planning

  Monday May 10th, 2010 represents my largest and best event to-date, that I have ever hosted. For the last seven years, I’ve grown a technical audience around Microsoft programming / developers in the Phoenix area. Some travel from California, New Mexico, and other parts of Arizona, but for the most part the crowd is local. In years past, this all day event has been as small as 300 folks, and as large as 500, and I’ve tried been to venues around the valley some better than others. 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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• Mono Tools for Visual Studio 1.1 has been released!

  Mono Tools for Visual Studio 1.1 has officially been released, containing several of the most requested features, as well as many bugfixes. Mono Tools for Visual Studio is a commercial add-in for Microsoft? Visual Studio? that enables developers to build, debug, and deploy .NET applications targeting Mono from within their preferred IDE. Along with many bugfixes and small enhancements, the Mono Tools 1.1 update features the following improvements: Smarter Remote File Copying Automatically...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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• How to Name Groups of Apps on the Windows 8 Metro Start Screen

  - by Taylor Gibb

  The Windows 8 Start Screen certainly takes some getting use to, however, one of the things that I really miss about the Start Menu was how i was able to categorize my installed applications. While you cant create folders on the Start Screen, you can group your applications. To get started head over to the Metro Start Screen and move your mouse to the bottom right-hand corner, clicking on the small icon. Now right click on the group of apps that you want to name. Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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• What kind of installer should I use?

  - by crosenblum

  I need a program installer for window's that is free or open source, that is somewhat customizable, but creates very small installer files. I would be using this to create a mmorpg game client installer, for my private server. And I'll need to this repeatedly once my server goes live to help keep my player's up to date with server changes. Any suggestions? I have tried NSIS, but i really didn't like it, too hard to do. I am also concerned about file sizes... Any thoughts?

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• Value of Internationalization in the iPhone App store?

  - by hotpaw2

  I have several iOS/iPhone apps that have been continually selling in small amounts in over 2 dozen different countries, even though the app UIs and all the store descriptions are only in English. In a few countries where English is not the official or native language, a few apps are selling far better than is proportionate for those country's population size compared with the U.S. So why Internationalize apps? What kind of increase, if any, in sales might a typical app see if it is Internationalized into given local languages? Which major languages might be likely to see the greatest improvement in app sales or downloads due to a localized app description?

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• Proper policy for user setup

  - by Dave Long

  I am still fairly new to linux hosting and am currently working on some policies for our production ubuntu servers. The servers are public facing webservers with ssh access from the public network and database servers with ssh access from the internal private network. We are a small hosting company so in the past with windows servers we used one user account and one password that each of us used internally. Anyone outside of the company who needed to access the server for FTP or anything else had their own user account. Is that okay to do in the linux world, or would most people recommend using individual accounts for each person who needs to access the server?

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• Your experiences with TDD [closed]

  - by SkonJeet

  In your experience, does TDD prove to be a useful approach in all development projects? Do you take the approach of TDD even when working on an existing project? Also, how does mocking tie in with a TDD discipline? I'm not looking for opinions, I'm looking for developers' advice, tips and learning resources regarding TDD's usage based on their experience. I'm going to spend the day equipping myself with enough knowledge about TDD to start making small steps towards using it but I don't know to what extent I should be using it.

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• The Ubuntu Advantage Service right for my non-profit?

  - by Robert

  My small 5 computer office currently runs on Ubuntu. 2 of the desktops run Windows7 in Sun Virtualbox software, and are used for Quickbooks. I am going off to college, and I am looking for a paid tech support solution to replace my IT position. I have an approx $300/mth budget, and I am wiling to discuss higher rates. Everyone in the office is currently comfortable with regular desktop usage, but I am handling all of the software installation and updates. I was hoping to get a total support package for all of their tech related questions, but I cannot find any services which will support linux. Is the Ubuntu Advantage Service something which can take my place? They would mostly need network help, printer help, and an occasional software compatibly troubleshooting session. If this is not a solution, does anyone know of a tech support forum/hotline which would cover all of this? Thank you for reading.

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• Choice of node.js modules to demo flexibility

  - by John K

  I'm putting together a presentation to talk about and demo node.js to client-side JavaScript developers. The language concepts and syntax are not an issue for them, so instead I'd like to get right into things and show off node's abilities that differ from client-side scripting. There are numerous modules available in the NPM registry and many people have much more experience with the registry than I do. I'm looking for a selection of node modules based on recommendations from your experience that show a variety of uses for node that are practical, broadly useful and can be demonstrated with a small code sample without requiring much domain knowledge on behalf of the audience. Neat and impressive is good too - I can throw in a couple of shock and awe items for cool factor. To be fair, top-voted answers will get most consideration for inclusion. My hope is this will result in a well-rounded demonstration of node technology.

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• What norms/API for monitoring my servers?

  - by dystroy

  I have a dozen server applications installed on my customers intranets (they can send http requests over the internet but cannot be called from outside). They're written in various technologies, mainly java and Go. I want them to regularly push information about their state towards a central server which is visible on internet. Some of this information is generic (is it ON ?), some is specific (size of a cache in an application for example). The main goal is to be able to make a small web page on which I could instantly check the state of every servers. And maybe later add some kind of notification in case of problem. Obviously I can do this by writing a few dozen lines of code each side (or a little more if I put this data in a database) but in order to ease future evolution, it could be interesting to use some existing norms or libraries. So, what are the current opensource free and light solutions to do this, preferably with no central configuration when I add a server ? I'd prefer a norm over a library.

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• How to debug a server that crashes once in a few days?

  - by Nir

  One of my servers crashes once in a few days. It does low traffic static web serving + low trafic dynamic web serving (PHP, local MYSQL with small data, APC, MEMCACHE) + some background jobs like XML file processing. The only clue I have is that a few hours before the server dies it starts swapping (see screenshot http://awesomescreenshot.com/075xmd24 ) The server has a lot of free memory. Server details: Ubuntu 11.10 oneiric i386 scalarizr (0.7.185) python 2.7.2, chef 0.10.8, mysql 5.1.58, apache 2.2.20, php 5.3.6, memcached 1.4.7 Amazon EC2 (us-west-1) How can I detect the reason for the server crashes ? When it crashes its no longer accessible from the outside world.

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