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• Allow different headers on different servers using WFF

  - by Brian

  We've got multiple web servers configured in a cluster using Microsoft's Web Farm Framework. One of the things I like to do to help debugging is to create a header in IIS that identifies the server that handled the request. Unfortunately when I try to do this, WFF sets the headers to the same value on all the servers. Is there a way around this? I tried looking into using skipDirectives, but I can't find any documentation on it (other than a little bit showing how to use it to skip directories and bindings). If there is documentation on this, please link to it! I would like to be able to read up more on it in case I need to do other things as well.

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• is there a way to automate changing filenames in <link> , <script> tags

  - by nepsdotin

  when we use Expires header for text files like js, css, contents are cached in the browser, to get new content we need to change in the html file the new names in the link and script tag. When we add changes. How can we automate it. I may have some bunch of html files in multiple folders also in subdirectories. There would be a text file filelist.txt OldName NewName oldfile1-ver-1.0.js oldfile1-ver-2.0.js oldfile2-ver-1.0.js oldfile2-ver-2.0.js oldfile3-ver-1.0.js oldfile3-ver-2.0.js oldfile4-ver-1.0.js oldfile4-ver-2.0.js The script should change all the oldfile1-ver-1.0.js into oldfile1-ver-2.0.js in the html, php files I would run this script before i start uploading. Finally the script could create a list of files and line number where it made the update. The solution can be in PERL/PHP/BATCH or anything thats nice and elegant

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• What's a way to implement a flexible buff/debuff system?

  - by gkimsey

  Overview: Lots of games which RPG-like statistics allow for character "buffs", ranging from simple "Deal 25% extra damage" to more complicated things like "Deal 15 damage back to attackers when hit." The specifics of each type of buff aren't really relevant. I'm looking for a (presumably object-oriented) way to handle arbitrary buffs. Details: In my particular case, I have multiple characters in a turn-based battle environment, so I envisioned buffs being tied to events like "OnTurnStart", "OnReceiveDamage", etc. Perhaps each buff is a subclass of a main Buff abstract class, where only the relevant events are overloaded. Then each character could have a vector of buffs currently applied. Does this solution make sense? I can certainly see dozens of event types being necessary, it feels like making a new subclass for each buff is overkill, and it doesn't seem to allow for any buff "interactions". That is, if I wanted to implement a cap on damage boosts so that even if you had 10 different buffs which all give 25% extra damage, you only do 100% extra instead of 250% extra. And there's more complicated situations that ideally I could control. I'm sure everyone can come up with examples of how more sophisticated buffs can potentially interact with each other in a way that as a game developer I may not want. As a relatively inexperienced C++ programmer (I generally have used C in embedded systems), I feel like my solution is simplistic and probably doesn't take full advantage of the object-oriented language. Thoughts? Has anyone here designed a fairly robust buff system before?

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• Is there a way to obtain a Dell server's RAID configuration/level using only winrm/wsman? (ESXi servers)

  - by EGr

  I've seen videos describing how to configure RAID using wsman/winrm commands run against a server's iDRAC, but I can't seem to find anything that will just give me the current configuration and RAID levels. Is this possible? What uri would I use? If it matters, this is being run against M610s. Edit: If there is an easier way to obtain this information by running a script against the iDRAC, I'm not opposed to switching my methods. EDIT: The server is running ESXi, so if there is a way to obtain this through the vSphere client or PowerCLI, I can do that too. Overall, I just need a way to obtain the RAID configuration for multiple servers without having to query against the actual server (eg: via the iDRAC).

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• Lightweight, low cost enterprise backup solution

  - by Scott

  Looking for a backup solution primarily for Windows clients (XP/7), that will either back up to 2 different servers (1 on site, 1 off site - internet - can be our own server), or back up to 1 server and then we would need to somehow backup that server offsite/internet. By lightweight, I mean the backup client software should not eat up much memory and processor since some of the client machines are older. I am used to using Crashplan for home use - the pricing is nice for the amount of backup I get, and it works great / easy to install and get going - I can back up to my own machines locally and over the net. However, the price is going to be a little steep for enterprise level backup, 1500+ machines. Possibly ZManda and Bacula are good choices to consider? Are they light weight? Can the clients/agents be set to go over the net and/or multiple backup servers?

