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• Adidas by Jeremy Scott is the famous ‘wings’

  - by WoolrichParka

  The higher on this design activities the United states banner layover all over the shoes with red lines on one remaining feet and Adidas by Jeremy Scott the famous 5 celebrity agreement in white-colored and red on the other feet.Out of the many couples of JS Pizza 2.0 silhouettes we’ve gotten a look at, one of the more latest and awesome couples features a glow-in-the-dark higher.One of those Adidas Wing Shoes comes with opera create and bone fragments along the shoelaces place.Expect these to fall this fall, along with more from this years’ selection.wufengfengmaple36

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• VirtualBox guest responds to ping but all ports closed in nmap

  - by jeremyjjbrown

  I want to setup a test database on a vm for development purposes but I cannot connect to the server via the network. I've got Ubuntu 12.04vm installed on 12.04 host in Virtualbox 4.2.4 set to - Bridged network mode - Promiscuous Allow All When I try to ping the virtual guest from any network client I get the expected result. PING 192.168.1.209 (192.168.1.209) 56(84) bytes of data. 64 bytes from 192.168.1.209: icmp_req=1 ttl=64 time=0.427 ms ... Internet access inside the vm is normal But when I nmap it I get nothin! jeremy@bangkok:~$ nmap -sV -p 1-65535 192.168.1.209 Starting Nmap 5.21 ( http://nmap.org ) at 2012-11-15 18:39 CST Nmap scan report for jeremy (192.168.1.209) Host is up (0.0032s latency). All 65535 scanned ports on jeremy (192.168.1.209) are closed Service detection performed. Please report any incorrect results at http://nmap.org/submit/ Nmap done: 1 IP address (1 host up) scanned in 0.88 seconds ufw and iptables on VM... jeremy@jeremy:~$ sudo service ufw stop [sudo] password for jeremy: ufw stop/waiting jeremy@jeremy:~$ sudo iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I have scanned around and have no reason to believe that my router is blocking internal ports. jeremy@bangkok:~$ nmap -v 192.168.1.2 Starting Nmap 5.21 ( http://nmap.org ) at 2012-11-15 18:44 CST Initiating Ping Scan at 18:44 Scanning 192.168.1.2 [2 ports] Completed Ping Scan at 18:44, 0.00s elapsed (1 total hosts) Initiating Parallel DNS resolution of 1 host. at 18:44 Completed Parallel DNS resolution of 1 host. at 18:44, 0.03s elapsed Initiating Connect Scan at 18:44 Scanning 192.168.1.2 [1000 ports] Discovered open port 445/tcp on 192.168.1.2 Discovered open port 139/tcp on 192.168.1.2 Discovered open port 3306/tcp on 192.168.1.2 Discovered open port 80/tcp on 192.168.1.2 Discovered open port 111/tcp on 192.168.1.2 Discovered open port 53/tcp on 192.168.1.2 Discovered open port 5902/tcp on 192.168.1.2 Discovered open port 8090/tcp on 192.168.1.2 Discovered open port 6881/tcp on 192.168.1.2 Completed Connect Scan at 18:44, 0.02s elapsed (1000 total ports) Nmap scan report for 192.168.1.2 Host is up (0.0017s latency). Not shown: 991 closed ports PORT STATE SERVICE 53/tcp open domain 80/tcp open http 111/tcp open rpcbind 139/tcp open netbios-ssn 445/tcp open microsoft-ds 3306/tcp open mysql 5902/tcp open vnc-2 6881/tcp open bittorrent-tracker 8090/tcp open unknown Read data files from: /usr/share/nmap Nmap done: 1 IP address (1 host up) scanned in 0.08 seconds Answer... Turns out all of the ports were open to the network. I installed open ssh and confirmed it. Then I edited my db conf to listen to external IP's and all was well.

