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• Doesn't work Nginx + SSI [migrated]

  - by boopidoopi

  I have some problems. Nginx doesn't work with SSI. Nginx listens 80 port (frontend), apache2 listens 81 port (backend). That is my nginx configurations: server { listen 80; server_name test.dev www.test.dev; error_log /var/log/nginx/error.log debug; log_subrequest on; location / { ssi on; proxy_pass http://localhost:81; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; client_max_body_size 15m; client_body_buffer_size 128k; } } SSI include in test.dev index.php: <!--# include virtual="http:test.dev/test.html" -- When I open test.dev/index.php I see clean page. In page source: <!--# include virtual="http:test.dev/test.html" -- So how to enable SSI in nginx? Can you help me?

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• Which frontend framework/library should I learn to enhance an existing site? [on hold]

  - by Codemonkey

  I have a large site that I've coded by hand over the last couple of years. It's a sports results service, and allows users to view their results, compare themselves to others, buy photographs, that sort of thing. The code base is fairly substantial, and scarily uses no frameworks or libraries. It's a PHP backend, and a clean & compact frontend. I use the Highcharts library, but other than that all of the JS is my own. I'm not a fan of bulk, even if it is CDN-hosted and heavily cachable. Maybe I need to change my outlook on this? I'm wanting to make some significant changes to the site now, and it seems an appropriate time to enhance my skillset by learning AngularJS, or something else of that ilk. A large part of the site is tables of data, and as just one example of the sort of thing I want to achieve, I'd like to let users add/remove/sort columns better than they currently can. Are any of the various frameworks/libraries out there more suitable to shoehorning into an existing project?

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• ReSharper 7.1 update

  - by TATWORTH

  Jet Brains have announced ReSharper 7.1: a considerable update to the powerful .NET developer productivity tool for Visual Studio. They invite you to download ReSharper 7.1 and take it for a free 30-day trial. I urge you to try this excellent Visual Studio add-on. Here is their announcement: Following this update, ReSharper 7 brings even more value to all .NET developers, such as more ways to refactor, inspect, clean up, review and generate code. Feature highlights of ReSharper 7 now include: Full integration with Visual Studio 2012 while maintaining support for Visual Studio 2005, 2008, and 2010.Performance and bug fixes: Since releasing version 7.0 this summer, we have fixed over 300 performance problems and bugs.New code inspections and contract annotations for a more robust .NET code quality analysis. Sharing ReSharper code inspection results with teammates has been streamlined as well for the purposes of code review.Improved tooling for .NET code maintenance including the top requested Extract Class refactoring that helps decrease code complexity, as well as a way to remove unused assembly references across the entire solution.Enhanced code formatter: We have implemented some of the most demanded code formatter improvements so far. For example, ReSharper 7.1 is able to format XML doc comments and chained method calls.Additional code exploration features helping visualize hierarchies of polymorphic members and CSS styles.An extended and fine-tuned code generation toolset. In terms of support for specific technologies and frameworks, ReSharper 7 is on the cutting edge as well, providing: Support for VB.NET refined with the Extract Class refactoring, new quick-fixes and improved IntelliSense.XAML support considerably enhanced in terms of code completion, typing assistance, naming style control, and code generation.An extensive pack of functionality for developers looking to create Windows Store applications for Windows 8.INotifyPropertyChanged interface support pack to improve productivity of Windows Forms, WPF and Silverlight application developers.Extended web development toolset, including improvements to JavaScript support, and initial support for ASP.NET 4.5 and ASP.NET MVC 4.Addition of two previously unsupported Microsoft development technologies: LightSwitch and SharePoint. For details on features and improvements in ReSharper 7 and a 30-day free trial, please read What's New in ReSharper 7.

