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• backface culling error (in world space)

  - by acrilige

  I write simple software renderer. In my pipeline i have stage of backface culling. But looks like it has some error (see picture). I perform culling right after world transformation (is it correct?). (i can't insert picture in post coz i don't have enough points, so i just upload it (cube model): http://imageshack.us/photo/my-images/705/bcerror.png/) Vector3F view_dir(0.0f, 0.0f, 1.0f); std::vector<Triangle> to_remove; for (Triangle &t : m_triangles) { Vector4F e1 = t.v2 - t.v1; Vector4F e2 = t.v3 - t.v1; Vector3F normal( e1.y * e2.z - e1.z * e2.y, e1.z * e2.x - e1.x * e2.z, e1.x * e2.y - e1.y * e2.x ); normal.Normalize(); float dot = Dot(view_dir, normal); if (dot <= 0) to_remove.push_back(t); } for (Triangle& t : to_remove) m_triangles.erase(std::remove(m_triangles.begin(), m_triangles.end(), t), m_triangles.end()); Camera sits in origin and points in screen (RH). What is the reason? For better explanation i upload picture with cube rotation screenshots: http://imageshack.us/photo/my-images/842/bcmove.png/ UPDATED: The error occurs only when triangle has non-zero offset from origin UPDATED 2: If i process backface culling in clip space (after transforming all vertices with view and projection matrix), and just check z coordinate of triangle normal - it works perfect... Can i perform culing RIGHT BEFORE view/proj transforms? In this case looks like culling will not depends of projection and it's not right?.. UPDATED 3: I found answer and will post it in two hours - again coz of reputation lack.

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• How to structure git repositories for project?

  - by littledynamo

  I'm working on a content synchronisation module for Drupal. There is a server module, which sits on ona website and exposes content via a web service. There is a also a client module, which sits on a different site and fetches and imports the content at regular intervals. The server is created on Drupal 6. The client is created on Drupal 7. There is going to be a need for a Druapl 7 version of the server. And then there will be a need for a Drupal 8 version of both the client and the server once it is released next year. I'm fairly new to git and source control, so I was wondering what is the best way to setup the git repositories? Would it be a case of having a separate repository for each instance, i.e: Drupal 6 server = 1 repository Drupal 6 client = 1 repository Drupal 7 server = 1 repository Drupal 7 client = 1 repository etc Or would it make more sense to have one repository for the server and another for the client then create branches for each Drupal version? Currently I have 2 repositories - one for the client and another for the server.

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• New MySQL Enterprise Edition Demo

  - by Bertrand Matthelié

  @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } In case you haven’t seen it yet, we released last week a new MySQL Enterprise Edition Flash Demo. @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }div.Section1 { page: Section1; } This demo helps you understand in only 3 minutes how Oracle’s MySQL Enterprise Edition reduces the risk, cost and time required in developing, deploying and managing business-critical MySQL applications. You can watch it here. After watching the demo, you can easily go ahead and try MySQL Enterprise Edition, and/or get more detailed information in our whitepaper. @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }div.Section1 { page: Section1; } Enjoy the demo!

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• Extract MP3 URL from a SWF file

  - by Charles

  I have a SWF file that basically shows a streamer, and it plays a song (I'm guessing it's MP3) that it links to, somewhere. I know the audio isn't embedded in the file since the SWF's file size is ~370KB. With most flash FLV and MP3 players, Internet Download Manager catches the URL as soon as the video/audio starts to load, and I can easily download it using IDM. In this case, IDM doesn't seem to sense anything - so I thought maybe I could extract the MP3 location myself. I tried decompiling the SWF file, as I'd heard before that with some files, decompiling can help in breaking down a file and getting just the info you need - but I honestly don't know what to look for in this particular file. Suggestions?

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• Can Clojure's thread-based agents handle c10k performance?