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• Access Control Lists in Debian Lenny

  - by arbales

  So, for my clients to who have sites hosted on my server, I create user accounts, with standard home folders inside /home. I setup an SSH jail for all the collective users, because I really am against using a separate FTP server. Then, I installed ACL and added acl to my /etc/fstab — all good. I cd into /home and chmod 700 ./*. At this point users cannot see into other users home directories (yay), but apache can't see them either (boo) . I ran setfacl u:www-data:rx ./*. I also tried individual directories. Now apache can see the sites again, but so can all the users. ACL changed the permissions of the home folders to 750. How do I setup ACL's so that Apache can see the sites hosted in user's home folders AND 2. Users can't see outside their home and into others' files. Edit: more details: Output after chmod -R 700 ./* sh-3.2# chmod 700 ./* sh-3.2# ls -l total 72 drwx------+ 24 austin austin 4096 Jul 31 06:13 austin drwx------+ 8 jeremy collective 4096 Aug 3 03:22 jeremy drwx------+ 12 josh collective 4096 Jul 26 02:40 josh drwx------+ 8 joyce collective 4096 Jun 30 06:32 joyce (Not accessible to others users OR apache) setfacl -m u:www-data:rx jeremy (Now accessible to members apache and collective — why collective, too?) sh-3.2# getfacl jeremy # file: jeremy # owner: jeremy # group: collective user::rwx user:www-data:r-x group::r-x mask::r-x other::--- Solution Ultimately what I did was: chmod 755 * setfacl -R -m g::--- * setfacl -R -m u:www-data:rx *

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• Silverlight Cream for March 10, 2010 -- #810

  - by Dave Campbell

  In this Issue: Andrea Boschin, Jeremy Likness(-2-), Andrew Veresov, Nokola, SilverLaw, Gill Cleeren, Jim Wightman and Jeremy Likness, Viktor Larsson(-2-), and Walter Ferrari. Shoutouts: Viktor Larsson has a post up about Silverlight Market Penetration ... hope to meet you at MIX10, Viktor! Gergely Orosz has posted the Slides and code for the presentation “An Introduction to Silverlight” It appears that if I miss a day, I can pretty much do an all-submittal post :) From SilverlightCream.com: Writing an AsyncLoader to enqueue long running operations Andrea Boschin has a tutorial on SilverlightShow where he's building up an asynch service to deal with a long-running app on the server. MVVM with MEF in Silverlight: Video Tutorial Jeremy Likness has a video tutorial up for helping beginners wire up MVVM and MEF to Silverlight. Source code for the app in the video is downloadable. MVVM with MEF in Silverlight Video Tutorial Part 2: Plugins and Metadata In part 2, Jeremy Likness redesigns the app using metadata to turn the shapes into objects, and then show how easy it is to add a new plugin... and the source for the app is downloadable. Binding a Converter Parameter Andrew Veresov has a nice code-filled solution up for those times that you need to bind a ConverterParameter value. EasyPainter: Lion Hair styling Nokola has not been idle with Easy Painter... now he's added "Lion Hair" to the list of stylings you can apply... guess if you want to change someone's 'mane' ... sorry! Twisting Navigation - Silverlight 3 SilverLaw has another control up - a "Twisting Navigation" control... very cool :) ... and since I'm behind the curve, he already has an update in the Expression Gallery as noted in his post, and a video tutorial on implementing it in an application... and if you understand German, turn up the sound :) Uploading and downloading images using a WCF service with Silverlight Gill Cleeren has a tutorial up at SilverlightShow on uploading and downloading images using WCF Services in Silverlight New Windows Phone 7 Community Developer Hub Jim Wightman and Jeremy Likness have a very cool Silverlight page up where you can paste the URL of your XAP in and have it display in a "Windows 7 Series Phone" ... and that's all I'm saying about that. XAML Transformation 101 Viktor Larsson is discussing Transforms in XAML and has a nice tutorial up that is easily the beginning of a carousel... you may also want to check out his other posts... I'm adding him to my list. Silverlight 4 Webcam Demo In this post, Viktor Larsson has a tutorial up for using the WebCam. This is from a beginner perspective, so if you haven't jumped in, now's a good time. How to extend Bing Maps Silverlight with an elevation profile graph - Part 1 Walter Ferrari has a post up at SilverlightShow discussing extensions to BingMaps such as creating routes using GeoCoding and Route Services plus drawing lines on the maps and getting coordinates of the points. 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    MIX10

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• named groups splitting regardless of position of match

