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• Silverlight Cream for March 08, 2011 -- #1056

  - by Dave Campbell

  In this Issue: Joost van Schaik, Manas Patnaik, Kevin Hoffman, Jesse Liberty, Deborah Kurata, Dhananjay Kumar, Dennis Delimarsky, Samuel Jack, Peter Kuhn, WindowsPhoneGeek, and Jfo. Above the Fold: Silverlight: "How I let the trees grow" Peter Kuhn WP7: "Simple Windows Phone 7 / Silverlight drag/flick behavior" Joost van Schaik Shoutouts: SilverlightShow has their top 5 from last week posted, plus the ECOContest is ready to be voted on: SilverlightShow for Feb 28 - March 06, 2011 Drew DeVault is a young man involved with the Microsoft Student Insiders. He gave a WP7 presentation at RMTT and has posted his material: Post-Session: Windows Phone 7 @ RMTT Rui Marinho has an app in the ECO Contest called Forest Findr. is based on the BIng Map Control for silverlight and Sql Spatial data, and helps you find Forests and get geolocated pictures and wikipedia information, and has a post up with a bunch of info on it here: Forest Findr. my entry on the SilverlightShow EcoContest From SilverlightCream.com: Simple Windows Phone 7 / Silverlight drag/flick behavior Joost van Schaik has a behavior that makes *anything* draggable and 'flickable' in WP7 ... read the intro, scroll to the bottom to watch the demo, and then grab up the code... cool stuff, Joost! Data Aggregation Using Presentation Model in RIA and Silverlight 4 Manas Patnaik sent me a link to his blog, and it appears he's got lots of Silverlight goodness out there so you'll be hearing more about him. This first post is on the Presentation Model in RIA and Silverlight 4... good discussion, diagrams and code... good job, Manas! WP7 for iPhone and Android Developers - Advanced UI Kevin Hoffman has part 3 of an ambitious 12-part tutorial series up on WP7 development ... this go-around is concentrating on Advanced UI - Panorama/Pivot controls, DataBinding, ObservableCollections, and Converters... whew! Sterling DB on top of Isolated Storage – 2 Jesse Liberty has part 2 of his Sterling series up... this time setting up the database in App.xaml so it can be used for dealing with tombstoning. Silverlight Charting: Formatting the Tick Marks Deborah Kurata's next chart tutorial is all about showing you how to continue to dress up your charts.. this time by formatting the tick marks... if you don't know what that is... check out the first image in the post. Stored Procedure in WCF Data Service Dhananjay Kumar has a very nice tutorial up on using a stored proc with WCF Data Services... I happen to know someone working on just that at this time. If you have this in mind, here's a step-by-step guide to getting it done. Windows Phone 7 – Episode 5 – Pages Dennis Delimarsky has part 5 of his WP7 tutorial series up and is discussing Pages in this 17 minute video. Unpacking Simon Squared: My mini framework-independent animation library Samuel Jack has not only Open-Sourced the WP7 game he built and blogged about, but he's now explaining some of the structure of the game in posts such as this one about the animation library he wrote that his game is built on. How I let the trees grow Peter Kuhn shares with us the code he used for the tree animation in his ECO Contest entry. There's a lot to learn in this post about performance ... the fully-animated tree has about 20K elements... 5K branches and 20K leaves... check it out. WP7 ToastPrompt in depth WindowsPhoneGeek takes a deep dive into the ToastPrompt control in the Coding4fun Toolkit... everything you need to completely use the control including sample code. Beware the loaded event Jfo talks about another frustration point she had with WP7 development, and that is around the use of the loaded event... read these tips from someone that's been there. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Silverlight Cream for February 17, 2011 -- #1048

  - by Dave Campbell

  In this Issue: Oren Gal, Andrea Boschin(-2-), Kevin Hoffman, Rudi Grobler(-2-, -3-), Michael Crump, Yochay Kiriaty, Peter Kuhn, Loek van den Ouweland, Jeremy Likness, Jesse Liberty, and WindowsPhoneGeek. Above the Fold: Silverlight: "Multiple page printing in Silverlight4 - Part 2 - preview before printing" Oren Gal WP7: "Windows Phone 7 Tombstoning with MVVM and Sterling" Jeremy Likness XNA: "XNA for Silverlight developers: Part 4 - Animation (frame-based)" Peter Kuhn From SilverlightCream.com: Multiple page printing in Silverlight4 - Part 2 - preview before printing Oren Gal has part 2 of his Printing with Silverlight 4 series up, and this time he's putting up a preview... how cool is that? Inject ApplicationServices with MEF reloaded: supporting recomposition Andrea Boschin revisited his Inject ApplicationServices with MEF post because of feedback, and took it from the realm of an interesting example to a useful solution. Windows Phone 7 - Part #5: Panorama and Pivot controls Andrea Boschin also has part 5 of his WP7 series up at SilverlightShow... want a good demo of both the panorama and the pivot controls... here it is all in one tutorial WP7 for iPhone and Android Developers - Introduction to C# This should be good.. a 12-part series on SilverlightShow by Kevin Hoffman on porting your iPhone/Android app to WP7... this first part an intro to C# Balls of Steel Rudi Grobler discusses the upcoming (?) release of 'Duke Nukem Forever', and has a 'soundboard' for WP7 to celebrate the event... get your Duke Nukem on with these sounds! Moonlight 4 (Preview) is here Rudi Grobler also has a post up about the release of Moonlight by Novel for Silverlight 4!... explanation and links on his post. WP7 Podcasts Rudi Grobler highlights two WP7 Podcasts that are putting out good material... check them out if you haven't already. Having Fun with Coding4Fun’s Windows Phone 7 Controls Michael Crump takes a look at his WP7 app and uses the Coding4Fun project toolset while doing so... getting the tools, setting them up, and consuming them. Windows Phone Silverlight Application Faster Load Time Yochay Kiriaty has a good long discussion up about how to get faster load time out of your WP7 apps... good useful external links throughout. XNA for Silverlight developers: Part 4 - Animation (frame-based) Peter Kuhn's part 4 of his XNA for Silverlight devs is up at Silverlightshow and is a great tutorial on frame-based animation. Windows Phone SoundEffect clipping Loek van den Ouweland has some good information about soudn clips on WP7... the solutions aren't always code solutions.... good to know info. Windows Phone 7 Tombstoning with MVVM and Sterling Jeremy Likness is discussing Tombstoning via MVVM and Sterling... read on how Sterling gives you a leg up on the Tombstone express. Video: Reactive Phone Programming For Windows Phone 7 Fitting in nicely with his podcast on Reactive Programming, Jesse Liberty releases a video on Reactive Programming for WP7. Talking about Data Binding in WP7 | Coding4fun TextBoxBinding helper in depth WindowsPhoneGeek's latest post walks through WP7 databinding in detail with lots of good external links, then follows up with a discussion of the Coding4Fun Binding Helpers Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• ATG Live Webcast June 14: Technical Preview of EBS 12.2 Online Patching

