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• Stuck at boot, both with wubi and USB

  - by Christoffer

  I have tried installing Ubuntu 12.04 through USB and with wubi interface. Nothing works. With USB, I will enter the main menu, doesn't matter what i choose, "install ubuntu on a hard drive" or "boot into ubuntu from USB". When I click on one of those it will scan my drives or something, and when it gets to the USB it gets stuck. It just stays there.... With wubi, the install goes fine, but when trying to boot for the first time to ubuntu it says "completing ubuntu installation"... NOTHING more happens, that cursor only blinks there. How can I get Ubuntu to work??? I got: 1TB HDD, 256GB HDD, 80GB SSD. I'm trying to install Ubuntu on my 256 GB HDD....

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• Detecting pixels in a rotated Texture2D in XNA?

  - by PugWrath

  I know things similar to this have been posted, but I'm still trying to find a good solution... I'm drawing Texture2D objects on the ground in my game, and for Mouse-Over or targeting methods, I'm detecting whether or not the pixel in that Texture at the mouse position is Color.Transparent. This works perfectly when I do not rotate the texture, but I'd like to be able to rotate textures to add realism/variety. However, I either need to create a new Texture2D that is rotated at the correct angle so that I can detect its pixels, or I need to find some other method of detection... Any thoughts?

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• Languages with C/C++ output [closed]

  - by Vag

  Which languages have compilers able to emit plain standard C/C++ code? For a start: Haxe // uses Boehm GC Haskell (JHC) Haskell (old GHC) // -fvia-c, removed recently (emitted code is super ugly) Clay ATS Cython RPython (Shed Skin) // experimental RPython (PyPy) Python (Nuitka) // although author claims there are no speedups Common Lisp (ECL) COBOL (OpenCobol) Scheme (Chicken) APL // So far I've not found working implementation available for free download Ur/Web // GCC-specific output, and intended to be used only for web developments (included for completeness only) I'd like to build comprehensive up-to-date list but found only these ones so far. I've tested only Haxe and it works pretty well and quite fast. What about other ones? What is your expirience? How much ugly is generated code? Update. Any language chains (e.g. X - Scheme - C) will be perfectly OK as answer if its use is practical enough and suited for production use.

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• SSH refusing connection after changing default port

  - by wm90

  currently I'm handling 2 server (A and B). In server A I installed Ubuntu 12.10. I changed the SSH port into 1198 and it works fine. In server B it has been installed with Ubuntu 11.04. I tried to change the port number into 1198 as well but it refused the connection when I tried to connect again using Putty. I change the SSH configuration on /etc/ssh/sshd_config and I did restart the SSH using sudo service ssh restart. I was thinking its because of firewall allowed port but the firewall shows inactive when I run sudo ufw status. Any idea why this can happened?

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• Can exim be configured to send all emails externally?

  - by Tom Brossman

  How do I configure exim4 to route all emails via a third-party SMTP server when the sender's domain, recipient's domain, and server hostname all match? I followed this great answer and have exim4 sending emails to addresses at other domains tested and working from an Ubuntu server. My only issue is that emails where both the sender and recipient share the same domain as the server hostname, they never leave the server (and this is the expected behavior). For example, sending from [email protected] -- [email protected] works fine, but sending from [email protected] -- [email protected] just routes the mail locally to /var/mail/account2, without passing through the third-party SMTP server. I'm using Google Apps at my own domain and want to send emails from [email protected] to [email protected] from a machine with the hostname example.com. I want to route them through Google's SMTP server so I see them in my other email clients. Is this possible? Very similar questions (but for postfix) here and here.

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• Tracking a single page on another domain in Google Analytics

  - by Ross

  I have access to edit a 'mini-site' hosted on our organisation's parent site. I'd like to track this page using Google Analytics, however I don't have access to the front page so I can't verify this as my domain. Using the tracking code for our main site works, however I don't want this data to be confused with similarly named pages on our site (for example, our mini-site is at /radio, and if we had a /radio at our main site this would be counted as the same). Has anyone been in this situation before? I'd like to just redirect visitors to our mini-site to our main site, seeing as it ranks higher in Google, but I've been told to maintain a separate site with our main features.

