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• How to connect to other Ubuntu machine as X Server?

  - by Tibo

  When I want to work on my local Linux machines from windows, I use Putty+Xming and I set the Xming port in Putty connection settings. This way I have a terminal on the machine and if, for example, I run the command 'firefox' a firefox window is opened in Windows (while it is really running on the Linux machine). I want to do the same thing from other Linux machine (they are both Ubuntu machine) connect by SSH and become this connection X Server so any graphic component will be opened on local machine. How can I do that?

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• Setting up the GDM Theme

  - by Szymoninho

  I'm using Ubuntu 12.04 with Gnome Classic (no effects) and because of the fact that some system options have disappeared with the new system release I've been struggling with this for a while and despite this seems very easy I can't do this :/ - does anyone know how to choose a GDM Theme? I'm quite sure that GDM is now in use on my Ubuntu - I set it up with: sudo dpkg-reconfigure gdm Despite I moved the theme folder to /usr/share/gdm/themes nothing has changed by now, I've logged out and in a couple of times but everytime I get the standard log in window and wallpaper (different from mine). So I'll appreciate any kind of help from anybody, now I have absolutely no idea how to figure it out. Cheers.

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• Aug 3rd 2014 HUGE DRop in visits [duplicate]

  - by stephanie

  This question already has an answer here: How to diagnose a search engine ranking drop? 5 answers i am not a pro at this but i have built my website using freeway pro and for the past year i have managed to get between 100-130 visits a day to my website but on Aug 3, it dropped to 40… then now 15 a day… I do not know what happened and clearly freaking out on the situation as this is my shop window. There are no warnings or errors in Google Webmaster tools. Please help me out how to understand this issue. Has anything been happening with google around this time??

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• Web Server slows down (ASP.NET)

  - by mfeingold

  below is a question I posted on stackoverflow . as suggested by Martin Clarke I also post it here. We have a really strange problem. One of the servers in the server farm becomes really slow. We see a number of timeouts in the logs and overall response time is not where it should be (and is on other servers in the farm). What is also strange is that it is not just the web app - Just logging into the server takes up to 1.5 min to show you the desktop. Once you are in, the system is as responsive as ever - unless you try to launch something, i.e. notepad - it takes another minute to launch and after launch it works fine. I checked a number of things - memory utilization is reasonable, CPU is below 15%, windows handles, event logs do not show anything. Recycling the aps.net process does not fix it - it still takes over a minute to log in. Rebooting the server helped, but now it started to slow down again. After a closer look we found out that Windows Temp directory is full of temp files - over 65k files. This is certainly something to take care of. But my question is could it be the root cause of the sluggishness, or there is still something else lurking in the shadows? Edit After more digging I am zeroing in on the issue related to the size of temp directories. This article: (see the original post this thing will not let me include a second link) describes something very similar. It still does not answer the question why the server is still slow even there is no activity.

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• What does ^+Z do to a process

  - by Kifsif

  In command line I wrote: michael@ubuntu:~$ firefox Firefox launched. Command prompt ($) disappeared. Then I pressed ^+z. The result was: [1]+ Stopped firefox Well, Firefox really stopped. It did not react anyhow. So, I could not close it by pressing the cross of the window. By the way, the menu items 'Tools', and 'Help' somehow showed some signs of life. They showed drop-down lists, but nothing more (no reaction to inner menu items). Well, I could not end Firefox through System Monitor. Could you comment on this case: what happened after pressing ^+z?

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• Demographics and Interests reports

  - by Dyf

  I have an issue with Google Analytics, can't seem to find a guide how to activate Demographics and Interests reports. I am using the new version of analytics (Universal Analytics) and the script code looks something like this: (function (i, s, o, g, r, a, m) { i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function () { (i[r].q = i[r].q || []).push(arguments) }, i[r].l = 1 * new Date(); a = s.createElement(o), m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m) })(window, document, 'script', '//www.google-analytics.com/analytics.js', 'ga'); But the guide i found on googles page (https://support.google.com/analytics/answer/2819948?hl=sv) is for the old version (Classis Analytics). Anyone know how i can activate this on Universal Analytics or is this even possible? Thanks!