  - by elliot42

  I'm writing a c10k-style service and am trying to evaluate Clojure's performance. Can Clojure agents handle this scale of concurrency with its thread-based agents? Other high performance systems seem to be moving towards async-IO/events/greenlets, albeit at a seemingly higher complexity cost. Suppose there are 10,000 clients connected, sending messages that should be appended to 1,000 local files--the Clojure service is trying to write to as many files in parallel as it can, while not letting any two separate requests mangle the same single file by writing at the same time. Clojure agents are extremely elegant conceptually--they would allow separate files to be written independently and asynchronously, while serializing (in the database sense) multiple requests to write to the same file. My understanding is that agents work by starting a thread for each operation (assume we are IO-bound and using send-off)--so in this case is it correct that it would start 1,000+ threads? Can current-day systems handle this number of threads efficiently? Most of them should be IO-bound and sleeping most of the time, but I presume there would still be a context-switching penalty that is theoretically higher than async-IO/event-based systems (e.g. Erlang, Go, node.js). If the Clojure solution can handle the performance, it seems like the most elegant thing to code. However if it can't handle the performance then something like Erlang or Go's lightweight processes might be preferable, since they are designed to have tens of thousands of them spawned at once, and are only moderately more complex to implement. Has anyone approached this problem in Clojure or compared to these other platforms? (Thanks for your thoughts!)

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• Internet explorer crashes in VM Player

  - by Vikram

  My internet explorer is hanging whenever I open it, and all the buttons under Tools menu got disabled. and it always says Connecting... but it will never connects. So I debugged and came to know that IE is opening on some user on VMPlayer not as the user logged in, in my case Administrator. When I open it as 'Run as administrator' it opens fine. By the way I logged into my system as administrator not as a normal user, but still it opens with some other user. Can some one solve this issue. Thanks

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• Cinnamon is broken after upgrade to 13.10

  - by user2306488

  I see reports of people with Unity broken after upgrading to 13.10. In my case Unity works fine but cinnamon is broken. It opens the startup applications but no window manager, no menus and the keyboad shortcuts won't work. As a consequence I can't even log out or shut down cleanly. The logs say: Oct 19 10:32:42 Aveline colord: Profile added: icc-1727cc5030c477b20ad75593e757248d Oct 19 10:32:43 Aveline gnome-session[9157]: WARNING: App 'cinnamon.desktop' exited with code 1 Oct 19 10:32:43 Aveline gnome-session[9157]: WARNING: App 'cinnamon.desktop' respawning too quickly Oct 19 10:32:43 Aveline gnome-session[9157]: CRITICAL: We failed, but the fail whale is dead. Sorry.... Oct 19 10:32:43 Aveline gnome-session[9157]: WARNING: App 'cinnamon.desktop' exited with code 1 Oct 19 10:32:46 Aveline whoopsie[1054]: online Oct 19 10:32:53 whoopsie[1054]: last message repeated 12 times Oct 19 10:32:53 Aveline kernel: [ 1982.637049] python[9626]: segfault at 1511 ip b6c9e850 sp bf8d0980 error 4 in libglib-2.0.so.0.3800.0[b6c5b000+102000] Oct 19 10:32:53 Aveline kernel: [ 1982.837527] python[9631]: segfault at 0 ip b6eb13fa sp b69ff848 error 6 in libdbus-1.so.3.7.4[b6e89000+49000] Oct 19 10:32:54 Aveline kernel: [ 1983.030271] python[9634]: segfault at a6f4098b ip b6e52389 sp bfcdad68 error 4 in libdbus-1.so.3.7.4[b6e34000+49000] Oct 19 10:32:54 Aveline kernel: [ 1983.253259] python[9639]: segfault at 4 ip b6e710f4 sp b69c1bfc error 6 in libdbus-1.so.3.7.4[b6e4b000+49000] Oct 19 10:32:54 Aveline kernel: [ 1983.501771] python[9642]: segfault at b4 ip b6e0f076 sp bf82524c error 4 in libdbus-1.so.3.7.4[b6dfd000+49000] Oct 19 10:32:54 Aveline kernel: [ 1983.721334] python[9647]: segfault at 4 ip b6eab0f4 sp b69fbbfc error 6 in libdbus-1.so.3.7.4[b6e85000+49000] Any idea?

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• Proper updating of GeoClipMaps

