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• Lower your Applications Infrastructure Cost with Oracle Database 11g

  - by john.brust

  If you missed our live Oracle Database 11g Release 2 webcast last Friday, the replay is available. So, join us for the on demand free Webcast in which Mark Townsend, Vice President of Oracle Database Product Management, discusses how running your Oracle applications (Oracle eBusiness Suite, Oracle's PeopleSoft, and Oracle's Siebel ) on Oracle Database 11g can improve performance and scalability, eliminate downtime, and reduce IT infrastructure costs. In the Q&A segment, Mark answers questions about compression, virtual machines, Oracle Active Data Guard, online application upgrades, and much more. Note: Turn off pop-up blockers if the slides do not advance automatically.

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• The Digital Video Recorder (DVR) is old news, the IP TV is the new generation.

  Its been more than 10 years since the first DVR came out in the US, the idea that you wont be wasting time by programming your video to record a show. Tivo was the first company to bring the idea of a hard disk to store your programs as well as the recurring shows recorded. Its being more than 10 years since that technology advance that improved the live of many families, yet after 10 years the technology hasnt improved much besides all cable and satellite companies provide their own device without...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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• Why do HDFS clusters have only a single NameNode?

  - by grautur

  I'm trying to understand better how Hadoop works, and I'm reading The NameNode is a Single Point of Failure for the HDFS Cluster. HDFS is not currently a High Availability system. When the NameNode goes down, the file system goes offline. There is an optional SecondaryNameNode that can be hosted on a separate machine. It only creates checkpoints of the namespace by merging the edits file into the fsimage file and does not provide any real redundancy. Hadoop 0.21+ has a BackupNameNode that is part of a plan to have an HA name service, but it needs active contributions from the people who want it (i.e. you) to make it Highly Available. from http://wiki.apache.org/hadoop/NameNode So why is the NameNode a single point of failure? What is bad or difficult about having a complete duplicate of the NameNode running as well?

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• Amazon Kindle e-Ink based device programming: Java ME CDC old school

  - by hinkmond

  If you like doing Amazon Kindle development in the old-school way (Java ME CDC-based apps) on their e-Ink based readers, then here's how to download and use the Amazon Kindle Development Kit (KDK). See: Download Amazon KDK Here's a quote: We're excited to introduce the all- new Kindle family: Kindle, Kindle Touch, and [blah-blah]. The KDK has APIs, tools, and documentation to help you create active content for Kindle, Kindle Touch, and other E Ink Kindles. Kickin' old school with Java ME CDC technology is the way to go. You can come up with the next Word with Friends this way. Hinkmond

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• "Super meatboy"-ish replay

  - by Ron

  I'm making a platformer built from mini-levels - and I want to create a sort of a replay of all the player tries that the player did for the level. My question is - what is the best way to record the player's actions in-game, so that I could replay them later when he finishes the level. I thought about recording only the player's input and replay them later on, each on a clone of the player. The problem I have with this is with dynamic obstacles (that could be moved around) - if one clone moves them, it throws the simulation off for the rest of the clones. So then I thought about recording every frame the X/Y of the player, and then just replay it - but that seems it could cause a major memory leak and very ineffective. So - does anyone have any ideas? :)

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• One to many problem with implementing 301 redirect after changed urls

  - by user16136

  I have a problem. I had an old dynamic url which I have now split into multiple static urls. e.g. www.mydomain.com/product.php?type=1&id=2 www.mydomain.com/product.php?type=2&id=3 www.mydomain.com/product.php?type=2&id=4, etc which I have changed to something like www.mydomain.com/electronics/radio www.mydomain.com/electronics/television www.mydomain.com/mobile/smartphone, etc. Google has previously indexed the dynamic urls and search results show the old urls. I want search to point to the new urls. I have kept the old url active, so both urls work. How can I set up a 301 redirect in this case? I run IIS and it only allows a page to be redirected to 1 url. Should I deactivate the old dynamic url? In that case I lose all the previous seo rankings..