  - by BillSawyer

  Online Patching is is one of the cornerstone new features in our upcoming Oracle E-Business Suite 12.2 release. This ground-breaking feature is based upon Edition-Based Redefinition, a new 11gR2 Database feature that was built to Oracle Applications division specifications to allow the E-Business Suite's database tier to be patched while the environment is running.  Online Patching combines the use of Edition-Based Redefinition and new E-Business Suite technologies to allow patching to the E-Business Suite's database and application tier servers while the environment is being actively used by its end-users. This webcast provides a detailed technical preview of: How this new feature works How it affects E-Business Suite end-users How it affects E-Business Suite database administrators and patching lifecycles How it affects developers and third-party software vendors responsible for E-Business Suite customizations and extensions The presenter for this event is Kevin Hudson, Senior Director and one of the Online Patching architects. There will be a special extended Q&A Session at the end of this presentation, given the nature of the materials and the questions that we expect from you. ATG Development staff supporting the Q&A session will include Elke Phelps, Santiago Bastidas, Max Arderius, and other ATG architects. Date:               Thursday, June 14, 2012Time:              8:00 AM - 10:00 AM Pacific Standard Time (Special 2-hour Time)Presenter:    Kevin Hudson, Senior Director, Applications Technology IntegrationWebcast Registration Link (Preregistration is optional but encouraged) To hear the audio feed:   Domestic Participant Dial-In Number:           877-697-8128   International Participant Dial-In Number:      706-634-9568   Dial-In Passcode:                                              100815To see the presentation:    The Direct Access Web Conference details are:    Website URL: https://ouweb.webex.com    Meeting Number:  597470987If you miss the webcast, or you have missed any webcast, don't worry -- we'll post links to the recording as soon as it's available from Oracle University.  You can monitor this blog for pointers to the replay. And, you can find our archive of our past webcasts and training here. When will Oracle E-Business Suite 12.2 be released? Oracle's Revenue Recognition rules prohibit us from discussing certification and release dates, but you're welcome to monitor or subscribe to this blog. We'll post updates here as soon as soon as they're available.    

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• Silverlight Cream for February 21, 2011 -- #1049

  - by Dave Campbell

  In this Issue: Rob Eisenberg(-2-), Gill Cleeren, Colin Eberhardt, Alex van Beek, Ishai Hachlili, Ollie Riches, Kevin Dockx, WindowsPhoneGeek(-2-), Jesse Liberty(-2-), and John Papa. Above the Fold: Silverlight: "Silverlight 4: Creating useful base classes for your views and viewmodels with PRISM 4" Alex van Beek WP7: "Google Sky on Windows Phone 7" Colin Eberhardt Shoutouts: My friends at SilverlightShow have their top 5 for last week posted: SilverlightShow for Feb 14 - 20, 2011 From SilverlightCream.com: Rob Eisenberg MVVMs Us with Caliburn.Micro! Rob Eisenberg chats with Carl and Richard on .NET Rocks episode 638 about Caliburn.Micro which takes Convention-over-Configuration further, utilizing naming conventions to handle a large number of data binding, validation and other action-based characteristics in your app. Two Caliburn Releases in One Day! Rob Eisenberg also announced that release candidates for both Caliburn 2.0 and Caliburn.Micro 1.0 are now available. Check out the docs and get the bits. Getting ready for Microsoft Silverlight Exam 70-506 (Part 6) Gill Cleeren has Part 6 of his series on getting ready for the Silverlight Exam up at SilverlightShow.... this time out, Gill is discussing app startup, localization, and using resource dictionaries, just to name a few things. Google Sky on Windows Phone 7 Colin Eberhardt has a very cool WP7 app described where he's using Google Sky as the tile source for Bing Maps, and then has a list of 110 Messier Objects.. interesting astronomical objects that you can look at... all with source! Silverlight 4: Creating useful base classes for your views and viewmodels with PRISM 4 Alex van Beek has some Prism4/Unity MVVM goodness up with this discussion of a login module using View and ViewModel base classes. Windows Phone 7 and WCF REST – Authentication Solutions Ishai Hachlili sent me this link to his post about WCF REST web service and authentication for WP7, and he offers up 2 solutions... from the looks of this, I'm also putting his blog on my watch list WP7Contrib: Isolated Storage Cache Provider Ollie Riches has a complete explanation and code example of using the IsolatedStorageCacheProvider in their WP7Contrib library. Using a ChannelFactory in Silverlight, part two: binary cows & new-born calves Kevin Dockx follows-up his post on Channel Factories with this part 2, expanding the knowledge-base into usin parameters and custom binding with binary encoding, both from reader suggestions. All about UriMapping in WP7 WindowsPhoneGeek has a post up about URI mappings in WP7 ... what it is, how to enable it in code behind or XAML, then using it either with a hyperlink button or via the NavigationService class... all with code. Passing WP7 Memory Consumption requirements with the Coding4Fun MemoryCounter tool WindowsPhoneGeek's latest is a tutorial on the use of the Memory Counter control from the Coding4Fun toolkit and WP7 Memory consumption. Getting Started With Linq Jesse Liberty gets into LINQ in his Episode 33 of his WP7 'From Scratch' series... looks like a good LINQ starting point, and he's going to be doing a series on it. Linq with Objects In his second post on LINQ, Jesse Liberty is looking at creating a Linq query against a collection of objects... always good stuff, Jesse! Silverlight TV Silverlight TV 62: The Silverlight 5 Triad Unplugged John Papa is joined by Sam George, Larry Olson, and Vijay Devetha (the Silverlight Triad) on this Silverlight TV episode 62 to discuss how the team works together, and hey... they're hiring! Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Microsoft Build 2012 Day 1 Keynote Summary