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• Keeping application backend and UI synchronised

  - by Deanna

  Hi all. I have an app that works with a list of objects so has one central keyed list. The main window has a tree containing these object with some information, which is easy enough to populate as a one off event after loading. Now, the complicated part, any part of the application can add, remove, and more importantly change the details of those objects at any time (all in the same process) and I'd like the tree to update to suit. I have a few options including passing events back down from the object to the list to the form which seems to be the most flexible way. I can also do it lazily and repopulate the tree each time or periodically (very hackish). Does anyone have any better thoughts on how to structure this? This is being done in C# 2.0 but the concepts apply to any environment. Thanks

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• Why can't I change my icon theme in gnome-classic?

  - by Shibumi

  I'm running Ubuntu 11.10 (updated) and gnome-classic (I missed it :3) I've tried setting my icon theme, GTK theme, and window theme in gnome-tweak-tool, as well as Ubuntu Tweak, gconf-editor, and dconf-editor. Even though it shows my selections are selected, the icons and themes stay the same. Any Help would be greatly appreciated! Update: I've tested things out on gnome-shell and Unity, and I have full control over icons and such in those environments, but still no control in gnome-classic. I would really like to figure this out. Update 2: It seems that after uninstalling Unity that I have full control over everything. Any explanation (since Unity or some part of it seemed to be the cause) would be really nice.

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• Managing different utility classes between engine and libraries

  - by hayer

  I'm currently in updating some engine code (which does not work, so it is more like creating a engine). I've decided to swap over to SFML (instead of my own crappy renderer, window manager, and audio), Box2D (since I need physics, but have none), and some small utilities I've built myself. The problem is that each of the project mentioned over use different types for things like Vector2, etc. So to the question: is it a good idea to replace Box2D and SFML vectors with my own vector class (which is one of my better implementations)? My idea then was to have a separate .lib with all my classes that should be shared between all the projects in the solution.

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• Why Does Unity on Ubuntu 11.04 Lags Often That I have To Manually Shutdown/Restart my Core i3 Laptop?

  - by user20655

  I did a fresh install of Ubuntu then do did some upgrades. After my next restart when I try to open Ubuntu Software Center it took about 20 seconds for the window to load then 10 more seconds before it became click able. While doing some installation of software, Unity lags like hell that every time I click any application it takes a few seconds before I can see it. Even GEdit take a lot of time to load. The worst part was when I was doing nothing to my computer. Even on that part, my computer lags. My Laptop is a Brand New Core i3 with 2GB of RAM. Unity should run perfectly on that kind of machine right? BTW: I reinstalled Ubuntu 11.04 for about 5 times now and still nothing changed.

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• Adobe Flash Player Upgrade

  - by user211743

  I am running Lubuntu right now and I'm new to Linux. I went to youtube and it said I needed to upgrade Adobe Flash Player and litte window in the to left hand corner came up saying to install plugin needed so I pressed it and then it said no suitable plugins found. So then I Pressed download from Adobe and I just downloded the first thing which was Yum assuming thats the linux version of the plugin I needed. Then I opened the yum download and Archive Manager came up and now I don't know what to do. Help Please

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• Install Skype on Ubuntu 12.04 LTS 64-bit

  - by Samir R. Bhogayta

  For 32Bit Terminal Commands: wget http://download.skype.com/linux/skype-ubuntu-lucid_4.2.0.11-1_i386.debsudo dpkg -i skype-ubuntu-lucid_4.2.0.11-1_i386.debsudo apt-get -f install;rm skype-ubuntu-lucid_4.2.0.11-1_i386.deb For 64Bit Terminal Commands: sudo dpkg --add-architecture i386sudo apt-get install ia32-libssudo apt-get updatewget http://download.skype.com/linux/skype-ubuntu-lucid_4.2.0.11-1_i386.debsudo dpkg -i skype-ubuntu-lucid_4.2.0.11-1_i386.debsudo apt-get -f install;rm skype-ubuntu-lucid_4.2.0.11-1_i386.debAfter all of this run in terminal sudo apt-get install sni-qt:i386; This will restore the skype contact window That's all, work done in maximum 5 minutes. I use Ubuntu on 64bit and this method to install Skype worked always perfectly.

