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• If all variables are a subset of the superkey, is the database design 5NF? [migrated]

  - by Lukazoid

  I have a table called LogMessages, which has the following columns: Level A numeric value which represents Trace, Debug, Info, Warning, Error or Fatal Time A UTC time Message Foreign key to a Messages table Source Foreign key to a Sources table User Foreign key to a Users table From what I can see, all of these columns are a part of the super key; if any single value differs to an existing row, a new row can be created. My question is, does this design comply to fifth normal form? I am unsure as some groups of data will be repeating, however I don't believe this violates 5NF? (correct me if I'm wrong)

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• Video: Coherence Community on Java.net - 4 Projects available under CDDL-1.0

  - by OTN ArchBeat

  If you work with Oracle Coherence and you're not familiar with the Coherence Community on Java.net you're missing out. The Coherence Community was launched on Java.net in June 2013, operating under the Open Source Initiative's Common Development and Distribution License (CDDL-1.0). Four projects are currently available for your participation: Coherence Hibernate Integration Coherence Spring Integration Oracle Tools The Coherence Incubator You'll learn a lot more about the Coherence Community in the video above, which features my conversation with Oracle Coherence Senior Principal Solutions Architect Brian Oliver and Oracle Coherence Consulting Solutions Architect Randy Stafford, two of the people behind the creation and management of the Community and it's projects.

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• client website compromised, found a strange .php file. any ideas?

  - by Kevin Strong

  I do support work for a web development company and I found a suspicious file today on the website of one of our clients called "hope.php" which contained several eval(gzuncompress(base64_decode('....'))) commands (which on a site like this, usually indicates that they've been hacked). Searching for the compromised site on google, we got a bunch of results which link to hope.php with various query strings that seem to generate different groups of seo terms like so: (the second result from the top is legitimate, all the rest are not) Here is the source of "hope.php": http://pastebin.com/7Ss4NjfA And here is the decoded version I got by replacing the eval()s with echo(): http://pastebin.com/m31Ys7q5 Any ideas where this came from or what it is doing? I've of course already removed the file from the server, but I've never seen code like this so I'm rather curious as to its origin. Where could I go to find more info about something like this?

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• Troubleshooting Blocked Transaction in SQL Server

  - by ChrisD

  While troubleshooting a blocked transaction issue recently, I found this code online.  My apologies in not citing its source, but its lost in my browse history some where.   While the transaction is executing and blocked, open a connection to the database containing the transaction and run the following to return both the SQL statement blocked (the Victim), as well as the statement that’s causing the block (the Culprit)   -- prepare a table so that we can filter out sp_who2 results DECLARE @who TABLE(BlockedId INT, Status VARCHAR(MAX), LOGIN VARCHAR(MAX), HostName VARCHAR(MAX), BlockedById VARCHAR(MAX), DBName VARCHAR(MAX), Command VARCHAR(MAX), CPUTime INT, DiskIO INT, LastBatch VARCHAR(MAX), ProgramName VARCHAR(MAX), SPID_1 INT, REQUESTID INT) INSERT INTO @who EXEC sp_who2 --select the blocked and blocking queries (if any) as SQL text SELECT ( SELECT TEXT FROM sys.dm_exec_sql_text( (SELECT handle FROM ( SELECT CAST(sql_handle AS VARBINARY(128)) AS handle FROM sys.sysprocesses WHERE spid = BlockedId ) query) ) ) AS 'Blocked Query (Victim)', ( SELECT TEXT FROM sys.dm_exec_sql_text( (SELECT handle FROM ( SELECT CAST(sql_handle AS VARBINARY(128)) AS handle FROM sys.sysprocesses WHERE spid = BlockedById ) query) ) ) AS 'Blocking Query (Culprit)' FROM @who WHERE BlockedById != ' .'

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• Where does the light come from, using Maya/Panda3D?

  - by Aerovistae

  Total noob to Maya. Total noob to Panda3D. Planning on becoming really good at both as soon as I have free time to do so, but right now I have an assignment due in a few hours which requires this: (The part which confuses me is bolded.) Model and texture a vehicle and two different obstacles Build a scene graph in Panda with a plane, the vehicle, several copies of each of the obstacles, and (at least) a direction light Program vehicle movement, constrained to a plane (no terrain) Working headlights Vehicle collides with obstacles How do I attach a light source to a model? I'm assuming this is done in Panda3D but I'm sufficiently new to this that I wouldn't be astonished to hear it's part of the model.

