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• Back up of Streaming server

  - by Maxwell

  I want to take a new streaming server for my website which generally holds videos and audio files. But how do we maintain backup of the streaming server if storage size is increasing day by day. Generally on Database servers, like Sql Server, backups can be easily taken and restored very easily as they do not occupy much space for medium range applications. On the other hand how can we take backup of streaming server? If the server fails, the there should be an alternative server / solution that should decrease downtime of the server. How is the back-end architecture of YouTube built to handle this?

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• STS 2.5.2 showing error error occurred during initialization of vm could not reserve enough space for object heap eclipse

  - by user1460079

  I am using STS2.5.5 with jdk 1.6 in my system with 32 BIT winx Xp it was working fine for few HRs when i installed it for the first time, after that when i restart STS it started showing exception Failed Initialize when i start the TC it throws hte exception error occurred during initialization of vm could not reserve enough space for object heap eclipse It is working fine in another system with same config, to resolve this if i delete STS and reinstall STS it works fine but again throws same error if i close STS and open it can anybody help me, i am also not able to change the size in my sts.ini if i increase memory and start STS then it will not start.

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• /tmp/ read-only

  - by Chirag

  When I'm trying delete some of the old eaccelerator files it gives me following errors rm: cannot remove `/tmp/eaccelerator/7/2/eaccelerator-0502.02065984': Read-only file system What can I do it fix it? Filesystem Size Used Avail Use% Mounted on /dev/sda2 226G 127G 88G 60% / /dev/sdc1 227G 102G 114G 48% /disk1 /dev/sda1 99M 18M 77M 19% /boot tmpfs 4.0G 0 4.0G 0% /dev/shm /dev/sdb1 459G 182G 255G 42% /home4 /usr/tmpDSK 485M 325M 135M 71% /tmp That's my output from the server. Also what commands can I use to unmount and mount it? And should I do it while my web server is running?

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• Google Top Geek E04

  Google Top Geek E04 In Spanish! Google Top Geek is a weekly show from Google Mexico. This week: 1. Esto es Google, el evento más grande e importante de Google en México, en su segunda edición, se llevó a cabo los días 13 y 14 de noviembre de 2012. Fue un gran evento dirigido a todo el ecosistema en México: desarrolladores, usuarios y negocios. Cerca de 3000 asistentes nos honraron con su presencia en Esto es Google a lo largo de dos intensos días, llenos de conferencias, paneles y espacios para conocer y acercarse a tecnología y startups. Mencionamos durante este segmento, ligas para aprender más de la importancia del mercado de móviles en México y el mundo: Go Mobile, para pasar tu sitio actual a una versión para móviles. The Mobile Playbook, con mucha información para tomar las mejores decisiones con respecto a móviles y tecnologías modernas. 2. De concursos de programación, de negocios hasta internships y trabajo de tiempo completo, Google ofrece una amplia gama de oportunidades en todo el mundo. por ejemplo, está por iniciar el concurso Google Code-in 2012, para chavos de preparatoria, con un formato similar al de Google summer of code, con 10 organizaciones de código abierto como mentoras. 3. Lanzamientos de la semana, el primero interesante para Gmail: búsquedas por tamaño, utilizando size:5m, larger: .., fechas flexibles, etc. En Google Drive ya puedes buscar por persona, no sólo los que han compartido contigo; sino los que involucran a una misma persona. Búsquedas de la semana Las <b>...</b> From: GoogleDevelopers Views: 15 2 ratings Time: 15:50 More in Science & Technology

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• Jenkins shows same information for all projects

  - by SuperCabbage

  I've been using Jenkins for the last month or so and what started out as a small issue has gotten worse and worse. I have 10 projects in Jenkins, all polling from different Git repos and building to different environments but they all show the same details on the dashboard. I can still build the projects, but I have to manually enter the URL to see any console output etc. I'm running 1.536 under Ubuntu 12.04, there's not much in the logs other than the following; Oct 22, 2013 2:21:19 PM WARNING jenkins.model.lazy.AbstractLazyLoadRunMap search JENKINS-15652 Assertion error #1: failing to load /data/builds #20 EXACT: lo=23,hi=9,size=23,size2=23 – Any ideas?

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• Unix Interview Question

  - by Rachel

  I am giving some interviews right now and recently I was asked this questions in Interview and I was not sure of the answer, in your opinion are this kind of questions worthwhile for Interview process and if yes than how would you go about approaching this kind of questions. How to get number of files in directory without using wc ? How to get all files in descending order on size ? What is the significance of ? in file searching ? Would appreciate if you can provide answers for this questions so that I could learn something about them as I am not sure for this questions.

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• Horrible performing RAID

  - by Philip

  I have a small GlusterFS Cluster with two storage servers providing a replicated volume. Each server has 2 SAS disks for the OS and logs and 22 SATA disks for the actual data striped together as a RAID10 using MegaRAID SAS 9280-4i4e with this configuration: http://pastebin.com/2xj4401J Connected to this cluster are a few other servers with the native client running nginx to serve files stored on it in the order of 3-10MB. Right now a storage server has a outgoing bandwith of 300Mbit/s and the busy rate of the raid array is at 30-40%. There are also strange side-effects: Sometimes the io-latency skyrockets and there is no access possible on the raid for 10 seconds. The file system used is xfs and it has been tuned to match the raid stripe size. Does anyone have an idea what could be the reason for such a bad performing array? 22 Disks in a RAID10 should deliver way more throughput.

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• How to rebuild a Li Ion laptop battery?

  - by spoulson

  I have an aging Gateway NX560XL laptop. The battery is toast and a new one, even aftermarket, starts at $130. So, to experiment, I began tearing apart the old battery to see what can be done. I found it used 8 standard size 18650 Li Ion cells arranged two cells parallel then in series (like: ====). Some online shopping revealed ~$7-13/ea replacements depending on mAh output. My plan is to load test to determine the bad cells and replace only those, as I read that typically only 1 or 2 may be bad. I'm proficient with soldering, however these cells are attached with welded tabs. Some of them broke during disassembly and I'm not sure how to reattach them. What I found online are cells like these that have solder tabs pre-welded to the ends so I can solder wires onto. Is there any guide available that provides the instructions and parts to do this kind of rebuild?