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• RJ45 female to male fault

  - by GeoPhoenix

  i have the following - common - problem, on one end of the cable, there are RJ45 males T586 A which are connected to a 8-port switcher, on the other end, there supposed to be RJ45 females _T586 A which in turn will allow another RJ45 male to be connected. the commonly used color scheme was followed on males (having the head down) blue white blue orange white green green white orange brown white brown the problem i believe is located on female end of cable, which i try multiple time to follow the numbers designated by the module, which is the list above in reverse, and as listed resulting in no signal transmission. tried the T586B (both ends) for device to device once, but no results. Which is the proper way of handling this wiring? There were also additional RJ45 females with the numbers 6-5-4-3, but 1 to 8 isn't supposed to be used for this?

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• Flash Player for IPTV

  - by Le Mystique

  Hi All, We have to design a flash player for three video sources of IPTV. Educational videos on the system that can be played on demand. (VOD or Video on Demand local) Streaming videos available on different websites that can be played on demand (VOD or Video on Demand remote) IPTV live streaming video feed Videos from three sources have to be played within single flash player that we need to design. There are 2 basic requirements: For the two VOD types, we have to provide the pause and play functionality. For IPTV, pause and play is not required, However, channel switching time is critically important here. The user should get the program behaviour as close to TV experience as possible. This means channel switching should be fast. To provide this, buffering of video is required for multiple channels. Now the questions is, is this possible? If yes, how? Secondly, what skill set (e.g. action script 3.0 , flash 10) should the flash programmer have to be able to design this? Thirdly is it as simple as making a normal FLV player? Or is it a more complex job?

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• Mail.app doesn't see mail changes; requires mailbox "rebuild"

  - by vy32

  I use Mail.app on 4 different computers to access the same mailboxes. I see the same problem on all of them --- if the Mail.app is running, then it catches all of the mail updates. But if a machine is turned off, when it turns back on the mailbox doesn't synchronize properly. I might delete 20 mail messages on one system and they are still on system #2 until I "rebuild." I have seen this happen with the Mobile Me IMAP server, with Gmail, with courier IMAP, and with dovecot. Does anybody else see this? What should I do? Is there a mail server that this happens less with? It's very frustrating, as I get 200-300 mail messages a day and frequently end up handling email messages multiple times.

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• Excel - How to count matches in data?

  - by JunkUtopia

  I am looking for patterns in the user journey of converted customers. I have each customers details in a row and then each step of the journey in it's own cell in columns, with up to 12 steps for each customer. For example if I want to find the count of every customer who at any point in their journey has for example, downloaded a pdf and contacted us via email, what formula is best suited to this? I've tried countifs but couldn't get it to work over multiple columns. Thank you.

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• Is it possible to temporarily disable non-global zones?

  - by Gary

  I frequently need to install a package on the global zone for a quick test on a development box. When there are multiple prompts for one package I have to answer them for each zone. If the zone is not running then I need to wait for the zone to start up, answer the prompts, etc. This is particularly annoying when if I'm getting packages from http://www.sunfreeware.com and using the pkg-get utility which nicely pulls in dependencies for you. Can I disable the zones temporarily? I haven't found a way to do this. Thanks.

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• once VPNed into pfSense, unable to hit the public URLs of my websites - they are routed to the pfSense box

  - by Sean

  I have a pfSense box setup as the firewall/router/VPN appliance at my colo. Once I VPN into the colo (either pptp or openvpn, pptp preferred due to multiple clients and ease of configuration), I am able to hit all my servers by their private 10.10.10.x ip and am able to browse the public internet without issue. When I try and hit the URL of a domain hosted by one of my servers, I am prompted for credentials. If I login using the pfSense credentials, I'm connected to pfSense as if I'd used it's internal IP. If I hack my hosts file to point url - server private IP it works fine, but this is obviously not a good solution. To recap: not connected to VPN - www.myurl.com works connected to VPN - www.myurl.com never makes it to the correct server, but is sent only to the pfSense box I'm sure it's something small that I've missed in the pfSense config.