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• Serializing network messages

  - by mtsvetkov

  I am writing a network wrapper around boost::asio and was wondering what is a good and simple way to serialize my messages. I have a message factory which can take care of dispatching the data to the correct builder, but I want to know if there are any established solutions for getting the binary data on the sender side and consequently passing the data for deserialization on the receiver end. Some options I've explored are: passing a pointer to a char[] to the serialize/deserialize functions (for serialize to write to, and deserialize to read from), but it's difficult to enforce buffer size this way; building on that, I decided to have the serialize function return a boost::asio::mutable_buffer, however ownership of the memory gets blurred between multiple classes, as the network wrapper needs to clean up the memory allocated by the message builder. I have also seen solutions involving streambuf's and stringstream's, but manipulating binary data in terms of its string representation is something I want to avoid. Is there some sort of binary stream I can use instead? What I am looking for is a solution (preferrably using boost libs) that lets the message builder dictate the amount of memory allocated during serialization and what that would look like in terms of passing the data around between the wrapper and message factory/message builders. PS. Messages contain almost exclusively built-in types and PODs and form a shallow but wide hierarchy for the sake of going through a factory. Note: a link to examples of using boost::serialization for something like this would be appreciated as I'm having difficulties figuring out the relation between it and buffers.

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• Dual Booting Windows 7 and Ubuntu 12.04. Partition Sizes?

  - by John F.

  I'm about to reinstall Windows, so I thought that I'd try Ubuntu out on a partition just for fun. My question is, how large should my partitions be for each of them? I know this various depending on what you use, so i'll give you a general idea of what I have, and what I have in mind. I'm currently running: Windows 7 Professional (64bit) RAM: 4GB CPU: 2.5Ghz Quad Core processor HDD: 500GB GPU: 1GB Nvidia GeForce I have around 130GB in Steam games, and some heavier applications like Photoshop CS6, Sony Vegas Pro 11. But other Applications I use are: Chrome Skype Dxtory Fraps OpenOffice BitTorrent and other assorted smaller programs. So, I was thinking that I would give my Windows partition about 150-200GB, my Ubuntu Partition around 20GB, and the rest to shared storage. I'm not really sure if I'd need more or less on Ubuntu, because I've never used it and I'm not really sure what kind of apps i'd be using over there. This would also be a clean install, so I'd be wiping my HDD, creating the Partitions in GParted, then installing Windows with Ubuntu following that. Any critique you could give me? Maybe explanations to what the /root, /boot and /home partitions I hear are about? Thanks in advanced if you actually read this lengthy thing! Any help is appreciated. (x

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• ISA Proxy server

  - by user59931

  Have a proxy at work that runs Microsoft ISA. i used to be able to connect using 11.10 with firefox no problem at all. i could either put the settings in firefox or the settings in ubuntu network proxy settings. this would give me a connection no problem ( slow due to the work network being really lame) since i upgraded with 12.10 firefox just crashes if i have any proxy settings (manual added the proxy settings). if i connect to a diffrent network without the proxy settings it works fine and doesn't crash i tried chrome to see if that would work... simular problem. chrome doesn't crash but is so slow it just times out all the time and can take 10min for a page to load.... not really sure where to go with this? i have tried a clean install of 12.04 on 2 diffrent computers and also both tried just upgrading from 11.10. Only answer i can see at the moment is role back to 11.10 :( i have tried all sorts like turning of IPv6 to see if that would make any diffrence but no joy... really am lost now. whats weird is the repositys are also really really slow through 12.04. 50 megs took an hour to download (ISA server has Ubuntu rep servers enables without authenication). really am lost

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• What's so great about Clojure?

  - by marco-fiset

  I've been taking a look at Clojure lately and I stumbled upon this post on Stackoverflow that indicates some projects following best practices, and overall good Clojure code. I wanted to get my head around the language after reading some basic tutorials so I took a look at some "real-world" projects. After looking at ClojureScript and Compojure (two the the aforementioned "good" projects), I just feel like Clojure is a joke. I don't understand why someone would pick Clojure over say, Ruby or Python, two languages that I love and have such a clean syntax and are very easy to pick up whereas Clojure uses so much parenthesis and symbols everywhere that it ruins the readability for me. I think that Ruby and Python are beautiful, readable and elegant. They are easy to read even for someone who does not know the language inside out. However, Clojure is opaque to me and I feel like I must know every tiny detail about the language implementation in order to be able to understand any code. So please, enlighten me! What is so good about Clojure? What is the absolute minimum that I should know about the language in order to appreciate it?