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• Could not log-in properly but shows no error in joomla

  - by saeha

  This is what I did, I added variables in \libraries\joomla\database\table\user.php: var $img_content= null; //contains the blob type data var $img_name = null; var $img_type = null; then I added this code in \components\com_user\controller.php: $file = JRequest::getVar( 'pic', '', 'files', 'array' ); if(isset($file['name'])) { jimport('joomla.filesystem.file'); $fileName = $file['name']; $tmpName = $file['tmp_name']; $fileSize = $file['size']; $fileType = $file['type']; $fp = fopen($tmpName, 'r'); $content = fread($fp, filesize($tmpName)); //$content = addslashes($content); fclose($fp); $user->set('img_name', $fileName); $user->set('img_type', $fileType); $user->set('img_content', $content); } that works fine, but I found this problem in logging in with the new user with an uploaded photo, other user with an empty img_content field could login properly. What happens is when I log-in using the user with uploaded photo, it's not redirecting properly it just return to log-in, but when i log-in through backend using other user which is super admin, i could see that user which appears as logged in. I started saving the images in the database because I am having problem with the directory when I have uploaded the site. I think the log-in was affected by the blob type data in the database. Could that be the problem? What could be the solution? -saeha

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• XNA - Finding boundaries in isometric tilemap

  - by Yheeky

  I have an issue with my 2D isometric engine. I'm using my own 2D camera class which works with matrices and need to find the tilemaps boundaries so the user always sees the map. Currently my map size is 100x100 (with 128x128 tiles) so the calculation (e.g. for the right boundary) is: var maxX = (TileMap.MapWidth + 1) * (TileMap.TileWidth / 2) - ViewSize.X; var maxX = (100 + 1) * (128 / 2) - 1360; // = 5104 pixels. This works fine while having scale factor of 1.0f but not for any other zoom factor. When I zoom out to 0.9f the right border should be at approx. 4954. I´m using the following code for transformation but I always get a wrong value: var maxXVector = new Vector2(maxX, 0); var maxXTransformed = Vector2.Transform(maxXVector, tempTransform).X; The result is 4593. Does anyone of you have an idea what I´m during wrong? Thanks for your help! Yheeky

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• Cross-platform, human-readable, du on root partition that truly ignores other filesystems