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• Display current layout (language code/country flag) in keyboard indicator

  - by Jono

  Just upgraded from 10.04 to 10.10, and the keyboard indicator applet no longer displays the two-letter country code for the active layout. This is terrible. Is this the default behaviour? Anyone using two layouts can't tell which language they're in. I can't seem to find the setting for this, it used to be in the preferences for keyboard layout. Update 1: In case this wasn't obvious - I have two keyboard layouts - English and Hebrew. I just upgraded form 10.04, where the country code (USA/IL) was displayed, overlaid on the flag. Now all I get is a vague keyboard icon, and can't find the settings for this. Update 2: this seems to be a bug that people have been reporting since Lucid, and is now back in Maverick

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• quick prototyping in project design & development

  - by lurscher

  i'm currently working on a project in my spare time (mostly 3-4 hours from monday to friday, and up to 6 hours on sundays) and i've found redmine very useful to hold a record of development tasks. However, there are some stuff, specially when you are trying to prototype or brainstorm a redesign of a set of related classes, that the best tool that i've found for this still is a sheet of paper and a pen. I want to understand if maybe i'm just short of getting to work properly with existing tools. Do you find the use of a notebook or a journal an unavoidable part of software design? are there better alternatives? how do you organize pen-and-paper work and other software management tools like redmine?

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• Switching hosting from Google Apps to GoDaddy

  - by Sahir M.

  I am in a pickle here. I just bought a hosting service from GoDaddy and I already have a domain registered with Google Apps. So I went into the domain control center from Google Apps and I changed the nameservers to point to GoDaddy's and then I deleted all the A records and also removed the www and main CNAME. Then I created an A record with host "@" which points to the IP address I got from GoDaddy (this is the server address I see under the category Server in the GoDaddy Hosting Control Center). Also, I see that in this domain center, the domain forwarding is set to forward to my address "www.domainsite.com". So right now when I go to my website I see the error "This website is temporarily unavailable, please try again later." Does anyone know how to set this up properly or know what problem I could be having? Thanks!

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• Reach More Customers - Partner Event Publishing System Now Available!

  - by swalker

  The Partner Event Publishing Service is now available to partners that have completed at least one Specialization. If you are an active Gold, Platinum or Diamond OPN member having accomplished at least one Specialization then you can start publishing your standalone live events today, including both in-person and webinar activities. Events are published on both Oracle.com/events and on Oracle’s internal calendar. You benefit by reaching new potential customers and creating more brand awareness.  Reach more customers by publishing Partner led events on Oracle.com/events by filling out a simple spreadsheet and submitting them to [email protected]. Click here for more information, and click here to download the Partner Event Publishing Form spreadsheet.

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• How long should I keep 301 redirecting pages from a deprecated domain?

  - by ElHaix

  I had an old domain that I have deprecated, but 301 redirected all results from it to my new site. The new site is now receiving a decent amount of traffic, but I don't know if it's 301 redirected from the old site, and doing a site:[old site] still shows several thousand pages indexed. Since all pages from the old site are 301 redirected, will they ever be removed from the index, as long as the old domain name is active? As a rule of thumb, somewhere I got 90 days for any significant site changes. When is it safe to burn the old domain?

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• Internet Connectivity Indicicator on Unity

  - by Sathish

  How can I check whether my internet connection is active on Ubuntu. If I am connected to a wired or wi-fi network, the indicator applet shows that I'm connected. But there is now way to find out the internet is working or not. I have some problem in my internet connectivity and I frequently lose my connection. I found this link is useful Internet connectivity indicator applet But I don't know that where should I use this code! #!/bin/bash if ping -c 1 -W 2 google.com > /dev/null; then echo "Up" else echo "Down" fi

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• Forward to other domain with CNAME

  - by xybrek

  In my GoDaddy DNS manager, I made some A Record that points to *.mirror for my domain Now when I access URL 123.mirror.mydomain.com from the browser I can see that my app is loaded, and its all OK. My problem now is when doing a CNAME point to the URL above on another domain like this: Accessing 123.otherdomain.com which I expect to "forward to" 123.mirror.mydomain.com I only get this 404 error: The IP 173.194.71.121 is actually ghs.googlehosted.com What I am missing here? Why 123.otherdomain.com which points to 123.mirror.mydomain.com cannot open that page and I think google is handing the web page request?

