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• Advice on how to understand in general and in practice IT Infrastructure

  - by Luca

  My IT knowledge resides mainly in SW development. I have just some basic know how about networks. On the net I tried to get information and read books in order to better understand the overall IT infrastrcuture, but all the sources I found are too generic or, mainly, too detailed in just one aspect, making me lost. Could anyone suggest some books or web resources as good compromise in details? My goal would be able to understand the network issues and security threats when, for example, two remote system have to be setup and put in connection each other. Considering this scenario there are several aspects to consider: firewalls, intranet/internet interconnections, certificates for httpS, etc. The argument is quite wide, therefore I was looking for something that might help to start to understand this subject without going too deep in details (Computer Networks from A.Tanenbaum is a wonderful milestone, but way too specific for my scope). Thanks

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• How to fix Fullscreen focus error in Unity?

  - by Vagrant232

  Recently, I've been experiencing an error with programs that have a fullscreen mode with low resolution (80xx600 and below) in Unity. The problem isn't valid in gnomeshell. Whenever I launch an application, unity would enlarge the screen more than it should be and would only show me the upper left corner of the screen (I only see a magnified quarter of the screen). At first I thought that it was an issue related to wine but I later found out that native applications (such as world of goo) are affected as well. Apps that taken on the full screen but have a larger resolution don't face such an issue. Is it possible to get this fixed manually? Or do I have to wait for updates?

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• IntelliTrace collector error Some or all identity references could not be translated

  - by Tarun Arora

  If you are running the IntelliTrace stand alone collector to collect the trace against an Application Pool which is running under the identity “.\<username>” then you are likely to run into the following exception, Start-IntelliTraceCollection : Some or all identity references could not be translated. At line:1 char:29 + Start-IntelliTraceCollection <<<<  "FabrikamFiber.Web" C:\IntelliTraceCTP\collection_plan.ASP.NET.trace.xml C:\Intell iTraceLogs     + CategoryInfo          : NotSpecified: (:) [Start-IntelliTraceCollection], IdentityNotMappedException     + FullyQualifiedErrorId : System.Security.Principal.IdentityNotMappedException,Microsoft.VisualStudio.IntelliTrace    .PowerShell.StartIntelliTraceCollectionCommand   Steps to reproduce the issue The application pool “FabrikamFiber.Web” is using the identity “.\Admin”   Workaround Change the identity of the application pool to <MachineName|Domain>\<UserName>. So, in the above work around if I change the identity to “Production\Admin” then the IntelliTrace does not throw an exception. This error has been reported to Microsoft and it is expected that it will be fixed in one of the future releases. Enjoy!

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• What are the pros and cons of a non-fixed-interval update loop?

  - by akonsu

  I am studying various approaches to implementing a game loop and I have found this article. In the article the author implements a loop which, if the processing falls behind in time, skips frame renderings and just updates the game in a loop (the last variant called "Constant Game Speed independent of Variable FPS"). I do not understand why it is acceptable to call update_game() in a loop without making sure the update function is called at a particular interval. I do not see any value in doing this. I would think that in my game I want to be sure the game is updated periodically with a known period. So maybe it is worthwhile to have two threads, one would call update periodically, and the other one would redraw the game, also periodically? Would this be a good and practical approach? Of course I would need to synchronise the threads.

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• What Exactly Does the Wattage Rating on a Power Supply Unit Mean?

  - by Jason Fitzpatrick

  Your PSU is rated 80 Plus Bronze and for 650 watts, but what exactly does that mean? Read on to see how wattage and power efficiency ratings translate to real world use. Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It

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• Webcast on using live upgrade

  - by Owen Allen

  Leon Shaner is doing a webcast next week, on Thursday Nov. 6 at 11 am EST, about updating Oracle Solaris in Ops Center using Live Upgrade. He's also written a blog post over on the Enterprise Manager blog about using Live Upgrade and and Oracle Solaris 11 Boot Environments, which goes into a lot of detail about the benefits, requirements, setup, and use of these features. To join the webconference, when it rolls around: Go to https://oracleconferencing.webex.com/oracleconferencing/j.php?ED=209834092&UID=1512097467&PW=NMTJjY2NkZjg0&RT=MiMxMQ%3D%3D If requested, enter your name and email address. If a password is required, enter the meeting password: oracle123 Click Join. To dial into the conference, dial 1-866-682-4770 (US/Canada) or go here for the numbers in other countries. The conference code is 7629343# and the security code is 7777#.

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• Ubuntu 13.04/13.10 - low graphics mode/black screen after login

  - by Richard Stokes

  Since last week, my Ubuntu 13.04 installation started booting up in low graphics mode out of nowhere. I tried a number of solutions found on this site but to no avail. The other night, I decided to upgrade to 13.10 to see if the issue would be fixed in the process. Since then, the system starts fine, but when I login to my account, I'm just presented with a black screen. I switched to the terminal and did any necessary updates, but to no avail. I don't even know where to start debugging this issue, so I'd appreciate if someone could point me towards the first place to start looking?