  - by nice_line

  I hate this so much: Linux builtsowell 2.6.18-274.7.1.el5 #1 SMP Mon Oct 17 11:57:14 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux df -kh Filesystem Size Used Avail Use% Mounted on /dev/mapper/mpath0p2 8.8G 8.7G 90M 99% / /dev/mapper/mpath0p6 2.0G 37M 1.9G 2% /tmp /dev/mapper/mpath0p3 5.9G 670M 4.9G 12% /var /dev/mapper/mpath0p1 494M 86M 384M 19% /boot /dev/mapper/mpath0p7 7.3G 187M 6.7G 3% /home tmpfs 48G 6.2G 42G 14% /dev/shm /dev/mapper/o10g.bin 25G 7.4G 17G 32% /app/SIP/logs /dev/mapper/o11g.bin 25G 11G 14G 43% /o11g tmpfs 4.0K 0 4.0K 0% /dev/vx lunmonster1q:/vol/oradb_backup/epmxs1q1 686G 507G 180G 74% /rpmqa/backup lunmonster1q:/vol/oradb_redo/bisxs1q1 4.0G 1.6G 2.5G 38% /bisxs1q/rdoctl1 lunmonster1q:/vol/oradb_backup/bisxs1q1 686G 507G 180G 74% /bisxs1q/backup lunmonster1q:/vol/oradb_exp/bisxs1q1 2.0T 1.1T 984G 52% /bisxs1q/exp lunmonster2q:/vol/oradb_home/bisxs1q1 10G 174M 9.9G 2% /bisxs1q/home lunmonster2q:/vol/oradb_data/bisxs1q1 52G 5.2G 47G 10% /bisxs1q/oradata lunmonster1q:/vol/oradb_redo/bisxs1q2 4.0G 1.6G 2.5G 38% /bisxs1q/rdoctl2 ip-address1:/vol/oradb_home/cspxs1q1 10G 184M 9.9G 2% /cspxs1q/home ip-address2:/vol/oradb_backup/cspxs1q1 674G 314G 360G 47% /cspxs1q/backup ip-address2:/vol/oradb_redo/cspxs1q1 4.0G 1.5G 2.6G 37% /cspxs1q/rdoctl1 ip-address2:/vol/oradb_exp/cspxs1q1 4.1T 1.5T 2.6T 37% /cspxs1q/exp ip-address2:/vol/oradb_redo/cspxs1q2 4.0G 1.5G 2.6G 37% /cspxs1q/rdoctl2 ip-address1:/vol/oradb_data/cspxs1q1 160G 23G 138G 15% /cspxs1q/oradata lunmonster1q:/vol/oradb_exp/epmxs1q1 2.0T 1.1T 984G 52% /epmxs1q/exp lunmonster2q:/vol/oradb_home/epmxs1q1 10G 80M 10G 1% /epmxs1q/home lunmonster2q:/vol/oradb_data/epmxs1q1 330G 249G 82G 76% /epmxs1q/oradata lunmonster1q:/vol/oradb_redo/epmxs1q2 5.0G 609M 4.5G 12% /epmxs1q/rdoctl2 lunmonster1q:/vol/oradb_redo/epmxs1q1 5.0G 609M 4.5G 12% /epmxs1q/rdoctl1 /dev/vx/dsk/slaxs1q/slaxs1q-vol1 183G 17G 157G 10% /slaxs1q/backup /dev/vx/dsk/slaxs1q/slaxs1q-vol4 173G 58G 106G 36% /slaxs1q/oradata /dev/vx/dsk/slaxs1q/slaxs1q-vol5 75G 952M 71G 2% /slaxs1q/exp /dev/vx/dsk/slaxs1q/slaxs1q-vol2 9.8G 381M 8.9G 5% /slaxs1q/home /dev/vx/dsk/slaxs1q/slaxs1q-vol6 4.0G 1.6G 2.2G 42% /slaxs1q/rdoctl1 /dev/vx/dsk/slaxs1q/slaxs1q-vol3 4.0G 1.6G 2.2G 42% /slaxs1q/rdoctl2 /dev/mapper/appoem 30G 1.3G 27G 5% /app/em Yet, I equally, if not quite a bit more, also hate this: SunOS solarious 5.10 Generic_147440-19 sun4u sparc SUNW,SPARC-Enterprise Filesystem size used avail capacity Mounted on kiddie001Q_rpool/ROOT/s10s_u8wos_08a 8G 7.7G 1.3G 96% / /devices 0K 0K 0K 0% /devices ctfs 0K 0K 0K 0% /system/contract proc 0K 0K 0K 0% /proc mnttab 0K 0K 0K 0% /etc/mnttab swap 15G 1.8M 15G 1% /etc/svc/volatile objfs 0K 0K 0K 0% /system/object sharefs 0K 0K 0K 0% /etc/dfs/sharetab fd 0K 0K 0K 0% /dev/fd kiddie001Q_rpool/ROOT/s10s_u8wos_08a/var 31G 8.3G 6.6G 56% /var swap 512M 4.6M 507M 1% /tmp swap 15G 88K 15G 1% /var/run swap 15G 0K 15G 0% /dev/vx/dmp swap 15G 0K 15G 0% /dev/vx/rdmp /dev/dsk/c3t4d4s0 3 20G 279G 41G 88% /fs_storage /dev/vx/dsk/oracle/ora10g-vol1 292G 214G 73G 75% /o10g /dev/vx/dsk/oec/oec-vol1 64G 33G 31G 52% /oec/runway /dev/vx/dsk/oracle/ora9i-vol1 64G 33G 31G 59% /o9i /dev/vx/dsk/home 23G 18G 4.7G 80% /export/home /dev/vx/dsk/dbwork/dbwork-vol1 292G 214G 73G 92% /db03/wk01 /dev/vx/dsk/oradg/ebusredovol 2.0G 475M 1.5G 24% /u21 /dev/vx/dsk/oradg/ebusbckupvol 200G 32G 166G 17% /u31 /dev/vx/dsk/oradg/ebuscrtlvol 2.0G 475M 1.5G 24% /u20 kiddie001Q_rpool 31G 97K 6.6G 1% /kiddie001Q_rpool monsterfiler002q:/vol/ebiz_patches_nfs/NSA0304 203G 173G 29G 86% /oracle/patches /dev/odm 0K 0K 0K 0% /dev/odm The people with the authority don't rotate logs or delete packages after install in my environment. Standards, remediation, cohesion...all fancy foreign words to me. ============== How am I supposed to deal with / filesystem full issues across multiple platforms that have a devastating number of mounts? On Red Hat el5, du -x apparently avoids traversal into other filesystems. While this may be so, it does not appear to do anything if run from the / directory. On Solaris 10, the equivalent flag is du -d, which apparently packs no surprises, allowing Sun to uphold its legacy of inconvenience effortlessly. (I'm hoping I've just been doing it wrong.) I offer up for sacrifice my Frankenstein's monster. Tell me how ugly it is. Tell me I should download forbidden 3rd party software. Tell me I should perform unauthorized coreutils updates, piecemeal, across 2000 systems, with no single sign-on, no authorized keys, and no network update capability. Then, please help me make this bastard better: pwd / du * | egrep -v "$(echo $(df | awk '{print $1 "\n" $5 "\n" $6}' | \ cut -d\/ -f2-5 | egrep -v "[0-9]|^$|Filesystem|Use|Available|Mounted|blocks|vol|swap")| \ sed 's/ /\|/g')" | egrep -v "proc|sys|media|selinux|dev|platform|system|tmp|tmpfs|mnt|kernel" | \ cut -d\/ -f1-2 | sort -k2 -k1,1nr | uniq -f1 | sort -k1,1n | cut -f2 | xargs du -shx | \ egrep "G|[5-9][0-9]M|[1-9][0-9][0-9]M" My biggest failure and regret is that it still requires a single character edit for Solaris: pwd / du * | egrep -v "$(echo $(df | awk '{print $1 "\n" $5 "\n" $6}' | \ cut -d\/ -f2-5 | egrep -v "[0-9]|^$|Filesystem|Use|Available|Mounted|blocks|vol|swap")| \ sed 's/ /\|/g')" | egrep -v "proc|sys|media|selinux|dev|platform|system|tmp|tmpfs|mnt|kernel" | \ cut -d\/ -f1-2 | sort -k2 -k1,1nr | uniq -f1 | sort -k1,1n | cut -f2 | xargs du -shd | \ egrep "G|[5-9][0-9]M|[1-9][0-9][0-9]M" This will exclude all non / filesystems in a du search from the / directory by basically munging an egrepped df from a second pipe-delimited egrep regex subshell exclusion that is naturally further excluded upon by a third egrep in what I would like to refer to as "the whale." The munge-fest frantically escalates into some xargs du recycling where -x/-d is actually useful, and a final, gratuitous egrep spits out a list of directories that almost feels like an accomplishment: Linux: 54M etc/gconf 61M opt/quest 77M opt 118M usr/ ##===\ 149M etc 154M root 303M lib/modules 313M usr/java ##====\ 331M lib 357M usr/lib64 ##=====\ 433M usr/lib ##========\ 1.1G usr/share ##=======\ 3.2G usr/local ##========\ 5.4G usr ##<=============Ascending order to parent 94M app/SIP ##<==\ 94M app ##<=======Were reported as 7gb and then corrected by second du with -x. Solaris: 63M etc 490M bb 570M root/cores.ric.20100415 1.7G oec/archive 1.1G root/packages 2.2G root 1.7G oec Guess what? It's really slow. Edit: Are there any bash one-liner heroes out there than can turn my bloated abomination into divine intervention, or at least something resembling gingerly copypasta?

