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• New London based .NET User Group &ndash; first meeting June 2nd on MEF

  - by Eric Nelson

  A new .NET User Group is starting up in Canary Wharf - CWDNUG. It plans to focus on technology for financial services such as: WPF & Silverlight. F# & other alternative languages. High volume systems & complex event processing. Agile tools, methodologies and experiences. Open source systems that you can use (or that need your help!). Upcoming releases from Microsoft (WP7, VS2010, TPL). The first meeting is on June 2nd and Marlon (WPF MVP) will be speaking about MEF. Register today as there are only 15 spots left :-) (as of Thursday 20th May)

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• Dec. 6 Webcast: See the New UI for JD Edwards

  - by Theresa Hickman

  When: Dec. 6, 2011 Time: 8:00am PST What: Live webcast and demo Tune into this live webcast to see the just completed new JD Edwards EnterpriseOne User Interface. This is one of the most significant releases with a massive number of feature innovations for users and system administrators. We are looking forward to demonstrating the new User Interface and Tools. The following panel of experts will be available to answer all your questions: Lyle Ekdahl – Oracle Group Vice President Gary Grieshaber – Oracle Strategy Senior Director Brian Stanz – Oracle Development Senior Director Click here to register. Note: You must pre-register for this event.

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• Mixing Forms and Token Authentication in a single ASP.NET Application (the Details)

  - by Your DisplayName here!

  The scenario described in my last post works because of the design around HTTP modules in ASP.NET. Authentication related modules (like Forms authentication and WIF WS-Fed/Sessions) typically subscribe to three events in the pipeline – AuthenticateRequest/PostAuthenticateRequest for pre-processing and EndRequest for post-processing (like making redirects to a login page). In the pre-processing stage it is the modules’ job to determine the identity of the client based on incoming HTTP details (like a header, cookie, form post) and set HttpContext.User and Thread.CurrentPrincipal. The actual page (in the ExecuteHandler event) “sees” the identity that the last module has set. So in our case there are three modules in effect: FormsAuthenticationModule (AuthenticateRequest, EndRequest) WSFederationAuthenticationModule (AuthenticateRequest, PostAuthenticateRequest, EndRequest) SessionAuthenticationModule (AuthenticateRequest, PostAuthenticateRequest) So let’s have a look at the different scenario we have when mixing Forms auth and WS-Federation. Anoymous request to unprotected resource This is the easiest case. Since there is no WIF session cookie or a FormsAuth cookie, these modules do nothing. The WSFed module creates an anonymous ClaimsPrincipal and calls the registered ClaimsAuthenticationManager (if any) to transform it. The result (by default an anonymous ClaimsPrincipal) gets set. Anonymous request to FormsAuth protected resource This is the scenario where an anonymous user tries to access a FormsAuth protected resource for the first time. The principal is anonymous and before the page gets rendered, the Authorize attribute kicks in. The attribute determines that the user needs authentication and therefor sets a 401 status code and ends the request. Now execution jumps to the EndRequest event, where the FormsAuth module takes over. The module then converts the 401 to a redirect (302) to the forms login page. If authentication is successful, the login page sets the FormsAuth cookie.   FormsAuth authenticated request to a FormsAuth protected resource Now a FormsAuth cookie is present, which gets validated by the FormsAuth module. This cookie gets turned into a GenericPrincipal/FormsIdentity combination. The WS-Fed module turns the principal into a ClaimsPrincipal and calls the registered ClaimsAuthenticationManager. The outcome of that gets set on the context. Anonymous request to STS protected resource This time the anonymous user tries to access an STS protected resource (a controller decorated with the RequireTokenAuthentication attribute). The attribute determines that the user needs STS authentication by checking the authentication type on the current principal. If this is not Federation, the redirect to the STS will be made. After successful authentication at the STS, the STS posts the token back to the application (using WS-Federation syntax). Postback from STS authentication After the postback, the WS-Fed module finds the token response and validates the contained token. If successful, the token gets transformed by the ClaimsAuthenticationManager, and the outcome is a) stored in a session cookie, and b) set on the context. STS authenticated request to an STS protected resource This time the WIF Session authentication module kicks in because it can find the previously issued session cookie. The module re-hydrates the ClaimsPrincipal from the cookie and sets it.     FormsAuth and STS authenticated request to a protected resource This is kind of an odd case – e.g. the user first authenticated using Forms and after that using the STS. This time the FormsAuth module does its work, and then afterwards the session module stomps over the context with the session principal. In other words, the STS identity wins.   What about roles? A common way to set roles in ASP.NET is to use the role manager feature. There is a corresponding HTTP module for that (RoleManagerModule) that handles PostAuthenticateRequest. Does this collide with the above combinations? No it doesn’t! When the WS-Fed module turns existing principals into a ClaimsPrincipal (like it did with the FormsIdentity), it also checks for RolePrincipal (which is the principal type created by role manager), and turns the roles in role claims. Nice! But as you can see in the last scenario above, this might result in unnecessary work, so I would rather recommend consolidating all role work (and other claims transformations) into the ClaimsAuthenticationManager. In there you can check for the authentication type of the incoming principal and act accordingly. HTH