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• How To Create Your Own Custom Google Search Engine

  - by Chris Hoffman

  Have you ever wanted to create a custom Google search engine that searches only specific websites? You can easily do this with Google’s Custom Search Engine tool. You can bookmark your search engine and even share it with other people. This trick works similarly to Google’s site: operator, but you won’t have to type the operator every time you search. It’s particularly useful if you want to search a large number of sites at once. How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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• automount smb share customization

  - by Douda

  as a new linux user, used Ubuntu 12.10, I tried several tweaks with the SMB shares. I followed this tutorial to mount permanently 4 SMB shares from my local NAS. To resume, I : edit /etc/fstab added a line like : //servername/sharename /media/windowsshare cifs credentials=/home/ubuntuusername/.smbcredentials,iocharset=utf8,file_mode=0777,dir_mode=0777 0 0 created a credentials file for security reasons in my home folder (explained in the tutorial) ~/.smbcredentials It work perfectly, they are automounted on each reboot, but when I logon, I all the time get 4 file explorer open with each share. It is possible to avoid these file explorer window to be opened on every reboot ? I guess it's related to X or via a explicit deny or these graphical mount, but I don't have any clues on how to proceed Thank you for your time,

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• Acer Aspire microphone issue

  - by Dr_Bunsen

  I have got an Acer Aspire 7750G: More info It has been running Ubuntu since I bought the laptop (12.10 as of now), but a few updates ago, I lost my microphone. It doesn't recognise the internal mic or the mic jack (although alsa seems to recognise it). I have been looking around, and I fixed it, but this was only temporary, after a reboot my mic was gone again. I haven't been able to find the fix, so I wanted to know whatever you guys know what I have to do to fix this. Thanks in advance.

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• Update Manager error 12.04

  - by Shannon Marisa

  I'm using Ubuntu 12.04. When attempting to run my Update Manager, it doesn't allow any of the updates to be loaded. Under "details" all it says is "patch". It won't even load anything when the Partial Upgrade option comes up. I thought that this Error in Update Manager would help me, but when I followed the instruction and looked for the "PUBKEY" in Terminal, there was none, it said "BADSIG" and "failed to fetch 11.10" instead and my Update Manager still doesn't update anything. I'm still new to the finer points of Ubuntu and could really use some advice. Did I do something wrong? Or I need to do a fresh install?

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• Are there jobs which are oriented towards optimisation programming or assembly

  - by jokoon

  3D engine programmers have to care a little about execution speed, but what about the programmers at ATI and nVidia ? How much do they need to optimize their driver applications ? Are there jobs out there who only purpose is execution speed and optimisation, or jobs for people to program only in assembly ? Please, no flame war about "premature optimisation is the root of all evil", I just want to know if such jobs exists, maybe in security ? In kernel programming ? Where ? Not at all ?

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• problems with graphic performance in Ubuntu 12.04

  - by Falk

  in advance: my English is not perfect ;) processor: Intel® Core™2 Duo CPU E8500 @ 3.16GHz × 2 memory: 3,9 GiB graphics: GeForce GTX 460 Ubuntu 12.04 32-Bit fresh installed (previously 11.10 32-Bit) driver: NVIDIAs accelerated Driver (Version current-updates) probelm: In Ubuntu 12.04 I have problems with the performance of the graphics (games for example: Volley Brwawl, Neverball, Beep and Minecraft), and effects of windows (always at minimize, maximize...) There are laggs at animations, and the laggs in games are extremely annoying. Problems occur only in Ubuntu 12.04, everything was good in 11.10. No Problems with YouTube videos, HD videos. Is there a solution? BBecause I have found nothing here in the Forum and on Google. Or is an update coming soonfor driver or whatever? (This Bug is already registered in Launchpad.) Thank you!

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• how to add programs to ubuntu without internet access

  - by captainandcoke

  I don't have internet access at my home and it takes me about a half hour to ride my bike to the library. I have downloaded .deb files to try to install at my home computer but everyone I have downloaded says it can't install because it depends on package X. The next day I will download package X and it will require package Y. Is there anyway to find out what ALL the sub-dependencies are for deb files? I have tried to boot from USB or External Hard drive on the library computers but the security settings prevent this. Also, I do not know anyone with a Linux computer.

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• HTTP Session Invalidation in Servlet/GlassFish

  - by reza_rahman

  HTTP session invalidation is something most of us take for granted and don't think much about. However for security and performance sensitive applications it is helpful to have at least a basic understanding of how it works in Servlets. In a brief code centric blog post Servlet specification lead Shing Wai Chan introduces the APIs for session invalidation and explains how you can fine tune the underlying reaper thread for session invalidation when it is needed in GlassFish 4. Don't hesitate to post a question here if the blog is not clear, this is a relatively esoteric topic...

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• Tips for developing with a remote team

  - by mVChr

  My company has corporate offices around the country and I have been hired under contract to work in one office while the rest of my team works in another. We are in the same time zone, but definitely remote. I have not met the team yet, but will be flying up there soon. What is your best advice for integrating and developing with this team? What are the most important priorities? Standard versioning control, e-mail, phone, conference call and IM are all available resources, however Google apps, Skype and the like are not for security reasons.

