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• Only upgrading the kernel!

  - by Anwar Shah

  I have seen some people saying to install the kernel of Ubuntu 11.04 (probably 2.6.38..) to use on Ubuntu 10.04 (2.6.35...may be) to only be able to use a Wimax device driver without upgrading their whole Ubuntu System. I find in this method something wrong, but I cannot argue as they are saying that it is OK!!. I tried to insist to upgrade to the latest Ubuntu version with all the software. But I also have the question myself : Does upgrading only the kernel is Okay ? or in other words, Is it OK to have Hardy system with Precise kernel (by adding precise's repository and removing it after upgrade). What are the possible problems ?

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• study materials for Mysql certification?

  - by Andre

  I'm preparing for Mysql certification, nowadays officially titled: Oracle Certified Professional, MySQL 5.0 Developer certification After looking through Mysql forum it looks like most people recommended this book: http://www.amazon.com/MySQL-5-0-Certification-Study-Guide/dp/0672328127/ref=sr_1_1?ie=UTF8&qid=1299972594&sr=8-1 Which as far as I learned - was the official preparation source at the time when Mysql was controlled by Mysql AB and Sun. Now, however - Oracle officially doesn't recommend this book. to be precise - I don't now what they recommend. I could only find this "value package":( http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=532 Can someone who got mysql certification confirm that this book is what they have used? Also -If there is any other moderately priced study materials out there - plz let me know. Thanks P.s. mods - feel free to kick this question into more suitable site.:)

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• How to change ownership of a domain name from "missing" web designer

  - by Stuart

  Hi, We had a website produced a few years ago with a .ORG domain name. The site hadn't grown with our needs, so we've now got a new .co.uk site. Our intention was to transfer the .org address to the new site on completion. Our new site is to go live soon, but the original .ORG site has gone offline (hosting expired I believe as the expiry date for the .ORG is in 2012) and we now discover that the .ORG domain name is registered to the web designer and not to anyone in our organisation. The WHOIS information gives us the technical contact as discountasp.net. What are the steps we can take here? Our primary concern is getting the name servers changed (the current .ORG address goes nowhere) and ultimately we need to transfer ownership? The organisation in question is a community, non-profit organisation, so our pockets are not deep. Thanks in advance for any help. Stuart.

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• Will there be a difference between Unity "Desktop" and Unity "Netbook" interface?

  - by bash

  What has me slightly confused from all the different reports about Unity becoming the default shell in the 11.04 desktop edition: Some claim and this is how most people seem to see it, that what currently is the UNE interface will be taken 1:1 (including any changes made during the Natty cycle) and used as the interface for the desktop version - meaning that the interface will be exactly the same for 11.04 UNE and UDE. Some other reports talk more along the lines a "desktop unity", making it sound, that while both will be using Unity, the Desktop edition will get it's own Unity, tailored specifically towards the Desktop formfactor. So both editions will be using Unity, but with slight differences in the layout or interface. So my question is, will there be any difference between 11.04 Unity "Desktop" and Unity "Netbook" interface?

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• How to load Xmir on Ubuntu Touch Saucy

  - by jaro123

  How to load Xmir on Ubuntu 13.10 Nexus 7 tablet, unity8 + lightdm + mir, unity-system-compositor + Xorg installed. Still getting message above after system reboot in the /var/log/Xorg.0.log : [ 81.542] (II) "glx" will be loaded by default. [ 81.542] (WW) "xmir" is not to be loaded by default. Skipping. [ 81.542] (II) LoadModule: "dri2" Thanks Note: No, this question is not duplicate with How to load Xmir on Ubuntu 13.10 because. My note that this do not work on Ubuntu Touch Saucy + Nexus7 tablet was removed by fossfreedom. I do feel it duplicate also, but this moderator issue. There is no chance to response on equal topic, even when it is not obviously solving the problem. I do consider this confusing and causing incomplete answers.

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• Code Reuse and Abstraction in FP vs OOP

  - by Electric Coffee

  I've been told that code reuse and abstraction in OOP is far more difficult to do than it is in FP, and that all the claims that have been made about Object Orientedness (for lack of a better term) being great at reusing code have been flat out lies So I was wondering if anyone here could tell me why that is, and perhaps show me some code to back up these claims, I'm not saying I don't believe you Functional programmers, it's just that I've been "indoctrinated" to think Object Orientedly, and thus can't (yet) think Functionally enough to see it myself To quote Jimmy Hoffa (from an answer to one of my previous questions): The cake is a lie, code reuse in OO is far more difficult than in FP. For all that OO has claimed code reuse over the years, I have seen it follow through a minimum of times. (feel free to just say I must be doing it wrong, I'm comfortable with how well I write OO code having had to design and maintain OO systems for years, I know the quality of my own results) That quote is the basis of my question, I want to see if there's anything to the claim or not

