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  • DNS slows down on development environment

    - by Sequenzia
    I have a local development environment setup on my Mac. I am running an Ubuntu Web Server inside of a Virtual Box VM. I setup a host file on my Mac that points my dev site to the IP of the Ubuntu Virtual Server. Everything works good other than the fact a lot (not all) of the time it takes more than 5 seconds to load a page. I used firebug to track down where the problem is and when it's slow the DNS part of my request is taking over 5 seconds. Like I said it's not all the time. Sometimes it resolves and loads the page within milliseconds. The same page one click will be super fast and then the next time it takes over 5 seconds. It's really slowing me down and I am not sure what is causing it.

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  • Methods of Geotargeting and optimising for location

    - by Switchfire
    This is somewhat an SEO question and somewhat a general web developer question. Our company website is pretty awful, I'm currently redesigning the new one, the problem is they have a directory called regions, which contains page for around 200 different locations around the country, all stuffed to the brim with keywords and useless things. Some of these pages work and the traffic's good enough to keep a few of them. Apart from creating a page for everyone again, is there another way of targeting all these locations without having to create a new page for each or is the a more dynamic way to do it? Any ideas or suggestions?

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  • After 10 Years, MySQL Still the Right Choice for ScienceLogic's "Best Network Monitoring System on the Planet"

    - by Rebecca Hansen
    ScienceLogic has a pretty fantastic network monitoring appliance.  So good in fact that InfoWorld gave it their "2013 Best Network Monitoring System on the Planet" award.  Inside their "ultraflexible, ultrascalable, carrier-grade" enterprise appliance, ScienceLogic relies on MySQL and has since their start in 2003.  Check out some of the things they've been able to do with MySQL and their reasons for continuing to use MySQL in these highlights from our new MySQL ScienceLogic case study. Science Logic's larger customers use their appliance to monitor and manage  20,000+ devices, each of which generates a steady stream of data and a workload that is 85% write. On a large system, the MySQL database: Averages 8,000 queries every second or about 1 billion queries a day Can reach 175,000 tables and up to 20 million rows in a single table Is 2 terabytes on average and up to 6 terabytes "We told our customers they could add more and more devices. With MySQL, we haven't had any problems. When our customers have problems, we get calls. Not getting calls is a huge benefit." Matt Luebke, ScienceLogic Chief Software Architect.? ScienceLogic was approached by a number of Big Data / NoSQL vendors, but decided against using a NoSQL-only solution. Said Matt, "There are times when you really need SQL. NoSQL can't show me the top 10 users of CPU, or show me the bottom ten consumer of hard disk. That's why we weren't interested in changing and why we are very interested in MySQL 5.6. It's great that it can do relational and key-value using memcached." The ScienceLogic team is very cautious about putting only very stable technology into their product, and according to Matt, MySQL has been very stable: "We've been using MySQL for 10 years and we have never had any reliability problems. Ever." ScienceLogic now uses SSDs for their write-intensive appliance and that change alone has helped them achieve a 5x performance increase. Learn more>> ScienceLogic MySQL Case Study MySQL 5.6 InnoDB Compression options for better SSD performance Tuning MySQL 5.6 for Great Product Performance - on demand webinar Developer and DBA Guide to MySQL 5.6 white paper Guide to MySQL and NoSQL: The Best of Both Worlds white paper

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  • Developer – Cross-Platform: Fact or Fiction?