  - by thr

  I have been working on an implementation of gpu-based geo clip maps, but there is a section of the GPU Gems 2 article that i just can't seem to understand, specifically this paragraph and more precisely the bolded part: The choice of grid size n = 2k-1 has the further advantage that the finer level is never exactly centered with respect to its parent next-coarser level. In other words, it is always offset by 1 grid unit either left or right, as well as either top or bottom (see Figure 2-4), depending on the position of the viewpoint. In fact, it is necessary to allow a finer level to shift while its next-coarser level stays fixed, and therefore the finer level must sometimes be off-center with respect to the next-coarser level. An alternative choice of grid size, such as n = 2k-3, would provide the possibility for exact centering Let's take an example image from the article: My "understanding" of the way the clip maps were update was that you floor the position of the viewpoint to an int, and such get the center vertex point if this is not the same as the previous center point, you update the entire map. Now, this obviously is not the case - but what I am failing to understand is this: If you look at the image above, if the viewpoint was to move one unit to the right, then the inner ring (the one just around the view point + white center square) would end up getting a 1 unit space on both the left and right side of itself. But there is nothing in the paper that deals with this, what i mean is that it would end up looking like this (excuse my crummy cut-and-paste editing of the above image): This is obviously not a valid state of the. So, would the solution be that a clip ring (layer) can only move in increments of the ring/layer it's contained within? Wouldn't this end up being very restrictive? I feel like I am missing some crucial understanding of parts of the algorithm, but I have been over both this paper and the original paper from 2004 and I just can't see what I am not getting.

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• How to find a hidden stream video/audio link and record it

  - by Stan

  I've been using 'URL snooper' to find the hidden streaming url. And feed that url to VLC to record streaming video/audio. But the VLC can't read those url. Then I also found that the url is like a floating url that changes every several hours. So the same audio station won't have same url. The streaming audio provider has bunches of audio stations and shuffle the link frequently. Is there any way to record the streaming media in this case? Please advise, thanks.

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• "Play on another device" function not working with Samsung Allshare

  - by Tural Teyyuboglu

  Briefly I can't get work "Play on another device" function More detailed My Samsung TV (which support network) and PC are in the same network. The problem is, I can play PC contents from TV. But when I try to control TV remotely from Allshare software (PC), it shows TV only as connected device: But not as remote player in "players" list The result Tried to turn off firewall completely, reset router, re-install software. No success. Please help. BTW. On this link they kinda explained how to do it, but I software doesn' detect the TV as player in my case: http://www.samsung.com/global/allshare/pcsw/quickguide.html

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• Virtualization or Raw Metal?

  - by THE

  Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} With the growing number of customers who want to run the Oracles EPM/BI (or other Fusion Middleware Software) in a virtualized environment, we face a growing number of people asking if running Oracle Software within VMware is supported or not. Two KM articles reflect Oracles policy towards the use of VMware: 249212.1 and 475484.1 . The bottom line is: “you may use it at your own risk, but Oracle does not recommend it”. So far we have seen few problems with the use of VMware (other than performance and the usual limitations) but Oracle does not certify its software for the use in VMware (and specifically for RAC Software actively refuses any support) and any issue that may occur will be fixed for the native OS only. It is on the customer to prove that the issue is NOT due to VMware in case that an issue is encountered. See: “Oracle Fusion Middleware Supported System Configurations page” And also “Supported Virtualization and Partitioning Technologies for Oracle Fusion Middleware”

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• CodePlex Daily Summary for Thursday, June 05, 2014