  - by Tim Murphy

  So I have finally dried the tears after watching the Keynote for Build 2012.  This wasn’t because it was an emotional presentation, but because for the second year I missed the goodies.  Each on site attendee got a Surface RT, a Lumia 920 and a voucher for 100GB of SkyDrive storage. The event was opened with the announcement that in the three days since the launch of Windows 8 over 4 million upgrades have been sold.  I don’t care who you are that is an impressive stat.  Ballmer then spent a fair amount of time remaking the case for the Windows and Windows Phone platforms similar to what we have heard over the last to launch events. There were some cool, but non-essential demos.  The one that was the most fun was the Perceptive Pixel 82” slate device.  At first glance I wondered why I would ever want such a device, but then Ballmer explained it’s possible use for schools and boardrooms.  The actually made sense. Then things got strange.  Steve started explaining features that developers could leverage.  Usually this type of information is left to the product leads.  He focused on the integration with the Charms features such as Search and Share. Steve “Guggs” Guggenheim showed off an app that would appeal to my kids from Disney called “Agent P” which is base on Phineas and Ferb.  Then he got to the meat of the presentation.  We found out that you could add a tile that can be used to sell ad space.  In the same vein we also found out that you could use Microsoft’s, Paypal’s or any commerce engine of your own creation or choosing. For those who are interested in sports and especially developing sports apps you would have found the small presentation from Michael Bayle of ESPN.  He introduced the ESPN app which has tons of features.  For the developers in the crowd he also mentioned that ESPN has an API available at developer.espn.com. During the launch events we were told apps were coming.  In this presentation we were actually shown a scrolling list of logos and told about a couple of them.  Ballmer mentioned specifically Twitter, SAP and DropBox.  These are impressive names that were just a couple of the list impressive names. Steve Ballmer addressed the question of why you should develop for the Windows 8 platform.  He feels that Microsoft has the best commercial terms for developers, a better way to build apps than other platforms and a variety of form factors.  His key point though was the available volume of customers given the current Windows install base and assuming even a flat growth of the platform.  This he backed with a promise that Microsoft is going to do better at marketing and you won’t be able to avoid the ads that they are bringing out. The last section of the key note was present by Kevin Gallo from the Windows Phone team.  This was the real reason I tuned into the webcast.  He impressed upon those watching that the strength of developing for the Microsoft platform is the common programming model that now exist.  While there are difference between form factor implementations you can leverage code across them. He claimed that 90% of developer requests for Windows Phone 8 had been implemented.  These include: More controls with better performance Better live tiles including lock screen integration Speech support in custom apps Easier submission to the market place App camera integration VOIP and chat support Bluetooth and NFC support Native C++ development Direct 3D development   The quote from Kevin that stood out for me was that “Take your Dramamine and buckle your seatbelt type of games are coming to Windows Phone 8”.  He back this up by displaying a list of game development frameworks and then having Unity come out and do a demo. Ok, almost done … The last two things of note for me were the announcement that the SDK is immediately available at dev.windowsphone.com and that they were reducing the cost of an individual developer account to $8 for the next 8 days. Let the development commence. del.icio.us Tags: Build 2012,Windows 8,Windows Phone 8,Windows Phone

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• Submitting R jobs using PBS

  - by Tony

  I am submitting a job using qsub that runs parallelized R. My intention is to have R programme running on 4 different cores rather than 8 cores. Here are some of my settings in PBS file: #PBS -l nodes=1:ppn=4 .... time R --no-save < program1.R > program1.log I am issuing the command "ta job_id" and I'm seeing that 4 cores are listed. However, the job occupies a large amount of memory(31944900k used vs 32949628k total). If I were to use 8 cores, the jobs got hang due to memory limitation. top - 21:03:53 up 77 days, 11:54, 0 users, load average: 3.99, 3.75, 3.37 Tasks: 207 total, 5 running, 202 sleeping, 0 stopped, 0 zombie Cpu(s): 30.4%us, 1.6%sy, 0.0%ni, 66.8%id, 0.0%wa, 0.0%hi, 1.2%si, 0.0%st Mem: 32949628k total, 31944900k used, 1004728k free, 269812k buffers Swap: 2097136k total, 8360k used, 2088776k free, 6030856k cached Here is a snapshot when issuing command ta job_id PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1794 x 25 0 6247m 6.0g 1780 R 99.2 19.1 8:14.37 R 1795 x 25 0 6332m 6.1g 1780 R 99.2 19.4 8:14.37 R 1796 x 25 0 6242m 6.0g 1784 R 99.2 19.1 8:14.37 R 1797 x 25 0 6322m 6.1g 1780 R 99.2 19.4 8:14.33 R 1714 x 18 0 65932 1504 1248 S 0.0 0.0 0:00.00 bash 1761 x 18 0 63840 1244 1052 S 0.0 0.0 0:00.00 20016.hpc 1783 x 18 0 133m 7096 1128 S 0.0 0.0 0:00.00 python 1786 x 18 0 137m 46m 2688 S 0.0 0.1 0:02.06 R How can I prevent other users to use the other 4 cores? I like to mask somehow that my job is using 8 cores with 4 cores idling. Could anyone kindly help me out on this? Can this be solved using pbs? Many Thanks

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• Scheduling of tasks to a single resource using Prolog