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• Recommendations for a network of student-related content

  - by Javier Marín

  I am running a network of websites with notes, homeworks, essays, etc. where users share their own content. I'm having real trouble with the latest Google updates (penguin, panda, etc) because the content is mainly poor-quality and with the same topic. For that reason, I want to create more websites and have more probabilites to appear in the SERPs. My question is: does Google analyzes related websites in order to exclude it from the results? I've think about distribute the websites around the world, in different hostings, but I'm afraid that Google would link it by their analytics, webmaster tools or adsense account, is that possible? What other recommendations do you have?

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• Unbuntu stuck at boot after update

  - by RandomUbuntuUser

  Well, I installed Ubuntu 11.10 via Wubi on my MSI U270. Everything was running fine, I even got fglrx working after I manually downloaded a .run and executed it. Then I thought of running the complete updates that were on the update manager. I did run it, it took a whole night to complete, I waited a bit as the part came where I had to click on "Restart now". I clicked it, after that I'm stuck at the purple screen with all dots lighted orange. I've been waiting for it to start up for more than half an hour, and there used to be occasional HDD blinks which isn't happening now. Should I reboot? Edit: After the restart not while restarting, forgot to mention that and by the way, is there a way to see anything that's happening just so I know that it ain't stuck?

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• Problems after distribution update

  - by Avariya

  I have Ubuntu 11.10. Yesterday I make some distribution updates with Update Manager. And now I can't start my Ubuntu. Video related: http://www.youtube.com/watch?v=nn2MT9h2muQ (you need 25th sec) 1. Starting Ubuntu(output on video) 2. Black screen 3. Then permanent dark gray screen Was related problem with updating from 11.04 to 11.10. Ufter that update Ubuntu not start too and I must reinstall Ubuntu. Help me pls and ask questions if needed.

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• For business information and web traffic T4 and Solaris 11 stand head and shoulders above the crowd

  - by rituchhibber

  Everyone is talking about encryption of business information and web traffic. T4 and Solaris 11 stand head and shoulders above the crowd. Each T4 chip has 8 crypto accelerators inside the chip - that means there are 32 in a T4-4.  These are faster and offer more algorithms than almost all standalone devices and it is all free with T4!  What are you waiting for?Please contact Lucy Hillman or Graham Scattergood for more details.Your weekly tea time soundbite of the latest UK news, updates and initiatives on the SPARC T Series servers. T4 good news, best practice and feedback is always welcome.

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• Is it possible to install Ubuntu 10.10 and/or Ubuntu 11.04 on a late 2009 iMac?

  - by Oliver

  I would like to install Ubuntu on my iMac 10,1 (21.5 inch display). I would prefer to instal Natty Narwhal, but would surely settle for Maverick Meerkat (which I have a install dvd of). I have an install of OS X Snow Leopard AND a Bootcamp Partition of Windows 7. I would like to keep all these partitions and setup a triple boot system. If it can work, I'm also wondering if it'd be safe to install all updates from the update manager once it's installed. Thank you in advance. :)

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• PeopleTools Collateral Available

  - by Matthew Haavisto

  We've posted a lot of documentation including presentations, white/red papers, data sheets, and other useful collateral on Oracle.com, a public site.  If you are seeking detailed information on a particular topic, this is a good place to start.  It's a bit hard to find so I'm posting it here. This resource library contains collateral on general PeopleTools, user experience and interaction--including the PeopleSoft Interaction Hub, platforms, security, life-cycle management, reporting and analytics, integration, and accessibility.  There are also links to video feature overviews, viewlets, and appcasts, and the latest release information. There is much valuable information here, so if you need information about PeopleTools and related information, start here.

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• Error : Could not display "obex://" when paired with a Nokia 3110c

  - by MobileDev123

  Hi, I have paired my nokia 3110c via bt on my pc, I can receive a file from my pc to the phone, but I can not browse the contents of phone from my computer. Here is the error message Error: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. Please select another viewer and try again. How can I transfer contents from my phone to my computer?

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• Two issues occur when you deploy an ASP.NET 2.0-based application on a server that is running IIS 7.

  979917 ... Two issues occur when you deploy an ASP.NET 2.0-based application on a server that is running IIS 7.0 or IIS 7.5 in Integrated modeThis RSS feed provided by kbAlerz.com.Visit kbAlertz.com to subscribe. It's 100% free and you'll be able to recieve e-mail or RSS updates for the technologies you pick from the Microsoft Knowledge Base....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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• Problems with Developer [closed]

  - by Concerned Client

  I engaged a developer who is developing a website for me. I am not happy with him and would like that once the website is ready, I transfer the duties of further development, seo and web admin to another developer. What do I need to be aware of? and what information do i need in terms of passwords etc? The website has been developed in word press and I have access to the CMS but I am not technical so i am not sure if there are security levels for the more technical people. thanks

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