    - by Pinal Dave
    This is a guest blog post by Jeff McVeigh. Jeff McVeigh is the general manager of Performance Client and Visual Computing within Intel’s Developer Products Division. His team is responsible for the development and delivery of leading software products for performance-centric application developers spanning Android*, Windows*, and OS* X operating systems. During his 17-year career at Intel, Jeff has held various technical and management positions in the fields of media, graphics, and validation. He also served as the technical assistant to Intel’s CTO. He holds 20 patents and a Ph.D. in electrical and computer engineering from Carnegie Mellon University. It’s not a homogenous world. We all know it. I have a Windows* desktop, a MacBook Air*, an Android phone, and my kids are 100% Apple. We used to have 2.5 kids, now we have 2.5 devices. And we all agree that diversity is great, unless you’re a developer trying to prioritize the limited hours in the day. Then it’s a series of trade-offs. Do we become brand loyalists for Google or Apple or Microsoft? Do we specialize on phones and tablets or still consider the 300M+ PC shipments a year when we make our decisions on where to spend our time and resources? We weigh the platform options, monetization opportunities, APIs, and distribution models. Too often, I see developers choose one platform, or write to the lowest common denominator, which limits their reach and market success. But who wants to be ?me too”? Cross-platform coding is possible in some environments, for some applications, for some level of innovation—but it’s not all-inclusive, yet. There are some tricks of the trade to develop cross-platform, including using languages and environments that ?run everywhere.” HTML5 is today’s answer for web-enabled platforms. However, it’s not a panacea, especially if your app requires the ultimate performance or native UI look and feel. There are other cross-platform frameworks that address the presentation layer of your application. But for those apps that have a preponderance of native code (e.g., highly-tuned C/C++ loops), there aren’t tons of solutions today to help with code reuse across these platforms using consistent tools and libraries. As we move forward with interim solutions, they’ll improve and become more robust, based, in no small part, on our input. What’s your answer to the cross-platform challenge? Are you fully invested in HTML5 now? What are your barriers? What’s your vision to navigate the cross-platform landscape?  Here is the link where you can head next and learn more about how to answer the questions I have asked: https://software.intel.com/en-us Republished with permission from here. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL Tagged: Intel

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  • Is there any reason to use C++ instead of C, Perl, Python, etc.?

    - by Ehsan
    As a Linux (server side) developer, I don't know where and why should I use C++. When I'm going to performance, the first and last choice is C. When "performance" isn't the main issue, programming languages like Perl and Python would be good choices. Almost all of open source applications I know in this area has been written in C, Perl and Python, Bash script, AWK and even PHP, but no one goes to use C++. I'm not discussing about some other areas like GUI or web application, I'm just talking about Linux and about CLI and daemons. Is there any satisfiable reason to use C++?

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  • Using hreflang to specify a catchall language

    - by adam
    We have a site primarily targeted at the UK market, and are adding a US-market alternative. As per Google's recommendations: To indicate to Google that you want the German version of the page to be served to searchers using Google in German, the en-us version to searchers using google.com in English, and the en-gb version to searchers using google.co.uk in English, use rel="alternate" hreflang="x" to identify alternate language versions. Which gives us: <link rel="alternate" hreflang="en-gb" href="http://www.example.com/page.html" /> <link rel="alternate" hreflang="en-us" href="http://www.example.com/us/page.html" /> We do get enquiries from other areas of the world - particularly where there are expat communities (Dubai, UAE, Portugal etc). By adding the above tags, is there a risk that Google will only surface our site for UK and US search users? Do we need to specify a catch-all that will default all other searches to our UK site?

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  • error of pdf2djvu: "Bogus memory allocation size"

    - by Tim
    I am using pdf2djvu to convert a pdf file into a djvu file, but got this error while trying to convert to either bundled or indirect multi-page djvu file: $ pdf2djvu 1.pdf -o 1.djvu 1.pdf: - page #1 -> #1 Bogus memory allocation size $ pdf2djvu 1.pdf -i 1.djvu 1.pdf: - page #1 -> #1 Bogus memory allocation size I was wondering what is wrong here and how I shall fix the problem? You can suggest another application other than pdf2djvu. My pdf file can be downloaded from here , in case that you may wonder what is special about it. Thanks and regards!