  - by jeremy

  Having a hard time explaining what I mean, so here is what I want to do I want any sentenced to be parsed along the pattern of text #something a few words [someothertext] for this, the matching sentence would be Jeremy is trying #20 times to [understand this] And I would name 4 groups, as text, time, who, subtitle However, I could also write #20 Jeremy is trying [understand this] times to and still get the tokens #20 Jeremy is trying times to understand this corresponding to the right groups As long as the delimited tokens can separate the 2 text only tokens, I'm fine. Is this even possible? I've tried a few regex's and failed miserably (am still experimenting but finding myself spending way too much time learning it)

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• Sendmail Sends but never Delivers

  - by Jeremy

  I have tried 10 different emails hosted at Google, Yahoo!, GoDaddy, and some that are privately hosted, and each time I get the following errors. I have blocked sensitive information, but you will be able to see the errors. Feb 16 17:06:50 xxxxx sendmail[31824]: o1GM6ovJ031824: [email protected], ctladdr=www-data (33/33), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30054, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (o1GM6oJo031825 Message accepted for delivery) Feb 16 16:54:19 xxxxx sendmail[31625]: o1GLsJPP031625: [email protected], ctladdr=www-data (33/33), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30097, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (o1GLsJah031626 Message accepted for delivery) Feb 17 09:05:52 xxxxx sm-mta[10620]: o1H6Z3jM005734: to=<[email protected]>, ctladdr=<[email protected]> (33/33), delay=07:30:49, xdelay=01:15:36, mailer=esmtp, pri=571331, relay=aspmx3.googlemail.com. [209.85.222.4], dsn=4.0.0, stat=Deferred: Connection timed out with aspmx3.googlemail.com. Feb 17 10:35:23 xxxxx sm-mta[12828]: o1HEZwn8011833: to=<[email protected]>, ctladdr=<[email protected]> (33/33), delay=00:59:25, xdelay=00:12:36, mailer=esmtp, pri=300353, relay=aln-mailrelay.att.net. [12.102.252.75], dsn=4.0.0, stat=Deferred: Connection timed out with aln-mailrelay.att.net. If you take a look, they all send, but then (HOURS later) I get an error "stat=Deferred: Connection timed out with {server}". I'm at my wits end, because I use this same setup on each of my servers, and they all work.

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• No rails commands will run

  - by Jeremy

  I am trying to learn rails and haven't used it in the last few weeks but today when I try to run any rails commands such as - 'rails -v' - 'script/server' I get not have reinstalled ruby but the didn't don't have a clue what could be wrong Am on a brand new Macbook Pro Jeremy-Geross-MacBook-Pro:~ Jeremy$ rails -v /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in merge': can't convert String into Hash (TypeError) from /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:ininitialize' from /Library/Ruby/Site/1.8/rubygems.rb:384:in new' from /Library/Ruby/Site/1.8/rubygems.rb:384:inconfiguration' from /Library/Ruby/Site/1.8/rubygems.rb:634:in path' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:68:ininstalled_spec_directories' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:58:in from_installed_gems' from /Library/Ruby/Site/1.8/rubygems.rb:881:insource_index' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:81:in init_gemspecs' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:13:ininitialize' from /Library/Ruby/Site/1.8/rubygems.rb:839:in new' from /Library/Ruby/Site/1.8/rubygems.rb:839:insearcher' from /Library/Ruby/Site/1.8/rubygems.rb:838:in synchronize' from /Library/Ruby/Site/1.8/rubygems.rb:838:insearcher' from /Library/Ruby/Site/1.8/rubygems.rb:478:in find_files' from /Library/Ruby/Site/1.8/rubygems.rb:1103 from /usr/bin/rails:9:inrequire' from /usr/bin/rails:9

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• sIFR 3 HTML text does not display, .sIFR-alternate causing problem

  - by Jeremy Schultz

  It seems my sIFR 3 text does not show HTML text if the Flash text is not displayed. Here's one of the pages in question: http://www.jeremyschultz.com/client/orchardplace/website/beta/volunteer/ One person has reported not seeing anything when viewing this page, and I can recreate it by removing the Flash text with Firebug. Testing with Firebug also suggests the .sIFR-alternate class is what's causing this: when I remove it, the text shows up, and it disappears again when I restore it. I copied the original CSS and also tried applying a few new CSS rules to .sIFR-alternate but nothing has solved it. What do you think? Jeremy [email protected]