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• View the Time & Date in Chrome When Hiding Your Taskbar

  - by Asian Angel

  Do you prefer keeping your Taskbar hidden but still need to keep watch on what time it is? Now you can keep track of the time without the Taskbar using the Date Today extension for Google Chrome. A Look at Date Today with Different Themes This extension does one thing and does it well…it provides you with an “active icon” clock that will let you view the time and date in two fashions. The first is by hovering your mouse over the “Toolbar Clock Button”… And the second is by clicking on the “Toolbar Clock Button” to view an enlarged version. Here you can see the extension in use with five different themes to get an idea of how it might look with the theme that you are currently using. It does stand out very nicely with brighter or darker colored themes. Conclusion While this extension is obviously not for everyone it will make a nice (and useful) addition to Chrome for those who prefer keeping their Taskbar hidden. Links Download the Date Today extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Set the Date and Time on SolarisView Browser History Based on Host & Date in ChromeQuick Tip: Set a Future Date for a Post in WordPressFuture Date a Post in Windows Live WriterSave Screen Space by Hiding the Bookmarks Toolbar in Safari for Windows TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Discovery Channel LIFE Theme (Win7) Increase the size of Taskbar Previews (Win 7) Scan your PC for nasties with Panda ActiveScan CleanMem – Memory Cleaner AceStock – The Personal Stock Monitor Add Multiple Tabs to Office Programs

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• How to cut the line between quality and time?

  - by m3th0dman

  On one hand, I have been taught by various software engineering books ([1] as example) that my job as a programmer is to make the best possible software: great design, flexibility, to be easily maintained etc. One the other hand although I realize that I actually write software for money and not for entertainment, although is very nice to write good code and plan ahead and refactor after writing and ... I wonder if it is always best for the business (after all we should be responsible). Is the business always benefiting from a best code? Maybe I'm over-engineering something, and it's not always useful? So how should I know when to stop in the process to achieving the best possible code? I am sure that experience is something that makes a difference here, but I believe this cannot be the only answer. [1] Uncle Bob's in Clean Code says at page 6 about the fact that: They [managers] may defend the schedule and requirements with passion; but that’s their job. It’s your job to defend the code with equal passion.

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• Reformatting and version control

  - by l0b0

  Code formatting matters. Even indentation matters. And consistency is more important than minor improvements. But projects usually don't have a clear, complete, verifiable and enforced style guide from day 1, and major improvements may arrive any day. Maybe you find that SELECT id, name, address FROM persons JOIN addresses ON persons.id = addresses.person_id; could be better written as / is better written than SELECT persons.id, persons.name, addresses.address FROM persons JOIN addresses ON persons.id = addresses.person_id; while working on adding more columns to the query. Maybe this is the most complex of all four queries in your code, or a trivial query among thousands. No matter how difficult the transition, you decide it's worth it. But how do you track code changes across major formatting changes? You could just give up and say "this is the point where we start again", or you could reformat all queries in the entire repository history. If you're using a distributed version control system like Git you can revert to the first commit ever, and reformat your way from there to the current state. But it's a lot of work, and everyone else would have to pause work (or be prepared for the mother of all merges) while it's going on. Is there a better way to change history which gives the best of all results: Same style in all commits Minimal merge work ? To clarify, this is not about best practices when starting the project, but rather what should be done when a large refactoring has been deemed a Good Thing™ but you still want a traceable history? Never rewriting history is great if it's the only way to ensure that your versions always work the same, but what about the developer benefits of a clean rewrite? Especially if you have ways (tests, syntax definitions or an identical binary after compilation) to ensure that the rewritten version works exactly the same way as the original?