  - by Reed Debaets

  I searched through here as best I could and though I found some relevant questions, I don't think they covered the question at hand: Assume a single resource and a known list of requests to schedule a task. Each request includes a start_after, start_by, expected_duration, and action. The goal is to schedule the tasks for execution as soon as possible while keeping each task scheduled between start_after and start_by. I coded up a simple prolog example that I "thought" should work but I've been unfortunately getting errors during run time: "=/2: Arguments are not sufficiently instantiated". Any help or advice would be greatly appreciated startAfter(1,0). startAfter(2,0). startAfter(3,0). startBy(1,100). startBy(2,500). startBy(3,300). duration(1,199). duration(2,199). duration(3,199). action(1,'noop1'). action(2,'noop2'). action(3,'noop3'). can_run(R,T) :- startAfter(R,TA),startBy(R,TB),T>=TA,T=<TB. conflicts(T,R1,T1) :- duration(R1,D1),T=<D1+T1,T>T1. schedule(R1,T1,R2,T2,R3,T3) :- can_run(R1,T1),\+conflicts(T1,R2,T2),\+conflicts(T1,R3,T3), can_run(R2,T2),\+conflicts(T2,R1,T1),\+conflicts(T2,R3,T3), can_run(R3,T3),\+conflicts(T3,R1,T1),\+conflicts(T3,R2,T2). % when traced I *should* see T1=0, T2=400, T3=200 Edit: conflicts goal wasn't quite right: needed extra TT1 clause. Edit: Apparently my schedule goal works if I supply valid Request,Time pairs ... but I'm stucking trying to force prolog to find valid values for T1..3 when given R1..3?

