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• question and answer engine architecture

  - by sarvesh

  Can anyone give me insights as to how websites like chacha.com / kgb.com are designed. What could be the components involved when a user sends out an sms and how is that question stored. Should the question and answers be stored in a relational model or non relational?

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• stackoverflow : Adding image in question

  - by pavun_cool

  Hi All, I want to know , how to place the image in the stactoverflow question posting. Actually I have screenshot file which is output of my code. So I want show that image in my question from local file system. I tried with tag option , but it is asking me url of the image . Any one explain me.....

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• Quick question regarding Conditional Compilation (ifndef)

  - by sil3nt

  Hello, This is quite probably a very silly question but I need to be sure. I've been given a class declaration in a header file eg. #ifndef file_H #define file_H class ex{ private: public: }; #endif and I've been required to write the method definitions in the same file, which I have done, my question is does the "#endif" stay where it is just after the class declaration or does it go at the end of my file after the class method definitions?.

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• How can I delete a question? [closed]

  - by Surya sasidhar

  I posted a question here a few months back; now I want to delete that question. How do I do that?

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• RESTful Question/Answer design?

  - by Kirschstein

  This is a toy project I'm working on at the moment. My app contains questions with multiple choice answers. The question url is in the following format, with GET & POST mapping to different actions on the questions controller. GET: url.com/questions/:category/:difficulty => 'ask' POST: url.com/questions/:category/:difficulty => 'answer' I'm wondering if it's worth redesigning this into a RESTful style. I know I'd need to introduce answers as a resource, but I'm struggling to think of a url that would look natural for answering that question. Would a redesign be worthwhile? How would you go about structuring the urls?

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• DNN: Registered Mark changing to Question Mark

  - by coultertech

  I am having a problem with registered marks in the HTML module.  We need to use the Registered Trademark symbol (®) but some of them are being changed to question marks.  I can find no ryme or reason behind which change and which remain correct.  I have tried a number of things to fix this issue including the following: Using ® and ® using ® copy and paste of ® in both source and non source and using the "insert special character" from the RTE menu Some of the symbols remain but most revert back to question marks.  If i'm in edit mode, the questions marks change back to the registered mark.  Also sometimes the first time viewing the page not logged in or in view mode, they will look fine. But as soon as I got to edit mode or a new page then go back, they change back to question marks.  I am out of idea as to why this is happening. You can see the page at: http://fasttracsc.twif.net/AboutFastTracSC.aspx  Anywhere you see Fasttrac? it should be Fasttrac® Any help anyone can provide would be much appreciated. Thanks in advance.

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• mod_rewrite with question marks and ampersands (with PHP)

  - by Chris

  I have a PHP-based web app that I'm trying to apply Apache's mod_rewrite to. Original URLs are of the form: http://example.com/index.php?page=home&x=5 And I'd like to transform these into: http://example.com/home?x=5 Note that while rewriting the page name, I'm also effectively "moving" the question mark. When I try to do this, Apache happily performs this translation: RewriteRule ^/([a-z]+)\?(.+)$ /index.php?page=$1&$2 [NC,L] But it messes up the $_GET variables in PHP. For example, a call to http://example.com/home?x=88 yields only one $_GET variable (page => home). Where did x => 88 go? However, when I change my rule to use an ampersand rather than a question mark: RewriteRule ^/([a-z]+)&(.+)$ /index.php?page=$1&$2 [NC,L] a call like http://example.com/home&x=88 will work just as I'd expect it to (i.e. both the page and x $_GET variables are set appropriately). The difference is minimal I know, but I'd like my URL variables to "start" with a question mark, if it's possible. I'm sure this reflects my own misunderstanding of how mod_rewrite redirects interact with PHP, but it seems like I should be able to do this (one way or another). Thanks in advance! Cheers, -Chris

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• auto_complete plugin error: Couldn't find Question with ID=auto_complete_for_tag_tag_name