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• Install vim offline

  - by rosemary

  I have Ubuntu 12.04.02 desktop in my college Lab of around 15 pcs with no internet connection. I used to install packages : sudo apt-get install vim It was just fine. But, now I want to install vim locally(i.e.,using a pendrive or CD drive). Where and how can I accomplish this,as I am new to it. Through googling, I could get some sites offering packages, but I have merely any idea on how to carry on: https://launchpad.net/ubuntu/precise/+source/vim http://www.ubuntuupdates.org/package/core/precise/main/base/vim http://pkgs.org/ubuntu-12.04/ubuntu-main-i386/vim-gnome_7.3.429-2ubuntu2_i386.deb.html What should I exactly download and where to store it in my ubuntu machine and run commands to properly install vim offline? Any word of advice is appreciated!

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• Apache OpenOffice dans le Cloud : premier prototype en HTML5, avant une déclinaison sur Smartphones ?

  OpenOffice dans le Cloud : Apache fait une démo d'un premier prototype en HTML5 Avant une déclinaison sur Smartphones ? C'est la Fondation Apache qui le dit. OpenOffice a été la star de la deuxième journée de l'ApacheCon Europe. On ne pourra pas lui donner tort puisque deux de ses membres - Jian Hong Cheng et Fan Zheng ? ont fait la démonstration de la très attendue première version "Cloud" de la suite bureautique open-source. [IMG]http://ftp-developpez.com/gordon-fowler/OpenOffice%20Cloud/OpenOffice%20Cloud%201small.jpg[/IMG...

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• My own personal use of Oracle Linux

  - by wcoekaer

  It always is easier to explain something with examples... Many people still don't seem to understand some of the convenient things around using Oracle Linux and since I personally (surprise!) use it at home, let me give you an idea. I have quite a few servers at home and I also have 2 hosted servers with a hosted provider. The servers at home I use mostly to play with random Linux related things, or with Oracle VM or just try out various new Oracle products to learn more. I like the technology, it's like a hobby really. To be able to have a good installation experience and use an officially certified Linux distribution and not waste time trying to find the right libraries, I, of course, use Oracle Linux. Now, at least I can get a copy of Oracle Linux for free (even if I was not working for Oracle) and I can/could use that on as many servers at home (or at my company if I worked elsewhere) for testing, development and production. I just go to http://edelivery.oracle.com/linux and download the version(s) I want and off I go. Now, I also have the right (and not because I am an employee) to take those images and put them on my own server and give them to someone else, I in fact, just recently set up my own mirror on my own hosted server. I don't have to remove oracle-logos, I don't have to rebuild the ISO images, I don't have to recompile anything, I can just put the whole binary distribution on my own server without contract. Perfectly free to do so. Of course the source code of all of this is there, I have a copy of the UEK code at home, just cloned from https://oss.oracle.com/git/?p=linux-2.6-unbreakable.git. And as you can see, the entire changelog, checkins, merges from Linus's tree, complete overview of everything that got changed from kernel to kernel, from patch to patch, errata to errata. No obfuscating, no tar balls and spending time with diff, or go read bug reports to find out what changed (seems silly to me). Some of my servers are on the external network and I need to be current with security errata, but guess what, no problem, my servers are hooked up to http://public-yum.oracle.com which is open, free, and completely up to date, in a consistent, reliable way with any errata, security or bugfix. So I have nothing to worry about. Also, not because I am an employee. Anyone can. And, with this, I also can, and have, set up my own mirror site that hosts these RPMs. both binary and source rpms. Because I am free to get them and distribute them. I am quite capable of supporting my servers on my own, so I don't need to rely on the support organization so I don't need to have a support subscription :-). So I don't need to pay. Neither would you, at least not with Oracle Linux. Another cool thing. The hosted servers came (unfortunately) with Centos installed. While Centos works just fine as is, I tend to prefer to be current with my security errata(reliably) and I prefer to just maintain one yum repository instead of 2, I converted them over to Oracle Linux as well (in place) so they happily receive and use the exact same RPMs. Since Oracle Linux is exactly the same from a user/application point of view as RHEL, including files like /etc/redhat-release and no changes from .el. to .centos. I know I have nothing to worry about installing one of the RHEL applications. So, OL everywhere makes my life a lot easier and why not... Next! Since I run Oracle VM and I have -tons- of VM's on my machines, in some cases on my big WOPR box I have 15-20 VMs running. Well, no problem, OL is free and I don't have to worry about counting the number of VMs, whether it's 1, or 4, or more than 10 ... like some other alternatives started doing... and finally :) I like to try out new stuff, not 3 year old stuff. So with UEK2 as part of OL6 (and 6.3 in particular) I can play with a 3.0.x based kernel and it just installs and runs perfectly clean with OL6, so quite current stuff in an environment that I know works, no need to toy around with an unsupported pre-alpha upstream distribution with libraries and versions that are not compatible with production software (I have nothing against ubuntu or fedora or opensuse... just not what I can rely on or use for what I need, and I don't need a desktop). pretty compelling. I say... and again, it doesn't matter that I work for Oracle, if I was working elsewhere, or not at all, all of the above would still apply. Student, teacher, developer, whatever. contrast this with $349 for 2 sockets and oneguest and selfsupport per year to even just get the software bits.