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• Monitoring Database disk space

  - by Michael Freidgeim

  An article Data files: To Autogrow Or Not To Autogrow? recommends NOT to rely on auto-grow, because it causing delays in unplanned times.We should mtonitor database files(both data and log), and if they close to max capacity, manually increase the size. However it doesn't give references, how to monitor the free space inside databases. I've tried to look how to do it. It can be done manually using   execute sp_spaceused for the database in question or  sp_SOS (can be downloaded from http://searchsqlserver.techtarget.com/tip/Find-size-of-SQL-Server-tables-and-other-objects-with-stored-procedure)Alternatively you can run SQL commands as suggested in Http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=82359 by Michael Valentine Jonesselect [FREE_SPACE_MB] = convert(decimal(12,2),round((a.size-fileproperty(a.name,'SpaceUsed'))/128.000,2)) from dbo.sysfiles aMore useful article Monitor database file sizes with SQL Server Jobs describes how to setup monitoring Finally I found the excellent articleManaging Database Data Usage With Custom Space Alerts, that can be followed even support personnel without much DBA experience.

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• Real-Time Strategy Gameplay

  - by Ahmad Alkhawaja

  I am working on building a HTML5 RTS game, and my current state is that I am building the Campaign mode of the game, and want to define the gameplay (The Scoring, Unit Behaviors/Attributes). I am searching for links/articles/books about how to define the gameplay, for me this: The scoring Figuring out levels of control (in any RTS game, there is units, individuals and squads) Unit action/attributes/properties point timing (how long it will take to play?) Achievements ..etc I want to see how they usually define these areas in RTS games, I expect to see general document discussing this concept that I can use to build the gameplay. Any idea? Is my question clear or I need to provide more details?

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• Comparing a saved movement with other movement with Kinect

  - by Ewerton

  I need to develop an application where a user (physiotherapist) will perform a movement in front of the Kinect, I'll write the data movement in the database and then the patient will try to imitate this motion. The system will calculate the similarity between the movement recorded and executed. My first idea is, during recording (each 5 second, by example), to store the position (x, y, z) of the points and then compare them in the execution time(by patient). I know that this approach is too simple, because I imagine that in people of different sizes the skeleton is recognized differently, so the comparison is not reliable. My question is about the best way to compare a saved motion with a movement executed (on the fly). PS: Sorry by my English.

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• Internationalization of non-english application

  - by Jacket

  I know there are lots of posts for internationalization, but this is something I didn't found while searching. I have a PHP Web application, which is pretty big right now. It's developed actively for 4 years and wasn't built with internationalization in mind. Text is everywhere - in plain HTML, in PHP variables, in echo's, in the DB... Now I'm familiar with the concept of gettext and this is what i plan to use for the internationalization project of the application. However the app is not written in English and here is my question: Should I first translate everything to English while wrapping every string in gettext() function, or I can use my native language as a base? P.S. also any quick suggestions (links maybe) on making my life easier with the whole i18n project will be greatly appreciated!

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• Haskell vs Erlang for web services

  - by Zachary K

  I am looking to start an experimental project using a functional language and am trying to decide beween Erlang and Haskell, and both have some points that I really like. I like Haskell's strong type system and purity. I have a feeling it will make it easier to write really reliable code. And I think that the power of haskell will make some of what I want to do much easier. On the minus side I get the feeling that some of the Frameworks for doing web stuff on Haskell such as Yesod are not as advanced as their Erlang counter parts. I rather like the Erlang approach to threads and to fault tollerence. I have a feeling that the scalability of Erlang could be a major plus. Which leeds to to my question, what has people's exerience been in implementing web application backends in both Haskell and Erlang. Are there packages for Haskell to provide some of the lightweight threads and actors that one has in Erlang?

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• Are CQRS/DDD/Event Sourcing and REST compatible?

  - by Robin Green

  REST seems to promote the idea of a canonical URL for a resource, and PUTing/POSTing back a modified representation of that resource in order to change it. However, with CQRS - Command Query Responsibility Segregation - one can theoretically have a completely different "API" for reading and for writing, which seems to conflict with the REST ideal of one URL for a resource, and no RPC-style "verbs inside the request body". DDD and Event Sourcing sometimes go together with CQRS, which is why I mention them in this question. So, can CQRS be used together with REST? Or is it against the REST way of doing things? What about DDD? And Event Sourcing? Can they be used with REST?