  - by bgadoci

  I have successfully set up this plugin before so I am curious as to what I am doing wrong here. I have built the ability for users to add tags to questions. I am not using tagging plugin here but that shouldn't matter for this. With respect to the auto complete, I am trying to have the form located in the /views/questions/show.html.erb file access the Tags table and display entries in the tags.tags_name column. When I begin to type in the field I get the following error message: Processing QuestionsController#show (for 127.0.0.1 at 2010-05-31 15:22:20) [GET] Parameters: {"tag"=>{"tag_name"=>"a"}, "id"=>"auto_complete_for_tag_tag_name"} Question Load (0.1ms) SELECT * FROM "questions" WHERE ("questions"."id" = 0) ActiveRecord::RecordNotFound (Couldn't find Question with ID=auto_complete_for_tag_tag_name): app/controllers/application_controller.rb:15:in `init_data' For some reason I am actually passing the field name as the Question.id. The plugin set up is fairly simple as you add the following line to your controller: auto_complete_for :tag, :tag_name and the following line in your routes.rb file: map.resources :tags, :collection => {:auto_complete_for_tag_tag_name => :get } I have added the controller line to both my tags and questions controller and also mapped resources for both tags and questions in my routes.rb file: map.resources :tags, :collection => {:auto_complete_for_tag_tag_name => :get } map.resources :questions, :collection => {:auto_complete_for_tag_tag_name => :get } I have played around with removing either or of the above but can't seem to fix it. Any ideas what I am doing wrong here?

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• Quick question regarding MVC framework for a java game

  - by Jason

  I have a question regarding the use of the MVC framework for a blackjack game im writing in java. As I understand, my model would be a class that stores the state of the game, and more specifically, each players hand. Within the model class, I would have an array of listeners, which would be notified each time the game state changes (ie a player has drawn a new card). These listeners would be my viewer, which is the class that handles the display of the game. This class would implement the ActionListener interface, and each time the model changes, it would call/"notify" my viewer's actionPerformed method. My question is as follows: I intend to have two JPanels, each devoted to displaying the respective player's hand. As a player draws a new card, a new ImageIcon would be added to the panel. My question is how would the viewer class know what card has been added to the player's hand? I suppose I could store the player's hand before a notify event, and then upon the notification event, compare the new state with the old, to find out what has changed. I'm a complete novice here, so I could be completely wrong, but it seems a bit tedious to do this. Is there a more efficient/common way of detecting what has changed in the model between the before and after state? Another solution would be to redraw the entire panel each time the notification occurs? Would this be a better idea?

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• New Dell PE R710 - Storage Question

  - by rihatum

  Hi All, Dell PE R710, received from Dell in the following state : Windows Disk 0 1800GB ( Volume C & D ) Windows Disk 1 526 GB (Volume E ) Perc6i Integrated Raid Controller 6 x 500GB Nearline SAS 7200RPM HDDs Raid 5 Configuration with two Virtual Disks I have installed Dell open Manage and it shows the following : Virtual Disk 0 - State : Background Initialization ( 7% ) Virtual Disk 1 - State : Background Initialization ( 25% ) Now when I click on Virtual Disk 0 it shows me all 6 Disks and the same happens when I click on Virtual Disk 1 it displays all 6 disks. But when I click on Storage Perc6i Connector 0 I get 4 Physical disks with the following numbers : Physical Disk 0:0:0 Physical Disk 0:0:1 Physical Disk 0:0:2 Physical Disk 0:0:3 When I click on Storage Perc6i Connector 1 I get 2 Physical Disks Listed in the following way : Physical Disk 1:0:4 Physical Disk 1:0:5 I am a little confused in this description, does this 1:0:4 interprets to Controller1, Disk4. Does this integrated raid card have two controllers coming out of it ? Also, When I first switched on the machine, the boot partition was showing 1GB Available out of 40GB, now its showing 38GB available out of 40GB. Is this because the Virtual Disks are still Initializing ? Any recommendations or suggestions ? Also, this server have 6 x 500GB NearLine SAS Hard drives, what would be a good raid config ? We are planning to use it for Hyper-V with quite a few (7 or 8) virtual servers, your suggestions would be helpful. Also, while the virtual disks are in a initialization state, can I destroy and re-create the raid configuration ? I would have to do it at the BIOS CTRL-M ? Thanks and Regards

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• SysAdmin Career Question: Internal or Client Based

  - by Malnizzle

  ServerFault Community, It seems there are two positions SysAdmins find themselves in, either you are working for a non-IT services based single client (your employer) and providing in-house IT support or you work for a company who provides out sourced IT services to multiple clients. Right now I work for a company who does the latter, and I often consider how nice it would be doing the in-house side of things, to just have one network I am focused on and instead of feeling like I have a dozen bosses between clients and internal management, I would just have one set of management and people to appease. There is also the technical aspect of every client wanting something different, and having to manage numerous different technology platforms, or trying to force clients into using the technologies we prefer, neither situation is enjoyable. Is this just "the grass is greener on the other side" syndrome, or is there some legitimacy to the the stress of client based IT work compared to being an in-house IT guy? Thanks!

