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  • The Uganda .NET Usergroup meeting for January 2011 - a look back.

    - by Malisa L. Ncube
    We had a very interesting meeting on Friday 28th last week. We had 10 attendees and two speakers. The first topic presented was Cloud Computing, presented by Allan Rwakatungu @arwakatungu who works with MTN Uganda. He gave a very brilliant outline of how Cloud computing and service oriented applications had begun changing the platform for operating business and the costs it saves because of scalability and elasticity. He went on to demonstrate the steps you would take if you are beginning a new Windows Azure project. He explained the history and evolution of the Windows Azure, SQL Azure and cloud services offered by Amazon and google.com. The attendees had many questions to ask (obviously), but they were all answered very well. We once again thank Allan, for taking time to prepare the presentation and demonstrating for us. We recorded a video on the entire presentation and after doing some editing we will publish it. One wish which was echoed by most members was that Microsoft should open the cloud services and development for Africa. Microsoft currently does not even have servers here in Africa and so far, that does not put African developers in the same platform as other developers in other continents. Now is the time considering the improvements in network speeds and joining of the Seacom network and broadband.   I presented on Parallelism and Multithreading using .NET 4.0, I also gave some details on the language changes in C# 5.0 and the async keyword and the TaskEx class. I explained the Task, Scheduling of parallel tasks and demonstrated problems that may arise from using parallelism inappropriately. I also demonstrated the performance improvements that may be achieved by taking advantage of multi-core processors. You may download the presentation on Parallelism and Multi-threading from here. The resolution of the meeting was that we should meet more than once a month and begin other activities which should be more fun. e.g. Geek Dinner, Geek Beer or CodeCamp. Based on that we all agreed we shall have a mid-month meeting starting from February. Cheers folks! del.icio.us Tags: .net,usergroup,cloud computing,parallelism,multi-threading

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  • What do you code first to learn a new language, library, or framework?

    - by Griffin
    Every language, framework, and library has its own syntax, quirks, and pitfalls. What Program, Game, etc. do you code in order to learn these unique characteristics? How do you decide on what previous programming experience is applicable? I'd imagine that the task would have to be complicated enough to force you to use applicable programming techniques and idioms, but simple enough that it wouldn't take a ton of time.

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  • What NAS setup for two-way syncing over the internet?

    - by Jamse
    I have family living a few hours away and have a lot of files that I would like to share - especially lots of folders of digital photos, but also documents etc. - partially so they can see them, partially so I can have access when I visit them and partially for backup / redundancy purposes. My current hard drives on my main machine are getting pretty full anyway, and I have a MythTV box where my music is currently stored, so I was thinking of getting a NAS anyway. And at the other end my family have a few computers, so they would probably benefit from a NAS too. My general idea (though I'm willing to shift on this if there are any bright ideas about other ways of achieving my objectives) is to get a matching pair of NASs and have them sync over the internet. (To cut down on bandwidth use I would get them in sync locally to start with.) Having read around as best I can it seems that syncing over the internet is generally only a feature on quite high end units. However, I have seen that QNAP seem to feature this on their TS-110 and TS-210 units, which might work (they call it "remote replication"). They seem pretty reasonably priced for what they are, but of course with buying 2 of them and then adding the drives (say 1TB or 2TB each) I'd be looking at about £400 total. So, I'm looking for recommendations really. I don't want to spend more than the QNAPs would cost me, but any other ideas would be most appreciated. I am comfortable with technology and tinkering around, but I don't have as much time for that as I would like, so I guess I would favour solutions that require less tinkering rather than more (even though that's less fun!). Any thoughts would be welcome, as would any comments from people who have used the QNAP boxes for this. Thanks in advance. Some specifications: Two-way syncing. Changes made at either end should be synced to the other. There shouldn't be one unit that is effectively a read-only mirror of the other. Not real time. The syncing doesn't need to be real time - if it updated, say, daily overnight that would be fine. Set and forget. I would prefer minimal user interaction once set up - it would be great if syncs were scheduled and automatic. OS independence. I am running Windows XP plus an Ubuntu-based MythTV box. At the other end there are Windows 7 and Windows XP machines, plus a networked TV set top box which I think can play files off the network. Machine independence. I would favour a system that is self-contained, i.e. not reliant on any particular PC being switched on. If the system had enough else going for it I could perhaps work around it at this end, where I only have one PC that's used as such, but it would be harder at the other where there are at least two PCs that might be accessing the files. Notifications. I guess things like getting an email notification if the syncing fell over for any reason would be useful, though it's not a deal breaker. Update I've been digging some more and it looks like QNAP's Remote Replication function is actually just Rsync, so only really suitable for one-way syncing. I've posted on their forum to double check, but I think that's the case. In which case, I think the focus of my question is now either: do any reasonably-priced NASs support bidirectional syncing over the internet?, or has anyone had any luck installing onto NASs for this purpose? (Also, updated question to clarify that I'm after two-way syncing.)