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• Block a website on HTTPS [closed]

  - by momo1729

  I would like to block some websites on their HTTPS version and allow them on HTTP. The main websites involved are Youtube and Google Images/Videos. This is because on the HTTP version, I can enforce the Safesearch filter on those platforms, whereas I cannot on the HTTPS version. For me, this is a very serious issue which spoils many great things about the Safesearch features Google offers. Is there any software/config that can do that? P.S.: I'm not sure this is the right place to post this question in, maybe you could redirect me to some other SE platform?

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• Why is mysql unable to configure?

  - by Tijs

  I try to install mysql-server on my Ubuntu vps server, and it's able to install, but not to configure. If it tries to configure I get this: ...fail! invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.0 (--configure): subprocess post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.0; however: Package mysql-server-5.0 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: mysql-server-5.0 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) Does someone know a solution to this? Btw, my other question can be closed, it's solved, but I cant comment on it anymore.

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• Advice on SCRUM for the solitary developer [closed]

  - by ProfK

  Possible Duplicate: Agile for the Solo Developer I am looking for advice on the SCRUM process for a solitary developer. Most SCRUM resources I see focus on its use in a team environment, hence my question here. I'd like some guidance on structuring and managing my projects for SCRUM, with me as a solitary developer and business owner, but still occasionally including my clients for input and feedback. Areas I'm not clear on include resolving my backlog into 'sprintable' project areas and stories, defining user stories properly with a view to being digested by developer level users, defining feasible sprints for a single developer etc. Essentially I'm looking for advice on moving from using scrum in a team/office environment, with colleagues and project manager, and using chaos/cowboy-coding on my own, to assuming the role of PM myself and adopting scrum for work on my own. Any advice is welcome.

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• What is your favorite Software Engineering methodology?

  - by bmdhacks

  I'm hoping the SO crowd can help me expand my definitions of methodology buzzwords such as SCRUM, Agile, XP, Waterfall, etc, and give some enlightenment as to which approach is the best. If there's some specific book or web page that really captures your philosophy on constructing software with teams of programmers, please indicate it. EDIT: Please don't say, "I use a little of everything." without any more detail. If you haven't read any books or websites that have been helpful, now's your chance to enlighten the world by describing your experience-learned methodology. I would encourage the moderators to up-vote more descriptive answers. It's OK if you haven't read any books and made up your own style from experience, but please describe that style so we can learn from you. Thanks for taking the time to answer my question.

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• Visualize flowchart diagram with multiple end symbols

  - by platzhirsch

  I am looking for a standardize way to visualize the following hierarchical logic: The state of the thread is represented by the answers to the hierarchical set of question You can read this listing like a flowchart, you iterate over the questions decide, go one step deeper and so on. Therefore I thought the best way to visualize it, using a flowchart. The problem is, in this hierarchical set it is possible to end in more than one state and its totally valid. I have never seen a flowchart where you can enter more than one state. Is it still possible and I am missing the right symbol to present this logic or are flowchart not fitting anyway? What other graphical representation could I use, is there something fitting in UML? A non-deterministic state machine seems not to be intuitive enough, transfering it into a deterministic state machine would result in to many states, and so on.

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• Micro QR Code Generator with minimal error correction

  - by Florian Peschka

  I am searching a Micro QR Code Generator that fulfills the following requirements: At least 20 characters encoded Minimal error correction (required to get the 20 characters stuffed in) I already searched google, but it seems all micro qr generators automatically use maximum error correction, which is very unhandy for my task, as we need the 20 characters completety. I can't use standard QR because there are certain requirements that need the code to be smaller than a certain dimension when printed... I hope someone can help me. PS: I'm not sure that this is the right board to post this question on, so feel free to redirect me to a better board if you have an idea. PPS: If nothing can be found and I'm forced to write one on my own: Where can I find detailed information on how to write a QR code generator?

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• Game Center alternatives for non-iOS development

  - by Eat at Joes

  I have completed a game for iOS which integrates GameKit. I am happy with Game Center however my game also has an HTML5 web version and will soo have an Android version. My question is what alternatives do I have for non-iOS platforms but primarily for Android and to a lesser extent a Javascript/Web SDK. I looked at Openfeint a year ago and it seemed to be a good solution back then but am not sure if this is still the case? Note, I have no plans to replace what I already have in my iOS game and I understand the leader boards, users, and achievements won't be shared out of Game Center.

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• Can I use CodeSynthesis XSD (C++/Tree mapping) together with a GPLv3-licensed library?

