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  • New Book: "Systems Performance: Enterprise and the Cloud"

    - by uwes
    Brendan Gregg, former Solaris kernel engineer at Sun published his new book "Systems Performance: Enterprise and the Cloud" in October. The book is a modern, very comprehensive guide to general system performance principles and practices, as well as a highly detailed reference for specific UNIX and Linux observability tools used to examine and diagnose operating system behaviour. Read a more detailed abstract and review on Harry J Foxwell's Blog entry "Brendan Gregg's "Systems Performance: Enterprise and the Cloud"

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  • What's the demonym for people who use StackExchange or StackOverflow?

    - by YatharthROCK
    What's the demonym† for people who use StackExchange and it's subsidaries? There's isn't a documented asnwer anywhere, so I'd like to know the general consensus. Suggestions and ideas too are welcome.‡ Give one answer per site:- Stack Exchange Stack Overflow Super User Server Fault and any other site you think has one unqiue enough :) † Demonymns for or the collective noun used to refer to the people ‡ I asked it on ]English.SE]2 too. Should I have done that? Would Meta.SO have been more appropriate?

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  • Oracle PartnerNetwork Exchange @ OPENWORLD 2012 - San Francisco

    - by Cinzia Mascanzoni
    Updates for you and to share with your partners: • OPN Exchange will kick off on Sunday, September 30th with Oracle Partner Keynote at 1pm PT and General Sessions at 3:30pm PT. • OPN Exchange AfterDark Reception featuring Macy Gray will be held at Metreon’s City View Terrace on Sunday, September 30th @ 7:30pm PT • Pre-enroll to attend 40+ OPN Exchange Sessions and Test Fest exams via Schedule Builder.

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  • Supercharge your CRM solution with Oracle Policy Automation

    Tune into this conversation with Davin Fifield, VP, Product Development for Oracle Policy Automation to learn how to rapidly deliver customer self-service for product selection, significantly lower training costs for rolling out new call center processes, and in general dramatically improve business agility, consistency and transparency of decision making within and beyond your CRM solution of choice.

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  • DAX editor for SQL Server

    - by Davide Mauri
    One of the major criticism to DAX is the lack of a decent editor and more in general of a dedicated IDE, like the one we have for T-SQL or MDX. Well, this is no more true. On Codeplex a very interesting an promising Visual Studio 2010 extension has been released by the beginning of November 2011: http://daxeditor.codeplex.com/ Intellisense, Syntax Highlighting and all the typical features offered by Visual Studio are available also for DAX. Right now you have to download the source code and compile it, and that’s it!

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  • Terrain square loading

    - by AndroidXTr3meN
    Games like Skyrim, Morrowind, and more are using quads or square to divide the terrain if im correct. The player is always at #5 1 | 2 | 3 4 | 5 | 6 7 | 8 | 9 So whenever you cross the border you unload and load the new "areas" But if the user goes just over the edge and then the second after goes back previous area a lot of unnecessary loading and unloading is done. Is there a general approach to this because I dont think games like skyrim have this issue? Cheers!

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  • Digital "Post It" notes for organizing content of sites/pages

    - by Alex
    We're restructuring our old intranet into a new one and are going through each site to find content and use our new standard structure/look-and-feel. Do you recommend a tool where you can do "digital Post-It" notes? It would provide a way to type some items on a "card" and be able to move it around and organize it quickly. Also, if you know of tools in general for this kind of task, please advise. Thank you.

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  • Oracle OpenLux Seminar on December 8, 2011 at Espace Namur in Hamm

    - by Yves Moriceau
    You are kindly invited to experience the Oracle vision on the future at the Oracle OpenLux Seminar on December 8th 2011, from 9:00 to 14:00 at the Artisan Confiseur Namur in Hamm. If you want to have more details on this seminar and you wish to register please folow the link: http://www.artdcom.com/oracle/general/2011-openlux-seminar-details.html We look forward to meeting you on December 8th. Oracle Luxembourg

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  • Flash drive error

    - by John
    when I try to install Ubuntu from flash drive, and when done from CD. I click install and then the screen goes black. Any idea how I can fix this issue? I really would like to know how I'm suppose to fix this. if anyone knows the answer to this please reply ASAP I'm very interested in getting to learn Ubuntu :) I think it would be a fun process and windows 8 is a horrible system in general. Thanks for your time

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  • Open Dialog, created with quickly does not work

    - by Marian Lux
    I tried to open a dialog like David Planella describs here (and quickly help add): Open Custom Dialog Windows (PyGTK + Quickly) But this don't works for me. I always get the same Error-Message if I open the creadted Dialog: AttributeError: 'module' object has no attribute 'NewDialogNameDialog' (Note: My Dialog-Name is replaced with "NewDialogNameDialog" to be more general.) I tried to test a tutorial for the Ubuntu app showdown to learn how to use quickly and python. I can also add the whole source-code if you wish.