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• How to uncompress a 9GB file in Windows FAT32

  - by Kashif

  I have a 2GB RAR file that contains a 9GB video file. I'm using a FAT32 file system. Now I want to unzip that file but after 4GB I get an error due to the FAT32 file size limit. Now I want to know that how I can extract that video? I know that one way is to convert my partition to NTFS but I don't want to follow that way. I've also tried 7-zip but that again gives error after 4GB. One other way is to split that file but I don't know how I can split a video file that is zipped. So any idea please? How can I get rid of this problem.

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• CodePlex Daily Summary for Tuesday, November 30, 2010

  CodePlex Daily Summary for Tuesday, November 30, 2010Popular ReleasesSense/Net Enterprise Portal & ECMS: SenseNet 6.0.1 Community Edition: Sense/Net 6.0.1 Community Edition This half year we have been working quite fiercely to bring you the long-awaited release of Sense/Net 6.0. Download this Community Edition to see what we have been up to. These months we have worked on getting the WebCMS capabilities of Sense/Net 6.0 up to par. New features include: New, powerful page and portlet editing experience. HTML and CSS cleanup, new, powerful site skinning system. Upgraded, lightning-fast indexing and query via Lucene. Limita...Minecraft GPS: Minecraft GPS 1.1.1: New Features Compass! New style. Set opacity on main window to allow overlay of Minecraft. Open World in any folder. Fixes Fixed style so listbox won't grow the window size. Fixed open file dialog issue on non-vista kernel machines.DotSpatial: DotSpatial 11-28-2001: This release introduces some exciting improvements. Support for big raster, both in display and changing the scheme. Faster raster scheme creation for all rasters. Caching of the "sample" values so once obtained the raster symbolizer dialog loads faster. Reprojection supported for raster and image classes. Affine transform fully supported for images and rasters, so skewed images are now possible. Projection uses better checks when loading unprojected layers. GDAL raster support f...Virtu: Virtu 0.9.0: Source Requirements.NET Framework 4 Visual Studio 2010 or Visual Studio 2010 Express Silverlight 4 Tools for Visual Studio 2010 Windows Phone 7 Developer Tools (which includes XNA Game Studio 4) Binaries RequirementsSilverlight 4 .NET Framework 4 XNA Framework 4SuperWebSocket: SuperWebSocket(60438): It is the first release of SuperWebSocket. Because it is base on SuperSocket, most features of SuperSocket are supported in SuperWebSocket. The source code include a LiveChat demo.MDownloader: MDownloader-0.15.25.7002: Fixed updater Fixed FileServe Fixed LetItBitNotepad.NET: Notepad.NET 0.7 Preview 1: Whats New?* Optimized Code Generation: Which means it will run significantly faster. * Preview of Syntax Highlighting: Only VB.NET highlighting is supported, C# and Ruby will come in Preview 2. * Improved Editing Updates (when the line number, etc updates) to be more graceful. * Recent Documents works! * Images can be inserted but they're extremely large. Known Bugs* The Update Process hangs: This is a bug apparently spawning since 0.5. It will be fixed in Preview 2. Until then, perform a fr...Cropper: 1.9.4: Mostly fixes for issues with a few feature requests. Fixed Issues 2730 & 3638 & 14467 11044 11447 11448 11449 14665 Implemented Features 6123 11581PFC: PFC for PB 11.5: This is just a migration from the 11.0 code. No changes have been made yet (and they are needed) for it to work properly with 11.5.PDF Rider: PDF Rider 0.5: This release does not add any new feature for pdf manipulation, but enables automatic updates checking, so it is reccomended to install it in order to stay updated with next releases. Prerequisites * Microsoft Windows Operating Systems (XP - Vista - 7) * Microsoft .NET Framework 3.5 runtime * A PDF rendering software (i.e. Adobe Reader) that can be opened inside Internet Explorer. Installation instructionsChoose one of the following methods: 1. Download and run the "pdfRider0...BCLExtensions: BCL Extensions v1.0: The files associated with v1.0 of the BCL Extensions library.XamlQuery/WPF - The Write Less, Do More, WPF Library: XamlQuery-WPF v1.2 (Runtime, Source): This is the first release of popular XamlQuery library for WPF. XamlQuery has already gained recognition among Silverlight developers.Math.NET Numerics: Beta 1: First beta of Math.NET Numerics. Only contains the managed linear algebra provider. Beta 2 will include the native linear algebra providers along with better documentation and examples.Microsoft All-In-One Code Framework: Visual Studio 2010 Code Samples 2010-11-25: Code samples for Visual Studio 2010Wii Backup Fusion: Wii Backup Fusion 0.8.5 Beta: - WBFS repair (default) options fixed - Transfer to image fixed - Settings ui widget names fixed - Some little bug fixes You need to reset the settings! Delete WiiBaFu's config file or registry entries on windows: Linux: ~/.config/WiiBaFu/wiibafu.conf Windows: HKEY_CURRENT_USER\Software\WiiBaFu\wiibafu Mac OS X: ~/Library/Preferences/com.wiibafu.wiibafu.plist Caution: This is a BETA version! Errors, crashes and data loss not impossible! Use in test environments only, not on productive syste...Minemapper: Minemapper v0.1.3: Added process count and world size calculation progress to the status bar. Added View->'Status Bar' menu item to show/hide the status bar. Status bar is automatically shown when loading a world. Added a prompt, when loading a world, to use or clear cached images.Sexy Select: sexy select v0.4: Changes in v0.4 Added method : elements. This returns all the option elements that are currently added to the select list Added method : selectOption. This method accepts two values, the element to be modified and the selected state. (true/false)Deep Zoom for WPF: First Release: This first release of the Deep Zoom control has the same source code, binaries and demos as the CodeProject article (http://www.codeproject.com/KB/WPF/DeepZoom.aspx).BlogEngine.NET: BlogEngine.NET 2.0 RC: This is a Release Candidate version for BlogEngine.NET 2.0. The most current, stable version of BlogEngine.NET is version 1.6. Find out more about the BlogEngine.NET 2.0 RC here. If you want to extend or modify BlogEngine.NET, you should download the source code. To get started, be sure to check out our installation documentation and the installation screencast. If you are upgrading from a previous version, please take a look at the Upgrading to BlogEngine.NET 2.0 instructions. As this ...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Excel Template, version 1.0.1.156: The NodeXL Excel template displays a network graph using edge and vertex lists stored in an Excel 2007 or Excel 2010 workbook. What's NewThis release adds a feature for aggregating the overall metrics in a folder full of NodeXL workbooks, adds geographical coordinates to the Twitter import features, and fixes a memory-related bug. See the Complete NodeXL Release History for details. Please Note: There is a new option in the setup program to install for "Just Me" or "Everyone." Most people...New ProjectsActiveRecordTest: ActiveRecordTest is a sample project that is really a quick guide for start using Castle ActiveRecord within an ASP.NET web application.BacteriaManage: just test codeplexDS CMS: Diamond Shop - open source project. 1. ASP.NET MVC 3.0 2. Entity Framework 3. Jquery 4. LinqGeneral Media Access WebService: This project is focused on building a general purpose media access webservice based on WCF.JavaEE server for XUNU: C'est le serveur internet du site à ChoupieLearning management system: Learning management system to help teachers on their work.LogWriterReader using Named pipe: LogWriterReader using Named pipeNMix: NMix???EntLib，NHibernate，log4net??????????，????????????????，?????????、?????、????、????、?????????。Nosso Rico Dinheirinho: Financial control system like Microsoft Money, but via web.Post Template: Post Template (for now) is for craigslist posters looking to make their posts more visually appealing. Abstracting the styling and layout details of HTML and CSS, Post Template eliminates the need to know these languages when posting. Post Template is mostly written in C#.SharePoint Silverlight Clock: SharePoint Silverlight ClockSilverlight MVVM wizard using Caliburn Micro: This MVVM style Silverlight 4 wizard shows some Caliburn Micro features, as well as the use of MEF and MVVM style unit testing. The UI and code are based on the code accompanying the "Code Project" article "Creating an Internationalized Wizard in WPF" from dec. 2008.Spider Framework: A ruler-based spider framework developing with C#syx Open Source Project: syx Open Source ProjectTigerCat: TigerCat will support application development as infrastructure and RAD tools.TitleNetSolution: This my team Solution.!Uploadert: UploadertWidget Suite for DotNetNuke: This project is intended to hold a suite of useful widgets to make your skinning easier, and raise the level of interactivity with DotNetNuke website visitors.ZenBridge for Picasa: ZenBridge for Picasa makes it easy for Zenfolio users to upload edited images directly to a chosen Zenfolio gallery. It's developed in C#.NET 4.