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• Help me choose an Open-Source license

  - by Spartan-117A

  So I've done lots of open-source work. I have released many projects, most of which have fallen under GPL, LGPL, or BSD licensing. Now I have a new project (an implementation library), and I can't find a license that meets my needs (although I believe one may exist, hence this question). This is the list of things I'm looking for in the license. Appropriate credit given for ALL usage or derivative works. No warranty expressed or implied. The library may be freely used in ANY other open-source/free-software product (regardless of license, GPL, BSD, EPL, etc). The library may be used in closed-source/commercial products ONLY WITH WRITTEN PERMISSION. GPL - Useless to me, obviously, as it completely precludes any and all closed-source use, violating requirement (4). BSD/LGPL/MIT - Won't work, because they wouldn't require closed-source developers to get my permission, violating requirement (4). If it wasn't for that, BSD (FreeBSD in particular) would look like a good choice here. EPL/MPL - Won't work either, as the code couldn't be combined with GPL-code, therefore violating requirement (3). Also I'm pretty sure they allow commercial works without asking permission, so they don't meet (4) either. Dual-licensing is an option, but in that case, what combination would hold to all four requirements? Basically, I want BSD minus the commercial use, plus an option to use in commercial/closed-source as long as the developer has my written permission. EDIT: At the moment, thinking something like multiple-licensing under GPL/LGPL plus something else for commercial?

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• 12.04 WiFi issue on a particular access point

  - by user71706

  I have a WiFi access point that I connect to a PC to share its Internet connection with multiple machines, in a training environment. All the machines with 11.04 connect to this access point with no problem, and can access any server on the Internet. These machines have an Intel Wireless -N 1030 BGN chipset (as reported by lspci). Now, my problem is that I don't manage to connect 12.04 machines to this wireless network. The systems I tried do manage to connect (confirmed by Network Manager), but when I try to access a website like http://kernel.org, the browser shows "Connecting to kernel.org...", but displays a "The connection has timed out" error page. Other symptoms: Name resolution works (for example 'nslookup kernel.org') finds kernel.org's IP address 'ping kernel.org' doesn't work The same 12.04 machines have no problem at all with other wireless networks. So there is probably something weird in my access point (though the 11.04 machines are not impacted). Would you have any suggestions for investigating this issue? Thanks, Michael.

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• design for supporting entities with images

  - by brainydexter

  I have multiple entities like Hotels, Destination Cities etc which can contain images. The way I have my system setup right now is, I think of all the images belonging to this universal set (a table in the DB contains filePaths to all the images). When I have to add an image to an entity, I see if the entity exists in this universal set of images. If it exists, attach the reference to this image, else create a new image. E.g.: class ImageEntityHibernateDAO { public void addImageToEntity(IContainImage entity, String filePath, String title, String altText) { ImageEntity image = this.getImage(filePath); if (image == null) image = new ImageEntity(filePath, title, altText); getSession().beginTransaction(); entity.getImages().add(image); getSession().getTransaction().commit(); } } My question is: Earlier I had to write this code for each entity (and each entity would have a Set collection). So, instead of re-writing the same code, I created the following interface: public interface IContainImage { Set<ImageEntity> getImages(); } Entities which have image collections also implements IContainImage interface. Now, for any entity that needs to support adding Image functionality, all I have to invoke from the DAO looks something like this: // in DestinationDAO::addImageToDestination { imageDao.addImageToEntity(destination, imageFileName, imageTitle, imageAltText); // in HotelDAO::addImageToHotel { imageDao.addImageToEntity(hotel, imageFileName, imageTitle, imageAltText); It'd be great help if someone can provide me some critique on this design ? Are there any serious flaws that I'm not seeing right away ?

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• Virtual Hosting in RHEL5

  - by Kumar P

  We having RHEL5 linux server with few windows xp clients. We providing web development in php. Now my developers as for common local php server for keep their projects in same place. Currently proxy server and samba sharing are running in RHEL5 server. I installed httpd,php,MySQL in server. And i would like to configure virtual hosting too for LAN. What i want do for it ? In server we have 2 Ethernet ports, 1 for local connection and another one for Internet. Internet provided by ADSL provider. (192.168.0.0 series for ADSL modem connection and 10.1.1.0 for LAN connection. If i want to use virtual hosting , am i want to setup local DNS server ? My requirements are, setup php with mySQL server for Local clients with multiple hosting , without disturbing proxy and samba. Help me to solve it.

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• canvas tile grid, hover effects, single tilesheet, etc

  - by user121730

  I'm currently in the process of building both the client and server side of an html5, canvas, and WebSocket game. This is what I have thus far for the client: http://jsfiddle.net/dDmTf/7/ Current obstacles The hover effect has no idea what to put back after the mouse leaves. Currently it's just drawing a "void" tile, but I can't figure out how to redraw a single tile without redrawing the whole map. How would I go about storing multiple layers within the map variable? I was considering just using a multi-dimensional array for each layer (similar to what you see as the current array), and just iterating through it, but is that really an efficient way of doing it? Side note The tile sheet being used for the jsfiddle display is only for development. I'll be replacing it as things progress in the engine. I hope you can help! Hopefully you guys can help me, I've been struggling to get through things, since I'm learning how things kind of stuff works as I go. If you guys have any pointers for my JavaScript, feel free. As I'm more or less learning advanced usage as I go, I'm sure I'm doing plenty of things wrong. Note: I will continue to update this post as the engine improves, but updating the jsfiddle link and updating the obstacles list by striking things that have been solved, or adding additions. Thanks!