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  • self referencing tables, good or bad?

    - by NimChimpsky
    Representing geographical locations within an application, the design of the underlying data model suggests two clear options (or maybe more?). One table with a self referencing parent_id column uk - london (london parent id = UK id) or two tables, with a one to many relationship using a foreign key. My preference is for one self-refercing table as it easily allows to extend into as many sub regions as required. IN general do people veer away from self referencing tables, or are they A-OK ?

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  • Recommended online training sites on software development

    - by liortal
    I am looking for an online training site that provides courses on software development topics. Subjects that are needed for my work are .NET, general object oriented principles, design patterns, unit testing, continuous integration but not limited to these in particular. I have tried to use Pluralsight which was nice, however i am not sure the style of videos only is sufficient (for my at least). Are there any other training companies that provide online courses in other formats that you found useful (regarding .NET but not limited only to it). Thanks

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  • Using Google Webmaster & Analytics, what data to look at to improve website performance?

    - by Rob
    Using data from Google Analytics and Webmaster tools, what data should I be looking at to improve my websites performance? I want to improve the SEO, usability and just general performance of my website. EDIT: It's a portfolio website that we've done the initial SEO for, also optimised all images etc and made the site as fast as possible. What kind of things should I be looking out for in the analytics and webmaster data to improve performance for both the SEO and each individual page.

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  • What is UEFI and Secure Boot? How do they affect Ubuntu?

    - by Oxwivi
    Discussions and reports about UEFI and Secure Boot has cropped up in many Linux circles, but can anyone summarize it's impacts on Ubuntu and how it affects the general users? I know that UEFI and Secure Boot are separate (not interchangeable), with Secure Boot being a part of the Unified Extensible Firmware Interface BIOS specification. PS I do know how it affects Ubuntu, this question is for the benefit of public knowledge.

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  • Dominate Google Rankings With Affordable SEO Instruction

    Dominating Google the new SEO step by step playbook from Mark Dulisse and Chris Freville will be officially launched on June 15 2010. SEO (Search Engine Optimisation) is a constantly shifting landscape and while many instruction manuals and membership sites exist, most give broad guidelines and are either helpful in a general broad sense or simply plain wrong and liable to land you in hot water with Google.

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  • What Forum Software should I use?

    - by Christofian
    This is a general, community wiki catch-all question to address "I need a forum script that does x, y, and z..." questions. If your question was closed as a duplicate of this question and you feel that the information provided here does not provide a sufficient answer, please open a discussion on Pro Webmasters Meta. I have a list of features that I want for my website's forum script: where can I find a (free or paid) script that includes all of them?

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  • Building a Social Website

    A social website built for internet marketing purposes is often categorized under "niche marketing" because it is difficult to construct one that can encompass the general public. Building a social website of that magnitude is a matter that requires resources not readily available to everyone. It is therefore assumed that any plans of building a social web network will be relatively small and confined to a certain niche in the global demography.

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  • It's possible to fulfill the social necessity of a human being through a social game in 3D like IMVU?

    - by Totty
    (I'm not advertising nor promoting this game, as it's just an example of my experience and I would like to have your opinion about the matter if possible) I've been started researching "things" about games and I've decided to begin to play IMVU as a friend of mine said it's cool. At first it seemed just another 3d social game, not so cool.. But I've "tried to like" and after 1 day I can say I'm addicted to it! Yes; I will explain better: About the game: You can go in chat-rooms, move to positions. Some positions are like sitting in a sofa, floor, dancing alone or with a partner, kissing and more in this way. In the free version of the game there is no nudity. You can even listen to music, view youtube... The 3d graphics are quite low end, so it's not as real as the paid PC games of today. About my experience: At first I was going with my friend in chat-rooms, they seemed very nice. There were people talking about general stuff, quite like in a real life. Well, I begin to know some girls (yes, virtual girls commanded by a real girl, I hope!). Things happened: Some girls are just crazy, not like in real life, they make out in before even talking; Other girls you can speak a little bit, then they add you to their friend-list. Sometimes they invite to their virtual places. Some girls have really IMVU boyfriends only (but not in reality) and most of them don't even make up in the game, so it's really a level of commitment involved here! But from what my friend told they last for him, at least, about 3 days... Some others have real and IMVU boyfriends that are the same. Until now I haven't find a girl with different boyfriend in the IMVU and reality. Nor multiple boyfriends. There are rooms where the same people find each selves every day and speak about general stuff, relationships and so on... They are nice with you, they "feel" you and show careness. This is what amazes me, they treat you like a real human being and as being their friend in the real world. (of course it's not always like this) There are jealous girls too and competitiveness between females lol, I know you loled! This is kind of social. So today I closed my door in my room and I've played it all day long and guess what, I didn't feel a need to stay with a real person at all. Normally, If I would stay a full day alone I would get quite crazy... So the question is: It's just me that seemed to be able to fulfill my social needs or there is something more? thanks for your precious time for reading my full question,