  CodePlex Daily Summary for Thursday, June 05, 2014Popular Releases51Degrees - Device Detection and Redirection: 3.1.2.3: Version 3.1 HighlightsDevice detection algorithm is over 100 times faster. Regular expressions and levenshtein distance calculations are no longer used. The device detection algorithm performance is no longer limited by the number of device combinations contained in the dataset. Two modes of operation are available: Memory – the detection data set is loaded into memory and there is no continuous connection to the source data file. Slower initialisation time but faster detection performanc...CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.27.0: CodeMap now indicates the type name for all members Implemented running scripts 'as administrator'. Just add '//css_npp asadmin' to the script and run it as usual. 'Prepare script for distribution' now aggregates script dependency assemblies. Various improvements in CodeSnipptet, Autcompletion and MethodInfo interactions with each other. Added printing line number for the entries in CodeMap (subject of configuration value) Improved debugging step indication for classless scripts ...Load Runner - HTTP Pressure Test Tool: Load Runner 1.1: 1. added support for measuring total in time / hits / traffic / requests 2. abstracted log, default log to console / text file 3. refactored codeKartris E-commerce: Kartris v2.6003: Bug fixes: Fixed issue where category could not be saved if parent categories not altered Updated split string function to 500 chars otherwise problems with attribute filtering in PowerPack Improvements: If a user has group pricing below that available through qty discounts, that will show in place of the qty discountMagicaVoxel: MagicaVoxel Renderer ver 0.01: MagicaVoxel Renderer (Win 0.01)ClosedXML - The easy way to OpenXML: ClosedXML 0.72.3: 70426e13c415 ClosedXML for .Net 4.0 now uses Open XML SDK 2.5 b9ef53a6654f Merge branch 'master' of https://git01.codeplex.com/forks/vbjay/closedxml 727714e86416 Fix range.Merge(Boolean) for .Net 3.5 eb1ed478e50e Make public range.Merge(Boolean checkIntersects) 6284cf3c3991 More performance improvements when saving.MCE Controller: MCE Controller V1.8.6: BETA. Adds option to disable all internal commands. If the "Disable Internal Commands" checkbox in settings is checked, MCE Controller will disable all internally defined commands (e.g. VK key codes, single characters, mouse commands, etc...) and only respond to commands defined in the MCEControl.commmands file. Attempts to fix inability for clients to reconnect after they forcibly close the connection. Build 1.8.6.37445Visual F# Tools: Daily Builds Preview 06-04-2014: This preview is released for use under a proprietary license.SEToolbox: SEToolbox 01.032.018 Release 1: Added ability to merge/join two ships, regardless of origin. Added Language selection menu to set display text language (for SE resources only), and fixed inherent issues. Added full support for Dedicated Servers, allowing use on PC without Steam present, and only the Dedicated Server install. Added Browse button for used specified save game selection in Load dialog. Installation of this version will replace older version.Service monitor: Version 3.1: Added the ability of the tool to restart itself in 'Admin' mode without UAC prompt. Note that this only works after the tool has run in 'Admin' mode at least once before. This is only supported on Vista, Windows 7 or later. See my blog post on how it is done.DNN Blog: 06.00.07: Highlights: Enhancement: Option to show management panel on child modules Fix: Changed SPROC and code to ensure the right people are notified of pending comments. (CP-24018) Fix: Fix to have notification actions authentication assume the right module id so these will work from the messaging center (CP-24019) Fix: Fix to issue in categories in a post that will not save when no categories and no tags selectedTEncoder: 4.0.0: --4.0.0 -Added: Video downloader -Added: Total progress will be updated more smoothly -Added: MP4Box progress will be shown -Added: A tool to create gif image from video -Added: An option to disable trimming -Added: Audio track option won't be used for mpeg sources as default -Fixed: Subtitle position wasn't used -Fixed: Duration info in the file list wasn't updated after trimming -Updated: FFMpegQuickMon: Version 3.14 (Pie release): This is unofficially the 'Pie' release. There are two big changes.1. 'Presets' - basically templates. Future releases might build on this to allow users to add more presets. 2. MSI Installer now allows you to choose components (in case you don't want all collectors etc.). This means you don't have to download separate components anymore (AllAgents.zip still included in case you want to use them separately) Some other changes:1. Add/changed default file extension for monitor packs to *.qmp (...VeraCrypt: VeraCrypt version 1.0d: Changes between 1.0c and 1.0d (03 June 2014) : Correct issue while creating hidden operating system. Minor fixes (look at git history for more details).Keepass2Android: 0.9.4-pre1: added plug-in support: See settings for how to get plug-ins! published QR plug-in (scan passwords, display passwords as QR code, transfer entries to other KP2A devices) published InputStick plugin (transfer credentials to your PC via bluetooth - requires InputStick USB stick) Third party apps can now simply implement querying KP2A for credentials. Are you a developer? Please add this to your app if suitable! added TOTP support (compatible with KeeOTP and TrayTotp) app should no l...Microsoft Web Protection Library: AntiXss Library 4.3.0: Download from nuget or the Microsoft Download Center This issue finally addresses the over zealous behaviour of the HTML Sanitizer which should now function as expected once again. HTML encoding has been changed to safelist a few more characters for webforms compatibility. This will be the last version of AntiXSS that contains a sanitizer. Any new releases will be encoding libraries only. We recommend you explore other sanitizer options, for example AntiSamy https://www.owasp.org/index....Z SqlBulkCopy Extensions: SqlBulkCopy Extensions 1.0.0: SqlBulkCopy Extensions provide MUST-HAVE methods with outstanding performance missing from the SqlBulkCopy class like Delete, Update, Merge, Upsert. Compatible with .NET 2.0, SQL Server 2000, SQL Azure and more! Bulk MethodsBulkDelete BulkInsert BulkMerge BulkUpdate BulkUpsert Utility MethodsGetSqlConnection GetSqlTransaction You like this library? Find out how and why you should support Z Project Become a Memberhttp://zzzproject.com/resources/images/all/become-a-member.png|ht...Tweetinvi a friendly Twitter C# API: Tweetinvi 0.9.3.x: Timelines- Added all the parameters available from the Timeline Endpoints in Tweetinvi. - This is available for HomeTimeline, UserTimeline, MentionsTimeline // Simple query var tweets = Timeline.GetHomeTimeline(); // Create a parameter for queries with specific parameters var timelineParameter = Timeline.CreateHomeTimelineRequestParameter(); timelineParameter.ExcludeReplies = true; timelineParameter.TrimUser = true; var tweets = Timeline.GetHomeTimeline(timelineParameter); Tweetinvi 0.9.3.1...Sandcastle Help File Builder: Help File Builder and Tools v2014.5.31.0: General InformationIMPORTANT: On some systems, the content of the ZIP file is blocked and the installer may fail to run. Before extracting it, right click on the ZIP file, select Properties, and click on the Unblock button if it is present in the lower right corner of the General tab in the properties dialog. This release completes removal of the branding transformations and implements the new VS2013 presentation style that utilizes the new lightweight website format. Several breaking cha...Magick.NET: Magick.NET 6.8.9.101: Magick.NET linked with ImageMagick 6.8.9.1. Breaking changes: - Int/short Set methods of WritablePixelCollection are now unsigned. - The Q16 build no longer uses HDRI, switch to the new Q16-HDRI build if you need HDRI.New Projects12306helper: 12306 ????2112110044: dasda2112110202: asdfsdfsdfsd2112110298: TieuDan2112110315: vftgcdxfrBaidu PCS: BaiduPCSExcel2Sobek: Here the project Excel2Sobek is hosted. Excel2Sobek is a preprocessor in Excel's VBA for the SOBEK 2 hydrological and hydraulic simulation model by Deltares.Help Desk Pro: Manage a business of customer serviceMARGYE: MARGYE CMS CMR E-CommerceMemberBS: MemberBS20140605MiKroTik API: Api untuk menghubungkan aplikasi anda dengan router Mikrotik.MiniProfiler + Log4Net: Use MiniProfiler and Log4Net in ASP.NET projectStore Apps Unity App Base for Prism: This simple library provides an Application Base for a Windows Store application that automatically connects Unity to provide injection as the container.SuperCaptcha for MVC: Custom captcha control for MVCTC760240: myappwithfailuresWindows Phone 8 Dilbert Comic Reader: Basic WP8.1 app that displays comics from http://www.dilbert.com.x86 Proved: Prove what you run!