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• Service layer coupling

  - by Justin

  I am working on writing a service layer for an order system in php. It's the typical scenario, you have an Order that can have multiple Line Items. So lets say a request is received to store a line item with pictures and comments. I might receive a json request such as { 'type': 'Bike', 'color': 'Red', 'commentIds': [3193,3194] 'attachmentIds': [123,413] } My idea was to have a Service_LineItem_Bike class that knows how to take the json data and store an entity for a bike. My question is, the Service_LineItem class now needs to fetch comments and file attachments, and store the relationships. Service_LineItem seems like it should interact with a Service_Comment and a Service_FileUpload. Should instances of these two other services be instantiated and passed to the Service_LineItem constructor,or set by getters and setters? Dependency injection seems like the right solution, allowing a service access to a 'service fetching helper' seems wrong, and this should stay at the application level. I am using Doctrine 2 as a ORM, and I can technically write a dql query inside Service_LineItem to fetch the comments and file uploads necessary for the association, but this seems like it would have a tighter coupling, rather then leaving this up to the right service object.

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• how to make a continuous machine gun sound-effect

  - by Jan

  I am trying to make an entity fire one or more machine-guns. For each gun I store the time between shots (1.0 / firing rate) and the time since the last shot. Also I've loaded ~10 different gun-shot sound-effects. Now, for each gun I do the following: function update(deltatime): timeSinceLastShot += deltatime if timeSinceLastShot >= timeBetweenShots + verySmallRandomValue(): timeSinceLastShot -= timeBetweenShots if gunIsFiring: displayMuzzleFlash() spawnBullet() selectRandomSound().play() But now I often get a crackling noise (which I assume is when two or more guns are firing at the same time and confuse the sound-device). My question is whether A) This a common problem and there is a well-known solution, maybe to do with the channels or something, or B) I am using a completely wrong approach to the task. I had a look at some sound-assets for other games and they used complete burst with multiple shots. I suppose I could try that, but I would like to have organic little hickups in the gun-fire (that's what the random value is for) to make the game more gritty and dirty. I am using Panda3D, but I had the exact same problem in PyGame and SDL. [edit] Thanks a lot for the answers so far! One more problem with faking it though: Now how do I stop the sound? Let's say I have an effect with 5 bangs... *bang* *bang* *bang* *bang* *bang* And I magically manage to loop it so that there's no gap or overlap if the player fires more than 5 shots. Now, what do I do if the player stops firing halfway through the third bang? How do I know how long to keep playing the sample so that the third bang is completed and I can start playing the rumbling echo of the last shot? Of course I can look up the shot/pause timing of that sound-sample and code accordingly, but it feels extremely hacky.

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• Stress test a server for simultaneous connection

  - by weston smith

  I am trying to figure out a practical way to stress test a server for 300 to 600 simultaneous connections. Any advice? Thank you everyone for the help. To be more specific (sorry I wasn't before) this is a Flash Media Server on AWS that will be streaming live video. I've been having problems with the video freezing/buffering for everyone and I need to verify if its on the user end, upload end, or server end. I mainly need help with stress testing the server with 300-600 multiple request before going live.

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• Introducing Code Map for Visual Studio 2012 September CTP

  - by krislankford

  As part of the Visual Studio 2012 CTP for September, Visual Studio got a little sexier at helping you discover and visualize your code. The introduction of the Code Map feature helps compliment the variety of other tools that are included with Visual Studio to help you analyze and visualize your projects and solutions. Code Map leverages the dgml format within Visual Studio that is currently used b the Architecture and Modeling tools. This is a nice addition that gets us from point A to point B a little faster. The great thing about Code Map is that you can gain access to the functionality from directly within your code from the context menu. This Code Map functionality is also context specific based on your cursor. You can evaluate and add items such as methods and variables directly to the Code Map window. As you add items the Code Map surface is updated to show your new item plus any relationships and dependencies that have been introduced in your code. Something that is also very nice is that the Code Map surface is interactive and allows you to use the F12 button (Go To Definition) which can help you navigate your code especially is you are adding items that span multiple files or projects. To get started all you have to do is go out and download the September CTP for Visual Studio 2012 located here. Happy Coding!   Code Map Window