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  • How to access values of dynamically created TextBoxes

    - by SAMIR BHOGAYTA
    If one adds controls dynamically to a page and wants to get their information after PostBack, one needs to recreate these elements after the PostBack. Let's consider the following idea: First you create some controls: for(int i=0;i TextBox objBox = new TextBox(); objBox.ID = "objBox" + i.ToString(); this.Page.Controls.Add(objBox); } After PostBack, you want to retrieve the text entered in the third TextBox. If you try this: String strText = objBox2.Text; you'll receive an exception. Why? Because the boxes have not been created again and the local variable objBox2 simply not exists. How to retrieve the Box? You'll need to recreate the box by using the code above. Then, you may try to get its value by using the following code: TextBox objBox2; objBox2 = this.Page.FindControl("objBox2") as TextBox; if(objBox2 != null) Response.Write(objBox2.Text);

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  • Broken Links in different browsers

    - by kdorival
    Hi I'm having problems with our website, http://www.accessiblehomehealthcare.com, which is a wordpress 2.7 (version). All of a sudden our RSS links broke on the right side, which has happened before and I fixed it within 5 mins. Now, when I fix it, it doesn't look right in different version of I.E. or Firefox, I have I.E. 8 and Firefox 3.6.15 and it looks good for the most part, but there are a few parts where the links are broken. One browser the links would look ok but go to another page and the links or logos would be broken. Certain parts of the website should be static(identical) to the other pages of the site, but if a link is broken on one page, its perfect on another page. I was wondering was there a secret code for wordpress to keep the sites compatible with all browser versions or is there a bigger issue???? Any help or suggestions will help???

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  • Oracle University Nouveaux cours (Week 42)

    - by rituchhibber
    Nouveaux cours Parmi les nouveautés d'Oracle Université de ce mois-ci, vous trouverez : Database Oracle Enterprise Manager Cloud Control 12c: Install & Upgrade (Training On Demand) MySQL Performance Tuning (Training On Demand) Fusion Middleware Oracle GoldenGate 11g Fundamentals for Oracle (4 days) Oracle WebCenter Content 11g: Site Studio Essentials (5 days) Oracle WebCenter Portal 11g: Build Portals with Spaces (3 days) Business Intelligence Oracle BI 11g R1: Create Analyses and Dashboards (4 days) SOA & BPM SOA Adoption and Architecture Fundamentals (3 Days) eBusiness Suite R12 Oracle Using and Maintaining Approvals Management - Self-Study Course R12 Oracle HRMS Advanced Benefits Fundamentals - Self-Study Course WebLogic Oracle WebLogic Server 11g: Monitor and Tune Performance (Training On Demand) Oracle WebLogic Server 11g: Administration Essentials Self-Study Course (in French) Financial Oracle Project Financial Planning 11.1.2: Create Projects ( 3 days) Tuxedo Oracle Tuxedo 12c: Application Administration (5 days) Java Java SE 7: The Platform Evolves - Self-Study Course Primevera Primavera Client/Server Partner Trainer Course - Self-Study Course Primavera Progress Reporter 8.2 - Self-Study Course Contacter l' équipe locale d' Oracle University pour toute information et dates de cours.

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  • Coherence 3.7.1 Released

    - by JuergenKress
    Oracle Coherence 3.7.1 introduces REST API, exalogic infiniband integration, improved data access performance due to more efficient in-memory and disk-based storage, and query explain plan support and much more, download now! View the webcast: Unbeatable Performance for your Cloud Application Foundation. To download Coherence 3.7.1 please visit OTN. Coherence Screencasts: Coherence 3.7.1 – Extend Only Keys Coherence 3.7.1 – REST Support Coherence 3.7.1 – POF Object Identities and References Coherence 3.7.1 – POF Annotation Support Coherence 3.7.1 – Query Explain Plan For more information please visit the Oracle Coherence Knowledge Base For regular Coherence information become a member in the WebLogic Partner Community please first login at http://partner.oracle.com and then visit: http://www.oracle.com/partners/goto/wls-emea Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: Coherence,Coherence 3.7.1,Oracle,WebLogic,J2EE caching,OPN,Jürgen Kress

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  • Will small random dynamic snippets break caching

    - by Saif Bechan
    I am busy writing a WordPress plugin. Now most users have cache plugins installed, they cache the pages. I know also some webservers as nginx have php caching and whatnot. There are also things like memcached. Now I have to admit I do not know exactly how they work, if anyone have some good links on how they work I would be glad. Some links where it's explained simple, not to technical. Now the question. My plugin displays different statistics on posts, they are always different, will this break the caching of the page. To take is a step further, sometimes the statistics of the post needs updating, and there is a small javascript snippet added to the page. Now will these two action result in the page not caching, or am I ok.