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• Seamless Mode Not Working Correctly in Virtual Box

  - by Jeremy

  I run Ubuntu Desktop in a VirtualBox seamless mode, hosted on Windows 7. I recently upgraded from 11.10 to 12.04 and seamless mode no longer works correctly. I have re-installed guest extensions. The problem is that the Ubuntu desktop wallpaper is shown, effectively blocking the Windows desktop. I can bring Windows apps to the foreground, but as soon as I bring any Ubuntu window to the foreground, all the windows apps will disappear, hidden by the ubuntu desktop even if I activated an Ubuntu window in a different monitor. So, it is not very much different from full-screen mode at this time. I suspect if I could turn off the Ubuntu desktop or wallpaper this would be a sufficient workaround (this is basically what Seamless mode is) but that does not seem to be possible within Ubuntu itself. [Jeremy doesn't specify system config, but I can confirm I'm seeing this behavior in Win 7 64-bit with both 32-bit and 64-bit guests. Giovanni sees the same thing on his laptop running Vista Ultimate 64 bit after upgrading his 32-bit guest to 12.04 (forums.virtualbox.org p225407, requires logging in with your free Oracle account). I was using vbox 4.1.14r77440 and matching Guest Additions. I upgraded to 4.1.16-78094 vbox+additions. Still a problem. And I filed launchpad bug 999929 to see if I can get feedback from developers. – tbc0] Any other ideas?

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• Silverlight Cream for May 19, 2010 -- #865

  - by Dave Campbell

  In this Issue: Michael Washington, Mike Snow(-2-), Justin Angel(-2-), Jeremy Likness, and David Kelley. Shoutout: Erik Mork and crew have their latest up: Silverlight Week – Silverlight Android? From SilverlightCream.com: Simple Silverlight 4 Example Using oData and RX Extensions Michael Washington has a follow-on tutorial up on ViewModel, Rx, and lashed up to OData... good detailed tutorial with external links for more information. Silverlight Tip of the Day #21 – Animation Easing Mike Snow has a couple new tips up -- this first one is about easing... great diagrams to help visualize and a cool demo application to boot. Silverlight Tip of the Day #22 – Data Validation Mike Snow's second tip (#22) is about validation and again he has a great demo app on the post. Windows Phone 7 - Emulator Automation Justin Angel has a WP7 post up about Automating the emulator... and in the process, loading the emulator from something other than VS2010... lots of good information. TFS2010 WP7 Continuous Integration Justin Angel hinted at continuous integration for WP7 in the last post, and he pays off with this one... even without all the bits installed on the build server. Making the ScrollViewer Talk in Silverlight 4 Jeremy Likness tried to respond to a user query about knowing when a user scrolled to the bottom of a ScrollViewer... Jeremy resolved it by listening to the right property. MEF (Microsoft Extensibility Framework) made simple (ish) David Kelley is discussing MEF and using a real-world example while doing so. Good discussion and code available in his code browser app... check thecomments. 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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• Election 2012: Twitter Breaks Records with MySQL

  - by Bertrand Matthelié

  Twitter VP of Infrastructure Operations Engineering Mazen Rawashdeh shared news and numbers yesterday on his blog: "Last night, the world tuned in to Twitter to share the election results as U.S. voters chose a president and settled many other campaigns. Throughout the day, people sent more than 31 million election-related Tweets (which contained certain key terms and relevant hashtags). And as results rolled in, we tracked the surge in election-related Tweets at 327,452 Tweets per minute (TPM). These numbers reflect the largest election-related Twitter conversation during our 6 years of existence, though they don’t capture the total volume of all Tweets yesterday." "Last night, Twitter averaged about 9,965 TPS from 8:11pm to 9:11pm PT, with a one-second peak of 15,107 TPS at 8:20pm PT and a one-minute peak of 874,560 TPM. Seeing a sustained peak over the course of an entire event is a change from the way people have previously turned to Twitter during live events. Now, rather than brief spikes, we are seeing sustained peaks for hours." Congrats to Jeremy Cole, Davi Arnaut and the rest of the team at Twitter for their excellent work! Jeremy recently held a keynote presentation at MySQL Connect describing how MySQL powers Twitter, and why they chose and continue to rely on MySQL for their operations. You can watch the presentation here. He also went into more details during another presentation later that day and you can access the slides here. Below a couple of tweets from Jeremy after what have surely been hectic days...  Keep up the good work guys!