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• Oracle revisite la gouvernance d'OpenJDK avec un projet définissant un règlement et un nouveau conseil d'administration

  Oracle revisite la gouvernance d'OpenJDK Avec un projet définissant un règlement et un nouveau conseil d'administration Oracle vient de publier le brouillon du nouveau règlement interne du groupe de travail de l'OpenJDK, l'implémentation open-source de l'édition standard du langage Java. Le but affiché de ce nouveau document est d'aider "les membres [de la communauté] à agir d'une manière ouverte, transparente et méritocratique", tout en encourageant la croissance et la prospérité à long terme de la communauté. Ce brouillon avait été annoncé et co-rédigé par Mark Reinhold, architecte en chef de la plateforme Java à Oracle. Reinhold affirme ...

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• In Stud, which Private RSA Key should be concatenated in the x509 SSL certificate pem file to avoid "self-signed" browser warning?

  - by Aaron

  I'm trying to implement Stud as an SSL termination point before HAProxy as a proof of concept for WebSockets routing. My domain registrar Gandi.net offers free 1-year SSL certs. Through OpenSSL, I generated a CSR which gave me two files: domain.key domain.csr I gave domain.csr to my trusted authority and they gave me two files: domain.cert GandiStandardSSLCA.pem (I think this is referred to as the intermediary cert?) This is where I encountered friction: Stud, which uses OpenSSL, expects there to be an "rsa private key" in the "pem-file" - which it describes as "SSL x509 certificate file. REQUIRED." If I add the domain.key to the bottom of Stud's pem-file, Stud will start but I receive the browser warning saying "The certificate is self-signed." If I omit the domain.key Stud will not start and throws an error triggered by an OpenSSL function that appears intended to determine whether or not my "pem-file" contains an "RSA Private Key". At this point I cannot determine whether the problem is: Free SSL cert will always be self-signed and will always cause browser to present warning I'm just not using Stud correctly I'm using the wrong "RSA private key" The CA domain cert, the intermediary cert, and the private key are in the wrong order.

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• Looking for the better way to combine deep architecture refactoring with feature based development

  - by voroninp

  Problem statement: Given: TFS as Source Control Heavy desktop client application with tons of legacy code with bad or almost absent architecture design. Clients constantly requiring new features with sound quality, fast delivery and constantly complaining on user unfriendly UI. Problem: Application undoubtedly requires deep refactoring. This process inevitably makes application unstable and dedicated stabilization phase is needed. We've tried: Refactoring in master with periodical merges from master (MB) to feature branch (FB). (my mistake) Result: Many unstable branches. What we are advised: Create additional branch for refactoring (RB) periodically synchronizing it with MB via merge from MB to RB. After RB is stabilized we substitute master with RB and create new branch for further refactoring. This is the plan. But here I expect the real hell of merging MB to RB after merging any FB to MB. The main advantage: Stable master most of the time. Are there any better alternatives to the procees?

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• Employee Info Starter Kit (v4.0.0) - Visual Studio 2010 and .NET 4.0 Version is Available Now

  Employee Info Starter Kit is a ASP.NET based web application, which includes very simple user requirements, where we can create, read, update and delete (crud) the employee info of a company. Based on just a database table, it explores and solves most of the major problems in web development architectural space.  This open source starter kit extensively uses major features available in latest Visual Studio, ASP.NET and Sql Server to make robust, scalable, secured and maintainable web applications...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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• Is there a size limit when using UICollectionView as tiled map for iOS game?

  - by Alexander Winn

  I'm working on a turn-based strategy game for iOS, (picture Civilization 2 as an example), and I'm considering using a UICollectionView as my game map. Each cell would be a tile, and I could use the "didSelectCell" method to handle player interaction with each tile. Here's my question: I know that UICollectionViewCells are dequeued and reused by the OS, so does that mean that the map could support an effectively infinitely-large map, so long as only a few cells are onscreen at a time? However many cells were onscreen would be held in memory, and obviously the data source would take up some memory, but would my offscreen map be limited to a certain size or could it be enormous so long as the number of cells visible at any one time wasn't too much for the device to handle? Basically, is there any memory weight to offscreen cells, or do only visible cells have any impact?