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• HP 510 laptop doesn't suspend when I close the lid

  - by Yuri

  I have an HP 510 laptop with Ubuntu 12.04. I have all the correct settings for suspending when the lid is closed, as far as I can tell, so I think it's a problem with detecting the event. The way it "should" be detected, from what I can see, is a little hardware switch that is pushed when the lid closes. This switch manually puts off the backlight, and sends the suspend signal. All I can think is that the signal isn't being properly interpreted. Can anyone suggest a fix? Update: I tested whether the button was actually working based on the suggestion by josinalvo, and I found that in the directory /proc/acpi/button/lid/ there is no LID directory. There is, however, a C1CF folder, and in it is a state file. When using the this file instead of ID, I discovered that, no, when I close the lid, the state does not change.

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• Kicked out when logged in?

  - by acidzombie24

  When i log into ubuntu the screen goes black as it were logging in but then i am back in the login screen. I can login as guest (i should disable that). I can login via ssh. The last time i had no issues was when i used it this morning and the only unusual thing i did was shutdown via ssh (i think i wrote shutdown now) which had ubuntu hang after showing the shuting down screen for many seconds (i kind of assumed it shut down properly since the UI froze as well and it usually takes less time). Whats the easiest way to fix this w/o reinstalling? Its a brand new install and so it probably takes me 10mins to recopy/setup everything so i may just do that -edit- using 12.04

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• 50-synaptics.conf options not working

  - by djeikyb

  How does Ubuntu come up with the default synaptics settings? I've got Ubuntu Netbook 10.10 installed on an Eeepc 900. Out of the box TapButton2 was set to 3, and TapButton3 was set to 2. I have several custom synaptics settings I want as system wide defaults. Right now I use a script with synclient commands I have to run every boot or wake. Pita. It used to be everything went in xorg.conf..which no longer exists. I'm trying to learn the new way, which is apparently conf files at /usr/share/X11/xorg.conf.d. I edited 50-synaptics.conf to look like: Section "InputClass" Identifier "touchpad catchall" Driver "synaptics" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Option "LockedDrags" "1" Option "TapButton2" "2" Option "TapButton3" "3" EndSection But my next X session (startx -- :2) doesn't have the options configured.

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• Will You Survive The Undead Apocalypse? [Action Flow-Chart Wallpaper]

  - by Asian Angel

  Think you would know what to do if the zombie apocalypse happened today? This awesome flow-chart from Game Informer can help you make the right decisions based on your location or time period! Note: Click on the image embedded in the post to view and download the full-size (2500*1763 pixels) wallpaper. Will You Survive The Undead Apocalypse? [Game Informer] HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows?

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• How To Easily Send Emails From The Windows Task Scheduler

  - by Chris Hoffman

  The Windows Task Scheduler can automatically send email at a specific time or in response to a specific event, but its integrated email feature won’t work very well for most users. Instead of using the Task Scheduler’s email feature to send emails, you can use the SendEmail utility. It allows you to construct a single-line command that authenticates with an SMTP server and sends an email. 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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• What is "Unlock keyring" and how do I get rid of it?