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• Use Dynamic SQL to Improve Query Performance

  This article by Jonathan Roberts demonstrates how to use dynamic SQL and overcome its downsides.

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• Ensure we're found in Facebook search for both full & abbreviated company names?

  - by hawbsl

  We have a client with a facebook page, let's say his company is called Bob Roberts Super Widgets. And if you search in Facebook for Bob Roberts Super Widgets then up he pops. But the shorthand he's commonly known by is BR Super Widgets and indeed the website we've created for him is br-super-widgets.com. In Facebook, searching for BR Super Widgets doesn't show up our Mr Bob. We don't have a lot of Facebook expertise, so asking for help here. Does anyone know how to ensure you're found in Facebook search for both short and long company names? Have found this this similar question in the Facebook forum but the poor old questioner never got a response.

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• Ensure we're found in Facebook search for both full & abbreviated company names?

  - by hawbsl

  We have a client with a facebook page, let's say his company is called Bob Roberts Super Widgets. And if you search in Facebook for Bob Roberts Super Widgets then up he pops. But the shorthand he's commonly known by is BR Super Widgets and indeed the website we've created for him is br-super-widgets.com. In Facebook, searching for BR Super Widgets doesn't show up our Mr Bob. We don't have a lot of Facebook expertise, so asking for help here. Does anyone know how to ensure you're found in Facebook search for both short and long company names? Have found this this similar question in the Facebook forum but the poor old questioner never got a response.

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• Silverlight Cream for March 06, 2011 -- #1054

  - by Dave Campbell

  In this Back from the Summit Issue, I am overloaded with posts to choose from. Submittals go first, but I'll eventually catch up... hopefully by MIX :) : Ollie Riches(-2-), Colin Eberhardt, John Papa, Jeremy Likness, Martin Krüger, Joost van Schaik, Karl Shifflett, Michael Crump, Georgi Stoyanov, Yochay Kiriaty, Page Brooks, and Deborah Kurata. Above the Fold: Silverlight: "ClassifiedCabinet: A Quick Start" Georgi Stoyanov WP7: "Easy access to WMAppManifest.xml App properties like version and title" Joost van Schaik Multiple: "Flashcards.Show Version 2 for the Desktop, Browser, and Windows Phone" Yochay Kiriaty Shoutouts: Mohamed Mosallem delivered an online session at the Second Riyadh Online Community Summit: Silverlight 4.0 with SharePoint 2010 John-Daniel Trask posted about a release of a new set of tools released for WP7 development... there's a free trial, so definitely worth a look: Mindscape Phone Elements released! From SilverlightCream.com: WP7Contrib: Trickling data to a bound collection Ollie Riches submitted a couple links... first up is this on a way they found to decrease the load on a data template in WP7 to get under the 90 mb limit and then added their solution to the WP7Contrib lib. WP7Contrib: Why we use SilverlightSerializer instead of DataContractSerializer Ollie Riches' next submittal compares the performance of the SilverlightSerializer & DataContractSerializer on the WP7 platform. MVVM Charting – Binding Multiple Series to a Visiblox Chart Colin Eberhardt sent me this post where he describes binding multiple series to a chart with no code-behind... great long multi-phase tutorial all with source. Silverlight TV 64: Dive into 64bit Support, App Model and Security John Papa has Nick Kramer of the Silverlight team up for his latest Silverlight TV episode, discussing some cool new Silverlight stuff: 64-bit support, multiple windows, etc. Building a Windows Phone 7 Application with UltraLight.mvvm Jeremy Likness has a pre-summit tutorial up on his UltraLight.mvvm project, and how he would use it to build a WP7 app... great to meet you, Jeremy! How to: Storyboard only start with the conspicuousness of the application in the browser window Martin Krüger continues his Storyboard startup solutions with this one about what to do if the Silverlight app is small or simply an island on an html page. Easy access to WMAppManifest.xml App properties like version and title Joost van Schaik posted about the WP7 manifest file and how you can get access to that information at runtime... why you ask? How about version number or title? Be sure to read the helpful hints in the last paragraph too! Mole 2010 Released Karl Shifflett, Josh Smith, and others have released the latest version of Mole... well worth the money in my opinion, if only it worked for Silverlight! (not their fault) Changing the Default Windows Phone 7 Deployment Target In Visual Studio 2010 Michael Crump points out an annoyance with the 2011 WP7 tools update... VS2010 defaults to the device rather than the emulator... and he shows us how to get it pointed back to the emulator! ClassifiedCabinet: A Quick Start Georgi Stoyanov posted a QuickStart to a 'ClassifiedCabinet' control posted on CodePlex... check out the demo first, you'll want to read the article after that. He builds a simple project from scratch using the control. Flashcards.Show Version 2 for the Desktop, Browser, and Windows Phone Yochay Kiriaty has a post up about FlashCards.Show version 2 that he worked on with Arik Poznanski and has it now running on the desktop, browser, and WP7, plus you get the source... I've been wanting to write just such an app for WP7, so hey... this saves me some time! A Simple Focus Manager for Jounce Applications Page Brooks has a post up about Jeremy Likness' Jounce... how to set focus to a particular control when a view loads. Silverlight Charting: Formatting the Axis Deborah Kurata is continuing her charting series with this one on setting axis font color and putting the text at an angle... really dresses up the chart! 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 10, 2011 -- #1045