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  • VCPASS: Extend your T-SQL Scripting with PowerShell

    - by dbaduck
    Date: November 16, 2011 Extend your T-SQL Scripting with PowerShell Description: I'll be covering some of the different way we can use PowerShell to extend our T-SQL scripting. This session will include a mix of using SMO, .NET classes, and SQLPS to help you understand the power for new scripting technology. At the end we’ll be creating a solution that put together all this techniques. Date/Time: 11/16/2011 1:00 PM - 2:00 PM EST Registration Link: https://www.livemeeting.com/lrs/8000181573/Registration.aspx?pageName=7wzjxg98v9160twm...(read more)

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  • Domain Renewal Explained

    Did you know that you never really ?own? a domain name perpetually? Well, it?s true. What you do is rent the ownership of a domain name for a fixed period of time ranging from 1 year to 10 years. Onc... [Author: Tanya Smith - Computers and Internet - April 03, 2010]

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  • How do I commit changes to a text file on button press?

    - by boywithaxe
    I've written a small app that creates a GUI for setting up uShare. Currently it depends heavily on the 'w' (write) and 'a' (append) functions to generate/edit ushare.conf file. But I've been trying to find a way for the app to store all the changes until a save button is pressed, and only then committing them to the actual file. I think that would be the best way of getting around having the user press enter every time they change any field (and indeed allow for GtkCheckButton).

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  • Quote of the day – on when NOT to say something

    - by BuckWoody
    I think many of us can say something right at the right time. But there’s a deeper skill: “Remember not only to say the right thing in the right place, but far more difficult still, to leave unsaid the wrong thing at the tempting moment.” - Benjamin Franklin Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • how to dbkg-preconfigure login manager

    - by Josh
    I've written a script that installs several desktops with a menu loop. I have also redirecteed the output to /dev/null, Now every Time when it comes to dpk login manager selection the script doesn't continue. What could I du to preconfigure the login mangager that should be choosen. How do the lines for dpkg preconfigure look for lightdm gdm Kdm mdm debconf-set-selections <<< ' ' would be grate, too. Thank you folks!

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  • Unable to install any linux based os in my HP PAVILION DV6 notebook

    - by Nawin SS
    I tried to install ubuntu 11.04 and 12.04 both with wubi and with dvd.With wubi even when the installation is successfull the os wont boot after some time.and with dvd it shows error "0x0009"and the intallation stops. The same is the case with any linux based os i try to install.With fedora the installation stops after the display,"Detecting hard drive...".Are there any settings that must be changed in my system. Please instruct me how to overcome this obstacle.I am stuck..!

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  • Control Your SEO Efforts With a Link Tracker

    Link exchanges are great way to achieve visibility for your website but they can also be a monumental waste of time, effort, and money if you are not taking advantage of link tracker technology. For webmasters not familiar with exchanging links, they are a basic technique whereby you display another website's link on your website in return for your link on their site.

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  • If you tried to use Ubuntu then went back to your old OS, why did you do so?