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• xubuntu keyboard application shortcuts not working

  - by Guanidene

  I am using the latest Xubuntu 13.04 with Xfce 4.10. I have issues while setting "Application Shortucts' from 'Settings Manager Keyboard Application Shortcuts'. Not all custom keyboards shortcuts, which I have added, work. Some do, some don't. Example the command 'xdotool key XF86AudioPause' works perfect from cmdline, but not when I assign this as a shortcut to some key, say 'F11'. Have tried to Google about this, but found nothing. Kindly help. If possible, kindly provide me a cmdline way to set a keyboard shortcut

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• Checking collision of bullets and Asteroids

  - by Moaz ELdeen

  I'm trying to detect collision between two list of bullets and asteroids. The code works fine, but when the bullet intersects with an asteroid, and that bullet passes through another asteroid, the code gives an assertion, and it says about it can't increment the iterator. I'm sure there is a small bug in that code, but I can't find it. for (list<Bullet>::iterator itr_bullet = ship.m_Bullets.begin(); itr_bullet!=ship.m_Bullets.end();) { for (list<Asteroid>::iterator itr_astroid = asteroids.begin(); itr_astroid!=asteroids.end(); itr_astroid++) { if(checkCollision(itr_bullet->getCenter(),itr_astroid->getCenter(), itr_bullet->getRadius(), itr_astroid->getRadius())) { itr_astroid = asteroids.erase(itr_astroid); } } itr_bullet++; }

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• Ubuntu 11.0 HDMI Video Card No 5.1 Audio

  - by ryandlf

  I am using Ubuntu and XMBC on my HTPC and have chosen the Radeon HD5570 Video card which has an HDMI output. In the sound preferences there is no surround sound option for the video card just stereo and although I can get sound through it in XBMC, my receiver does not state Dolby Digital on movies that are in fact Dolby so its definitely not giving me the true sound it should. Does this card not support surround sound through HDMI and I somehow missed it? If that is the case does anyone have suggestion that has been tested and works? Id like to know its going to work before investing in yet another video card.

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• Wordpress does not create directories?

  - by Marcappuccino

  First I will just tell you how my wordpress hierarchy looks like: /var/www has all of the wordpress files, which is different from how it is normally set up as /var/www/wordpress (symlinked to /usr/share/wordpress). So var/www contains all of the files that /usr/share/wordpress would have, and /usr/share/wordpress is symlinked to /var/www, with an extra /var/www/wordpress symlinked to /var/www to prevent possible compatibility issues. When uploading a file like a favicon or a .zip-ped theme, everything works fine, and when checking if the theme/favicon is uploaded, wordpress shows that it is, and points to a directory that it thinks that it had created, like http:/localhost/wp-content/uploads/2012/..., which it had not, because the uploads folder is empty! And so there is a broken link on the internet and the theme is displayed but it has just plain text (because it had reverted to a plain theme I think) Please help! I am sorry for such a long post but this is really quite a troublesome problem. I have chowned /var/www and /usr/share/wordpress to www-data.

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• how to recover all database when migrate to 5.5.8 from 5.5.1

  - by anirudha

  the installation process of MySQL on windows are very simple as other software you need just configure them and they works. but somebody after migrating their mysql server to 5.5.8 confuse that their old database is now gone but it’s not  you need to do something to get back go to C:\ProgramData\MySQL\MySQL Server 5.1\data the programdata folder commonly hidden in any version of windows. you find their some folder cut them all you want to recover. note that don’t copy the file mainly in data folder just like err pid or log because they are configuration file and the configuration of mysql 5.1 and 5.8 both are different after copy the folder  go to C:\ProgramData\MySQL\MySQL Server 5.5\data paste here the folder restart mysql and all database is now in your hands.

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• 10.10 Acer 7551g - hibernation and suspending don't work

  - by gonzunio

  Issue is quite the same like here, I've tried everything I found and nothing happens. If I use uswsusp, suspending works good, but graphics doesn't wake up, when I want to hibernate system, it tells me "Looking for splash system... none s2disk:snapshotting system" and nothing happens. I'm using ATI drivers, i've tried to disable kms, unload usb3 and network drivers, still nothing. Please help me, I don't want to come back to Windows after my 2-year-relationship with Linux. I can share all files I have with you, just help me.

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• How can I set the display resolution to 800x480?