  - by cipricus

  (In my case this message never appeared before installing Ubuntu One - see this question). Can I use Ubuntu One and avoid being prompted each time like this? I use Lubuntu 12.04. Edit: After exchanging comments I add the supplementary info: I am asked for password and to select session if I log out and in (auto-login is NOT set). Ubuntu One is installed but set NOT to start with session. Keyring appears nonetheless. Before installing Ubuntu One this didn't happen. Also, following the advice of con-f-use, I have entered ps -A | grep -i ubunt[u] in terminal, and got 2346 ? 00:00:01 ubuntuone-syncd, which means that ubuntuone is running when it was not supposed to.

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• Advertising Campaign Bidding Network

  - by David

  I hope this is the correct stackexchange to post on. Seems to most relevant. I'm looking for more ways to monetize my site. I'm already using the usual Google Adsense, tradedoublers, ad networks, etc. What I want to know, is if anyone knows of a service/network out there (similar to tradedoubler), which allows you to accept (or bid) on campaigns (primarily CPM based). For example: I log in, I get a list of advertising campaigns that are available and the prices they are willing to pay or I can put a bid in with imp count and cpm rate. I'm looking for something ideally europe or UK based, but im open to others. Thanks!

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• How to display image in html image tag - node.js [on hold]

  - by ykel

  I use the following code to store image to file system and to retrieve the image, I would like to display the retrieved image on html image tag, hower the image is rendered on the response page but not on the html image tag. here is my html image tag: <img src="/show"> THIS CODE RETREIVES THE IMAGE: app.get('/show', function (req, res) { var FilePath=__dirname+"/uploads/3562_564927103528411_1723183324_n.jpg"; fs.readFile(FilePath,function(err,data){ if(err)throw err; console.log(data); res.writeHead(200, {'Content-Type': 'image/jpeg'}); res.end(data); // Send the file data to the browser. }) });

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• How to Delete/Disable gnome panels. No existing solutions working.

  - by Alan Peabody

  I would like to remove gnome panel completely. I spend most of my time in a (tmux) terminal or a browser. Synapse and a small hidden AWN panel fit the rest of my needs. I have tried all recommended solutions including this (found it a few places): How to delete Gnome Panel? However it always comes back at log in. I have tried changing the required components panel to avant-whatever as well as to empty. I have tried setting them both as default (right click set as default). Right now I just have the last panel set to transparent and auto hide, but it still tends to be annoying. What do I need to do to get rid of this damn thing?

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• Falied installing ATI X.Org binary driver!! (ATI Radeon HD 5400)

  - by Naveen

  The open source driver worked well with the fresh installation of Ubuntu 12.04, but it drains my laptop battery faster. So I installed the proprietary driver from jockey-gtk. It gave me this error message at the end of the installation: Here is the jockey.log After restarting the computer, I lost all the compositing animations. Compiz visual effects don't work. There is a black boarder around Docky. Please somebody help me...! Thanks!

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• ATI graphics card, with gnome shell on Ubuntu 11.10, screen flickers

  - by bioShark

  After installing gnome shell, without any problem, after log in the fonts are missing and it looks like crap...nothing is readable. Don't want to make it a double post, because my issue is similar to the one from this question but for me the problems have not been solved properly. After running the commands from that post, and installing the latest AMD 11.10 driver, the Gnome shell display issues have been solved. But each time I move the mouse in the upper left corner, to bring up the applications...my entire screen flickers. Without the applications been displayed, everything looks fine. Hardware: ATI HD4870, Intel Q6600.