    - by Michael Forrest
    Over the past few years I've been dipping in and out of Ubuntu every so often because I believe in the idea. However, there have always been factors that have made me give up and return to either Windows or OS X, intending to come back when Ubuntu has had a bit more time to 'bake'. Anecdotally, if you have had similar experiences, why did you go back? If we can address these sorts of issues, maybe Ubuntu can get over this hump. I mean 'chasm'.

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  • Open Source PHP based secure file download script?

    - by SiddharthP
    Basically I need a self hosted solution where I as the admin can create client areas (which can be simple folders) where I upload files and secure them with username / pass. A client page will then be automatically generated which the client can access the username / pass and download the files. It's relatively simple script but i'm having a hard time finding open source solutions which accomplish what i need. Any help would be appreciated.

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  • why my ubuntu always runs on low-grahphic mode?

    - by sam
    My graphic card is NVIDIA GTX 460, and ubuntu is ubuntu 10.04. I have reinstalled graphic driver for two times,but my ubuntu shows that it runs on low-graphic mode after a period of time of driver installation process. The following is the information the computer shows. http://imgur.com/GkZUz Also, when I try to change the graphic setting of NVIDIA on ubuntu, the following information shows. http://imgur.com/SVhCc How to fix it?Thank you!!

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  • From the Tips Box: iPhone Sleep Monitors, Testing IR Remotes with a Camera, and Glowing Easter Eggs Redux

    - by Jason Fitzpatrick
    Once a week we round up some great reader tips and share them with everyone. This week we’re looking at using your iPhone as a sleep monitor that wakes you at an optimum time, how to test your remote with a digital camera, and a clever way to craft glowing Easter eggs. How to Own Your Own Website (Even If You Can’t Build One) Pt 3 How to Sync Your Media Across Your Entire House with XBMC How to Own Your Own Website (Even If You Can’t Build One) Pt 2

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  • Search Engine Optimization Success - The Best Way to Turn Your SEO Visitors Into Paying Customers

    One of the things that you have to make sure you do if you are trying to get more visitors to your site from the search engines is to make sure you can get them to buy from you. If you can't get your SEO visitors to buy from you, you'll end up wasting all your time and never make any money in your niche market. In this article I want to show you how you can turn your visitors into paying customers online.

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  • Google I/O 2012 - Writing Efficient Drive Apps for Android

    Google I/O 2012 - Writing Efficient Drive Apps for Android Alain Vongsouvanh, Claudio Cherubino This session goes through how to write Drive apps that synchronize files with Android devices. We'll also go into how to open files on Android devices, or create new files from this environment. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 234 5 ratings Time: 52:45 More in Science & Technology

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  • OK, How Does SEO Work?

    SEO, which is short for Search Engine Optimisation, works by making your site "friendlier" for search engines such as Google to list in their index. No-one knows for sure just how many pages Google has indexed. It gave up posting that figure some time ago as it's irrelevant to the average internet surfer - we only want relevant results when we're searching and don't really care about the literally millions of pages that were discarded on the way.

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  • Know More About SEO Software

    SEO optimization is very essential to people who are looking for the current means to enhance the popularity of their sites on the internet. The SEO tool is one that delivers the success of your site and at the same time ensures that you get targeted traffic with ease. There is immense competition on the internet and it is for this reason why you should go in for SEO optimization so that you can have a winning edge over the other players in the online market.

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  • Cone of Uncertainty in classic and agile projects