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• How To Figure Out Your PC’s Host Name From the Command Prompt

  - by The Geek

  If you’re doing any work with networking, you probably need to know the name of your computer. Rather than diving into Control Panel, there’s a really simple way to do this from the command prompt. Note: If you haven’t already, be sure to read our complete guide to networking Windows 7 with XP and Vista. To see the hostname… all you have to do is type hostname at the command prompt. Go figure, eh? The same thing works in Linux or OS X, though you can see that most of the time the hostname is part of the prompt anyway. Note: you can also change the hostname by simply typing “hostname <newhostname>”. Of course, the easiest way to see your computer name in Windows is to just hit the Win+Break key combination, which will pop up the System pane from Control Panel.   If you want to change it instead, you can always change your computer name easily through Control Panel. Similar Articles Productive Geek Tips MySql: Give Root User Logon Permission From Any HostUse "Command Prompt Here" in Windows VistaKeyboard Ninja: Scrolling the Windows Command Prompt With Only the KeyboardVerify the Integrity of Windows Vista System FilesFind Path of Application Running on Solaris, Ubuntu, Suse or Redhat Linux TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Home Networks – How do they look like & the problems they cause Check Your IMAP Mail Offline In Thunderbird Follow Finder Finds You Twitter Users To Follow Combine MP3 Files Easily QuicklyCode Provides Cheatsheets & Other Programming Stuff Download Free MP3s from Amazon

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• Should I listen to my employer and use CASE tools?

  - by omsharp

  My employer (Not a Developer) thinks that CASE tools will help us improve our development process and documentation. I am not sure about that, we are a small team of 5 developers building mobile banking solutions for local clients. I think CASE tools will be a waste of time and money as they need to be purchased and we will need some time before we get used to them and be efficient working with them for modeling and stuff. Code generation is another issue, I really think that the CASE generated code won't be as good as code written by good developers. I think that if we stick with agile princeliness, design patterns, use TDD, and keep our code clean. we should be good. And as far as Analysis and Design, I think simple UML diagrams on whiteboard should do the trick. Documentation is good and important, but should be made as little as possible and we should not focus on Docs and forget the code. This is what i think. Am I correct? or should I listen to my employer and start researching for an appropriate CASE Tool?

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• Couldn't pass the signin screen on ubuntu

  - by Amokrane

  I have an issue here with my computer using ubuntu 10.10 on a 64 bits machine. When I start it, I have the login screen, I enter my credentials but instead of starting the session it reloads the login screen again. I checked the disc using fsck and it seems clean. How should I proceed to diagnose and repair this issue? Thanks! [Edit] I went to the log files, this is what I got: auth.log pam_unix (gdm:session): session opened for user amokrane by (uid=0) pam_ck_connector (gdm:session): nox11 mode, ignoring PAM_TTY :0 pam_unix (gdm:session) :session closed for user amokrane messages.log No ACPI video bus found I also took a shot with my camera of the black screen that appears between the two login screens, it says something like: fsck from util-linux-ng 2.17.2 /dev/sdc4 : propre, xxxx files, xxxx blocs Starting AppArmor profiles Skipping profiles in /etc/apparmor.d/disable: usr.bin.firefox Setting sensors limits Starting postgreSQL ... /var/log/Xorg.0.log [ 25.375] (II) intel(0): Modeline "1920x1080"x60.0 172.80 ... [ 28.850] (II) Power Button: Close [ 28.850] (II) UnloadModule: "evdev" [ 29.910] (II) Power Button: Close [ 28.910] (II) UnloadModule: "evdev" [ 28.941] (II) AT Translated Set 2 keyboard: Close [ 29.000] (II) ImPS/2 Generic Wheel Mouse: Close [ 29.000] (II) UnloadModule: "evdev" [ 29.039] ddxSigGiveUp: Closing log Update I tried the following: Ctrl-Alt-F1 on the login screen (to runt the console). sudo pkill startx sudo rm /tmp/.X0-locl startx But it tells me that the x server is already running.