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• OpenVPN not connecting

  - by LandArch

  There have been a number of post similar to this, but none seem to satisfy my need. Plus I am a Ubuntu newbie. I followed this tutorial to completely set up OpenVPN on Ubuntu 12.04 server. Here is my server.conf file ################################################# # Sample OpenVPN 2.0 config file for # # multi-client server. # # # # This file is for the server side # # of a many-clients <-> one-server # # OpenVPN configuration. # # # # OpenVPN also supports # # single-machine <-> single-machine # # configurations (See the Examples page # # on the web site for more info). # # # # This config should work on Windows # # or Linux/BSD systems. Remember on # # Windows to quote pathnames and use # # double backslashes, e.g.: # # "C:\\Program Files\\OpenVPN\\config\\foo.key" # # # # Comments are preceded with '#' or ';' # ################################################# # Which local IP address should OpenVPN # listen on? (optional) local 192.168.13.8 # Which TCP/UDP port should OpenVPN listen on? # If you want to run multiple OpenVPN instances # on the same machine, use a different port # number for each one. You will need to # open up this port on your firewall. port 1194 # TCP or UDP server? proto tcp ;proto udp # "dev tun" will create a routed IP tunnel, # "dev tap" will create an ethernet tunnel. # Use "dev tap0" if you are ethernet bridging # and have precreated a tap0 virtual interface # and bridged it with your ethernet interface. # If you want to control access policies # over the VPN, you must create firewall # rules for the the TUN/TAP interface. # On non-Windows systems, you can give # an explicit unit number, such as tun0. # On Windows, use "dev-node" for this. # On most systems, the VPN will not function # unless you partially or fully disable # the firewall for the TUN/TAP interface. dev tap0 up "/etc/openvpn/up.sh br0" down "/etc/openvpn/down.sh br0" ;dev tun # Windows needs the TAP-Win32 adapter name # from the Network Connections panel if you # have more than one. On XP SP2 or higher, # you may need to selectively disable the # Windows firewall for the TAP adapter. # Non-Windows systems usually don't need this. ;dev-node MyTap # SSL/TLS root certificate (ca), certificate # (cert), and private key (key). Each client # and the server must have their own cert and # key file. The server and all clients will # use the same ca file. # # See the "easy-rsa" directory for a series # of scripts for generating RSA certificates # and private keys. Remember to use # a unique Common Name for the server # and each of the client certificates. # # Any X509 key management system can be used. # OpenVPN can also use a PKCS #12 formatted key file # (see "pkcs12" directive in man page). ca "/etc/openvpn/ca.crt" cert "/etc/openvpn/server.crt" key "/etc/openvpn/server.key" # This file should be kept secret # Diffie hellman parameters. # Generate your own with: # openssl dhparam -out dh1024.pem 1024 # Substitute 2048 for 1024 if you are using # 2048 bit keys. dh dh1024.pem # Configure server mode and supply a VPN subnet # for OpenVPN to draw client addresses from. # The server will take 10.8.0.1 for itself, # the rest will be made available to clients. # Each client will be able to reach the server # on 10.8.0.1. Comment this line out if you are # ethernet bridging. See the man page for more info. ;server 10.8.0.0 255.255.255.0 # Maintain a record of client <-> virtual IP address # associations in this file. If OpenVPN goes down or # is restarted, reconnecting clients can be assigned # the same virtual IP address from the pool that was # previously assigned. ifconfig-pool-persist ipp.txt # Configure server mode for ethernet bridging. # You must first use your OS's bridging capability # to bridge the TAP interface with the ethernet # NIC interface. Then you must manually set the # IP/netmask on the bridge interface, here we # assume 10.8.0.4/255.255.255.0. Finally we # must set aside an IP range in this subnet # (start=10.8.0.50 end=10.8.0.100) to allocate # to connecting clients. Leave this line commented # out unless you are ethernet bridging. server-bridge 192.168.13.101 255.255.255.0 192.168.13.105 192.168.13.200 # Configure server mode for ethernet bridging # using a DHCP-proxy, where clients talk # to the OpenVPN server-side DHCP server # to receive their IP address allocation # and DNS server addresses. You must first use # your OS's bridging capability to bridge the TAP # interface with the ethernet NIC interface. # Note: this mode only works on clients (such as # Windows), where the client-side TAP adapter is # bound to a DHCP client. ;server-bridge # Push routes to the client to allow it # to reach other private subnets behind # the server. Remember that these # private subnets will also need # to know to route the OpenVPN client # address pool (10.8.0.0/255.255.255.0) # back to the OpenVPN server. push "route 192.168.13.1 255.255.255.0" push "dhcp-option DNS 192.168.13.201" push "dhcp-option DOMAIN blahblah.dyndns-wiki.com" ;push "route 192.168.20.0 255.255.255.0" # To assign specific IP addresses to specific # clients or if a connecting client has a private # subnet behind it that should also have VPN access, # use the subdirectory "ccd" for client-specific # configuration files (see man page for more info). # EXAMPLE: Suppose the client # having the certificate common name "Thelonious" # also has a small subnet behind his connecting # machine, such as 192.168.40.128/255.255.255.248. # First, uncomment out these lines: ;client-config-dir ccd ;route 192.168.40.128 255.255.255.248 # Then create a file ccd/Thelonious with this line: # iroute 192.168.40.128 255.255.255.248 # This will allow Thelonious' private subnet to # access the VPN. This example will only work # if you are routing, not bridging, i.e. you are # using "dev tun" and "server" directives. # EXAMPLE: Suppose you want to give # Thelonious a fixed VPN IP address of 10.9.0.1. # First uncomment out these lines: ;client-config-dir ccd ;route 10.9.0.0 255.255.255.252 # Then add this line to ccd/Thelonious: # ifconfig-push 10.9.0.1 10.9.0.2 # Suppose that you want to enable different # firewall access policies for different groups # of clients. There are two methods: # (1) Run multiple OpenVPN daemons, one for each # group, and firewall the TUN/TAP interface # for each group/daemon appropriately. # (2) (Advanced) Create a script to dynamically # modify the firewall in response to access # from different clients. See man # page for more info on learn-address script. ;learn-address ./script # If enabled, this directive will configure # all clients to redirect their default # network gateway through the VPN, causing # all IP traffic such as web browsing and # and DNS lookups to go through the VPN # (The OpenVPN server machine may need to NAT # or bridge the TUN/TAP interface to the internet # in order for this to work properly). ;push "redirect-gateway def1 bypass-dhcp" # Certain Windows-specific network settings # can be pushed to clients, such as DNS # or WINS server addresses. CAVEAT: # http://openvpn.net/faq.html#dhcpcaveats # The addresses below refer to the public # DNS servers provided by opendns.com. ;push "dhcp-option DNS 208.67.222.222" ;push "dhcp-option DNS 208.67.220.220" # Uncomment this directive to allow different # clients to be able to "see" each other. # By default, clients will only see the server. # To force clients to only see the server, you # will also need to appropriately firewall the # server's TUN/TAP interface. ;client-to-client # Uncomment this directive if multiple clients # might connect with the same certificate/key # files or common names. This is recommended # only for testing purposes. For production use, # each client should have its own certificate/key # pair. # # IF YOU HAVE NOT GENERATED INDIVIDUAL # CERTIFICATE/KEY PAIRS FOR EACH CLIENT, # EACH HAVING ITS OWN UNIQUE "COMMON NAME", # UNCOMMENT THIS LINE OUT. ;duplicate-cn # The keepalive directive causes ping-like # messages to be sent back and forth over # the link so that each side knows when # the other side has gone down. # Ping every 10 seconds, assume that remote # peer is down if no ping received during # a 120 second time period. keepalive 10 120 # For extra security beyond that provided # by SSL/TLS, create an "HMAC firewall" # to help block DoS attacks and UDP port flooding. # # Generate with: # openvpn --genkey --secret ta.key # # The server and each client must have # a copy of this key. # The second parameter should be '0' # on the server and '1' on the clients. ;tls-auth ta.key 0 # This file is secret # Select a cryptographic cipher. # This config item must be copied to # the client config file as well. ;cipher BF-CBC # Blowfish (default) ;cipher AES-128-CBC # AES ;cipher DES-EDE3-CBC # Triple-DES # Enable compression on the VPN link. # If you enable it here, you must also # enable it in the client config file. comp-lzo # The maximum number of concurrently connected # clients we want to allow. ;max-clients 100 # It's a good idea to reduce the OpenVPN # daemon's privileges after initialization. # # You can uncomment this out on # non-Windows systems. user nobody group nogroup # The persist options will try to avoid # accessing certain resources on restart # that may no longer be accessible because # of the privilege downgrade. persist-key persist-tun # Output a short status file showing # current connections, truncated # and rewritten every minute. status openvpn-status.log # By default, log messages will go to the syslog (or # on Windows, if running as a service, they will go to # the "\Program Files\OpenVPN\log" directory). # Use log or log-append to override this default. # "log" will truncate the log file on OpenVPN startup, # while "log-append" will append to it. Use one # or the other (but not both). ;log openvpn.log ;log-append openvpn.log # Set the appropriate level of log # file verbosity. # # 0 is silent, except for fatal errors # 4 is reasonable for general usage # 5 and 6 can help to debug connection problems # 9 is extremely verbose verb 3 # Silence repeating messages. At most 20 # sequential messages of the same message # category will be output to the log. ;mute 20 I am using Windows 7 as the Client and set that up accordingly using the OpenVPN GUI. That conf file is as follows: ############################################## # Sample client-side OpenVPN 2.0 config file # # for connecting to multi-client server. # # # # This configuration can be used by multiple # # clients, however each client should have # # its own cert and key files. # # # # On Windows, you might want to rename this # # file so it has a .ovpn extension # ############################################## # Specify that we are a client and that we # will be pulling certain config file directives # from the server. client # Use the same setting as you are using on # the server. # On most systems, the VPN will not function # unless you partially or fully disable # the firewall for the TUN/TAP interface. dev tap0 up "/etc/openvpn/up.sh br0" down "/etc/openvpn/down.sh br0" ;dev tun # Windows needs the TAP-Win32 adapter name # from the Network Connections panel # if you have more than one. On XP SP2, # you may need to disable the firewall # for the TAP adapter. ;dev-node MyTap # Are we connecting to a TCP or # UDP server? Use the same setting as # on the server. proto tcp ;proto udp # The hostname/IP and port of the server. # You can have multiple remote entries # to load balance between the servers. blahblah.dyndns-wiki.com 1194 ;remote my-server-2 1194 # Choose a random host from the remote # list for load-balancing. Otherwise # try hosts in the order specified. ;remote-random # Keep trying indefinitely to resolve the # host name of the OpenVPN server. Very useful # on machines which are not permanently connected # to the internet such as laptops. resolv-retry infinite # Most clients don't need to bind to # a specific local port number. nobind # Downgrade privileges after initialization (non-Windows only) user nobody group nobody # Try to preserve some state across restarts. persist-key persist-tun # If you are connecting through an # HTTP proxy to reach the actual OpenVPN # server, put the proxy server/IP and # port number here. See the man page # if your proxy server requires # authentication. ;http-proxy-retry # retry on connection failures ;http-proxy [proxy server] [proxy port #] # Wireless networks often produce a lot # of duplicate packets. Set this flag # to silence duplicate packet warnings. ;mute-replay-warnings # SSL/TLS parms. # See the server config file for more # description. It's best to use # a separate .crt/.key file pair # for each client. A single ca # file can be used for all clients. ca "C:\\Program Files\OpenVPN\config\\ca.crt" cert "C:\\Program Files\OpenVPN\config\\ChadMWade-THINK.crt" key "C:\\Program Files\OpenVPN\config\\ChadMWade-THINK.key" # Verify server certificate by checking # that the certicate has the nsCertType # field set to "server". This is an # important precaution to protect against # a potential attack discussed here: # http://openvpn.net/howto.html#mitm # # To use this feature, you will need to generate # your server certificates with the nsCertType # field set to "server". The build-key-server # script in the easy-rsa folder will do this. ns-cert-type server # If a tls-auth key is used on the server # then every client must also have the key. ;tls-auth ta.key 1 # Select a cryptographic cipher. # If the cipher option is used on the server # then you must also specify it here. ;cipher x # Enable compression on the VPN link. # Don't enable this unless it is also # enabled in the server config file. comp-lzo # Set log file verbosity. verb 3 # Silence repeating messages ;mute 20 Not sure whats left to do.