  - by Dave Campbell

  In this Issue: Mark Monster, Jaime Rodriguez, Mark Hopkins, WindowsPhoneGeek, David Anson, Jesse Liberty, Jeremy Likness, Martin Krüger(-2-), Beth Massi, Joost van Schaik, Laurent Bugnion, and Arik Poznanski. Above the Fold: Silverlight: "Parsing the Visual Tree with LINQ" Jeremy Likness WP7: "Silverlight-ready PNG encoder implementation shows one way to use .NET IEnumerables effectively" David Anson Lightswitch: "How to Send Automated Appointments from a LightSwitch Application" Beth Massi Shoutouts: Be sure to visit SilverlightShow... check out their top hits last week: SilverlightShow for Jan 31- Feb 06, 2011 Jaime Rodriguez has a post up that all the WP7 folks will be interested in: FAQ about copy paste functionality in upcoming release From SilverlightCream.com: Make use of WCF FaultContracts in Silverlight clients Mark Monster takes a shot at answering “The remote server returned an error: NotFound” while connecting to a WCF Service problem we all see. Communication between HTML in WebBrowser and Silverlight app Jaime Rodriguez responds to questions he received about communication between HTML and SIlverlight with this post about the bi-directional communication between the control and HTML. WP7 - Real Apps, Real Code Mark Hopkins has a post up about some WP7 starter kits that you can get all the source for and actually download the app from the Marketplace first to see if it interests you! WP7 AboutPrompt in depth WindowsPhoneGeek has this cool post up about the AboutPrompt from the Coding4Fun toolkit in detail... great diagrams showing where all the elements are and code examples with images. Silverlight-ready PNG encoder implementation shows one way to use .NET IEnumerables effectively David Anson describes why he took it upon himself to write his own png encoder for Silverlight... and we all thank him for doing so and providing us with the code! Navigation 101–Cancelling Navigation Jesse Liberty's latest WP7 From Scratch episode is up (number 32), and he's talking about Navigation and how to cancel it if you need to. Parsing the Visual Tree with LINQ Jeremy Likness demonstrates using LINQ to rat out information in the visual tree of your XAML. To Quote Jeremy: "you can easily check for intersections between elements and find any type of element no matter how deep within the tree it is". SpriteAnimationBehavior Martin Krüger has a couple more fun things in the Expression Gallery that I haven't discussed. First up is a behavior that animates up to 999 images and lets you control the FramesPerSecond... great demo on the ExpressionGallery to play with. Second alternative: Storyboard should not start before the Silverlight application is loaded Martin Krüger's latest is a way to programmatically wait for the Loaded event so that you know you can let your animations fly. How to Send Automated Appointments from a LightSwitch Application Beth Massi's latest Lightswitch post follows up her Outlook automation one with sending appointments using the standard iCalendar format... all the code included of course. The case for the Bindable Application Bar for Windows Phone 7 Joost van Schaik posts about a bindable Application Bar for your WP7 apps... grab the code and don't leave home without it :) MVVM Light V4 preview (BL0014) release notes Laurent Bugnion posted an update to MVVMLight to Codeplex a couple days ago. This is an early preview of what he plans on having in version 4, so check out the post for what's new and fun. Search Digg on Windows Phone 7 Arik Poznanski followed up his RSS post from last week with this one on searching Digg on WP7... and he's discussing and providing a utility class for doing it. 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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• No Alias's when sudo'ing