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• Ethernet switch capacity question

  - by Andrew Queisser

  We're looking at hooking up 48 small embedded systems with 10/100 Ethernet ports to an Ethernet switch and then have that switch talk to a server upstream via a faster connection. I have a couple of questions about that scenario: What kind of upstream connection is best (fiber, other?) Would it be reasonable to download 1GB/hour from each of the 48 systems concurrently? We'd be using some kind of TCP based protocol of our own design. Thanks, Andrew

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• zfs setup question

  - by Staale

  Currently I have a linux storage box and server with 4x750gb harddrives in raid-5 with ext3. I have ordered 3x1.5tb disks to upgrade this. Here is my planned upgrade: Backup: Format the 1.5 tb disks Copy all data from the raid-5 disks to the 1.5tb disks Destroy the raid-5 array. New setup: Create a VirtualBox system and install Nexenta (OpenSolaris + ubuntu) on it. Create a zfs pool with zraid1 with the 4 750gb disks. Copy from 1.5tb disks to the virtualbox zfs pool Format the 1.5tb disks. Replace 3 off the 750gb disks with 1.5tb disks. Reuse the 750gb disks elsewhere. The reason I wish to use one 750gb disk is since I can't grow the disk count in a raidz array, and this gives me the option off replacing that disk later for an extra 750gb storage. Would the ZFS performance be good running through virtualbox? Or will the performance overhead be too large? Will I get 1.5tb+1.5tb+750gb storage on the zraid? Or just 750gbx3 until all disks are 1.5tb?

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• Google Apps Email Question

  - by robihot

  Google Apps Has anyone created (and used) a GROUP email which will email ALL domain users. (e.i. "All users within domainName.com") I have some domain users that are telling me that they are NOT receiving their emails. Please and Thanks !

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• Question regarding the SELinux type enforcement file

  - by Luke Bibby

  In my SElinux te file, I define two new types called voice_t and data_t which certain directories will be classified in the fc file (/data/ will be of type data_t and /voice/ will be of type voice_t). I would like the one SELinux policy to be used for all servers in my network, but, some servers will log VoIP data and other servers will be used to log IP data. I only want the voice_t type to be defined on some servers and data_t to be defined on the others - is this possible? I have tried using an if statement with a boolean expression, and then defining the type when the condition is true but this does not seem to work (it tells me there is a syntax error at 'type data_t'' or 'type voice_t;'). Example: if (data_logger) { type data_t; } else { type voice_t; } Any help would be greatly appreciated. Cheers, Luke

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• Windows Question: RunOnce/Second Boot Issues

  - by Greg

  I am attempting to create a Windows XP SP3 image that will run my application on Second Boot. Here is the intended workflow. 1) Run Image Prep Utility (I wrote) on windows to add my runonce entries and clean a few things up. 2) Reboot to ghost, make image file. 3) Package into my ISO and distribute. 4) System will be imaged by user. 5) On first boot, I have about 5 things that run, one of which includes a driver updater (I wrote) for my own specific devices. 6) One of the entries inside of HKCU/../runonce is a reg file, which adds another key to HKLM/../runonce. This is how second boot is acquired. 7) As a result of the driver updater, user is prompted to reboot. 8) My application is then launched from HKLM/../runonce on second boot. This workflow works perfectly, except for a select few legacy systems that contain devices that cause the add hardware wizard to pop up. When the add hardware wizard pops up is when I begin to see problems. It's important to note, that if I manually inspect the registry after the add hardware wizard pops up, it appears as I would expect, with all the first boot scripts having run, and it's sitting in a state I would correctly expect it to be in for a second boot scenario. The problem comes when I click next on the add hardware wizard, it seems to re-run the single entry I've added, and re-executes the runonce scripts. (only one script now as it's already executed and cleared out the initial entries). This causes my application to open as if it were a second boot, only when next is clicked on the add hardware wizard. If I click cancel, and reboot, then it also works as expected. I don't care as much about other solutions, because I could design a system that doesn't fully rely on Microsoft's registry. I simply can't find any information as to WHY this is happening. I believe this is some type of Microsoft issue that's presenting itself as a result of an overstretched image that's expected to support too many legacy platforms, but any help that can be provided would be appreciated. Thanks,

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• NAT / PAT Theoretical Question

  - by dbasnett

  Given the following simplistic network Would it be possible to construct NAT / PAT pools such that the PC's attached to the network could be identified by their port number. I understand that if I assign a public IP to each user I can identify them. What I am trying to do is to conserve Public IP's, but maintain the ability to identify the user from the public network. If your answer is vendor specific that is OK with me. Thanks in advance.