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• X11 for apache user

  - by fuenfundachtzig

  We are using inkscape to convert SVG images uploaded to our server via a web form. For this inkscape offers a batch mode via the -z option, but this batch mode has a flaw: When inkscape is run by the apache user, it breaks saying $ inkscape -z -W drawing.svg X11 connection rejected because of wrong authentication. The application 'inkscape' lost its connection to the display localhost:11.0; most likely the X server was shut down or you killed/destroyed the application. If you do the same as a normal user you also get errors: Xlib: connection to "localhost:11.0" refused by server Xlib: PuTTY X11 proxy: MIT-MAGIC-COOKIE-1 data did not match (inkscape:24050): Gdk-CRITICAL **: gdk_display_list_devices: assertion `GDK_IS_DISPLAY (display)' failed 301.27942 But at least inkscape gives the correct answer (here the number stating the width of the image). Does somebody know how to make this also work for the apache user? Does it make sense to authorize apache to use X (if so how)? In any case it doesn't feel like the right solution...

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• OpenSSH SFTP: chrooted user with access to other chrooted users' files

  - by HannesFostie

  Decided to re-phrase the question entirely in order to not have to make a new one. I currently have an SFTP server set up using OpenSSH's SFTP functionality. All my users are chrooted, and everything works. What I need most right now is for one user, which is not root (because this user can't have any real SSH powers!), to have access to all other users' chrooted dirs. This user's job is to fetch all uploaded documents every once in a while. Directory structure as of now is: /home |_ /home/user1 |_ /home/user2 |_ /home/user3 With ChrootDirectory set as /home/%u User "adminuser" should have access to user1, user2 and user3's directories without having access to /home or at the very least not to anything but /home. Bonus points for the one who can tell me how to let users write inside /home/%u without having to make a new directory inside that dir which they own themselves, and not root as is the case with /home/%u (openssh chroot prerequisite).