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• How to use the Nautilus search option

  - by Luis Alvarado

  In Nautilus if I press CTRL+F I get a search box that helps me search in the current directory and sub directories for specific names, but what if I want to: Find ALL files (including files without extensions) Find a file without an extension (Without the dot symbol or without any other name/extension separator) Find a file with/without a special character Find all files that start/not start with a character Find all files that end/not end with a character Find all files that start/no start with a character but end/not end with a character Find only files/folders Find files with specific text in them Find files with less/more/equal than/to X size Find files modified/created in X date All of this searches in the Nautilus search box I mentioned before. I ask this since the KDE's search is much better in this and gives pretty good freedom in searching for virtually anything, so I might not be learning how to use the Nautilus search option correctly. Note that I am talking about the first search done since some of this options show AFTER a search is done so the user can narrow it down more by doing a more specific search inside the Search results (for the first search). I am asking here how to do any of the search options I mentioned above in the first search.

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• How can I shrink the Address toolbar in the Task Bar?

  - by Iszi

  I like being able to run commands straight from my Task Bar. So, I've enabled the Address toolbar on my new Windows 7 system - just like I had on my old XP system. However, the bar seems to have a mandatory minimum length that's a bit longer than I'd prefer. It's about twice as long, if memory serves, as the minimum size allowed in XP. Is there any way I can adjust this minimum length, through a Registry key or some other means? (Note: I've also got a related question, about removing the Refresh button at the end of the bar.) EDIT: For clarity, I'm adding a screenshot. The toolbar I want to shorten is the one circled below, with an empty text-entry field that has a drop-down and "Refresh" button. I currently have it positioned between a Quick Launch toolbar and the Taskbar. On the far side of the Taskbar, before the System Tray, is a Desktop toolbar.

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• rsyslog from Heroku drain creates empty log files

  - by Jeff Lee

  I'm sending logs from my Heroku app to an rsyslog server, but the resulting log files seem to come up empty. The rsyslog configuration for receiving remote messages is as follows: $template RemoteDailyLog,"/var/log/remote/%hostname%/%$year%/%$month%/%$day%.log" :fromhost-ip, !isequal, "127.0.0.1" -?RemoteDailyLog & ~ My complete rsyslog configuration is available in this paste. This configuration appears to create the directories correctly. I see the Heroku app's logging hostname (of the form "d.xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx") appear in /var/log on the rsyslog host, which implies that log messages are successfully making it to the logging daemon, but the resulting logfiles are zero-size. I'm guessing the issue is with rsyslog, rather than Heroku, but I'm not sure where to look next.

