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• xmpp flow -server, client and library

  - by Him

  My complete requirement is development of a chat engine - including server, clients etc. Currently I am working on things at my desktop only but once done, I have to host it; basically incorporate it with in a site for chatting purpose. So, now my problem is: I am not clear about how the actual data flow is? I have googled and read about xmpp (a book by Peter Andre) also but I am not clear about the flow and what are the actual requirements to do the above mentioned task. What I currently know is: 1) I need a server - so selected ejabberd 2) I need client - still not sure which one to use and one other doubt is how this client thing will work when deployed on some website for chatting purpose. 3) Some library - don't know which one and what is the purpose? Can anyone guide me?

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• A Great Idea I Never Had. Better Elevator Automation, no Buttons in Elevator.

  After my second year at engineering school (Cornell University), I spent the summer working in a dream job as an intern at the world famous Ford Design Center in Dearborn Michigan.  The group I... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• XNA 4.0 Refresh AudioEngine, WaveBank and Others Not Found

  - by Peteyslatts

  I'm going through the Learning XNA 4.0 book, and unfortunately I installed XNA 4.0 refresh. All the code up until now has worked, with the exception of me needing to remove the Framework.Net and Framework.Storage. (As a side question, will this be problematic later?) The problem I'm having now is that in my Game1.cs file, I have imported all of the XNA.Framework libraries, and when I try and create instances of any of the following classes, an error pops up saying VisualStudio can't find them: AudiEngine, WaveBank, SoundBank, and Cue. I have googled around for a while, and the only solution I saw was to import Microsoft.Xna.Framework.Xact, but this doesn't seem to exist for me. Any help is much appreciated, Thanks Peter.

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• Changing Disk Allocation for Ubuntu on Dual-Boot System

  - by OtagoHarbour

  When I first installed Ubuntu, I had a new PC with Windows 7 installed. It was my first installation of Ubuntu so I only allocated 45% of the disk for Ubuntu. Now I find that I have been using Ubuntu exclusively so I would like to change the allocation of the disk so Ubuntu has say 75% of the disk and Win. 7 25%. Is there a way to do this without reformatting the disk. I am using Ubuntu 11.10 with Gnome. Thanks, Peter

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• Ubuntu not booting from USB on laptop (no optical drive)

  - by Jamie

  I'm using a Kingston 16GB USB, with the Unetbootin program. (I've tried both downloading the installation iso manually and adding it, or using the program to download.) I've tried creating the bootable USB on an iMac, the laptop and also a desktop. I've booted into the setup of the laptop and changed the boot order to make sure it boots from that drive first. (There is no optical drive so that isn't a problem.) It's an Acer Aspire AS3810TZ. Upon booting it gives this message: SYSLINUX 4.03 2010-10-22 EDD Copyright (C) 1994-2010 H. Peter Anvin et al I get this no matter how I create the USB, it just sits there. I left the laptop for an hour and it hadn't moved. I've also tried on a different 4GB USB (Generic) and that did the same.

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• Just Finished My Presentation at SLO! (Central Coast Code Camp At Cal Poly)

  I love code camps!  This is my first time to San Luis Obispos Central Coast Code Camp and Im really enjoying it.  It started last night with the presenters dinner at a great local steak... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Upgrading Office 2007 to Office 2010, First Look

  In this post, Im going to simply document the process of updating my MIcrosoft Office 2007.  As almost anyone knows who has not been hiding under a rock, Microsoft Office 2010 has been in the... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Are there similarities between operating system kernels and programming language kernels?

  - by rahmu

  I know very little about Smalltalk but I noticed that there's a frequent mention of the "kernel". Dan Ingalls prime maintainer of several implementations of Smalltalk also worked on a Javascript environment called "Lively Kernel" and in Peter Siebel's book he kept mentionning the "kernel". I cannot help but think that it is no coincidence that the creators of Smalltalk used the name of a (central) part of operating systems to refer to a particular component of their language. Was it because Smalltalk intended to act as an operating system? Was it because theory behind programming languages and operating systems have a lot in common? What is the reason behind the common appelation of the two components?