    - by DigiMortal
    David Starr from Scrum.org made interesting session in TechEd Europe 2012 - Implementing Scrum Using Team Foundation Server 2012. One of interesting things for me was how Cone of Uncertainty looks like in agile projects (or how agile methodologies distort the cone we know from waterfall projects). This posting illustrates two cones – one for waterfall and one for agile world. Cone of Uncertainty Cone of Uncertainty was introduced to software development community by Steve McConnell and it visualizes how accurate are our estimates over project timeline. Here is the Cone of Uncertainty when we deal with waterfall and Big Design Up-Front (BDUF). Cone of Uncertainty. Taken from MSDN Library page Estimating. The closer we are to project end the more accurate are our estimates. When project ends we know exactly how much every task took time. As we can see then cone is wide when we usually have to give our estimates – it happens somewhere between Initial Project Concept and Requirements Complete. Don’t ask me why Initial Project Concept is the stage where some companies give their best estimates – they just do it every time and doesn’t learn a thing later. This cone is inevitable for software development and agile methodologies that try to make software world better are also able to change the cone. Cone of Uncertainty in agile projects Agile methodologies usually try to avoid BDUF, waterfalls and other things that make all our mistakes highly expensive. Of course, we are not the only ones who make mistakes – don’t also forget our dear customers. Agile methodologies take development as creational work and focus on making it better. One main trick is to focus on small and short iterations. What it means? We are estimating functionalities that are easier for us to understand and implement. Therefore our estimates are more accurate. As we move from few big iterations to many small iterations we also distort and slice Cone of Uncertainty. This is how cone looks when agile methodologies are used. Cone of Uncertainty in agile projects. We have more cones to live with but they are way smaller. I don’t have any numbers to put here because I found any but still this “chart” should give you the point: more smaller iterations cause more but way smaller cones of uncertainty. We can handle these small uncertainties because steps we take to complete small tasks are more predictable and doesn’t grow very often above our heads. One more note. Consider that both of charts given in this posting describe exactly the same phase of same project – just uncertainties are different.

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  • Tips for / pitfalls of working on an outsourced project

    - by Arkaaito
    My company has retained an outside firm to develop an iPhone app for us. As the only internal developer with any knowledge of Objective-C, I've been assigned to develop the relevant APIs on our site, but also to do anything I can to make sure the whole thing comes together on time. Any suggestions for things I should do or things I should watch out for, particularly from those who've been down this road before?

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  • Conditionally Auto-Executing af:query Search Form Based on User Input

    - by steve.muench
    Due to extreme lack of time due to other work priorities -- working hard on some interesting new ADF features for a future major release -- 2010 has not been a banner year for my production of samples to post to my blog, but to show my heart is in the right place I wanted to close out the year by posting example# 160: 160. Conditionally Auto-Executing af:query Search Form Based on User Input Enjoy. Happy New Year.

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  • What to do when you inherit an unmaintainable codebase?

    - by GordonM
    I'm currently working at a company with 2 other PHP developers aside from me, and 1 junior developer. The senior developer who originally built the system we're all working on has resigned and will only be here for a matter of weeks. The other developer, who is the only other guy who knows anything about the system, is unhappy here and is looking for a new job. I'm very real danger of being left behind as the only experienced developer on this codebase. Since I've joined this company I've tried to push for better coding standards, project documentation, etc and I do think I've made some headway, but the vast majority of the code is simply unmaintainable and uncommented. A lot of this has to do with the need to get things done fast at points in the project before I joined, but now the technical debt is enormous, even with the two developers who do understand the system on board. Without them, it will simply be impossible to do anything with it. The senior developer is working on trying to at least comment all his code before he leaves but I think the codebase is simply too vast to properly document in the remaining time. Besides, when he does comment it still doesn't make things as clear as it could. If the system was better organized and documented I could probably start refactoring it incrementally, but the whole thing is so tightly coupled that it's very difficult to make any changes in one module without having unintended knock-on effects in other modules. Naturally, there's no unit tests either, and I honestly don't think this codebase could possibly be unit tested anyway given how it's implemented. There also never seems to be enough time to get things done even with 3 developers and 1 junior developer. With one developer and one junior, neither of which had significant input into the early design of the system, I don't see how we could possibly get anything done with keeping the current system working, implementing new features as needed and developing a replacement for the current codebase that is better organized. Is there an approach I can take to cope with this situation, or should I be getting my own CV in order as well at this point? If it was just me and the junior designer who would be left I'd go for the latter option almost without question. However, there's a team of front-end developers and content managers as well, and I'm worried what would become of them if I left and put them in a position where there would be no developers at all. The department might just be closed down altogether under such circumstances, and then I'd have their unemployment on my conscience as well!

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