  - by Oswaldo Barceló

  I have just installed Ubuntu 12.04 and I have a problem with it. My mini-laptop has a display resolution of 800x480, however Ubuntu seems to support only a resolution of 800x600. I have looked for a solution, but I have found nothing which works. So, how can I set the display resolution to 800x480? hey, hola a todos! Acabo de instalar Ubuntu 12.04 y en verdad me gusta mucho. pero aunque me guste bastante, tengo un pequeño gran problema, LA RESOLUCION DE MI PANTALLA!!! mi mini-laptop tiene una resolución de 800x480, pero Ubuntu viene con una por defecto de 800x600. en verdad me gustaria que me pudieran ayudar. llevo rato buscando una solucion, pero NADA!!! espero que me puedan ayudar!!! gracias de antemano!!! SALUDOS

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• ACPI Events not triggered after booting

  - by user3208188

  I purchased a Convertible (Laptop and Tablet, Ubuntu 14.04 installed) and would like to execute a script when changing from laptop to tablet mode and the other way around. So I created two new files within the /etc/acpi/events folder corresponding to two new scripts in the /etc/acpi folder. Everything works well if I create a new acpid process (e.g "sudo acpid -c /etc/acpi/events -s /var/run/acpid.socket") manually. However, if I do not initiate this process manually the scripts are not executed, even though there is a process running with the same options right after the machine has booted by default. The only difference I can find is the parent pid. If I create the process the parent is "init --user", while the parent of the automatically initiated process is "/sbin/init". Can anyone help me by explaining why this issue happens and how I can avoid to start an acpid process manually every time I boot the device?

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• Are things slow for you today - Check your DNS

  - by simonsabin

  Domain name resolution is a very common cause of delays when doing anything over the network whether its accessing a web page or connecting to SQL Server. Everything uses DNS. TCP/IP works with IP addresses and not friendly names. When using names you have to have a way of resolving names to IP addresses and thats what DNS does. If your DNS is wrong then you'll get delays and also potentially odd results. For instance if you have multiple DNS servers configured you may find that occasionally...(read more)

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• phpMyAdmin says: $cfg['Servers'][$i]['userconfig'] ... not OK

  - by Palantir

  I have installed phpMyAdmin and it works fine. At the bottom of the pages however, there is this error message: The phpMyAdmin configuration storage is not completely configured, some extended features have been deactivated. To find out why click here. In that page, the only red row is this: $cfg['Servers'][$i]['userconfig'] ... not OK [ Documentation ] User preferences: Disabled In the configuration I have this: $cfg['Servers'][$i]['userconfig'] = 'pma_userconfig'; The pma_userconfig was missing from my phpmyadmin db so I found the create_tables.sql from my phpMyAdmin installation and I ran that, then restarted apache and mysql. The table has been created, but the error is not gone. Thanks!

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• Internet connection crashes while wifi / lan stay connected

  - by pirad

  I am connected to a router by wifi or lan. But every few moments (sometimes seconds, sometimes half an hour) my connection to the internet breaks down. So in one moment I can surf with my firefox and have ping times of 20 ms (wifi) to the google server. And in the next moment I can't open any pages in any browser and the ping shows no new messages first and then "Destination Host Unreachable". This is especially odd as another computer or my smart phone stays connected at the same time to the same network and seems to notice nothing. So I have a problem independend of wifi or lan drivers but with something else. Where should I look for logs that could tell me more information? I can't find some in syslog. Just if I reconnect to the router (wich works for another few moments) there are a lot of informations. But everythin is okay then.

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• Mouse stopped responding after installing Ubuntu Server

  - by Danijar

  It was 2 operating systems on my machine, Windows 7 and Ubuntu Desktop 12.04, both 64bit version. All works well, firstly I installed Win, then the Desktop version of Ubuntu, lasts's GRUB rewrites windows's boot and of course added it as a variant to load. Yesterday I wish to play with Ubuntu Server 12.04, and install it as a third operating system. During the installation Server's GRUB seems to rewrite that which installed earlier (background color became black, was purple). Firstly, newly installed GRUB generates me overmuch load options for Ubuntu Desktop, by two for each kernel version (normal and recovery modes). OK, it's bearable, but most thing, that the mouse on this machine is totally stops responding, regardless which operating system I choose to load. Hope somebody help me. Thanks in advance!

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• SEO penalty for landing page redirects

  - by therealsix

  Using ebay as an example- lets say I have a large number of items whose URLs' look like this: cgi.ebay.com/ebaymotors/1981-VW-Vanagon-manual-seats-seven-/250953153841 I want to give my client the ability to put links to these items on their website EASILY, without knowing or checking my URL. So I created a redirect service that will map their identifier with my URL: ebay.com/fake_redirect_service/shared_identifier9918 would redirect to the link above. This works great- my clients can easily setup these links with information they already have, and the user will see the page as usual. So on to the problem... I'm concerned that this redirecting service will have a negative impact on my SEO ranking. Having a landing page redirect you immediately to a different URL seems like something a typical spam site would do. Will this hurt me? Any better solutions?

