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  • Remote Router Access For Linksys WRT54GL

    - by Tim
    Hi, I just set up a wireless network at home using a Linksys WRT54GL. All was fine except that I can still access 192.168.1.1, the configuration setup page of the router, within the local wireless after I disabled "Remote Management". I think if remote access is indeed disabled, one can access my router setup page only by using a cable connecting from his computer to the router. Is this true or am I wrong? Thanks and regards!

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  • Multiple PPPoe connection to multiple computers via 1 modem?

    - by Koong
    I have a TP-link Wireless Router TP-WR542G and a Zyxel Prestige 650m-61 modem. I have 2 separate PPPoe accounts from my ISP. I'm thinking of using those 2 accounts simultaneously using my 1 modem. I wanted to have 1 account to be connected to the wireless router and 1 account to my computer. Is that possible? How? TQ

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  • How to monitor internet usage

    - by calamity123
    How do i monitor my family's internet usage. Most of them are connected through a wireless router wifi. And i cant install spy programs on each computer. how do i find out what they do and see with this wireless network. and view who all access my network and what they access it for. Please respond. freeware would be helpful.

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  • Sharing an internet connection via crossover capable without changing IP settings

    - by jhioj
    I have a home wireless network and two laptops. My primary laptop is normal, and runs Windows 7. My secondary laptop has no wireless capability, and I have no access to the IP settings on my account. How can I access the internet on my secondary computer through my primary computer using a crossover cable or something similar? In other words, how can I make my primary computer produce a connection that my secondary computer will find indistinguishable from normal ethernet?

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  • Wifi interference tool for Mac

    - by Kevin Burke
    This Server Fault blog post shows some tools you can use to view interference on your wireless network: blog.serverfault.com/2012/01/05/a-studied-approach-at-wifi-part-2/. They mention Vistumbler, which only works on PC's. Is there a similar tool I can use to measure wireless interference on a Mac? Also, is it better to be on a channel with many AP's, each with a weak signal, or on a channel with only a few AP's, but a strong signal?

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  • Ubuntu 9.10 upgraded with Internet connection fail

    - by Neofizz
    I am pretty sure that the latest Ubuntu release does not support my wireless internet card. Everything was working fine in 9.04 and since upgrading my browser will load web pages. I can see and connect to my wep encrypted network. I can ping google.com and lose no packets. I am at the end of my tether, what else can I try? Is it possible to download a driver to re-enable my wireless?

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  • How can I find which drivers are the correct ones for my machine?

    - by tombull89
    I'm currently installing Windows 7 onto a new laptop before imaging it to deploy. I need to install the Wireless and Graphics drivers, but the HP site is offering me both ATI and Intel graphics drivers (at 102MB and 470(!)MB) a pop, as well as Intel, Broadcomm, RealTek and Atheros wireless drivers. Is there a bit of software that will tell me what devices are in the machine so I don't have to go through, trial-and-error and find which is the right driver for the hardware?

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  • Fedora internet access and managing

    - by Fractal
    This questions speaks about a UNIX Fedora install, DWA-552 wireless adapter, and internet What are the required packages on a KDE GUI installation, and on the basic UNIX TUI installation, to access internet and manage wireless networks? On a larger scale, does anyone knows of an all encompassing list of basic functions (such as monitoring or hardware control) with their respective packages dependencies?

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  • Print Wirelessly from the iPhone [migrated]

    - by Lynda
    I am looking to purchase a printer and before anyone votes to close I am not asking for recommendations. Here is my question I would like to have a printer that I can print to directly from my iPhone. When I google "air print" (based off of what the iPhone says) I see HP Wireless Printers. That leads me to the question can I use the iPhone to print on any printer with wireless capabilities or does it have to be one of these HP Printers with "ePrint"?

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  • Share Internet via Ethernet from Mac OSX to Ubuntu (10.04)?

    - by user
    Anyone know how to share an Internet connection over Ethernet, from Mac OSX to Ubuntu (Lucid Lynx 10.04)? EDIT Mac receives Internet access via Airport (Wireless). I don't need any Mac-Ubuntu file sharing, just need to access the Internet through the Mac. (The reason for this is that the Ubuntu box's wireless adapter isn't supported by the default 10.04 install, so I need to connect Ubuntu to the net with a wired connection to update certain packages.)

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  • How, exactly does HTML5's GeoLocation work?

    - by Dan
    I know the browser shares my IP address and details of nearby wireless networks to determine my location, but what sort of info does it know about nearby wifi networks? For example, where I live are no public wireless networks, and from my home I can see about 5 private networks, yet my location is determined within 20 meters. With there being no open networks nearby, how does Google determine my location? The only way I can think of is that Google mapped the locations of all wireless networks when they mapped streets for Street View. I've searched about online, but all I can't find any specific details.