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• Should I Return My iPhone?

  - by Daniel

  got an iPhone 3G S about 20 days ago. That means I can return it no problem for the next 10 days. Should I return it, wait about 6 weeks, and get the iPhone 4.0 instead? I also put about $25 towards accessories but I could probably sell them for $15. Is it worth it not having it for those 6 weeks? Or should I just go with the free update, keep my screen protectors and case, and "survive" without the phone. What new features will come with the phone? My understanding is that most of the features will be part of the upgrade. My other option will probably be to give it back and then when they make the official announcement, buy the 3G S for maybe $99 if they drop the price that much.

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• How can I make results of a formula values that can be filtered or use vlookup with Excel

  - by Burt

  I am having an issue in that I am using various formulas to move, split data, etc from various sources. The problem is when my final results post to the final destination that I want, I still need to either run advanced filters, or a vlookup with the results. I can’t do this because as an example if cell A1 shows a value of: A127 the actual cell content is: =RIGHT(A2,FIND(" ",A2&" ")-2) Everything I read said to copy and paste special values, but this doesn’t work for me as the idea is to have the formulas/macros run everything and eliminating cutting and pasting. In the case above I have a formula that pulls that info from a spreadsheet that is saved every week. Once it is pulled part of it is cut out in another column. I then need to run a vlookup on those results for data already contained on another tab.

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• SQL Server Transaction Log RAID

  - by Eric Maibach

  We have three SQL Server servers, and each server has a about five or six databases on it. We are in the process of moving these servers to a new SAN and I am working on the best RAID configuration. Currently all of the log files for all of the databases share a RAID array, there is nothing else on this RAID array except for the log files, but all of the databases use this same array for their log files. I have read that it is best to have log files on separate disks. But in our case I am not sure whether it would be best to have one big array with about 8 drives that all the log files are on. Or would it be better to create four two disk arrays and give some of the larger databases their own dedicated disks for their log files?

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• PHP file gets download instead of getting executed when browsed in any browser

  - by baltusaj

  I have a phpinfo.php file which I am trying to run by browsing to it using browser but the browser downloads the file instead of executing it. phpinfo.php <?php phpinfo(); ?> I followed following this post, added following lines to my /etc/apache2/httpd.conf and restarted apache but invain. phpinfo.php still gets downloaded. AddType application/x-httpd-php .php .phtml AddType application/x-httpd-php-source .phps Have I added these line to the correct file? On an openSuSE forum following was mentioned. I followed this too but still no success. Same problem is persisting. In case the browser wants to save your php files instead of displaying the content, you should enable php support in the /etc/apache2/mod_userdir.conf file. Add the following line to it, just after the line and restart the server. Include /etc/apache2/conf.d/php5.conf

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• Snow Leopard, PHP, and MySQL

  - by Peter

  I have just installed Snow Leopard and now my PHP/MySQL program ends in a "Segmentation fault". I have been searching the web for a solution, I realize that there are some issues with SL/PHP/MySQL, but I have not found anything that works yet. I downloaded the binary MySQL package mysql-5.1.42-osx10.6-x86_64. I have updated the php.ini file as suggested at various posts. When I run PHP and connect to the MySQL server the behavior is a bit random. In many cases it works fine to connect and read data. In my specific case the PHP program constructs a LOAD DATA LOCAL INFILE ... statement to load data from a text file. It should do several such queries after each other in a loop. It works one time but the halts in a "Segmentation fault". The program worked fine in Leopard, but not now. My versions are: OS 10.6.2, PHP 5.3.0, MySQL 5.1.42

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• Is it safer to use the same IV all times data are encrypted, or use a dynamic IV that is sent together the encrypted text? [closed]

  - by kiamlaluno

  When encrypting data that is then send to a server, is it better to always use the same IV, which is already known from the receiving server, or use a dynamic IV that is then sent to the receiving server? I am referring to the case the remote server receives data from another server, or from a client application, and executes operations on a database table, in the table row identified by the received data. Which of the following PHP snippets is preferable? $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND); $ks = mcrypt_enc_get_key_size($td); $key = substr(md5('very secret key'), 0, $ks); mcrypt_generic_init($td, $key, $iv); $encrypted = mcrypt_generic($td, 'This is very important data'); send_encripted_data(combine_iv_encrypted_text($iv, $encrypted)); $ks = mcrypt_enc_get_key_size($td); $key = substr(md5('very secret key'), 0, $ks); mcrypt_generic_init($td, $key, $iv); send_encripted_data(mcrypt_generic($td, 'This is very important data')); In which way is one of the snippets more vulnerable than the other one?