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• Is there a NVIDIA driver (for a 7-series card) that will actually work for 12.10?

  - by DS13

  I see many similar topics on this, but I've tried all their suggestions, and nothing has worked. ISSUE: I do a clean install of Ubuntu 12.10. Boots fine with the “nouveau” graphics driver – graphics are very slow and choppy. The three other driver options in Ubuntu (official NVIDIA drivers), all result in a variation of the black screen on boot up. There will be NO access to a command line/GUI in anyway what-so-ever (tried every option recommended out there, but the system is unusable at this stage). I can only reinstall, and try different drivers…and I only ever get one shot at it. QUESTIONS: Does anyone know of a NVIDIA driver that will actually work with a Nvidia GeForce 7350LE? Or a 7-series card in general? This is my second computer, and I’m just trying to get a working install of Ubuntu on it. I don’t want to put much money into it, as I have seen Ubuntu run great on much older/less capable machines. I’ve got a decent Intel processor (2.3Ghz), 2GB of RAM, 320GB hard drive, 32-bit architecture, and there is no other O/S installed. It appears as if the graphics card is holding me back. Should I just buy a cheap graphics card (non-NVIDIA) to put in as a replacement? TRIED SO FAR: -all drivers available in Ubuntu *all fail -manual install of some different NVIDIA drivers *all fail -also tried installing the generic kernel, Nvidia driver doesn't work in 12.10 *no difference -every method suggested to at least get a command line after switching to a NVIDIA driver *all fail

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• Does it make sense to write tests for legacy code when there is no time for a complete refactoring?

  - by is4

  I usually try to follow the advice of the book Working Effectively with Legacy Code. I break dependencies, move parts of the code to @VisibleForTesting public static methods and to new classes to make the code (or at least some part of it) testable. And I write tests to make sure that I don't break anything when I'm modifying or adding new functions. A colleague says that I shouldn't do this. His reasoning: The original code might not work properly in the first place. And writing tests for it makes future fixes and modifications harder since devs have to understand and modify the tests too. If it's GUI code with some logic (~12 lines, 2-3 if/else block, for example), a test isn't worth the trouble since the code is too trivial to begin with. Similar bad patterns could exist in other parts of the codebase, too (which I haven't seen yet, I'm rather new); it will be easier to clean them all up in one big refactoring. Extracting out logic could undermine this future possibility. Should I avoid extracting out testable parts and writing tests if we don't have time for complete refactoring? Is there any disadvantage to this that I should consider?

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• Acer Aspire One 725 - missing graphic card driver for Radeon HD 6290?

  - by Melon

  Recently I bought an Acer Aspire One 725 Netbook and installed Ubuntu 12.10 on it. I bought it, because it can run HD movies and has Full HD on external VGA port. However, movies from youtube have a really slow framerate. If you open three tabs in Opera (for example g-mail, youtube and askubuntu) it gets really laggy. My suspicion is that the driver for graphic card is missing. When I check the System->Details->Graphics the driver is unknown. After running lspci | grep VGA I get this output: 00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 980a From what I see, I have a AMD C70 processor integrated with (or something similar) AMD Radeon HD 6290. Has anyone had the same problem? Do you know which drivers need to be installed for the graphics to work properly? On official Acer page there are only drivers for Win7 and Win8... Update: I have tried installing fglrx but I get the following error (either I don't have libraries or someone didn't make a clean build before release ;) /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c: In function ‘KCL_MEM_AllocLinearAddrInterval’: /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:2124:5: error: implicit declaration of function ‘do_mmap’ [-Werror=implicit-function-declaration] /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:2124:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c: In function ‘kasInitExecutionLevels’: /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:4159:5: error: ‘cpu_possible_map’ undeclared (first use in this function) /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:4159:5: note: each undeclared identifier is reported only once for each function it appears in /lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:4159:5: warning: left-hand operand of comma expression has no effect [-Wunused-value] Update 2: After fixing the erros in compilation, ubuntu acts bizarre and unstable (no left icon panel, no upper panel, cannot run any programs, I only see desktop)