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• andEngine dynamic sprites

  - by Blucreation

  Ive just started with andEngine the past week and i only started learning java/android 3 weeks. I can use a for loop to add multiple sprites to the screen but when i try to check collisions on them it only does it to one and not the rest. I want to be able to add a specific number for sprites made from the same texture to the scene, add collision detection to them and also make them slide across the screen (im making a game where you avoid the obstacles). My simple code: private void createobstacle(float pX, float pY) { obstacle = new AnimatedSprite(pX, pY, this.mObjTextureRegion.deepCopy(), getVertexBufferObjectManager()); obstacle.setScale(MathUtils.random(0.5f, 3f)); scene.attachChild(obstacle); } private void createobstacle(int num) { for(int i=0; i<=num; i++ ) { final float xPos = MathUtils.random(30.0f, (CAMERA_WIDTH - 30.0f)); final float yPos = MathUtils.random(30.0f, (CAMERA_HEIGHT - 30.0f)); createobstacle(xPos, yPos); } } Ive read about arrays but i cannot find any tutorials about anything im stuck with. Any help would be great!

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• The MDM Journey: From the Customer Perspective

  - by Mala Narasimharajan

  Master Data Management is more than just about a single version of  the truth or providing a 360 degree view of the customer.  It spans multiple domains ranging from customers to suppliers to products and beyond.  MDM is pivotal to providing a solid customer experience - one that results in repeat business, continued loyalty and last but not least - high customer satisfaction.  Customer experience is not only defined as accurate information about the customer for the enterprise, but also presenting the customer with the right information about products, orders, product availability, etc.   Let's take a look at a couple of customer use cases with Oracle MDM. Below is a picture from a recent customer panel: Oracle MDM is a key platform for increasing upsell/cross-sell opportunities, improve targeting of customers and uncover new sales opportunies, reduce inaccuracies in mailing marketing materials to prospects, as well as to tap into and uncover the full value of a customer across business units more accurately.  A leading investment and private bank leverages Oracle MDM to do a better job of identifying clients, their levels of investment as well as consistently manage them through a series of areas such as credit, risk, new accounts, etc. Ultimately, they are looking to understand client investments and touchpoints across the company's offerings.  Another use case for Oracle MDM is with a major financial and insurance services company with clients worldwide, looking to resolve customer data inaccuracies and client information stored differently across mulitiple systems.  For more information on Oracle Master Data Management, click here.  

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• Error when adding to the domain : the specified server cannot perform the requested operation

  - by James

  When we add computers to the domain in Windows 7, we get the error: Changing the Primary Domain DNS name of this computer to "" failed. The name will remain "domain.com". The error was: The specified server cannot perform the requested operation. This happens on multiple computers and retrying yields the same result. Despite the error, the computer is still able to login to the domain ok. The DCs are windows 2003. Has anyone found a way to get rid of this error? Any help is appreciated.

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• connect to a headless virtualbox instance in Linux?

  - by 130490868091234

  I've started a headless virtualbox instance with this command: VBoxManage startvm "Ensembl67VirtualMachine" --type headless Waiting for VM "Ensembl67VirtualMachine" to power on... VM "Ensembl67VirtualMachine" has been successfully started. It is set up with Remote Desktop Server Port:5555 with Authentication Method: Null and Extended Features: Allow Multiple Connections and it's now running, but I don't know how to connect to it from the same laptop where it's running. I would like to be able to have it running on a terminal. I tried this but nothing happens: rdesktop localhost:5555 ERROR: localhost: unable to connect rdesktop 192.168.1.1:5555 Any ideas?

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• Using MongoDB + Redis + Apache on the same server in production?

  - by Dayson

  I intend to launch my web app using a 8 GB VPS. It uses MongoDB + Redis for storage/caching and Apache + PHP-FPM for serving requests. Could there be any issues with running Mongo + Redis + Apache on the same server? Would it make more sense to setup 2 x 4 GB VPS servers and keep Mongo on one and Redis + Apache on another? Should I just start with one server and worry about scaling horizontally later by delegating the existing server to Mongo in the future (due to its large RAM) and moving the web servers on to multiple smaller VPS'?

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