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  • MySQL et MariaDB : alerte à une faille de sécurité "tragiquement comique", 50 % des serveurs seraient touchés

    MySQL et MariaDB : alerte à une faille de sécurité "tragiquement comique" 50 % des serveurs seraient touchés MySQL et son fork MariaDB souffrent d'une grave vulnérabilité à une attaque de force brute, prodigieusement facile à exploiter. En peu de secondes, un pirate peut contourner l'authentification aux serveurs de base de données pour peu qu'il dispose d'un nom d'utilisateur correct (« root » est en général toujours présent et actif avec un maximum de prévilèges). Il suffit au pira...

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  • PowerPivot, Stocks Exchange and the Moving Average

    - by AlbertoFerrari
    In this post I want to analyze a data model that perform some basic computations over stocks and uses one of the most commonly needed formula there (and in many other business scenarios): a moving average over a specified period in time. Moving averages can be very easily modeled in PowerPivot, but there is the need for some care and, in this post, I try to provide a solid background on how to compute moving averages. In general, a moving average over period T1..T2 is the average of all the values...(read more)

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  • SEO Experts - Where?

    With so many options to choose from in the world of internet marketing services, one may find it very difficult when choosing one form of SEO expert over another. However, there are many general rules to use when looking for some sort of internet marketing services or SEO expert. First and fore most, make sure that the company you will potentially choose is using all of the up to date information and practices.

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  • Microsoft Seeks Beta Testers

    Microsoft recently announced that it was soliciting the help of Beta testers for the upcoming version of its Security Essentials program. Although the slots are limited for the testing, Microsoft did say that it plans to release Microsoft Security Essentials Beta to the general public by the end of this year. Becoming a part of the testing process not only allows you to see what Microsoft has up its sleeve in terms of enhanced security and performance, but you can also voice your opinions on the product to give the company suggestions on improvements to include prior to the final version's r...

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  • Someone is *Wrong* On The Internet

    <b>Linux Journal:</b> "This is a blog post about blog post comments. Not just comments on Linux Journal, but blog post comments in general, especially about blogs that support 'Anonymouse' contributions."

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  • Application Logging needs work

    Application Logging Application logging is the act of logging events that occur within an application much like how a court report documents what happens in court case. Application logs can be useful for several reasons, but the most common use for logs is to recreate steps to find the root cause of applications errors. Other uses can include the detection of Fraud, verification of user activity, or provide audits on user/data interactions. “Logs can contain different kinds of data. The selection of the data used is normally affected by the motivation leading to the logging. “ (OWASP, 2009) OWASP also stats that logging include applicable debugging information like the event date time, responsible process, and a description of the event. “There are many reasons why a logging system is a necessary part of delivering a distributed application. One of the most important is the ability to track exactly how many users are using the application during different time periods.” (Hatton, 2000) Hatton also states that application logging helps system designers determine whether parts of an application aren't being used as designed. He implies that low usage can be used to identify if users like or do not like aspects of a system based on user usage of the application. This enables application designers to extract why users don't like aspects of an application so that changes can be made to increase its usefulness and effectiveness. “Logging memory usage can also assist you in tuning up the internals of your application. If you're experiencing a randomly occurring problem, being able to match activities performed with the memory status at the time may enable you to discover the cause of the problem. It also gives you a good indication of the health of the distributed server machine at the time any activity is performed. “ (Hatton, 2000) Commonly Logged Application Events (Defined by OWASP) Access of Data Creation of Data Modification of Data in any form Administrative Functions  Configuration Changes Debugging Information(Application Events)  Authorization Attempts  Data Deletion Network Communication  Authentication Events  Errors/Exceptions Application Error Logging The functionality associated with application error logging is actually the combination of proper error handling and applications logging.  If we look back at Figure 4 and Figure 5, these code examples allow developers to handle various types of errors that occur within the life cycle of an application’s execution. Application logging can be applied within the Catch section of the TryCatch statement allowing for the errors to be logged when they occur. By placing the logging within the Catch section specific error details can be accessed that help identify the source of the error, the path to the error, what caused the error and definition of the error that occurred. This can then be logged and reviewed at a later date in order recreate the error that was received based data found in the application log. By allowing applications to log errors developers IT staff can use them to recreate errors that are encountered by end-users or other dependent systems.

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