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• XNA When to call LoadContent

  - by Peteyslatts

  I have an enum in my game that denotes the game state ie MainMenu, InGame, GameOver, Exit and I was wondering if it would be advisable to add a new one in for PrepGame - in which the game creates viewports for however many players there are, creates the battlefield etc. I feel like this is a good idea except for one thing: should I make a call back to LoadContent() in this state? I could just put a switch statement in the LoadContent for my currentGameState. If it equals PrepGame load things like the skybox, ship models, texures, HUD graphics etc. Or is it a good idea to create an Asset Manager class in the first call to LoadContent() and load everything then. I feel like both approaches have different benefits: faster, but more load times vs slower initial load time, but then all my objects are referencing the same variables so I only have to load each on once. Any help is greatly appreciated. Thanks, Peter

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• Can't install ubuntu 12.04 64 bit and 32 bit

  - by Mark

  I downloaded The Ubuntu 12.04 64 bit, i burned it from a cd and when I tried to install it i only and get a black screen and saying Peter Arvin et al could not find kermel image I thought there's a problem with the file so i downloaded it again and install it then i always get the same message. I tried also 32 bit and i always get the same error. I tried also installing it from a usb and i always get the same. So i just downloaded the WUBI and works so fine to my computer. I'm using Sony Vaio E Series with a 32 bit system and 500 GB hard Disk Drive.

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• WCF Firestarter Online Saturday 6/19/2010

  This weekend is the WCF Firestarter in New York City.  Registration to attend in person is SOLD OUT and were looking forward to a full house in the Big Apple on Saturday!  You can see the event agenda at Peter Laudatis blog, as well as at MSDN Events.  Firestarter events have been quite popular wherever Microsoft has hosted them around the country. Are you NOT in New York this weekend and feeling a little left out?  Dont worry we know there are plenty of folks who dont live...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Using Visual Studio 2010s Debugger PIN Feature

  One of the very cool new features in Visual Studio 2010 is the ability to Pin a variable you are watching, right in the place you want to see it.  Its always been a hassle to have to add a... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• ReSharper 5.0 Adds New Add Parameter Refactoring

  In this post, Ill show a simple example of how when you add a parameter to C# method, ReSharper gives you a simple prompting to ask if you want to add a parameter to your method, or create an... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Effective C# Second Edition Book Review

  In Effective C#, Bill has identified 50 different areas in which you can improve your usage of the C# language, and this includes new features of C# 4.0. This is not a language tutorial book - you can get that from other books. What it does instead is to focus on important specific areas and provide solid, concrete concepts and techniques to help you improve your coding style and technique.  read moreBy Peter BrombergDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• This Is My New Post

    This is an article line items 1111 2222 3333     my pdf This is the text This is the end. This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Using Visual Studio 2010s Debugger PIN Feature

  One of the very cool new features in Visual Studio 2010 is the ability to Pin a variable you are watching, right in the place you want to see it.  Its always been a hassle to have to add a... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Enterprise 2.0 - How to

  - by me

  Today I had a very interesting lecture at the  Fachhochschule Nordostschweiz "Hochschule für Wirtschaft" around How to design & implement an Enterprise 2. 0 solution. We had a great (and sometime pretty skeptical)  discussion around Social Value Models. The presentation can be found below. Enterprise 2.0 - How to View more presentations from Peter Reiser Feedback are always welcome.