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• System in low graphics, deleted linux, grub rescue, can't access windows

  - by First timer

  So I'm pretty new to Ubuntu but I managed to install it with no big problems on both my desktop and netbook. When I installed it on my brother's netbook everything went horribly wrong and now I fear the system is close to beyond repair. The problem was first that it said it did not have any space left (seemed ridiculous since it had a lot). Then Ubuntu began booting into a "System is running in low graphics mode error" which I then tried to fix, using all the tips I could find in here but nothing helped. I think the graphics error and lack of space might have been related but I can't be sure. Finally I gave up repairing Ubuntu and went for a reinstall. Shouldn't have done that! I read that I should simply open Ubuntu through a live usb and choose GParted to delete the Linux partitions so I did and rebooted accordingly. Next, I was to install Ubuntu but now I am only given the option to wipe the whole disk for Ubuntu, not install along with windows 7. If I access GParted I can still see the ntfs partitions that hold windows 7 (there are 2: one labeled RECOVERY and another labeled OS and boot) so why can't I access them? Btw. the OS and boot has a little red mark with a warning that 1 cluster is referenced to multiple times, don't know what that means. If I boot without the live usb I am sent directly into a grub rescue "black screen of the computer will follow no orders". Please, I know that the easiest might be to simply wipe the whole thing clean but there are important files and programs on windows 7. Is there a way to just access windows? It is a dell inspiron 1018 mini netbook, so I have no cd input and no windows 7 installation cd.

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• Trouble dual booting Ubuntu 14.04 & Windows 8

  - by AkBKukU

  My motherboard (MSI G45-Z87) has efi, I still can't figure out how to make stuff work with it. I had Ubuntu working with Windows 8 before 14.04 came out and I did a clean install of Ubuntu when it did to upgrade. Since then I hadn't been able to boot Windows but I don't use it anyway so it didn't effect me. I tried getting it working today so I could use some adobe software. The last time I had tried to do something with the boot it was giving me warnings that my boot files were to far in the drive. So I followed this guide to use gparted and boot-repair to add a boot partition. I was able to reboot Ubuntu after that. I then proceeded to install Windows 8.1 to a different drive. Now the computer will only boot straight into Windows and if I manually select Ubuntu, but not the drive Ubuntu is on, to boot it stops on a black screen during boot after showing the Ubuntu logo. I've run boot-repair in several different ways but have had no luck. Here is the boot summary info from the recommended settings for it. I could really use some help.

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• 11.10 install hangs at different places

  - by TreefrogInc

  I've been trying to install Oneiric for some time now, and I've looked everywhere for a solution to the problems I've been having. So far, I've attempted four times to install it, so now I'm up to a point of panic. So I grabbed the 11.10 x64 iso from the website, and after verifying that the md5 hash is correct, I burned that onto my last remaining clean CD. On my first attempt, everything went perfectly up to the middle of the installation, and the progress bar stopped when it said: "configuring target system." I could do everything else, only the installation seemed to have stopped. After I googled my problem, I went and used the "check disc for errors" option, which said everything was fine. Then I tried the installation again, only this time, I selected "Install Ubuntu Now" instead of the "try before installing". Again, the same problem. My second and third tries didn't even reach the installation phase. It just stopped at the 5 blinking dots and never went any further. I used the same non-rewritable cd for all the attempts, as the error check didn't show any problems and because I'm currently out of usable cds. System: Core i3 CPU @ 3.4 GHz, 500 GB HDD (250g used for Win7, 70g used for preexisting system partitions, 180g unallocated).