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  • CodePlex Daily Summary for Thursday, February 10, 2011

    CodePlex Daily Summary for Thursday, February 10, 2011Popular ReleasesSnoop, the WPF Spy Utility: Snoop 2.6.1: This release is a bug fixing release. Most importantly, issues have been seen around WPF 4.0 applications not always showing up in the app chooser. Hopefully, they are fixed now. I thought this issue warranted a minor release since more and more people are going WPF 4.0 and I don't want anyone to have any problems. Dan Hanan also contributes again with several usability features. Thanks Dan! Happy Snooping! Work Item Description 5149 Dan Hanan: You can now use the mouse wheel t...RIBA - Rich Internet Business Application for Silverlight: Preview of MVVM Framework Source + Tutorials: This is a first public release of the MVVM Framework which is part of the final RIBA application. The complete RIBA example LOB application has yet to be published. Further Documentation on the MVVM part can be found on the Blog, http://www.SilverlightBlog.Net and in the downloadable source ( mvvm/doc/ ). Please post all issues and suggestions in the issue tracker.SharePoint Learning Kit: 1.5: SharePoint Learning Kit 1.5 has the following new functionality: *Support for SharePoint 2010 *E-Learning Actions can be localised *Two New Document Library Edit Options *Automatically add the Assignment List Web Part to the Web Part Gallery *Various Bug Fixes for the Drop Box There are 2 downloads for this release SLK-1.5-2010.zip for SharePoint 2010 SLK-1.5-2007.zip for SharePoint 2007 (WSS3 & MOSS 2007)Facebook C# SDK: 5.0.3 (BETA): This is fourth BETA release of the version 5 branch of the Facebook C# SDK. Remember this is a BETA build. Some things may change or not work exactly as planned. We are absolutely looking for feedback on this release to help us improve the final 5.X.X release. For more information about this release see the following blog posts: Facebook C# SDK - Writing your first Facebook Application Facebook C# SDK v5 Beta Internals Facebook C# SDK V5.0.0 (BETA) Released We have spend time trying ...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Excel Template, version 1.0.1.161: The NodeXL Excel template displays a network graph using edge and vertex lists stored in an Excel 2007 or Excel 2010 workbook. What's NewThis release adds a new Twitter List network importer, makes some minor feature improvements, and fixes a few bugs. See the Complete NodeXL Release History for details. Installation StepsFollow these steps to install and use the template: Download the Zip file. Unzip it into any folder. Use WinZip or a similar program, or just right-click the Zip file...WatchersNET.TagCloud: WatchersNET.TagCloud 01.09.03: Whats NewAdded New Skin TagTastic http://www.watchersnet.de/Portals/0/screenshots/dnn/TagCloud-TagTastic-Skin.jpg Added New Skin RoundedButton http://www.watchersnet.de/Portals/0/screenshots/dnn/TagCloud-RoundedButton-Skin.jpg changes Tag Count fixed on Tag Source Referrals Fixed Tag Count when multiple Tag Sources are usedFinestra Virtual Desktops: 1.1: This release adds a few more performance and graphical enhancements to 1.0. Switching desktops is now about as fast as you can blink. Desktop switching optimizations New welcome wizard for Vista/7 Fixed a few minor bugs Added a few more options to the options dialog (including ability to disable the taskbar switching)WCF Data Services Toolkit: WCF Data Services Toolkit: The source code and binary releases of the WCF Data Services Toolkit. For simplicity, the source code download doesn't include any of the MSTest files. If you want those, you can pull the code down via MercurialyoutubeFisher: youtubeFisher 3.0 [beta]: What's new: Video capturing improved Supports YouTube's new layout (january 2011) Internal refactoringNearforums - ASP.NET MVC forum engine: Nearforums v5.0: Version 5.0 of the ASP.NET MVC Forum Engine, containing the following improvements: .NET 4.0 as target framework using ASP.NET MVC 3. All views migrated to Razor for cleaner markup. Alternate template (Layout file) for mobile devices 4 Bug Fixes since Version 4.1 Visit the project Roadmap for more details.fuv: 1.0 release, codename Chopper Joe: features: search/replace :o to open file :s to save file :q to quitASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.7: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager html generation optimized new features for the lookup (add additional search data ) live demo went aeroEnhSim: EnhSim 2.3.6 BETA: 2.3.6 BETAThis release supports WoW patch 4.06 at level 85 To use this release, you must have the Microsoft Visual C++ 2010 Redistributable Package installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=A7B7A05E-6DE6-4D3A-A423-37BF0912DB84 To use the GUI you must have the .NET 4.0 Framework installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992 Changes since 2.3.0 ...TestApi - a library of Test APIs: TestApi v0.6: TestApi v0.6 comes with the following changes: TestApi code development has been moved to Codeplex: Moved TestApi soluton to VS 2010; Moved all source code to Codeplex. All development work is done there now. Fault Injection API: Integrated the unmanaged FaultInjectionEngine.dll COM component in the build; Cleaned up FaultInjectionEngine.dll to build at warning level 4; Implemented “FaultScope” which allows for in-process fault injection; Added automation scripts & sample program; ...AutoLoL: AutoLoL v1.5.5: AutoChat