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• My Habitat For Humanity Day Before TechEd 2010 in New Orleans

  Yesterday, I spent the day building what I think are stantions (piles of blocks held together by mortar) to hold a house 5 feet above the ground.  Through twitter, I saw a bunch of people from... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Scripted Motion Paths (?) (XNA)

  - by Peteyslatts

  Ok, so the title isn't the greatest because this is a lot more general. Say I want to have the player be able to hit A and have their ship model roll to the right, and shift to the right of the screen, while the camera stays centered. Would I do that through programming (ie. set waypoints for the model and keep the camera focus still) or do it through animation ( so the ship model actually rolls and moves right, and just play those frames)(I actually don't know how to do this kind of 3D animation yet, haven't looked into it. Adding it to my To Do List) This is a really vague question I know, I'll try and answer any questions. Thanks, Peter

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• Server Security

  - by mahatmanich

  I want to run my own root server (directly accessible from the web without a hardware firewall) with debian lenny, apache2, php5, mysql, postfix MTA, sftp (based on ssh) and maybe dns server. What measures/software would you recomend, and why, to secure this server down and minimalize the attack vector? Webapplications aside ... This is what I have so far: iptables (for gen. packet filtering) fail2ban (brute force attack defense) ssh (chang default, port disable root access) modsecurity - is really clumsy and a pain (any alternative here?) ?Sudo why should I use it? what is the advantage to normal user handling thinking about greensql for mysql www.greensql.net is tripwire worth looking at? snort? What am I missing? What is hot and what is not? Best practices? I like "KISS" - Keep it simple secure, I know it would be nice! Thanks in advance ...

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• Can not change UILabel text color

  - by HelloWorld

  Hi, all I want to chang UILabel text color,but can't change it's color,This is my code. UILabel *categoryTitle = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 46, 16)]; categoryTitle.text = @"abc"; categoryTitle.backgroundColor = [UIColor clearColor]; categoryTitle.font = [UIFont systemFontOfSize:12]; categoryTitle.textAlignment = UITextAlignmentCenter; categoryTitle.adjustsFontSizeToFitWidth = YES; categoryTitle.textColor = [UIColor colorWithRed:188 green:149 blue:88 alpha:1.0]; [self.view addSubview:categoryTitle]; [categoryTitle release]; The label text color is white ,not my custome color. Thank for any help.

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• change a value xml in php but false with a node name id-7

  - by Nataly Nguyen

  I want to change a xml, but fails with this code. I think mistake with name of variable (ID-1) in php. chang.php <?php include 'example.php'; $xml = new SimpleXMLElement($xmlstr); $xml->ID-1 = '8'; $xml->name = 'Big Cliff'; $xml->asXML('test2.xml'); echo $xml->asXML(); ?> example.php <?php $xmlstr = <<<XML <?xml version="1.0" encoding="utf-8"?> <film> <ID-1>29</ID-1> <name>adf</name> </film> XML; ?>

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• jqGrid tableToGrid "options" parameter

  - by Jimbo

  Basics Hi all, I have see the tableToGrid method (by Peter Romianowski) defined as tableToGrid(selector, options) on the jqGrid wiki, but cannot find anywhere that has documentation of the options Does anyone know about these or where to find them? More What Im actually trying to do is encase the resulting jqGrid in a form, which will submit the checkbox values that are in a column of the table. My problem is that the tableToGrid method appears to be removing the name property from the checkbox elements and hence they are not being submitted with the form post.

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• Which guru would you interview in a virtual bonus chapter of "coders at work" book?

  - by systempuntoout

  I've really enjoyed reading Peter Siebel's Coders at work book. At the end of the last chapter (Don Knuth), i tought that the interviews selection was good but a little bit too old-school oriented. So, in your virtual 16th chapter, which guru would you interview? In my 16th chapter, i would be amazed to read an interview of John Carmack.

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• sorting two tables (full join)

  - by Ruslan

  i'm joining tables like: select * from tableA a full join tableB b on a.id = b.id But the output should be: row without null fields row with null fields in tableB row with null fields in tableA Like: a.id a.name b.id b.name 5 Peter 5 Jones 2 Steven 2 Pareker 6 Paul null null 4 Ivan null null null null 1 Smith null null 3 Parker

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