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• Google analytics shows wrong number of page views, asp.net website

  - by f_karlsson

  Sometimes it can be for example 4500 requests, after a few hours it shows a few thousand less. What is wrong? It looks like analytics corrects itself. I changed from classic to Universal a few months ago, do not know if it has anything to do with this. In masterpage: <script> (function (i, s, o, g, r, a, m) { i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function () { (i[r].q = i[r].q || []).push(arguments) }, i[r].l = 1 * new Date(); a = s.createElement(o), m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m) })(window, document, 'script', '//www.google-analytics.com/analytics.js', 'ga'); ga('create', 'UA-xxxxxxxx-1', 'xxxxx.se'); ga('send', 'pageview'); </script>

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• Which Qt4 Widgets whould I be using? [closed]

  - by Topo

  I'm using Qt 4 to design an IDE but I'm having a hard time with the GUI design. On the left side I want to put a widget that shows the files on the current project and on the left side a similar one but with the classes, methods, etc... Which widget should I use the Tree view or the tree widget? Also, I want to have a tab widget in the center with a text edit and this items the tree widgets and the tab widget to move and resize according to the window size. How can I accomplish this?

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• How does a linked library combined with the main executable program file interact with a kernel?

  - by I ask Questions For a Reason

  I was attempting to find an answer to this, and I did to some degree, but definitely not anywhere good enough to form a respectable, sensible and clear answer. If I am using Windows, Mac, Linux, or nearly any modern made OS for desktop IBM-compatible PCs, laptops, even tablets and smartphones, there's virtual memory. Clearly, compiling, at least on Windows I know this, an executable object file, such as a simple C "Hello World" output to a terminal, will be linked with the standard library, and several other Window's system software, dynamic linked libraries, and the like. However, how does linking all of these executables together or resources form a connectable interaction with, say, a device driver or any other stuff on the lower level?

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• Screen gets garbled on some web sites

  - by user10565

  I have a Gateway notebook with graphics card 01:05.0 VGA compatible controller: ATI Technologies Inc RS690M [Radeon X1200 Series] with open source driver Linux version 2.6.32 -28 - generic. No other operating system on the computer. When I am using firefox to browse the web, everything normally works just fine except that when I attempt to access some particular web pages the screen completely messes up going mostly white with various streaks, etc., although I can access other pages of the same site without problems. When I run the cursor over the garbled screen, bits of the image recompose themselves, at least partially, and I can continue to open the applications window, or turn the computer off, or open the terminal, or take screen shots, etc., although all menus are unreadable. Also, when I zoom in on Google Earth the screen completely messes up. At all other times, there are no apparent problems. Any ideas?

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• What is meant by namespaced content and what advantages does it have?

  - by Geek

  I was reading this blog by James Bennett regarding HTML vs XHTML . He writes : I don’t have any need for namespaced content; I’m not displaying any complex mathematical notation here and don’t plan to, and I don’t use SVG for any images. So that’s one advantage of XHTML out the window. I also don’t have any need for XML tools; all the processing I need to do can be handled by HTML-parsing libraries like BeautifulSoup. That’s the other advantage gone. What does he mean by namespaced content and what advantage does it provide us ?

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• Videos stutter in full screen

  - by user85256

  Using Ubuntu 12.04 with Gnome 3.4.2. When I load video files (avi, mkv, mp4), they play smoothly in windowed mode, but when in full screen, they mildly (but noticeably) stutter. I've tried various players (from VLC to SMplayer2), with many different output drivers and it's always the same. Also, my video card is AMD Radeon HD 6450, and I've had no luck with the proprietary FGLRX drivers. Every time I install them, my system becomes very sluggish (window dragging animations become choppy etc.). Thanks in advance, guys.

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• Searchability and Indexability in Silverlight Sites

  I got a question from a friend last week that I thought would be a great question to post the answer to about Searchability and Indexability with Silverlight apps. Here is the question, "I have created a site and I followed the approach something like this : I have created 5 projects for five pages and added the five xap in the main SilverlightProject. and then I have write the code something like this for each menu buttons : HtmlPage.Window.Navigate(new Uri("/Default.aspx",urikind.relative) ; My...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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• NetworkManager refuses to manage my WLAN interface