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• I installed ubuntu, the installer told me to reboot afterwards. I dd, and now linux wont boot

  - by mandy

  Im trying to dual boot between mac 10.6.8 and ubuntu 11.10. I have a macbook pro 8,1. So i installed from a 10.04 disk because the install window makes more sense to me, and it doesnt give me errors or anything. Also, any versions of ubuntu after that dont boot from disk for whatever reason. (i think its having to do with the efi boot thing. i have to get ubuntu 11.10 to boot from a usb with folders bootefiboot.iso) Then my plan after that was after the ubuntu 10.04 install took care of all the swap and stuff for me without being messy, to upgrade to 11.10. So here i have 10.04 booting successfully back and forth from mac osx no problem. I put in my 11.10 usb and the installer gives me the option to "update 10.04 to 11.10" bingo, jackpot, thats what i want. Everything proceeds as normal, as EVERY OTHER install of ubuntu i have ever done, then the installer finishes and says HEY! im finished! Continue testing or reboot now! So i reboot, and what do i get??? A black screen that says the file system isnt found, to enter a boot disk and press any key. WHAT THE HELL????? so i boot the 11.10 installer again from usb, and select "erase 11.10 and install 11.10", installer proceeds normally, and asks me to reboot. I reboot and get the SAME THING. Please, someone, help me get this right here. This is my first time actually dual booting between mac and linux. Usually i just wipe off osx completely and install ubuntu but i actually need to keep my mac partition this time. I have successfully installed 11.10 on this machine before, but that was when i did a clean install. Help?

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• Ubuntu Server 12.04 as a router. Problem with DNS?? Or Routing table?

  - by Lorenzo

  I have a virtualbox lab made up of 4 Windows 2008 R2 servers (DC/DNS,SQL,SHAREPOINT, EXCHANGE) that are configured with static ip addresses with NIC's attached to Internal network. Everything works. I had the requirement to execute some tests that also access external services available on the internet. To keep things clean and similar to the production environment I have installed another VM, with Ubuntu Server 12.04 64 bit and configured (I hope) to work as a router like described on this post. This VM has two network interfaces: first is Bridged with the host and is used as a WAN connection and the other one attached in the Internal Network with its own static IP address on the internal network subnet. But actually the Windows servers does not connect to the internet while the unix one connects. I did a route command. this is the result: Kernel IP Routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.69.121.1 0.0.0.0 UG 100 0 0 eth0 10.69.121.0 * 255.255.255.0 U 0 0 0 eth0 192.168.83.0 * 255.255.255.0 U 0 0 0 eth1 Can somebody help me with this configuration? :) Thanks! Addendum: I forgot to mention that one of the windows server hosts a DNS service for which I should maybe configure a forwarding server but I do not exactly know which server to forward on... :(

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• Is there any kind of established architecture for browser based MMO games?

  - by black_puppydog

  I am beginning the development of a broser based game in which players take certain actions at any point in time. Big parts of gameplay will be happening in real life and just have to be entered into the system. I believe a good kind of comparison might be a platform for managing fantasy football, although I have virtually no experience playing that, so please correct me if I am mistaken here. The point is that some events happen in the program (i.e. on the server, out of reach for the players) like pulling new results from some datasource, starting of a new round by a game master and such. Other events happen in real life (two players closing a deal on the transfer of some team member or whatnot - again: have never played fantasy football) and have to be entered into the system. The first part is pretty easy since the game masters will be "staff" and thus can be trusted to a certain degree to not mess with the system. But the second part bothers me quite a lot, especially since the actions may involve multiple steps and interactions with different players, like registering a deal with the system that then has to be approved by the other party or denied and passed on to a game master to decide. I would of course like to separate the game logic as far as possible from the presentation and basic form validation but am unsure how to do this in a clean fashion. Of course I could (and will) put some effort into making my own architectural decisions and prototype different ideas. But I am bound to make some stupid mistakes at some point, so I would like to avoid some of that by getting a little "book smart" beforehand. So the question is: Is there any kind of architectural works that I can read up on? Papers, blogs, maybe design documents or even source code? Writing this down this seems more like a business application with business rules, workflows and such... Any good entry points for that?