  - by Danny Roberts

  I was playing around with aliases today and I noticed that aliases don't seem to be available whilst using sudo: danny@kaon:~$ alias alias egrep='egrep --color=auto' alias fgrep='fgrep --color=auto' alias grep='grep --color=auto' alias l='ls -CF' alias la='ls -A' alias ll='ls -alF' alias ls='ls --color=auto' danny@kaon:~$ ll -d / drwxr-xr-x 23 root root 4096 2011-01-06 20:29 // danny@kaon:~$ sudo -i root@kaon:~# ll -d / drwxr-xr-x 23 root root 4096 2011-01-06 20:29 // root@kaon:~# exit logout danny@kaon:~$ sudo ll -d / sudo: ll: command not found Is there any reason why you cannot use aliases whilst using sudo?

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• Aliases not available when using sudo

  - by Danny Roberts

  I was playing around with aliases today and I noticed that aliases don't seem to be available whilst using sudo: danny@kaon:~$ alias alias egrep='egrep --color=auto' alias fgrep='fgrep --color=auto' alias grep='grep --color=auto' alias l='ls -CF' alias la='ls -A' alias ll='ls -alF' alias ls='ls --color=auto' danny@kaon:~$ ll -d / drwxr-xr-x 23 root root 4096 2011-01-06 20:29 // danny@kaon:~$ sudo -i root@kaon:~# ll -d / drwxr-xr-x 23 root root 4096 2011-01-06 20:29 // root@kaon:~# exit logout danny@kaon:~$ sudo ll -d / sudo: ll: command not found Is there any reason why you cannot use aliases whilst using sudo?

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• Should I swap from WCF to NserviceBus

  - by Matt Roberts

  We have a central server that sends and recieves messages from a number of PCs that are located on client networks in various locations. To facilitate this, currently I'm using WCF with TCPNetBindings, using duplex communication secured with certificates. Now, we have a number of issues with this - mainly that we are being asked to support "disconnected mode" (we need to be fault tolerant). From what I know, there is no simple way to do this using the WCF stack - we'd need to implement something and perhaps use msmq. I've been looking at NServiceBus lately, and from I can see it seems to fit the bill well - fault tolerance, messages can be sent over the internet via a simple http gateway, etc. I know it's well respected in the community, and I can see why from looking into it. So, my question is...Does employing NServiceBus sound like a sensible idea, or does anyone have any other suggestions / real world experience that relate to this? I guess I'm worried of introducing a new tech that I know relatively little about, and facing problems with things like securing it, setting everything up in a reliable way, gotchas along the way.. I'm also wary of "gold-plating" the architecture, and choosing something shiny that will end up bogging me down in implementation versus sticking with WCF and just making it work for me.. Thanks!

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• Developing professionally for iOS, Android and web - an insight

  - by Scott Roberts

  This is not really a question on how to develop all three, I know various cross platform ways and so on. But I more want to know from developer standpoint how hard it is to basically develop iOS, Android and web apps? I am currently in my first job as a mobile/web developer. I have already developed my first iPhone/iPad app and now I have to develop the app for android because the web version I tried just didn't perform as well as needed and web databases just did not seem to make the cut. But I am not sure it's possible to be good at developing all 3 in terms of remembering all the api's etc. I wouldn't say I have an issue with the programming languages just how to use the api's for the various platforms. Also, all the other languages I look at, in my spare time, just feel like I am spreading myself to thin. Is it feasible for one person to be developing ios, android and web apps? Should I think about reducing it to iOS and web based apps? I develop everything by myself, so I have no one to discuss what the best solutions are for everything and I am just trying to workout as I go along. So any cross platform developers out there? Do companies have different teams for different platforms? Any insight would just help me get my head together. Hopefully this question makes sense.