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• redirecting subdomain to root index.php

  - by niku

  I am new to this. Here is the situation and wondering if someone can suggest best solution to it. I have domain "www.mydomain.com" where I have magento website running, we are in development stage so I did URL forwarding "www.mydomain.com" to "www.mydomain.net" and we have under-construction page on "www.mydomain.net'. Because we do not want to show development. I also have subdomain "beta.mydomain.com" which I pointed to "www.mydomain.com/index.php" which works fine. But how can I show this without changing URL in browser from "beta.mydomain.com" to "www.mydomain.com/index.php" this we want to show our development to management.

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• BleachBit: How to Completely Clear URL History in Firefox?

  - by tSquirrel

  14.04 / Firefox 29.0 I've been using Bleachbit to clear usage/file history, and for the most part it works great. However, it doesn't seem to clear the website hostnames out of the URL, at all. These addresses are not bookmarked. Also, the total URL isn't preserved, just the hostname. Visit site http://www.bluesnews.com/some_random_URL_string Exit Firefox Run Bleachbit, with ALL Firefox options selected Restart Firefox Check history: completely empty, other than bookmarked sites. www.bluesnews is NOT bookmarked Type "blue" which is Firefox automatically completes as "http://www.bluesnews.com/" Alternate Step #3: Use Firefox's built-in "Clear History" and select ALL entries with a time frame of "Everything". Same result as above. My inquiry in BB forums hasn't been responded to. I found Dan's proposed solution, however changing autocomplete in about:config only turns off the function, it doesn't actually stop storing URLs.

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• what is the Best way to learn object oriented principles

  - by Mike

  I am interesed in OOP principles and i found lots of documentations and books about it, for instance in C++, Java, .NET, PHP and so on, but if i only want to learn OOP principle, differences and not in language, what can i do? i want a good documentation, not just like a whole book about something except OOP :) specific answers, how it works, main features, pictures, or videos, or forum, or even stack... in every time I began studying i read a whole history of programming, computer science, software development and bla bla... i need specific answers, if it is possible i really need to learn, i need examples and exercises thanks in advance

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• After installing Ubuntu I can't boot Windows 8 anymore

  - by Gian Luca Scoccia

  I just bought a new laptop (a lenovo ideapad Z500) and it came installed with Windows 8. I wanted to have Ubuntu on it too, therefore I resized the Win8 partition from the control panel and installed Ubuntu on the free space I created. Ubuntu works perfectly, Windows does not load anymore... I tried the recommended repair with Boot-Repair but it did not fix, now I get a "Windows boot loader failed to start" on startup and then I get the GRUB screen. The partition summery created by Boot-Repair is here: http://paste.ubuntu.com/1444837/. How can I fix this? Thanks in advance for your help.

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• Why creating a new MDX language instead of extending SQL?

  - by DReispt

  I have a long experience with SQL, but recently began working with datawarehouse and OLAP technologies: building fact and dimension tables, that then are queried using MDX (MultiDimensional eXpressions). The problem is that MDX works with a completely different logic compared to SQL, and it's a whole new learning curve even for someone with a strong SQL background. Yes, MDX allows you to do things that would be hard or almost impossible with plain SQL. But sometimes it's frustrating to be hours around an MDX to do something you know you could achieve in minutes using SQL (ok, you can tell me to RTFM ...). But why go on to the trouble of creating a new completely different language when you could build on SQL, extend it to add the features needed by OLAP applications?

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• WiFi USB adapter showing the Network ..... but no connection in effect

  - by Idrees

  I have Pentium 4 system 3 GHz, 1 GB RAM ..... (no built-in WiFi) I installed Ubuntu 12.10 on my PC, works fine. It picked all the drivers for audio, video itself. I plugged TP-Link 54Mbps High Gain Wireless USB Adapter (TL-WN422G) ..... (link for the device: http://www.tp-link.com/en/products/details/?model=TL-WN422G) Now what happens is that the WiFi network is detected and shown in the "Network Connections", and it is also connected to it but when I open Firefox it is as if there no internet connection at all.

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