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• Motherboard max memory supported

  - by Ashfame

  I have an Intel DG965RY motherboard and its specification says it supports 8GB with 533 or 667Mhz RAM sticks and only 4GB with 800Mhz RAM sticks. I am running a 64bit OS. I earlier had 2 X 1GB sticks (800Mhz), so I bought 2 X 2GB sticks (800Mhz) and I underclocked them in the settings to run at 667Mhz. Shouldn't it support all 6GB RAM now? It would be a bummer if I will specifically need 667Mhz sticks thinking that at the worst they will underclock and then run at 667Mhz. I tried this because I saw someone posted at some forum that he put in 4GB+ of RAM in the same board @ 800Mhz and the system uses it all. In my case (On Ubuntu), it only shows 3.2GB as of now (link to Question) so needed to confirm if this is a hardware limitation.

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• Have both domain and non-domain users use NetApp CIFS storage

  - by zladuric

  My specific use case is that I have a NetApp CIFS storage that's in the domain, say, intranet. But I also have one hyper-v host that's not in the domain. I can't allow it into the domain, but I need to create guests whose VHD is on the storage. How can I achieve this? When I simply connect to a CIFS share and create a VHD there, it works, but when I try to add that VHD to the virtual machine, I get a "Failed to set folder permissions" error - probably due to folder ownership being in the domain admin. Is there a way around this? So both domain and non-domain users use the same directory?

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• Using PDO with MVC

  - by mister martin

  I asked this question at stackoverflow and received no response (closed as duplicate with no answer). I'm experimenting with OOP and I have the following basic MVC layout: class Model { // do database stuff } class View { public function load($filename, $data = array()) { if(!empty($data)) { extract($data); } require_once('views/header.php'); require_once("views/$filename"); require_once('views/footer.php'); } } class Controller { public $model; public $view; function __construct() { $this->model = new Model(); $this->view = new View(); // determine what page we're on $page = isset($_GET['view']) ? $_GET['view'] : 'home'; $this->display($page); } public function display($page) { switch($page) { case 'home': $this->view->load('home.php'); break; } } } These classes are brought together in my setup file: // start session session_start(); require_once('Model.php'); require_once('View.php'); require_once('Controller.php'); new Controller(); Now where do I place my database connection code and how do I pass the connection onto the model? try { $db = new PDO('mysql:host='.DB_HOST.';dbname='.DB_DATABASE.'', DB_USERNAME, DB_PASSWORD); $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); } catch(PDOException $err) { die($err->getMessage()); } I've read about Dependency Injection, factories and miscellaneous other design patterns talking about keeping SQL out of the model, but it's all over my head using abstract examples. Can someone please just show me a straight-forward practical example?

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• Should USB controller drivers be updated?

  - by Coldblackice

  Should USB controller drivers be updated? In Windows 7, many of the core system devices/buses/controllers still use stock Microsoft drivers dating back to 2006 -- things such as USB controllers and the PCI bus (and subsequent devices in the tree). Should these be getting updated? I would think that surely there would have been improvements/fixes/updates to some or any of these drivers by now, now over 7 years old. Does Windows know "best" in this case, updating these respective drivers when it's needed, or should the user be keeping an eye out for drivers in this "vein" of devices (meaning integrated/core/non-pluggable system devices that are built into the motherboard)?

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• XNA 4.0, Combining model draw calls

  - by MayContainNuts

  I have the following problem: The levels in my game are made up of a Large Quantity of small Models and because of that I am experiencing frame rate problems. I already did some research and came to the conclusion that the amount of draw calls I am making must be the root of my problems. I've looked around for a while now and couldn't quite find a satisfying solution. I can't cull any of those models, in a worst case scenario there could be 1000 of them visible at the same time. I also looked at Hardware geometry Instancing, but I don't think that's quite what I'm looking for, because the level consists of a lot of different parts. So, what I'd like to do is combining 100 or 200 of these Models into a single large one and draw it as a whole 'chunk'. The whole geometry is static so it wouldn't have to be changed after combining, but different parts of it would have to use different textures (I think I can accomplish that with a texture atlas). But I have no idea how to to that, so does anybody have any suggestions?

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