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• SQL Server 2008 - "Enhanced read-ahead and scan"?

  - by Chris J

  Hi all, Can anyone point me to, or does anyone know what this "feature" of SQL Server is? Googling for it (also for "Super scan" which seems to be a synonym for the feature) reveals no information other than all the edition comparison pages that exist out there for SQL Server. I'm also not sure whether this is a stackoverflow or a serverfault question. I'll try here on serverfault first, but if folk think stackoverflow may be a better forum, drop me a comment to that effect - ta :-)

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• Using OpenVPN, yet netflix.com blocks access

  - by user837848

  I have set up an OpenVPN server on a VPS in the USA and configured it to route all clients traffic through it. Everything seems to work fine regarding the VPN connection in gerneral. All ip lookup sites show me the us server's ip address and even hulu.com works(it won't work if you are not in the usa). But for some reason netflix.com says "Sorry, Netflix is not available in your country yet.". So I thought that netflix probably uses some more sophisticated ways to determine your location beyond just your ip address. But I could not find a way to get it to work until I dropped the idea of using a VPN and instead connected to the server via a simple socks tunnel with ssh by running: ssh -D 9999 user@serverip All I had to do was changing the key network.proxy.socks_remote_dns in Firefox from false to true to prevent DNS leaks and setting up the socks proxy. Then I could finally watch netflix.com. As a result I concluded that there is nothing in the browser(or something like system timezone) that tells netflix the location, so it has to have something to do with the OpenVPN config. After that I used tcpdump to log all the traffic on the server's network interface venet0 (OpenVZ VPS), visited netflix.com on the client while first connected to the VPN and then connected via socks tunnel and afterwards compared both outputs. The only thing that caught my eye was that while using the socks tunnel the server mainly used ipv6 to connect to netflix whereas it only used ipv4 when the client was connected to the OpenVPN server. But I don't get how that could make such a difference. So what am I missing? Is there a way to configure OpenVPN to also use ipv6 to connect to a website although there is only an ipv4 connection between the VPS and the client? Here is the server.conf of the OpenVPN server (OpenVZ VPS) local serverip port 443 proto tcp dev tun ca ./easy-rsa2/keys/ca.crt cert ./easy-rsa2/keys/vps1.crt key ./easy-rsa2/keys/vps1.key # This file should be kept secret dh ./easy-rsa2/keys/dh1024.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt push "redirect-gateway def1 bypass-dhcp" push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4" client-to-client keepalive 10 120 tls-auth ta.key 0 # This file is secret cipher AES-256-CBC comp-lzo max-clients 4 user nobody group nogroup persist-key persist-tun status openvpn-status.log log-append openvpn.log verb 3 iptables forwarding iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o venet0 -j SNAT --to-source serverip (enabled ipv4 forwarding) I have tried everything always on a Win7 and a Debian client with only ipv4 connections and always made sure that they use the correct DNS server (tested with ipleak.net and tcpdump / wireshark). client.conf: client dev tun proto tcp remote serverip 443 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert client.crt key client.key ns-cert-type server tls-auth ta.key 1 cipher AES-256-CBC comb-lzo verb 3

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• How to route certain applications through a VPN and others to use my 'standard' connection in OSX 10.6?

  - by Alfie

  I am currently working abroad and use my company's VPN for FTP and some browsing. This is a relatively slow connection and while it is suitable for those VPN necessities; much of my other internet usage can be done without the VPN at a much higher speed. Is there a way to tell Safari and my FTP software to use the VPN and for all other connections to go directly to the internet. I am currently using OSX's Network Prefs for running my VPN connection. Ta

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• OpenVPN bridged not pinging beyond openvpn server on Ubuntu/Windows 2003