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• Legality of copying information from a Wikia? [closed]

  - by Sergio Tapia

  I'm making a website that will act as a compendium for a video game. I noticed that a page from Wikia has a ton of useful content such as background stories and trivia for many of the "entities" in the game. According to their site: The text on Wikia sites is licensed under the Creative Commons Attribution-Share Alike License 3.0 (Unported) (CC-BY-SA). I'm not a lawyer; so what is the legality of copying and pasting the information written there collaboratively by the hivemind, into my website? If needed I would not be opposed to pasting the content and providing a source link at the end of each paragraph. Can I paste the content into my site? Thanks for the help!

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• Write data to SQL Server directly from BizTalk or use external service?

  - by dlongest

  An external source will be sending us XML data that BizTalk will pick up and transform into an internal schema. We need this data to be loaded into a SQL Server database as we're going to expose some of the data to our web front-end via a custom WCF service. The question is: what is the recommended approach for doing something like this? Options we're considering are having BizTalk write to the database directly or having BizTalk call a custom WCF service which would handle the save operation. Another briefly considered idea was having BizTalk write to an MSMQ and have a custom service pull from there and store it in the database. What are some of the guidelines or questions that should be asked in assessing these options? There are concerns related to overhead from calling the extra service, duplication of efforts if the schema is modified in the future (which it will be to some extent), and simply the best way to design within a service-oriented architecture that we're struggling with.

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• What are the system requirements for each flavor of Ubuntu Desktop?

  - by Braiam

  I'm thinking about installing Ubuntu Desktop, but I don't know what flavor is the better for my system. What are the minimum and recommended hardware requirements? What kind of CPU? How much memory? Should I have Hardware Acceleration? What flavor should I use? This is an attempt of a canonical answer. My answers have the "official minimal requirements", the recommended are a mix of official sources and opinion based (along with the answer it's told the source). You can comment or edit if you feel that the information is obsolete or incomplete. Is a good rule of thumb that any system capable to run Windows Vista, 7, 8 x86 OS X will almost always be a lot faster with any Ubuntu flavor even if they are lower-spec than described below.

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• Free E-Book - Testing for Continuous Delivery with Visual Studio 2012

  - by TATWORTH

  Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/11/05/free-e-book---testing-for-continuous-delivery-with-visual-studio.aspx At http://msdn.microsoft.com/en-us/library/jj159345.aspx, Microsoft Press are offering the free e-Book, Testing for Continuous Delivery with Visual Studio 2012. "As more software projects adopt a continuous delivery cycle, testing threatens to be the bottleneck in the process. Agile development frequently revisits each part of the source code, but every change requires a re-test of the product. While the skills of the manual tester are vital, purely manual testing can't keep up. Visual Studio 2012 provides many features that remove roadblocks in the testing and debugging process and also help speed up and automate re-testing. " (Please ignore the click to look inside!)

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• need help connecting to bitbucket repository with sourceTree on windows 8

  - by pythonian29033

  I'm having trouble adding and cloning my repo on bitbucket to the sourceTree app, we're only starting with this now and we're a small company, so there's not much knowledge around this. now I've gone through The documentation on sourceTree for help, but I've noticed when I select my repo on bitbucket, it uses the repo url I select and appends a .git at the end. Then a notice message says This is not a valid source path / URL, but when I click Details... I get a dialogBox with nothing in it and an ok button. and when I'm done entering the details the 'Clone' button remains disabled. Is this Windows 8 or am I actually doing something wrong? Now I usually use ubuntu, but we just got these new ASUS ultrabooks at work and it's a pain to install any linux Distro on here. So I'm stuck with windows 8

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• Sample code and slides for my TechDays10 (Belgium) talks

  - by Laurent Bugnion

  The source code for my MVVM talk titled “Understanding the MVVM Pattern” given at TechDays 2010 in Antwerpen, Belgium, is available online. It is actually the same code than the MIX10 one, but I added the Windows Phone 7 MVVM Light application (available in the folder titled “Mix10.MvvmDemo2-End”. Note: before unpacking the zip file, you should right click on it, and select properties / Unblock. I also published the slides for my two talks: Understanding the MVVM Pattern A day in the life of a WPF/SL integrator As far as I know, the videos will be online soon, stay tuned and I will announce when it is the case. Get Started page for the MVVM Light Toolkit: http://www.galasoft.ch/mvvm/getstarted   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

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• How can I port a MonoGame Windows Phone 8 game to iOS?