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  • What's the best way to manage list item sort order with Drag & Drop UI?

    - by Reddy S R
    I have a list of Students that I should display to user on a web page in tabular format. The items are stored in DB along with SortOrder information. On the web page, user can rearrange the list order by dragging and dropping the items to their desired sort order, similar to this post. Below is a screenshot of my test page. In the above example, each row has sort order info attached to it. When I drop John Doe (Student Id 10) above the Student Id 1 row, the list order should now be: 2, 10, 1, 8, 11. What's the optimistic (less resource hungry) way to store and update Sort Order information? My only idea for now is, for every change in the list's sort order, every object's SortOrder value should be updated, which in my opinion is very resource hungry. Just FYI: I might have at most 25 rows in my table.

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  • Does a "nofollow" attribute on a link prevent URL discovery by search engines?

    - by Stephen Ostermiller
    I know that nofollow prevents link juice from being passed across a link. But if search engine robots discover a link with a nofollow on it, will they add that link to their crawl queue? In other words, if I create a link to a brand new page and put a rel=nofollow attribute on that link, will it prevent search engine bots (particularly Googlebot) from crawling the page. (Assuming that this link remains the only link into that page.) I've read conflicting reports about this over the years and I'm looking for authoritative references about the current state of affairs. Official statements from Google or published results of independent testing would be ideal.

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  • Webcast: New Features of Solaris 11.1 and Solaris Cluster 4.1

    - by Jeff Victor
    If you missed last week's webcast of the new features in Oracle Solaris 11.1 you can view the recording. The speakers discuss changes that improve performance and scalability, particularly for Oracle DB, and many other enhancements. New features include Optimized Shared Memory (improves DB startup time), accelerated kernel locks (improves Oracle RAC performance and scalability), virtual memory improvements, a DTrace data collecter in the DB, Zones installed on Shared Storage (simplifies migration), Data Center Bridging, and Edge Virtual Bridging. To view the archived webcast, you must register and use the URL that you receive in e-mail.

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  • Is it good practice to analyse who introduced each bug?

    - by Michal Czardybon
    I used to analyse performance of programmers in my team by looking at the issues they have closed. Many of the issues are of course bugs. And here another important performance aspect comes - who introduced the bugs. I am wondering, if creating a custom field in the issue tracking system "Blamed" for reporting the person who generated the problem, is a good practice. One one hand it seems ok to me to promote personal responsibility for quality and this could reduce the additional work we have due to careless programming. On the other hand this is negative, things are sometimes vague and sometimes there is a reason such us "this thing had to be done very quickly due to a client's...". What to you think?

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  • Oracle makes Virtualized Java Applications Practical. Announces Brand New Products

    - by blake.connell
    New Oracle Virtual Assembly Builder and Oracle WebLogic Suite Virtualization Option make running Java applications in a virtual environments easy and practical. • Oracle Virtual Assembly Builder is a new product designed to help organizations quickly and easily deploy multi-tier enterprise applications in virtualized environments. It enables administrators to quickly configure and provision these applications. • Oracle WebLogic Suite Virtualization Option delivers Oracle WebLogic Server on Oracle JRockit Virtual Edition delivering 'near-native' performance and increased server density. • Oracle WebLogic Server on Oracle JRockit Virtual Edition runs directly on Oracle VM without a guest operating system, a unique capability resulting in better performance and more application server runtime per system. Oracle WebLogic Suite Virtualization Option and Oracle Virtual Assembly Builder can drive operational efficiency and agility. Customers can dynamically scale up/down the underlying software infrastructure and applications with ease through software automation. Register for a live webinar with Oracle product experts Read the press release For more product information: Oracle Virtual Assembly Builder Oracle WebLogic Suite Virtualization Option

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  • Updated Agenda for OTN Architect Day Los Angeles (Oct 25)