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• Capgemini report - Business Cloud: The State of Play Shifts Rapidly

  - by Javier Puerta

  Capgemini has published a recent survey on the state of play of cloud adoption. The report indicates "clear evidence that the business, rather than purely IT, is becoming involved in driving Cloud strategy, and pioneering its use for ‘edge’ growth initiatives."  Ron Tolido, Senior Vice President and Chief Technology Officer of Applications Continental Europe at Capgemini, was one of the keynote speakers at our Exadata & Manageability Partner Community event in Istanbul in March. He is one of the drivers of this survey. Read his article "3 Key Cloud Insights for 2013". You an download the full report here:  "Business Cloud: The State of Play Shifts Rapidly - Fresh Insights into Cloud Adoption Trends"

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• Capgemini report - Business Cloud: The State of Play Shifts Rapidly

  - by Javier Puerta

  Capgemini has published a recent survey on the state of play of cloud adoption. The report indicates "clear evidence that the business, rather than purely IT, is becoming involved in driving Cloud strategy, and pioneering its use for ‘edge’ growth initiatives."  Ron Tolido, Senior Vice President and Chief Technology Officer of Applications Continental Europe at Capgemini, was one of the keynote speakers at our Exadata & Manageability Partner Community event in Istanbul in March. He is one of the drivers of this survey. Read his article "3 Key Cloud Insights for 2013". You an download the full report here:  "Business Cloud: The State of Play Shifts Rapidly - Fresh Insights into Cloud Adoption Trends"

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• Unwanted application starts automatically when I login

  - by Bakhtiyor

  When I log in to my Ubuntu system several applications that I added to startup list (by using System-Preferences-StartUp Application) start automatically. Last times I am seeing that among those startup applications there is also another one called "Konqueror" (which is a browser and browse me automatically http://unix.stackexchange.com/users/4458/bakhtiyor) which starts automatically. But I didn't add this application to startup list. I looked for every place that I knew to see why it was loading automatically but I could not find it. Could anybody help me to find out how that application is starting up automatically when a session starts please? Note that I don't have root permission in my system, because it is in my working place. I am using Ubuntu Desktop and GNOME. Thank you.

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• How to SET TIMING ON for parallel upgrades to 12c?

  - by Mike Dietrich

  Have you asked yourself how to get timings in an Oracle Database 12c upgrade for all statements? When you run the parallel upgrade via catctl.pl, the parallel upgrade Perl driving script in Oracle Database 12c, you may also want to get timings written in your logfile during execution. As catctl.pl does not offer an option yet the best way to achieve this is to edit the catupses.sql script in $ORACLE/rdbms/admin as this script will get called all time over and over again throughout all steps of theupgrade run. Just add these lines marked in RED to catupses.sql and start your upgrade: Rem =============================================Rem Call Common session settingsRem =============================================@@catpses.sql Rem =============================================Rem  Set Timing On during the UpgradeRem =============================================SET TIMING ON; Rem =============================================Rem Turn off PL/SQL event used by APPSRem =============================================ALTER SESSION SET EVENTS='10933 trace name context off'; -Mike PS: This may become the default in a future patch set

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• Check for bodies within a specific circle in Box2D

  - by ltjax

  I'm trying to find positions to insert new bodies into my world. For that, I'd like to have a "free" spot where this body wouldn't overlap with anything else. So my plan was to sample "random" positions and check whether they overlap with my "potential" new body. Since my bodies are always circular, I'd need to test within a given circle. So far, the only way to use box2d for this seems to use b2World::QueryAABB around my circle and manually doing an overlap test with all the fixtures it gives me (Box2D doesn't event seem to allow me to tap into its overlapping tests?!). It seems to me like Box2D should already provide such functionality - is there a way that lets me do this without reinventing most of the wheel again?

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• permission denied errors while starting namenode in hadoop 2.2.0

  - by Riddle

  I recently installed hadoop2.2.0 on my desktop running : Linux livingstream 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Lin I am able to format the namenode just fine , however when I start the namenode using the following command: hadoop-daemon.sh start namenode I get the following permission errors , can anyone please help me with these errors: hduser@livingstream:/usr/local/hadoop$ hadoop-daemon.sh start namenode mkdir: cannot create directory `/var/run/hadoop': Permission denied starting namenode, logging to /var/log/hadoop/hduser/hadoop-hduser-namenode- livingstream.out /usr/sbin/hadoop-daemon.sh: line 138: /var/run/hadoop/hadoop-hduser-namenode.pid: No such file or directory Can you please help me with these errors. Best Regards, Ishan

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• How do I avoid the "S to Skip" message on boot?