  - by Homer_Simpson

  I downloaded the trial version of Xamarin Studio and installed it on my iMac. In addition, I installed Xcode on my iMac so that I can use the iPhone emulators in Xamarin Studio. But I don't know how to use my MonoGame Windows Phone 8 source files in a Xamarin iPhone project. How can I use my Windows Phone code in an iPhone project? Can I import all my existing classes(for example Game1.cs) in an iPhone project without changing something? How can I port a MonoGame Windows Phone 8 game to iOS?

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• What are options for 3rd Party Centralized Software Settings Management?

  - by Jeff Martin

  I am an architect in an enterprise looking to build a SaaS solution. Our products are distributed over many different deployable containers, Web Services, Web UI's, etc. I am looking for some open-source or 3rd party software solution to manage the settings of our application. These would be similar to the settings you might find in Word or Eclipse or Visual Studio. The settings would control various behaviors and features of the product. (Probably not settings like which database to connect to but more like, should I show line numbers on the page or not by default..). Ideally, we would be able to store values for different dimensions (by tenant, by user, by application environment... ) Because we have so many different deployables, I am looking for a centralized solution that can provide a web service that each of the deployables can get their individual settings from. Does anyone know of a centralized service providing this sort of features or give me some help in searching for an alternative to rolling our own?

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• Programming Challenges for a beginner

  - by JMK

  I'm in an unusual situation. A colleague of mine wants to "learn programming" and, being a developer I have been tasked with teaching him "programming". Personally, I am self taught, and have never taught any sort of skill to anybody else before so I am not quite sure where to start. Also, I still have a heck of a lot to learn myself (although don't we all)! I write in C# but is C# a good language for a beginner? I was thinking that Visual Basic .Net would be a better starting point, so was considering getting him setup with Visual Studio Express 2010, teaching him a few basics (variables, functions, classes etc) then finding some programming challenges and asking him to work through these. Does anybody have a good source of these sorts of challenges? Also is this a good strategy? Finally, what are your experiences of teaching programming to somebody else and what advice would you give?

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• Sortable Accordion Modified to Implement More On Click However New Levels Will Not Expand

  - by Tim Marshall

  JS Fiddle: http://jsfiddle.net/JF7PD/ I've been doing extensive work on this and I've just able almost got it fully working. The reason why I am asking for help now is that I don't have a clue why my newly added accordion(s) do not expand upon being clicked. I've got a feeling it may be due to the newly added code as I was having problems using my code in the file so instead I looked at the source and copied the accordion level to be used and all appears to look fine apart from them not expanding. Thank you for any help in advanced, Best Regards, Tim

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• touch in guiTexture

  - by Mitananda

  Before time in my game start. i want there will show a guiTexture.. if i touch this guiTexture, that will hidden and the time game will start. I try to make a script but it doesn't work. I'm a bit confused by the Unity documentation. please help me i'm newbie in Unity. my code : void Start () { if (myGuiTexture.HitTest(Input.GetTouch(0).position)) { if (Input.GetTouch(0).phase == TouchPhase.Began) { Time.timeScale = 1; myGuiTexture.enable = false; } } } and i also create this source but its doesn't work too. void Start () { if (tutorial.HitTest(new Vector3(0,0,0))){ Time.timeScale = 1; } }

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• Can't reliably ping 6224 router from directly-attached system

  - by David Mackintosh

  OK, here's my situation. This is on the internet. The 6224 is the router in this picture and physically resides in Kanata. Both VLAN 1697 and 3994 are provided by an internet service provider. These VLANs are provided through a single 1Gb ethernet wire. The Kanata hosts are directly attached to the 6224; the other two sites are remote. VLAN 3994 is a single IP address space, so theoretically it shouldn't matter physically where the hosts on that subnet are. Here's the problem. I have a monitoring system which is connected further into the internet, so probes from the monitor would come in to this diagram on the 1697 VLAN. When I ping hosts at Albert or Bells Corners from the internet, there is 0 loss. The connection looks perfect. When I ping hosts at Kanata, I lose anywhere from 10 to 40% of the pings. The loss is not predictable, but: when I do lose them, I always lose at least 3, usually 4, rarely more, pings in a bunch. I have attached a monitor directly to the 6224 in Kanata on 3994.. When the monitor pings the 6224 routing interface, I see exactly the same loss pattern -- but NOT at the same time as the loss from the remote system. Ping time is around 1ms. When the monitor pings another system directly attached to the 6224, there is 0 loss. Ping time is about 0.1ms, one-tenth of the time to ping the router. Anyone know what is going on here?

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