    - by Bob Rhubart
    Here's the latest information on the session schedule and content for Oracle Technology Network Architect Day in Los Angeles on October 25, 2012. Registration is open, but seating is limited. When: Thursday October 25 12, 2012 8:30am – 5:00pm Where: Sofitel Los Angeles 8555 Beverly Boulevard Los Angeles, CA 90048 Agenda Time Session Title Room 8:30 am - 9:00 am Registration and Continental Breakfast 9:00 am - 9:15 am Welcome and Opening Comments | Bob Rhubart Beverly Ballroom 9:15 am - 10:00 am Engineered Systems: Oracle's Vision for the Future | Ralf Dossmann Oracle's Exadata and Exalogic are impressive products in their own right. But working in combination they deliver unparalleled transaction processing performance with up to a 30x increase over existing legacy systems, with the lowest cost of ownership over a 3 or 5 year basis than any other hardware. In this session you'll learn how to leverage Oracle's Engineered Systems within your enterprise to deliver record-breaking performance at the lowest TCO. Beverly Ballroom 10:00 am - 10:30 am Monitoring and Managing Applications in the Cloud | Basheer Khan Oracle offers a broad portfolio of software and hardware products and services to enable public, private and hybrid clouds to power the enterprise. However, enterprise cloud computing presents new management challenges, that need to be addressed to realize the economic benefits of cloud computing. In this session you will learn about the methods and tools you can use to proactively monitor your end-to-end Oracle Applications environment in the cloud, define service-level objectives, gain insight into your end users, and troubleshoot performance problems from a single console. Beverly Ballroom 10:30 am - 10:45 am Break 10:45 am - 11:30 am Breakout Sessions (pick one) Cloud Computing - Making IT Simple | Dr. James Baty The road to Cloud Computing is not without a few bumps. This session will help to smooth out your journey by tackling some of the potential complications. We'll examine whether standardization is a prerequisite for the Cloud. We'll look at why refactoring isn't just for application code. We'll check out deployable entities and their simplification via higher levels of abstraction. And we'll close out the session with a look at engineered systems and modular clouds. Beverly Ballroom Innovations in Grid Computing with Oracle Coherence | Ashok Aletty Learn how Oracle Coherence can increase the availability, scalability and performance of your existing applications with its advanced low-latency data-grid technologies. Also hear some interesting industry-specific use cases that customers had implemented and how Oracle is integrating Coherence into its Enterprise Java stack. Hollywood Room 11:30 am - 12:15 pm Breakout Sessions (pick one) Enterprise Strategy for Cloud Security | Dave Chappelle Security is high on the list of concerns for many organizations as they evaluate their cloud computing options. This session will examine security in the context of the various forms of cloud computing. We'll consider technical and non-technical aspects of security, and discuss several strategies for cloud computing, from both the consumer and producer perspectives. Beverly Ballroom Oracle Enterprise Manager | Perren Walker This session examines new Oracle Enterprise Manager monitoring, administration, and management features for Oracle Exalogic. It focuses on two management themes: cloud management related to virtualization and applications-to-disk management. For private cloud management, it discusses virtualization management features providing an enhanced set of application deployment capabilities enabling IaaS as well as PaaS interactions. Then from an end-to-end perspective, it covers the specific capabilities and—where applicable—best practices for machine, cloud, middleware, and application administration. Hollywood Room 12:15 pm - 1:15 pm Lunch Beverly Ballroom Lounge 1:15 pm - 2:00 pm Panel Discussion - Q&A with session speakers Beverly Ballroom 2:00 pm - 2:45 pm Breakout Sessions (pick one) Oracle Cloud Reference Architecture | Anbu Krishnaswamy Cloud initiatives are beginning to dominate enterprise IT roadmaps. Successful adoption of Cloud and the subsequent governance challenges warrant a Cloud reference architecture that is applied consistently across the enterprise. This presentation will answer the important questions: What exactly is a Cloud, why you need it, what changes it will bring to the enterprise, and what are the key capabilities of a Cloud infrastructure are - using Oracle's Cloud Reference Architecture, which is part of the IT Strategies from Oracle (ITSO) Cloud Enterprise Technology Strategy ETS). Beverly Ballroom 21st Century SOA | Jeff Davies Service Oriented Architecture has evolved from concept to reality in the last decade. The right methodology coupled with mature SOA technologies has helped customers demonstrate success in both innovation and ROI. In this session you will learn how Oracle SOA Suite's orchestration, virtualization, and governance capabilities provide the infrastructure to run mission critical business and system applications. We'll also take a special look at the convergence of SOA & BPM using Oracle's Unified technology stack. Hollywood Room 2:45 pm - 3:00 pm Break 3:00 pm - 4:00 pm Roundtable Discussion Beverly Ballroom 4:00 pm - 4:15 pm Closing Comments & Readouts from Roundtables Beverly Ballroom 4:15 pm - 5:00 pm Networking / Reception Beverly Ballroom Lounge Note: Session schedule and content subject to change.