  - by user104167

  I'm using Ubuntu 12.10 with Gnome 3.6 on a brand-new Samsung NP900X4C. The installer detected the wireless adapter, took in the SSID and WPA passphrase, wrote these into /etc/network/interfaces and connected perfectly. Once installation was finished I wanted to switch to using NetworkManager to manage the wireless adapter, since this is much more convenient than fiddling with /etc/network/interfaces every time I find a new hotspot. Therefore I edited /etc/NetworkManager/NetworkManager.conf to set: [ifupdown] managed=true When I rebooted NetworkManager, the problems started: - The NetworkManager tray applet changed from saying device not managed to device not ready - I lost all internet connectivity as wlan0 would not associate to the Access Point - if I set managed=false in NetworkManager.conf and restarted both NetworkManager and networking services from the command-line, the Gnome desktop "semi-crashed" and lost all its Window Decorations, the panel, the launcher and basically became unusable. However if I restart the computer completely after setting managed=false, wlan0 once again works perfectly.

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• Remmina password problem with windows server 2008 R2

  - by Hcbayram

  I use Ubuntu 12.04. I am already using Remmina both with RDP and VNC connections for several servers. For one of my servers I have a problem to login after login window opens. The server is Windows 2008 R2. The screen for entering user and password comes but does not accept the password. I guess the problem is with language but password does not contain any problematic letter except a $ sign. When connecting from Windows 7 there is no problem.

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• Cant install Ubuntu. How do you format a Windows HDD

  - by heldeman

  I have an HP 630, and would like to install Ubuntu. All goes well until the point where you have to choose how you want Ubuntu installed. I choose on the whole HDD, I want Windows off the HDD. I press enter and about 5 seconds later the CD tray open and the computer reboots. This happens over and over. How do I format this Window HDD completely to install Ubuntu 13.04. I have tried 3 different CD's and the same thing happens each time.

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• How can I restore /usr/share/fonts on 10.04?

  - by user207046

  I did something extremely stupid. I'm currently working on a 10.04 system (work-related), and since I was missing some fonts I decided to simply copy some over from my own, 12.10 system. I ran cp -R <12.10 root/usr/share/fonts/truetype/* /usr/share/fonts/truetype/ Immediately, terminal and window header fonts got completely messed up, although chromium still shows everything correctly, as does nautilus. How can I restore this directory? Is there anything else I have do afterwards? Thanks a bunch, Chris For shits and giggles, here's how it looks.

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• 2008R2 Standard and Hyper-V and Ram Usage (Usable vs Available)

  - by Mark

  A new server was purchased for our development team to start utilizing the full feature set of TFS, namely Lab Management. Because of the need for Lab Management we bought a fairly beefy machine to handle this task and to also act as a build machine. I have been tasked to setup additional features TFS on this machine starting out with a build controller and eventually going towards a full out Lab Management setup using Hyper-V. My question: Upon initially logging I noticed that Windows is registering 64gb but only 32gb available. I know this is a limitation because of licencing since only Standard Edition is installed. Since Hyper-V is another layer that handles the virtualization of guest OS's is Hyper-V able to access this memory? Or is Hyper-V memory usage also limited by 2008 R2 Standard? If Hyper-V can somehow access this memory, is this how it should be setup? Or should the host 2008R2 Standard be upgraded to Enterprise so the Host can utilize the full 64gb? Before I go hog wild and using TFS I wanted to ask some experts so I don't need to reinstall the OS down the road to utilize the additional 32gb. Thanks for any help or links you can share.

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• Allow more websocket connections

  - by Switz

  I want to load balance my node.js (DerbyJS to be specific) application on a basic Linode (512MB ram). It can probably take more than one process running at once. The querys/database does not concern me as I'm not doing anything intensive. The problem at the moment is that it can only handle up to ~40 websocket connections at once. I would love if I could get that number in the few hundred+ range. I anticipate a lot of traffic on launch due to the fact that it's a highly niche community with an engaged audience, but after it should be fine with just ~20-40 connections at once, which it handles perfectly as of now. I don't mind spending a bit of money for a week or two worth of running, but I also don't want to switch production environments. How can I test the process to see how many instances I am able to run on the box? Will increasing the number of processes increase the amount of websockets I can handle, or is that a limitation of the server's network? I have an old Macbook Pro running Linux sitting next to me that has 2GB ram and a 2.8 Dual Core Processor. Could I use this to handle some of the extra load? I could probably load balance with nginx to its IP. I'm on a FiOS home network. If you have any suggestions, I'd really appreciate it. Thanks

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