  - by ani

  I set up an OpenVPN server using Ubuntu and a windows server 2003 client to interconnect two networks between two different offices. They can now ping each other, but the rest of the network cannot be contacted by the windows client. Office 1 has internal network of: 192.168.0.0 255.255.240.0 Office 2 has internal network of: 192.168.16.0 255.255.255.0 And the configuration files are: Server.conf port 1194 --script-security 2 up "/etc/openvpn/up.sh br0" down "/etc/openvpn/down.sh br0" # TCP or UDP server? ;proto tcp proto udp dev tap0 ;dev tun ca ca.crt cert openvpn.crt key openvpn.key dh dh1024.pem ifconfig-pool-persist ipp.txt server-bridge 192.168.0.59 255.255.240.0 192.168.6.72 192.168.6.75 push "route 192.168.0.0 255.255.240.0" push "dhcp-option DNS 192.168.0.2" push "dhcp-option DOMAIN testeers.local" keepalive 10 120 tls-auth ta.key 0 # This file is secret comp-lzo user nobody group nogroup persist-key persist-tun log /var/log/openvpn/openvpn.log status /var/log/openvpn-status.log verb 3 Client Config file client dev tap ;dev tun --script-security 2 ;proto tcp proto udp remote 1xx.2xx.xxx.124 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert admin-VAIO.crt key admin-VAIO.key ns-cert-type server tls-auth ta.key 1 comp-lzo verb 3 Ifconfig on the server now shows the following: br0 Link encap:Ethernet HWaddr 00:50:56:8b:1a:49 inet addr:192.168.0.59 Bcast:192.168.15.255 Mask:255.255.240.0 inet6 addr: fe80::250:56ff:fe8b:1a49/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1081860 errors:0 dropped:1358 overruns:0 frame:0 TX packets:242385 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:76600615 (76.6 MB) TX bytes:64474575 (64.4 MB) eth0 Link encap:Ethernet HWaddr 00:50:56:8b:1a:49 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:1144125 errors:0 dropped:7172 overruns:0 frame:0 TX packets:252486 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:109893729 (109.8 MB) TX bytes:66372620 (66.3 MB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:67865 errors:0 dropped:0 overruns:0 frame:0 TX packets:67865 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:5183276 (5.1 MB) TX bytes:5183276 (5.1 MB) tap0 Link encap:Ethernet HWaddr 32:4f:42:11:b7:c5 inet6 addr: fe80::304f:42ff:fe11:b7c5/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:3329 errors:0 dropped:0 overruns:0 frame:0 TX packets:215472 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:373205 (373.2 KB) TX bytes:17465832 (17.4 MB)

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• V MAX Anyone..Need to learn administrating VMAX

  - by kevinmika

  Hello All, This is going to be my first post here. I 'm working as an Administrator at SNI. I have been responsible for managing Celerra and Clariion,but this new environment has 2 VMAX boxes . Since, I don't have prior experience is managing symmetrix ,i am kinda stuck here ( no training as well) Can some body suggest me a proper link where i can learn the basics as well as the administrative part of V MAX. Thanks in advance for your help! Kevin

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• Show the Description of backup set when restoring a database.

  - by NitroxDM

  Is there a way to show the description of ta back up set in SSMS? When you do a back up there is a Description text box. But as far as I can tell there is no way to show the description before you restore from the back up set. Am I missing something simple?

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• Show the Description of backup set when restoring a database.

  - by NitroxDM

  Is there a way to show the description of ta back up set in SSMS? When you do a back up there is a Description text box. But as far as I can tell there is no way to show the description before you restore from the back up set. Am I missing something simple?

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• Front panel audio replacement

  - by develroot

  I have experienced some problems with my headphones and it turned out the front 3.5mm audio jack is defective..and it doesn't make a good contact. I can't replace the jack because it's built-in. I am wondering if there are such things as "modular" Front panels to be inserted into the available external 3.5" bay and, of course, to support (natively, internal connector) Realtek HD Audio. (my case is Asus TA-K5, but I guess it doesn't make any difference)

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• Rails: Need a helping hand to finish this Jquery/Ajax problem.

  - by DJTripleThreat

  Here's my problem: I have a combo box that when its index changes I want a div tag with the id="services" to repopulate with checkboxes based on that comboboxes value. I want this to be done using ajax. This is my first time working with ajax for rails so I need a helping hand. Here is what I have so far: My application.js file. Something that Ryan uses in one of his railscasts. This is supposed to be a helper method for handling ajax requests. Is this useful? Should I be using this?: //<![CDATA[ $.ajaxSetup({ 'beforeSend': function(xhr) {xhr.setRequestHeader("Accept","text/javascript")} }); // This function doesn't return any results. How might I change that? Or // should I have another function to do that? $.fn.submitWithAjax = function() { this.submit(function() { $.post($(this).attr("action"), $(this).serialize(), null, "script"); return true; }); }; //]]> An external javascript file for this template (/public/javascripts/combo_box.js): //<![CDATA[ $(document).ready(function(){ $('#event_service_time_allotment').change(function () { // maybe I should be using submitWithAjax(); ?? $(this).parent().submit(); }); }); //]]> My ???.js.erb file. I'm not sure where this file should go. Should I make an ajax controller?? Someone help me out with that part please. I can write this code no problem, I just need to know where it should go and what the file name should be called (best practices etc): // new.js.erb: dynamic choices... expecting a time_allotment alert('test'); // TODO: Return a json object or something with a result set of services // I should be expecting something like: // params[:event_service][:time_allotment] i think which I should use // to return a json object (??) to be parsed or rendered html // for the div#services. Here is my controller's new action. Am I supposed to respond to javascript here? Should I make an ajax controller instead? What's the best way to do this?: # /app/controllers/event_services_controller.rb def new @event_service = EventService.new respond_to do |format| format.html # new.html.erb format.xml { render :xml => @event_service } format.js # should I have a javascript handler here? i'm lost! end end My /app/views/event_service/new.html.erb. My ajax call I think should be a different action then the form: <% content_for :head do %> <%= javascript_include_tag '/javascripts/combo_box.js' %> <% end %> <% form_for @event_service, :url => admin_events_path, :html => {:method => :post} do |f| %> <!-- TimeAllotment is a tabless model which is why this is done like so... --> <!-- This select produces an id of: "event_service_time_allotment" and a name of: "event_service[time_allotment]" --> <%= select("event_service", "time_allotment", TimeAllotment.all.collect {|ta| [ta.title, ta.value]}, {:prompt => true}) %> Services: <!-- this div right here needs to be repopulated when the above select changes. --> <div id="services"> <% for service_type in ServiceType.all %> <div> <%= check_box_tag "event_service[service_type_ids][]", service_type.id, false %> <%=h service_type.title %> </div> <% end %> </div> <% end %> ok so right now ALL of the services are there to be chosen from. I want them to change based on what is selected in the combobox event_service_time_allotment. Thanks, I know this is super complicated so any helpful answers will get an upvote.

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• Bash: command not found

  - by Alexandre Teles

  I have a script that needs to know the processor architecture. I'm doing this way: if [["$(uname -m)" = "x86_64"]]; then wget https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm else echo "Nossa! Você só pode usar 3,5GB de memória RAM. Que triste :( Vou baixar a versão 32bits pra você tá?" wget https://dl.google.com/linux/direct/google-chrome-stable_current_i386.rpm fi But when I execute the code, I receive: instala_chrome.sh: line 35: [[x86_64: command not found Anyone can help me to solve this? Thanks!