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• Common Live Upgrade problems

  - by user12611829

  As I have worked with customers deploying Live Upgrade in their environments, several problems seem to surface over and over. With this blog article, I will try to collect these troubles, as well as suggest some workarounds. If this sounds like the beginnings of a Wiki, you would be right. At present, there is not enough material for one, so we will use this blog for the time being. I do expect new material to be posted on occasion, so if you wish to bookmark it for future reference, a permanent link can be found here. Live Upgrade copies over ZFS root clone This was introduced in Solaris 10 10/09 (u8) and the root of the problem is a duplicate entry in the source boot environments ICF configuration file. Prior to u8, a ZFS root file system was not included in /etc/vfstab, since the mount is implicit at boot time. Starting with u8, the root file system is included in /etc/vfstab, and when the boot environment is scanned to create the ICF file, a duplicate entry is recorded. Here's what the error looks like. # lucreate -n s10u9-baseline Checking GRUB menu... System has findroot enabled GRUB Analyzing system configuration. Comparing source boot environment file systems with the file system(s) you specified for the new boot environment. Determining which file systems should be in the new boot environment. Updating boot environment description database on all BEs. Updating system configuration files. Creating configuration for boot environment . Source boot environment is . Creating boot environment . Creating file systems on boot environment . Creating file system for in zone on . The error indicator ----- /usr/lib/lu/lumkfs: test: unknown operator zfs Populating file systems on boot environment . Checking selection integrity. Integrity check OK. Populating contents of mount point . This should not happen ------ Copying. Ctrl-C and cleanup If you weren't paying close attention, you might not even know this is an error. The symptoms are lucreate times that are way too long due to the extraneous copy, or the one that alerted me to the problem, the root file system is filling up - again thanks to a redundant copy. This problem has already been identified and corrected, and a patch (121431-58 or later for x86, 121430-57 for SPARC) is available. Unfortunately, this patch has not yet made it into the Solaris 10 Recommended Patch Cluster. Applying the prerequisite patches from the latest cluster is a recommendation from the Live Upgrade Survival Guide blog, so an additional step will be required until the patch is included. Let's see how this works. # patchadd -p | grep 121431 Patch: 121429-13 Obsoletes: Requires: 120236-01 121431-16 Incompatibles: Packages: SUNWluzone Patch: 121431-54 Obsoletes: 121436-05 121438-02 Requires: Incompatibles: Packages: SUNWlucfg SUNWluu SUNWlur # unzip 121431-58 # patchadd 121431-58 Validating patches... Loading patches installed on the system... Done! Loading patches requested to install. Done! Checking patches that you specified for installation. Done! Approved patches will be installed in this order: 121431-58 Checking installed patches... Executing prepatch script... Installing patch packages... Patch 121431-58 has been successfully installed. See /var/sadm/patch/121431-58/log for details Executing postpatch script... Patch packages installed: SUNWlucfg SUNWlur SUNWluu # lucreate -n s10u9-baseline Checking GRUB menu... System has findroot enabled GRUB Analyzing system configuration. INFORMATION: Unable to determine size or capacity of slice . Comparing source boot environment file systems with the file system(s) you specified for the new boot environment. Determining which file systems should be in the new boot environment. INFORMATION: Unable to determine size or capacity of slice . Updating boot environment description database on all BEs. Updating system configuration files. Creating configuration for boot environment . Source boot environment is . Creating boot environment . Cloning file systems from boot environment to create boot environment . Creating snapshot for on . Creating clone for on . Setting canmount=noauto for in zone on . Saving existing file in top level dataset for BE as //boot/grub/menu.lst.prev. Saving existing file in top level dataset for BE as //boot/grub/menu.lst.prev. Saving existing file in top level dataset for BE as //boot/grub/menu.lst.prev. File propagation successful Copied GRUB menu from PBE to ABE No entry for BE in GRUB menu Population of boot environment successful. Creation of boot environment successful. This time it took just a few seconds. A cursory examination of the offending ICF file (/etc/lu/ICF.3 in this case) shows that the duplicate root file system entry is now gone. # cat /etc/lu/ICF.3 s10u8-baseline:-:/dev/zvol/dsk/panroot/swap:swap:8388608 s10u8-baseline:/:panroot/ROOT/s10u8-baseline:zfs:0 s10u8-baseline:/vbox:pandora/vbox:zfs:0 s10u8-baseline:/setup:pandora/setup:zfs:0 s10u8-baseline:/export:pandora/export:zfs:0 s10u8-baseline:/pandora:pandora:zfs:0 s10u8-baseline:/panroot:panroot:zfs:0 s10u8-baseline:/workshop:pandora/workshop:zfs:0 s10u8-baseline:/export/iso:pandora/iso:zfs:0 s10u8-baseline:/export/home:pandora/home:zfs:0 s10u8-baseline:/vbox/HardDisks:pandora/vbox/HardDisks:zfs:0 s10u8-baseline:/vbox/HardDisks/WinXP:pandora/vbox/HardDisks/WinXP:zfs:0 Solaris 10 9/10 introduces new autoregistration file This one is actually mentioned in the Oracle Solaris 9/10 release notes. I know, I hate it when that happens too. Here's what the "error" looks like. # luupgrade -u -s /mnt -n s10u9-baseline System has findroot enabled GRUB No entry for BE in GRUB menu Copying failsafe kernel from media. 61364 blocks miniroot filesystem is Mounting miniroot at ERROR: The auto registration file does not exist or incomplete. The auto registration file is mandatory for this upgrade. Use -k argument along with luupgrade command. autoreg_file is path to auto registration information file. See sysidcfg(4) for a list of valid keywords for use in this file. The format of the file is as follows. oracle_user=xxxx oracle_pw=xxxx http_proxy_host=xxxx http_proxy_port=xxxx http_proxy_user=xxxx http_proxy_pw=xxxx For more details refer "Oracle Solaris 10 9/10 Installation Guide: Planning for Installation and Upgrade". As with the previous problem, this is also easy to work around. Assuming that you don't want to use the auto-registration feature at upgrade time, create a file that contains just autoreg=disable and pass the filename on to luupgrade. Here is an example. # echo "autoreg=disable" /var/tmp/no-autoreg # luupgrade -u -s /mnt -k /var/tmp/no-autoreg -n s10u9-baseline System has findroot enabled GRUB No entry for BE in GRUB menu Copying failsafe kernel from media. 61364 blocks miniroot filesystem is Mounting miniroot at ####################################################################### NOTE: To improve products and services, Oracle Solaris communicates configuration data to Oracle after rebooting. You can register your version of Oracle Solaris to capture this data for your use, or the data is sent anonymously. For information about what configuration data is communicated and how to control this facility, see the Release Notes or www.oracle.com/goto/solarisautoreg. INFORMATION: After activated and booted into new BE , Auto Registration happens automatically with the following Information autoreg=disable ####################################################################### Validating the contents of the media . The media is a standard Solaris media. The media contains an operating system upgrade image. The media contains version . Constructing upgrade profile to use. Locating the operating system upgrade program. Checking for existence of previously scheduled Live Upgrade requests. Creating upgrade profile for BE . Checking for GRUB menu on ABE . Saving GRUB menu on ABE . Checking for x86 boot partition on ABE. Determining packages to install or upgrade for BE . Performing the operating system upgrade of the BE . CAUTION: Interrupting this process may leave the boot environment unstable or unbootable. The Live Upgrade operation now proceeds as expected. Once the system upgrade is complete, we can manually register the system. If you want to do a hands off registration during the upgrade, see the Oracle Solaris Auto Registration section of the Oracle Solaris Release Notes for instructions on how to do that. Technocrati Tags: Oracle Solaris Patching Live Upgrade var sc_project=1193495; var sc_invisible=1; var sc_security="a46f6831";