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• Start Your Session Search: Content Catalog is Live

  - by RichSchwerin

  Untitled Document Search through nearly 300 exhibitors and 1,600 sessions across 80 tracks, plus speakers and demos With Oracle OpenWorld 2011 just 15 weeks away, Content Catalog is now available online. That means you can browse through almost 300 exhibitors and nearly 1,600 content sessions across more than 80 different tracks, along with scores of demos. Even better, you can perform keyword searches for subjects that interest you most, from Active Data Guard to ZFS (and everything in between). But wait, there's more... Speaker Catalog--a veritable Oracle Who's Who--is also live online. You can search through hundreds of speakers, with names, titles, companies, and which sessions they're presenting. Save $500: Register Today Now that you've seen all the great content and speakers lined up for Oracle OpenWorld 2011, join us in San Francisco, October 2-6. Register by the Early Bird deadline of July 29th and save $500.

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• What are MPEG I, P and B frames?

  - by Fasih Khatib

  I was recently going over MPEG articles and videos to understand how it works. I understand what I, P and B frames do but I do not understand how the prediction is calculated. Assume that I want to record a video of a ball falling from the sky to the ground and then bouncing a couple of times before finally coming to a halt. Also, I am not clear with the concept of the 16x16 macroblock. Please tell me: how prediction is calulated what is macroblock and how it helps in MPEG encoding My references: MPEG Prediction Video on MPEG conversion

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• Oracle Streamlines Tracking of Global Carbon Footprint and Greenhouse Gas Emissions

  - by Evelyn Neumayr

  Oracle has automated its global carbon footprint and greenhouse gas emissions measurement using Oracle Environmental Accounting and Reporting. By using this solution, Oracle was able to increase organizational efficiency and reduce the need for labor intensive, manual processes in the tracking of greenhouse gas (GHG) emissions for both voluntary and legislated environmental reporting. The move to Oracle Environmental Accounting and Reporting enables Oracle to more effectively meet both internal and governmental reporting needs, while addressing the associated economic mandates for reporting emissions and sustainability efforts. Organizations across the company can now record environmental data such as energy consumed or energy generated at facilities or locations within the enterprise, and can automatically calculate corresponding GHG emissions resulting from the use of emission sources. In addition, Oracle Environmental Accounting and Reporting includes data integration from multiple applications to ensure proper representation and calculation of emissions across the globe. The result is access to fast, accurate data and reporting to help the company meet its sustainability goals.

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• How can I connect to a Windows (7) running in VirtualBox from the network with RDP?

  - by Andre

  I have a Windows7 guest running in a VirtualBox hosted by Precise (Ubuntu 12.04 LTS). In the settings of the virtual machine I have activated the 'Remote Display' (Enable Server) with default settings (server port, authentication method). The network of the guest is attached to NAT. I try to use Remmina to connect from the host to the guest. I tried 127.0.0.1, 127.0.0.2, the internal IP of Win7 (10. ...). Did not work so far. Do I have to active something and what on Win7 (home premium)? I would like to connect to the Win7 remote desktop from the local network. Can I stay in NAT mode (preferred due to our network policy), or do I have to go for 'bridged'? Thanks!

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• South African MVPs deserve their title.

  - by MarkPearl

  Recently I read a post by someone who felt the Microsoft MVP program had failed. My local experience with the MVP program would tend for me to disagree. On Saturday I attended a free Windows Phone 7 event organized by Robert MacLean and Rudi Grobler both of whom are local MVP’s. First of all, kudos to them for organizing the event which included a free lunch and flash stick and had some great content for a free event. Secondly, this is not the first time that either of these two MVP’s have organized events. They are active in the community, present at the majority of local events and are always approachable and give an “honest” opinion. For me, that is what an MVP stands for and at least in my region I feel that the MVP program is a real success.

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• Google Analytics Content Experiments for non-simultaneous tests

  - by mnort9

  I really like how Google Analytics displays the results of content experiments. However, it seems the tool only works for simultaneous tests. I'd like to use the tool without implementing the page variation code into my site. For example, I want to test copy on an ecommerece category page. The original page variation would be the current page for the past 2500 visits. After making the copy changes, the new variation would be for the next 2500 visits. I realize I can simply record the metrics before and after each variation, but I'd like to take advantage of Google's presentation of the experiment. Is it possible to use the Content Experiments in this way?