  - by Marty

  After upgrading my laptop from karmic to lucid, my fat32 partition won't mount automatically. I get the message: The disk drive for /osshare is not ready yet or not present Continue to wait; or Press S to skip mounting or M for manual recovery Funny thing is, if I skip, then /osshare/ is mounted once I log in. I've a similar setup on my desktop, and it works fine. Fstab on desktop: UUID=4663-6853 /osshare vfat utf8,umask=007,gid=46 0 1 /etc/fstab on laptop: UUID=1234-5678 /osshare vfat utf8,auto,rw,user 0 0

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• Writing selenium tests, should I just get it done or get it right?

  - by Peter Smith

  I'm attempting to drive my user interface (heavy on javascript) through selenium. I've already tested the rest of my ajax interaction with selenium successfully. However, this one particular method seems to be eluding me because I can't seem to fake the correct click event. I could solve this problem by simply waiting in the test for the user to click a point and then continuing with the test but this seems like a cop out. But I'm really running out of time on my deadline to have this done and working. Should I just get this done and move on or should I spend the extra (unknown) amount of time to fix this problem and be able to have my selenium tests 100% automated?

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• ISACA Information Security & Risk Management Conference, Nov 14-16

  - by Troy Kitch

  Please join Oracle, as a platinum sponsor, at this year's ISACA Information Security and Risk Management Conference in Las Vegas, Nov 14-16. This year’s conference offers up to 32 CPE hours and is designed to meet the needs of information security, governance, compliance, and risk management professionals. The event builds on and includes the key elements of information security, governance, compliance and risk management practices, and offers a fresh perspective on current and future trends. As provider of the world’s most complete, open, and integrated business software and hardware systems, Oracle can uniquely safeguard your information throughout its entire lifecycle and is the recognized leader in Data Security, Identity Management, and Governance, Risk, and Compliance solutions. Also, attend the Oracle Megatrends Session, Gone in 60 Seconds: Mitigating Database Security Risk and stop by our booth, # 100 & #102, to meet with Oracle Security Solution experts, see live product demos, and more. Learn more and register.

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• Modifying RaspberryPi as perfect linux box [on hold]

  - by Jai Hind Rubik's

  I have just bought one Raspberry pi RaspberryPi. I want to load linux kernel there. Actually my plan is to first load kernel ver sion 2.6.* after that one 3.10.* above that and in boot time I want to load 3.10.* (can choose). just after booting, I want to log in there through my windows machine using client like putty or telnet, on telnet I want see following prompt there: login as: root [email protected]'s password: ********** Last login: Thu Aug 21 22:41:07 2014 from 10.78.235.82 [root@debd ~]# [root@debd ~]#ls [root@debd ~]# Documents ... Can any one tell what kind of modification I needed to do for this? I am college student and have less knowledge managing hardware

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• Bouncing ball slowing down over time

  - by user46610

  I use the unreal engine 4 to bounce a ball off of walls in a 2D space, but over time the ball gets slower and slower. Movement happens in the tick function of the ball FVector location = GetActorLocation(); location.X += this->Velocity.X * DeltaSeconds; location.Y += this->Velocity.Y * DeltaSeconds; SetActorLocation(location, true); When a wall gets hit I get a Hit Event with the normal of the collision. This is how I calculate the new velocity of the ball: FVector2D V = this->Velocity; FVector2D N = FVector2D(HitNormal.X, HitNormal.Y); FVector2D newVelocity = -2 * (V.X * N.X + V.Y * N.Y) * N + V; this->Velocity = newVelocity; Over time, the more the ball bounced around, the velocity gets smaller and smaller. How do I prevent speed loss when bouncing off walls like that? It's supposed to be a perfect bounce without friction or anything.

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