  - by Erik Sjölund

  Is it possible to write an open source project that uses generated code from CodeSynthesis XSD (C++/Tree) and then link it to a third-party library that is licensed under the GPL version 3? Some background information: CodeSynthesis XSD is licensed under the GPL version 2 but with an extra FLOSS exception (http://www.codesynthesis.com/projects/xsd/FLOSSE). C++ source code generated from CodeSynthesis XSD (C++/Tree) needs to be linked against Xerces (http://xerces.apache.org/xerces-c/) that is licensed under the Apache License 2.0. Update I posted a similar question on the xsd-users mailing list two years ago but I didn't fully understand the answers. In that email thread, I wrote: I think it is the GPL version 3 software that doesn't allow itself be linked to software that can't be "relicensed" to GPL version 3 ( for instance GPL version 2 software ). That would also include XSD as the FLOSS exception doesn't give permission to "relicense" XSD to GPL version 3.

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• Central Exception Handler

  - by J-unior

  Recently I've been thinking about a general ExceptionHandler, that I could initialize once in my app context and inject it everywhere. The idea that it will have quite simple interface with just public void handle(Exception ex), and then according to exception type it should decide what to do, maybe just log it, or show an alert message to the user, or maybe kill the whole app. The question is, what is the prettiest way to write such handler without lots of instanceofs? Unfortunately googling gives me only the default exception handler for RuntimeException that was introduced in Java 5. My first idea is to create an enum, that will have Class field for exception type and it will return the appropriate execution point, for example a concrete exception handler that also implements the interface public void handle(Exception ex), but with the required casting already.

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• SEO consequences for merging country sites in a .com

  - by Pekka

  I am in the process of refactoring a number of rental portals I've built for a company with locations in Austria, Germany, Switzerland, and the Netherlands. Instead of the current setting of each country site running under its own domain name: www.companyname.de www.companyname.ch www.companyname.at I would love to merge them all in this way: www.companyname.com/de www.companyname.com/ch www.companyname.com/at with the country TLDs doing a 301 redirect to the respective .com address. However, I have been repeatedly told not to do this due to likely problems with SEO - the business is very SEO dependent, and being a rental chain, needs to be strong in local results. So the question is: Is there an unavoidable hit in Search Engine Optimization when redirecting to a central .com domain? What measures can be taken to soften the blow? What comes to my mind is explicitly specifying a lang attribute in the html tag. Are there any other ways to specifically point out geographical location for sub-directories?

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• Should I migrate to MVC3?

  - by eestein

  Hi everyone. I have a MVC2 project, my question is: should I migrate to MVC3? Why? I'd like the opinion of some who already migrated, or at least used MVC3 and MVC2. Already read http://weblogs.asp.net/scottgu/archive/2011/01/13/announcing-release-of-asp-net-mvc-3-iis-express-sql-ce-4-web-farm-framework-orchard-webmatrix.aspx and I already know about the described tool for migrating: http://blogs.msdn.com/b/marcinon/archive/2011/01/13/mvc-3-project-upgrade-tool.aspx What I'd really appreciate is your valuable insight. Best regards.

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• Which hosted ecommerce solutions allow customization?

  - by Diego

  Following my previous question, I'm now evaluating the possibility of using a hosted platform for the ecommerce project I have to implement. Before I start "playing" with each one of them, I'd like ask if anybody knows which ones allow a good degree of customization. At the moment I'm looking at BigCommerce, but it seems that customization is limited to templates, while I need additional features which require PHP Coding. Also, I'd need to be able to import additional product data into the system, and I'd need to do this via code; I had a look at some integrations, but they gave me the impression that they all run on the rendered page via JavaScript. For example, if I want to show Facebook Reviews on a product, I'll have to add some JS that will fetch it and show it on the page. This is not optimal, as I must cater for people with JS disabled, therefore I'd need to run my own PHP code. Thanks again for all the opinions.

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• Reflection: Is using reflection still "bad" or "slow"? What has changed with reflection since 2002?

  - by blesh

  I've noticed when dealing with Expressions or Expression Trees I'm using reflection a lot to set and get values in properties and what have you. It has occurred to me that the use of reflection seems to be getting more and more common. Things like DataAnotations for validation, Attribute heavy ORMs, etc. Have me wondering: What has changed since the days years and years ago when I used to be told to avoid reflection if at all possible? So what, if anything has changed? Is it just the speed of the machines? Have there been changes to the framework to speed up reflection? Or has nothing really changed? Is it still "bad" or "slow" to use reflection? EDIT: To clarify my question a little.

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