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  • Showing All Pages in a SharePoint Wiki Library

    - by Damon Armstrong
    Opening a SharePoint wiki takes you to the wiki homepage, which is what most users want and expect.  Administrators, on the other hand, will occasionally need to see a full list of wiki pages in the wiki library.  Getting to this view is really easy, but you have to know where to look. The problem is that when viewing a wiki page SharePoint conveniently removes the Library tab from the ribbon, and the Library tab houses the controls you normally use to switch views.  Many an admin has been frustrated by the fact that they cannot get to this functionality.  A bit more searching, however, reveals that the Page tab in the ribbon contains a button in the Page Library group called View All Pages.  As the name suggests, clicking this button displays a document library style view all the pages in the wiki.  It also makes the Library tab available to switch views and gives administrators access to all of the standard Library tab functionality.

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  • Kiosk Mode Coding in Chromium

    - by Aaron
    I don't know how easy this would be, since I don't know anything about it, but I need an Ubuntu setup where the machine boots up, displays the login for a few seconds allowing a chance to log in as an admin, and then precedes to automatically log in to a user account which directly opens Chromium (any other browser is acceptable) in a kiosk mode where only the web content is visible, all Chromium keyboard shortcuts are disabled, and all but a select few websites are blocked, redirecting back to the home page after an "Unauthorized web page" warning comes up if the URL constraint is violated. Is it possible to code a kiosk setup like this, or am I asking for too much? If I'm simply uninformed, and there is already much documentation on anything like this, please redirect me to an appropriate page. If you can code or set up something like my description, please reply with step-by-step instructions, and instructions on how to modify the elements of the kiosk mode. Thank you in advance for any help. (Note: I'm currently using Ubuntu 10.04, but any distribution would work.)

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  • Request Validation in ASP.NET 4.0

    - by Ben Bastiaensen
    Up to ASP.NET 3.5 Request Validation is enabled by default. In order to to disable this for a page you needed to set the ValidationRequest property in the page directive to false. This is no longer the default case in ASP.NET 4.0. If you want to use this behaviour you need to add the follwing setting in web.config  <httpRuntime requestValidationMode="2.0" /> Of course you need to check all input in the page for XSS or other malicious input if you set the pages request validation to false.

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  • Best practise for meta tags in various languages

    - by Jack Lockyer
    We have a global site, all hosted on one .com domain (www.website.com/en www.website.com/es www.website.com/pt www.website.com/ru etc) each language sub directory is identical to one another (apart from being in different languages) My question is, should I translate each meta keyword for each page or just use the english versions? e.g. English page about private jets : keyword "private jet" French version of exactly the same page : keyword "private jet" or "jet privé" If anyone knows whether language specific keywords carry any weight in search engines when the actual website is a .com and not a country specific domain, that would be really helpful! Thanks in advance!

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  • Our plans for ASP.NET AJAX and SharePoint 2010

    The new MS Office and SharePoint release is just around the corner, and I want to assure everyone that we will provide full support for SP 2010 in our next RadControls release - Q2 2010. We have already put up a page with information about the new SP release. You can find all the information you need at the SharePoint product page on our site. In this post I will talk about the ASP.NET AJAX controls, but as you will see on the product page, we will also offer support for our Silverlight UI controls.   The most important thing I want to share is that the RadEditor for MOSS product will updated for the 2010 version and you can already get a beta version from your account (provided you have a license for the ASP.NET AJAX controls). We still have some work to do in the WCM scenario, but ...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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