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• Not Quite Multiseat

  - by user2773520

  I am attempting to create a pair programming environment sort of set up like multiseat: https://help.ubuntu.com/community/MultiseatX[1] or https://help.ubuntu.com/community/MultiseatOneCard[2] (as the standard issue boxes only have one graphics card) The thing is, I only want one login session, just with 2 monitors, keyboards, and mice. As well as having 2 active applications (so 2 people can be typing independantly). They should ideally be able to mouse over and click & type in the other persons monitor, as well as move windows between the montors. Does anybody know of anything like this that will work? We are running Ubuntu 12.04.

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• notification from additional driver

  - by MAHESH

  today i installed ubuntu 11.10 in my HP laptop well everything goes well installation and updates. i get notification on task bar from additional driver No propritery drivers are in use on this system i will elaborate what i seen on the screen proprietry driver do not have public source code that ubuntu developer are free to modify security updates and correction depend solely on the respnsiveness of the manufacture ubuntu cannot fix or improve these drivers. ATI/AMD proprietry FGLRX graphic driver( post release update) 2.ATI/AMD proprietry FGLRX graphic driver ATI/AMD propreitry FGLRX graphics driver(post release update) tested by ubuntu developers License propreitry 3D accelerated propreitry graphic drivers for ATI cards. This driver is required to fully utilise the 3D potential of some ATI graphic and as well as provide 2D accelerate newer card. guys do i need to active this driver in order to accomplish the complete installation. your response will be greatful

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• Should I use my domain registrar's nameserver or find an alternative?

  - by Fazal

  I've recently been moving my client's sites as well as my own and my friends to a cloud server instance I've set up. I don't have a nameserver setup on my instance because I'm not sure how to deploy and manage that side of things yet. I'm using the default nameservers where possible for the sites and just changing the A record DNS settings to point at the server. Some clients are complaining that the sites are running slower then before (since I changed nameservers back to the defaults). Some of the domain registrars are a nightmare to deal with and I can't convince some of my clients to leave them. Is there a sort of paid service I can use instead?

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• Kinect joint coordinates and XNA animation

  - by Sweta Dwivedi

  I have written a program to record the x,y,z coordinated of the Hand joint and I want to animate my models 2D or 3D according to these coordinates. . .However the output of the x,y,z coordinates are fluctuating from -0 to 1 but not more than that.. So i assume I will need to multiply them back with the screen width and height, however it still doesnt seem to animate according to the original x,y,z points Any transformations I might be missing out? while ((line = r.ReadLine()) != null) { string[] temp = line.Split(','); int x = (int) float.Parse(temp[0]))* maxWidth); int y = (int) float.Parse(temp[1])) * maxHeight); }

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• Wireless network unstable and often WPA2 protected networks just don't work

  - by Pedro

  I have an issue with my wireless network,so that the connection is working for only a few minutes, after which my browser no longer is able to load pages, even if the wireless is still active/connected. Furthermore, most of the time WPA2-personal protected networks don't work, (yesterday was the first time it worked - for a few minutes). By "don't work" I mean that it seems to successfully connect, but the browser can't load pages. I am running Ubuntu 10.10 32bit, and my wireless card is a RaLink rt3090. No changes have been done to any settings since Ubuntu was installed - networking began working on its own after the installation - but as described in first paragraph not very well.

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• Why Wikipedia doesn't appear as a referral in Google Analytics' Traffic sources?

  - by Rober

  One of my clients has a website and got not spammy backlinks in a Wikipedia article. When I test it for SEO purposes with Google Analytics (from different IPs), apparently there is no referral information. On the Real-Time view my test visit is visible but with There is no data for this view in the referrals subview. And this visits appear as (direct) / (none) on the Traffic sources view. Wikipedia is not hiding in any way its links origin, since it is shown in the server visits log. Is Google ignoring Wikipedia as a referral? Am I missing anything else? Update: Now it works, several days after the link was active. Maybe something is detecting for how long the link was there so that it doesn't work just from the beggining, as a security measure? Many visits are actually not recorded.

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