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• Should I care about Junit redundancy when using setUp() with @Before annotation?

  - by c_maker

  Even though developers have switched from junit 3.x to 4.x I still see the following 99% of the time: @Before public void setUp(){/*some setup code*/} @After public void tearDown(){/*some clean up code*/} Just to clarify my point... in Junit 4.x, when the runners are set up correctly, the framework will pick up the @Before and @After annotations no matter the method name. So why do developers keep using the same conventional junit 3.x names? Is there any harm keeping the old names while also using the annotations (other than it makes me feel like devs do not know how this really works and just in case, use the same name AND annotate as well)? Is there any harm in changing the names to something maybe more meaningful, like eachTestMethod() (which looks great with @Before since it reads 'before each test method') or initializeEachTestMethod()? What do you do and why? I know this is a tiny thing (and may probably be even unimportant to some), but it is always in the back of my mind when I write a test and see this. I want to either follow this pattern or not but I want to know why I am doing it and not just because 99% of my fellow developers do it as well.

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• SteamCMD can't add files to my home directory

  - by Angle O'Saxon

  I'm trying to clean up the administration of some game servers I run on a Ubuntu box, part of which has been finally setting permissions properly so I can run the Steam console tool that controls updates and such. I had been running it as root using sudo, but I changed the permissions so that I can start it as a regular user rather than root. That bit seems to work fine, but now when SteamCMD actually starts, it errors with the following output ./steam.sh: line 24: /home/angleosaxon/.steampid: Permission denied Installing breakpad exception handler for appid(steam)/version(1334262703) SteamUpdater: Error: Couldn't create directory /home/angleosaxon/Steam/package, got error 13 [ 0%] Download complete. [----] Verifying installation... unlinked 0 orphaned pipes [----] !!! Fatal Error: Steam failed to load: *SteamStartEngine(0xbfa7cfa0) failed with error 1: Failed to open logfile /home/angleosaxon/Steam/steam.log Leaving aside the question of why it wants to add this information to my home directory, why is it getting access denied errors? As I understand it, since it's being run by my account, it operates with my permissions, so it should be able to read/write from my home directory, shouldn't it? This is the command I'm using to run it: /opt/steamcmd/steam.sh "+login UserAccount \"This is not my actual password.\"" +force_install_dir $ServerDir "+app_update 215360 validate" +quit

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• How to get Nvidia graphics working on Sony Z laptop?

  - by projectshave

  I have an older Sony VAIO Z 590 laptop with switchable graphics between Intel and Nvidia GeForce 9300M. It is NOT Optimus. I did a clean install of Ubuntu 12.04. Everything works, but it's using Unity 2D with the Intel drivers. I've tried loading the Nvidia drivers from "Additional Drivers", but it says "this driver is activated but not currently in use". When I run "nvidia-settings", an error window pops up to say "You do not appear to be using the NVIDIA X drivers." "lspci" shows both graphics cards. Let me know if I should add more info. How do I get the Nvidia graphics and Unity 3D working? More info: $ lshw -short -class display H/W path Device Class Description ============================================== /0/100/1/0 display G98 [GeForce 9300M GS] /0/100/2 display Mobile 4 Series Chipset Integrated Graphics C $ glxinfo name of display: :0 Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Error: couldn't find RGB GLX visual or fbconfig Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Excerpts from Xorg.0.log: [ 16.373] (II) LoadModule: "glx" [ 16.373] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/libglx.so [ 16.386] (II) Module glx: vendor="NVIDIA Corporation" [ 16.386] compiled for 4.0.2, module version = 1.0.0 [ 16.386] Module class: X.Org Server Extension [ 16.386] (II) NVIDIA GLX Module 295.49 Tue May 1 00:09:10 PDT 2012 [ 16.608] (II) NVIDIA dlloader X Driver 295.49 Mon Apr 30 23:48:24 PDT 2012 [ 16.608] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs [ 17.693] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

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