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• Why is Rhythmbox becoming the default (again)?

  - by Christoph

  So, it seems with 12.04, they're switching back to Rhythmbox, after switching from Rhythmbox a year ago. I don't get why. They say that it's because of a blocking bug in GTK3# (if I understand that correctly), but that's just one bug, and in the same breath they say RB is not well maintained. It seems Ubuntu guys were dissatisfied with Banshee in some way, but apparently the Banshee guys were never notified of any problems. Also, it can't be to save disc space by dropping mono, because at the same day it was announced that the install disc will be enlarged by 50MB. Also, isn't it a bit shortsighted to push Banshee for default inclusion, and then drop it again a year later? How is that a sustainable use of dev resources, or consistent? Apparently there was quite some heavy effort by banshee devs - David Nielsen used the term "bending over backwards for Ubuntu" iirc. In summary: Can anyone shed more light on this? Related question: Why is Banshee becoming the default? Sources: http://www.omgubuntu.co.uk/2011/11/banshee-tomboy-and-mono-dropped-from-ubuntu-12-04-cd/ http://www.omgubuntu.co.uk/2011/11/rhythmbox-to-return-as-ubuntu-12-04-default-music-app/ http://www.omgubuntu.co.uk/2011/11/ubuntu-12-04-disc-size-to-be-750mb/ http://summit.ubuntu.com/uds-p/meeting/19442/desktop-p-default-apps/ http://banshee-media-player.2283330.n4.nabble.com/banshee-being-dropped-from-ubuntu-because-of-GTK3-support-td3985298.html

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• Z Order in 2D with orthographic projection and texture atlas

  - by Carbon Crystal

  I am working with a 2D game in OpenGL ES and have a question about z-order together with a texture atlas. I am using an orthographic projection because I want pixel-perfect rendering of 2D sprites, however from what I can determine the draw order is really the only thing that will determine which textures (sprites) appear above or below their neighbors. That is, the "z-index" is a function of the order in which the textures are drawn as opposed to the z coordinate on the vertex array being drawn. So.. I have a texture atlas to save binding multiple textures for each draw call but this immediately creates a problem if there is more than one atlas in play. If I need to draw textures from more than one atlas (typically the case if I have too many sprites to fit in a single atlas of a reasonable size), then I can't maintain a "draw order" across atlases unless I want to bind/unbind the atlas textures more than once.. which kinda defeats the purpose. Does anyone have any clues as to what the best approach is here? Currently I'm running under an assumption that I will have to declare different fixed "depths" (e.g foreground, background etc) in my 2D scene and assume that the z-order for sprites at a given depth is the same. Then I can have as many atlases as I need at each depth and simply draw the depths in order (along with their associated atlases) I'd love to hear what other people are doing.

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• What happens to remounted data/directories

  - by cauon

  According to suggestions in this post I am trying to improve my system to run better with a Solid State Drive. But regarding to RAMdisks and /etc/fstab usage I have some understanding problems coming up. So let's say I add the following lines to /etc/fstab tmpfs /tmp tmpfs defaults,noatime,nodiratime,mode=1777 0 0 tmpfs /var/spool tmpfs defaults,noatime,nodiratime,mode=1777 0 0 tmpfs /var/tmp tmpfs defaults,noatime,nodiratime,mode=1777 0 0 tmpfs /var/log tmpfs defaults,noatime,nodiratime,mode=0755 0 0 I know that on startup these locations should now get mounted into the RAM (hopefully). But what happens to the physical space that was mounted on those places before? Is it gone? Will it be back when I edit my /etc/fstab back to the Version without tmpfs? Will the space still be allocated on my SSD in a way that I can't use it for any other data? Sometimes it is suggested to add the following line, too: none /var/cache aufs dirs=/tmp:/var/cache=ro 0 0 What does this actually do? I noticed that /var/cache takes almost 1GB of space on my harddisk. So should i clear the directory before activating this line? (this is related to the former question) This causes me some confusions and I hope you can give me some clarifications. UPDATE I've downloaded a image with 600MB in size into /tmp that is mounted with the tmpfs settings above. Now I wanted to compare the RAM usage before and after the download. I expect the RAM usage to be increased by 600MB after the download. But the System Monitoring Tool showed me no changes at all. How can this be? Does tmpfs work other than I actually expect it to?

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• Puppet: how to use data from a MySQL table in Puppet 3.0 templates?