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• Oracle and ATG: The Next Generation of Customer Experience

  - by divya.malik

  Oracle today announced that it has completed the acquisition of Art Technology Group (ATG), Inc. In a webcast this morning, Thomas Kurian, Executive Vice President, Oracle Anthony Lye, Senior Vice President, CRM at Oracle and  Ken Volpe, Senior Vice President of Products and Technology from ATG, presented the rationale, strategy and future direction with this acquisition, ATG is a leading E-Commerce service provider and Oracle is a leading CRM and Retail Applications provider, which makes it a winning team. There has been a lot of positive feedback from the analysts, press as well as customers. “As a customer of both Oracle and ATG, we view the integration of the two companies as a natural fit,” said Kevin Cunnington, Global Head of Online, Vodafone Group. “We look forward to new efficiencies that address our online and cross-channel business strategies and help us further provide superior customer experiences.” For more information about Oracle and ATG: Overiew and FAQs Webcast Press Release Technorati Tags: oracle,oracle siebel crm,atg,crm

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• Microsoft announces Tech.Ed India in Bengaluru on April 12-14 2010

  Hi, if you too are a Developer, IT professional, Decision-maker, Designer, Solution Architect, Technology Manager or a Student, this will definitely excite you. Microsoft is back this year with the Indian edition of Tech.Ed, it's global education & networking conference for technology professionals. Expect to run into S. Somasegar (Sr. VP, Microsoft Developer Division), Kevin J. Smith (Senior Director, Intel), Stephen Forte (Chief Strategy Officer, Telerik) and other technology stalwarts....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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• #AJIReport 16 | Jason Bock on Windows Runtime and Metaprogramming

  - by Jeff Julian

  This episode we sit down with Jason Bock to talk about Windows Runtime and his upcoming book on Metaprogramming. Jason has been a consultant at Magenic for the past 11 years. In this show, Jason walks us through how to get started with Windows RT and talks about what the experience is like deploying to the Windows Store. We get into the new frontier of device development and the restrictions that are in place to protect the users and other applications. Towards the end of the show we start talking about Jason's book on Metaprogramming that he is co-authoring with Kevin Hazard. Listen to the Show Site: http://www.jasonbock.net/ Book: Metaprogramming in .NET Twitter: @JasonBock

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• Google I/O 2010 - Fireside chat with the App Engine team

  Google I/O 2010 - Fireside chat with the App Engine team Google I/O 2010 - Fireside chat with the App Engine team Fireside Chats, App Engine Sean Lynch, Kevin Gibbs, Don Schwarz, Matthew Blain, Guido van Rossum, Max Ross, Brett Slatkin It's been an busy year for the App Engine team with lots of new features and lots of new developers. Come tell us about what you've loved and what still bugs you. With several members of the App Engine team on deck, you'll get the answers to your questions straight from the source. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 6 0 ratings Time: 57:59 More in Science & Technology

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• Banned Children’s Toys from Christmases Past

  - by Jason Fitzpatrick

  What could possibly go wrong giving a child a nuclear science kit that includes highly poisonous materials inside? Everything of course, which is why that particular toy only lasted a single holiday. Buzzfeed reports on some of the toys of holidays past that were quickly pulled off the shelves. In regard to the nuclear kit pictured here, they write: Only available from 1951–1952, this science kit for CHILDREN included four types of uranium ore, a Geiger counter, a comic called Dagwood Spits the Atom, and a coupon for ordering MORE radioactive materials. One of the four uranium ores included was Po-210 (Polonium) which, by mass, is 250,000 times more toxic than hydrogen cyanide. “Merry Christmas, Kevin, here’s that giant box of poison you asked for.” Hit up the link below for more entries, including some pulled from the shelves as recently as 2007. 8 Banned Children’s Toys From Yesteryear [BuzzFeed] Our Geek Trivia App for Windows 8 is Now Available Everywhere How To Boot Your Android Phone or Tablet Into Safe Mode HTG Explains: Does Your Android Phone Need an Antivirus?

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• Sun2Oracle: Hub City Media Webcast Reminder - Thursday, September 13, 2012

  - by Darin Pendergraft

  Our Sun2Oracle webcast featuring Steve Giovanetti from Hub City Media is this Thursday, September 13th at 10:00 am PST.  If you haven't registered yet, there is still time: Register Here. Scott Bonell, Sr. Director of Product Management will be talking to Steve about their recent project to upgrade a large University from Sun DSEE Directory to Oracle Unified Directory.  Scott and Steve will talk through details of the project, from planning through implementation. In addition to this webcast, Steve Giovanetti will also be participating in two sessions at Oracle OpenWorld 2012: CON9465 - Next-Generation Directory: Oracle Unified Directory  Etienne Remillon, Principal Product Manager, Oracle  Steve Giovanetti, CTO Hub City Media  Warren Leung, Sr. Architect, UCLA  Tuesday, Oct 2, 5:00 PM – 6:00 PM  Moscone West – 3008 CON5749 - Solutions for Migration of Oracle Waveset to Oracle Identity Manager Steve Giovanetti, CTO Hub City Media Kevin Moulton, Senior Sales Consulting  Manager, Oracle Thursday, Oct 4, 11:15 AM - 12:15 PM Moscone West - 3008

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• Microsoft Generation 4 Datacenter using ITPACs

  - by Eric Nelson

  Microsoft is continuing to make significant investments in Datacenter technology and is focused on solving issues such as long lead times, significant up-front costs and over capacity. Enter the world of modular Datacenters and ITPACs – IT Pre-Assembled Components. In simple terms – air handling and IT units which are pre-assembled (looking somewhat like a container) and then installed on concrete bases. Each unit can hold  between 400 and 2500 servers (which means many more virtual machines depending on your density) Kevin Timmons’, manager of the datacenter operations team, just posted a great post digging into the detail One Small Step for Microsoft’s Cloud, Another Big Step for Sustainability which includes a short video on how we build one of these ITPACs. You might also want to check out this video from the PDC:

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