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• Developing professionally for both iOS, Android, web - an insight

  - by Scott Roberts

  This is not really a question on how to develop for both, I know various cross platform ways and so on. But I more want to know from developer standpoint how hard it is to basically develop iOS, Android and web apps? I am currently in my first job as a mobile/web developer. I have already developed my first iPhone/iPad app and now I have to develop the app for android because the web version I tried just didn't perform as well as needed and web databases just did not seem to make the cut. But I am not sure it's possible to be good at developing all 3 in terms of remembering all the api's etc. I wouldn't say I have an issue with the programming languages just how to use the api's for the various platforms. Also, all the other languages I look at, in my spare time, just feel like I am spreading myself to thin. Is it feasible for one person to be developing ios, android and web apps? Should I think about reducing it to iOS and web based apps? I develop everything by myself, so I have no one to discuss what the best solutions are for everything and I am just trying to workout as I go along. So any cross platform developers out there? Do companies have different teams for different platforms? Any insight would just help me get my head together. Hopefully this question makes sense.

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• Architecture guidelines for a "single page web-app"

  - by Matt Roberts

  I'm going to start a side project to build a "single page" web application. The application needs to be real-time, sending updates to the clients as changes happen. Are there any good resources for best-practice approaches wrt the architecture for these kinds of applications. The best resource I've found so far is the trello architecture article here: http://blog.fogcreek.com/the-trello-tech-stack/ To me, this architecture, although very sexy, is probably over-engineered for my specific needs - although I do have similar requirements. I'm wondering if I need to bother with a sub/pub at the server side, could I not just push updates from the server when something happens (e.g. when the client sends an update to the server, write the update to the db, and then send an update to the clients). Tech-wise, I'm probably looking to build this out in Node.JS or maybe Ruby, although the architecture guidelines should to some extent apply to any underlying server technologies.

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• Install of mod_proxy to get ProxyPass to work

  - by Lance Roberts

  I've been trying to follow these instructions, so that I could get the Citadel mail server to work alongside Apache, but I get an error when I try to restart Apache: Invalid command 'ProxyPass', ... I was told in the Apache docs that this is from the mod_proxy module, but apt-get install mod_proxy gives E: Couldn't find package mod_proxy, and I was unable to find it on the big list on the Apache site. What do I need to do to get the ProxyPass working in Ubuntu 10.04 TLS?

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• How should I generate and store the boundries of a cave?

  - by Bob Roberts

  I am making a small cave copter game (seriously, where did this type of game come from anyway) and I am trying to figure out how to make and store the procedural generated walls. I am thinking about creating the walls by randomly picking two points away from the center of the screen. They will be no closer than the height of helicopter and no further than the edge of the screen, weighted to prefer to go in the same direction as the point prior so I end up with stalactites and stalagmites and not just noise, at set intervals of distance. To store, perhaps parallel arrays/lists, one for distance from center to top screen and one for distance from center to bottom. Am I way off base with my thinking? I just want the cave to be varied and challenging, I just have never worked with generating data like this. Edit: Woah, I just realized that my idea would lead to a player being able to stay in the middle of the screen and win. That isn't right at all. So the very basis of how I was going to generate is wrong. Edit 2: I also realized I left out a very crucial point. Part of the mechanics of the game will let the player go backwards therefor the data structure should be continuous.

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• Fortigate - Accessing a Virtual Server address from several interfaces

  - by Jeremy G

  I am setting up a new application in its own DMZ on our Fortigate 300C firewalls. I have defined a load-balancing configuration for part of the application, and this works fine for traffic coming in from our internal network. However, I would also like this application to be reachable from other DMZs, for inter-application traffic, and from the SSL VPN interface. I can't seem to define the required policy, and it seems this is due to Virtual Servers being bound to the client interface on the Fortigate rather than the server interface (and so my virtual IP is not accessible from any of these other interfaces) Does anyone have an idea how I might go about this ? I guess I could create other virtual IPs for each interface, but this gets complicated to handle as clients need to change the address they use depending on how they are connecting. Thanks, Jeremy G

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