  - by Luke404

  I have some data whose source-of-truth is in a MySQL database, size is expected to max out at the some-thousands-rows range (in a worst-case scenario) and I'd like to use puppet to configure files on some servers with that data (mostly iterating through those rows in a template). I'm currently using Puppet 3.0.x, and I cannot change the fact that MySQL will be the authoritative source for that data. Please note, data comes from external sources and not from puppet or from the managed nodes. What possible approaches are there? Which one would you recommend? Would External Node Classifiers be useful here? My "last resort" would be regularly dumping the table to a YAML file and reading that through Hiera to a Puppet template, or to directly dump the table in one or more pre-formatted text file(s) ready to be copied to the nodes. There is an unanswered question on SF about system users but the fundamental issue is probably similar to mine - he's trying to get data out of MySQL.

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• Screen flickering when using midrange brightness values on Dell XPS

  - by Eliran Malka

  After a fresh Ubuntu install on my laptop, I discovered the function keys for screen brightness control (Fn+F4 and Fn+F5) are not working. Digging around here, I managed to get it to work by following the solution suggested on this post and that one, but alas — after applying it, a strange problem occurred: Setting the brightness level to any value other than minimum or maximum, the screen starts flickering back and forth from the selected level to full brightness, apparently due to Dell's power saver attempting to dim the screen to adjust the brightness levels. I looked up for a solution here on the site, and possibly everywhere, with no avail. Also tried: To manually control the brightness by configuring the ACPI level (setting values by echo [some_value] | sudo tee /sys/class/backlight/[vendor]_backlight/[some_key], without success. Installing the Intel graphics driver, thinking it's missing. Realized it's installed out of the box by installing Mesa Utils. How to resolve this? Environment Model: Dell Studio XPS 13 OS: Windows 7 64bit / Ubuntu 12.04 32bit (dual boot) Graphics Driver: Intel HD 3000 (Sandybridge Mobile x86/MMX/SSE2) lshw -C display output: *-display description: VGA compatible controller product: 2nd Generation Core Processor Family Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:47 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:2000(size=64)

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• Read On Phone Pushes Data from Your Desktop to the Appropriate Android App

  - by ETC

  Read On Phone is a free Android application that intelligently pushes data to your phone from your bowser. Rather than simply opening the URL on your phone, it opens the appropriate application for the task and formats text. Most send-to-phone type tools simply take the URL of the web page you’re looking at on your computer and shuttle it to your phone. Read On Phone is a more active and effective tool. When you send a page that is text, it formats the text for easy reading on your phone. When you send a YouTube video, map, or telephone number, it opens up the appropriate tool on your phone such as your YouTube viewer, Google Maps, or your phone dialer. In addition to that handy functionality Read On Phone also includes adjustments for day and night reading, font size, auto-scrolling, and pagination. Read On Phone is available as both a Chrome extension and as a bookmarklet for cross-browser use. Hit up the link below for additional information. Read On Phone Latest Features How-To Geek ETC Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) Read On Phone Pushes Data from Your Desktop to the Appropriate Android App MetroTwit is a Sleek Native Twitter Client for Your Windows System Make Efficient Use of Tab Bar Space by Customizing Tab Width in Firefox See the Geeky Work Done Behind the Scenes to Add Sounds to Movies [Video] Use a Crayon to Enhance Engraved Lettering on Electronics Adult Swim Brings Their Programming Lineup to iOS Devices

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• Should Professional Development occur on company time?

  - by jshu

  As a first-time part-time software developer at a small consulting company, I'm struggling to organise time to further my own software development knowledge - whether that's reading a book, keeping up with the popular questions on StackOverflow, researching a technology we're using in-depth, or following the front page of Hacker News. I can see results borne from my self-allocated study time, but listing and demonstrating the skills and knowledge gained through Professional Development is difficult. The company does not have any defined PD policy, and there's a lot of pressure to get something deliverable done now! when working for consultants. I've checked what my coworkers do, and they don't appear to allocate any time to self-improvement; they just work at the problems they're given, looking up specific MSDN references, code samples, and the like as they need them. I realise that PD policy is going to vary across companies of different size and culture, and a company like my own is probably a bit of an edge case. I'd love to hear views and experiences from more seasoned developers; especially those who have to make the PD policy choices in their team or company. I'd also like to learn about the more radical approaches to PD, even if they're completely out there; it's always interesting to see what other people are trying. Not quite a summary, but what I'm trying to ask: Is it common or recommended for companies to allocate PD time? Whose responsibility is it to ensure a developer's knowledge and skills are up to date? Should a part-time work schedule inspire a lower ratio of PD time : work? How can a developer show non-developer coworkers that reading blogs and books is net productive? Is reading blogs and books actually net productive? (references welcomed) Is writing blogs effective as a way of PD? (a recent theme on Hacker News) This is sort of a broad question because I don't know exactly which questions I need to ask here, so any thoughts on relevant issues I haven't addressed are very welcome.

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• How to fix a Broadcom 43224 (rev. 01) in ubuntu 12.10, running on a macbook pro 6,2?

  - by Eduardo Bezerra

  I've googled for 3 days so far, with no success, so I'll be straightforward: How do you get it to work? this is the output for lspci -v: 03:00.0 Network controller: Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01) Subsystem: Apple Inc. Device 0093 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at c1b00000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: bcma-pci-bridge Kernel modules: bcma for uname -a: Linux fury 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I've tried with bcmwl-kernel-source, firmware-b43-installer and now I'm out of ideas. Can someone help me? This is driving me insane! EDIT: for lspci -nn | grep 0280: 03:00.0 Network controller [0280]: Broadcom Corporation BCM43224 802.11a/b/g/n [14e4:4353] (rev 01) I can see the networks available, but when I try to connect, it gets stuck in a loop: tries to connect, fails, tries again, fails again and so on... EDIT 2: After a long break from this problem, I've just run a few tests again and found out that, although my macbuntu still fails to connect to my home wi-fi network, it works just fine at my university... Does that help in anyway? My home network is managed by a dual-band (2.4Ghz and 5Ghz) 802.11n cisco e4200 wi-fi router.

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