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• question about the progress bar while formatting removable drives in windows

  - by user23950

  Why is the progress bar in windows operating systems not really displaying the progress of the format. It is only displaying when the format is already completed. What I'm trying to say is , you cannot really see that the progress bar is moving until the format is completed.

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• weblogic plug-in apache http server location directive question

  - by user39510

  We are using Weblogic Portal and Apache 2.x http server with the weblogic plug-in for apache for load-balancing. We have an application that right now can only be accessed from one of our managed servers. What I would like to do is use the Location directive to direct all requests for that page to the one managed server and I can't get it to work. The context that the portal tries to forward to is something like /MyWebApp?portalusername= (where equals a legitimate user. For example /MyWebApp?portalusername=joesmith. All other applications and the plug-in is load balancing as expected because every now and then you'll get sent to the second managed server for this particular application and its not deployed. I tried various things in the Apache http.conf like the following but can't seem to get it work. Any suggestions? The following is a snippet of the httpd.conf. Its a standard out of the box httpd.conf file with the weblogic plugin configuration. <Location /MyWebApp> SetHandler weblogic-handler WebLogicCluster myserver:7011 </Location> <Location /?> SetHandler weblogic-handler WebLogicCluster myserver:7011, myserver2:7012 </Location>

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• HP ProCurve Port Mode Configuration Question

  - by SvrGuy

  We have a ProCurve Switch 2810-48G (J9022A). We need to disable auto negotiation on two ports and manually configure them to be full duplex gige ports. From the web GUI, Configuration Tab, Port Configuration sub tab, I am only presented with the option to configure the port as Auto - 1000. I take this to mean, auto negotiate duplex, manually configure the speed to be gige. How do I manually configure the port such that it is manually configured to use full duplex, 1000 mbs?

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• SharePoint Upgade Question

  - by Seth Spearman

  My company will be upgrading our SharePoint 2007 site to SP2010 and I know how to do it. But there is one step in the migration step that I don't. The pre-upgrade checker will give you a list of components/solutions that are referenced in the contentDBs but is not installed on the upgraded sharepoint farm. What do you do if the component is not available for 2010? (I believe the only option is uninstall the component before migration). Even if an upgrade is available for upgraded components won't it have a different GUID and therefore not solve the migration error messages? In other words, isn't it true that "install missing components" advice for 07 components only work if the 07 components works in 2010 (which I think is very few components.). Thanks. Seth

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• blender rendering question

  - by Kombuwa

  hi, I need to render a 3d model that have been implement uv map in blender. When I press the render button it renders with normal blender material. But I need to render it with uv map textures. please help me.

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• Question about network topology and routing performance

  - by algorithms

  Hello I am currently working on a uni project about routing protocols and network performance, one of the criteria i was going to test under was to see what effect lan topology has, ie workstations arranged in mesh, star, ring etc, but i am having doubts as to whether that would have any affect on the routing performance thus would be useless to do, rather i'm thinking it would be better to test under the topology of the routers themselves, ie routers arranged in either star, mesh ring etc. I would appreciate some feedback on this as I am rather confused. Thank You

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• Disc2vhd and partitions question

  - by dotnetdev

  Hi, I am using Disc2Vhd to make a vhd of my drive. Does the tool support partitions? My partitions of C:\ are listed as both drives and volumes. In short, is there any issue when I select both partitions that make one physical drive? Thanks

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• Question about Remote WAN IP on NetGear FVS336G VPN setup

  - by camilian

  I wanted to be able to have a VPN connection to my home network so I purchased the FVS336G because the reviews said it was easy set up. I am sure it is for someone that knows what needs to be entered it is easy, but I am a little confused. Using the VPN wizard I choose VPN Client as the tunnel connection, enter key, etc... but then I get to the "What is the remote WAN's IP or Internet Name" and "What is the local WAN's IP address or Internet Name" I am lost. I am probably being really dumb, but I am not sure what I need to put in here. Is the remote WAN ip the ip from the outside world to my cable modem? Is the local ip the ip to my FVS336G? Any help would be appreciated.

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