now allows up to 6 items. Items with nr. 7-0 will be removed! News page url's are now opened in the default browser Added a context menu to the system tray icon (thanks to Alex Banagos) AutoChat now allows configuring the Chat Keys and the Modifier Key The recent files list now supports compact and full mode Fix: Swapped mouse buttons are now properly detected Fix: Sometimes the Play button was pressed while still greyed out Champion: Karma Note: You can also run the u...mojoPortal: 2.3.6.2: see release notes on mojoportal.com http://www.mojoportal.com/mojoportal-2362-released.aspx Note that we have separate deployment packages for .NET 3.5 and .NET 4.0 The deployment package downloads on this page are pre-compiled and ready for production deployment, they contain no C# source code. To download the source code see the Source Code Tab I recommend getting the latest source code using TortoiseHG, you can get the source code corresponding to this release here.ReSharper Settings Manager: RSM v4.0 (For ReSharper 5.1): Donate ChangesChanged the mechanism of locating shared settings files (discussion, issue): You can now create a set of "global" settings files and configure how R# settings will get loaded (settings inheritance and overrides). All solutions located at the same folder and\or subfolders where the global settings file is located will load that file automatically. Improved "Manage Settings" dialog to support new settings sharing features. Bug fixes: 228048 16590 16584Rawr: Rawr 4.0.19 Beta: Rawr is now web-based. The link to use Rawr4 is: http://elitistjerks.com/rawr.phpThis is the Cataclysm Beta Release. More details can be found at the following link http://rawr.codeplex.com/Thread/View.aspx?ThreadId=237262 As of the 4.0.16 release, you can now also begin using the new Downloadable WPF version of Rawr!This is a pre-alpha release of the WPF version, there are likely to be a lot of issues. If you have a problem, please follow the Posting Guidelines and put it into the Issue Trac...IronRuby: 1.1.2: IronRuby 1.1.2 is a servicing release that keeps on improving compatibility with Ruby 1.9.2 and includes IronRuby integration to Visual Studio 2010. We decided to drop 1.8.6 compatibility mode in all post-1.0 releases. We recommend using IronRuby 1.0 if you need 1.8.6 compatibility. In this release we fixed several major issues: - problems that blocked Gem installation in certain cases - regex syntax: the parser was replaced with a new one that is much more compatible with Ruby 1.9.2 - cras...MVVM Light Toolkit: MVVM Light Toolkit V3 SP1 (4): There was a small issue with the previous release that caused errors when installing the templates in VS10 Express. This release corrects the error. Only use this if you encountered issues when installing the previous release. No changes in the binaries.New ProjectsAJAX Map DataConnector: AJAX Map DataConnector is an Open Source + Open Data project focused on connecting the power of Bing Maps AJAX Control, Version 7.0 to the spatial query capabilities of SQL Server 2008. The examples provided here represent a starting point, showing some ways to harness SQL ServerASP.NET Mvc Cdn Management: Cdn Management loads different resources (like styles, scripts etc) from configuration file. It reads resource location (url) from a configuration file and renders it into a page.Azure Content Provider for Telerik File Browser: Windows Azure Storage FileBrowserContentProvider makes it easier for web developers to Connect the Telerik RadFileExplorer control to the Windows Azure Storage. It's developed in VB.NET. BeerForge: BeerForge is an open source application for the home brewer to ease the creation of beer recipes and provide handy calculation tools.budget-manage: ???????????,??????????。Command Line Parsing, C++ and C#: This is a simple project that does command line arguments parsing. C# and C++ projects are supplied, together with unit tests.DeleteAfterRunning: Application allowing you to convert any file to self-deleting executable. You have a picture, audio file or a document you want to share, but don’t want anyone to keep a copy? Simply create a self-deleting package using DeleteAfterRunning that can be opened only once.DotNetNuke Contest: A module for contest voting in DotNetNuke.Foundry: Experiments in language design and data modeling.GenAttributeLib: Libreria per la gestione di attributi generici di un oggetto.Graduation Project Management System: This is our graduation project. It uses Asp.net Mvc 3,Jquery,Ado.net Entity Framework,and so on. by Veiller hu,ZSPiKnow - A tiny wiki: iKnow is a (really) tiny wiki. Up and running in 5 minutes, easy to customize and of course open source and free to use.internationalOffice: This will contain all the code and bugs for a student project.Iroo Package Manager: Orchard package management UI (auto-update)Iroo Version Manager: Version management for Content ItemsJavApi: JavApi provides a collection of .NET classes in the form of the Java API. It thus allows you to use an identical API to develop for both platforms.jsfcore @ Personal Repository: This project contains s wmultiple sampleith various snippets and projects from blog posts, user group talks, and conference sessions. M3 CMS: M3 Cms is a lightweight content management system built on the ASP.NET MVC 4.0 framework. Uses SQLCE database and nHibernate+ActiveRecord framework.Market-Basket Synthetic Data Generator: An open-source C# market-basket synthetic data generator, capable of creating transactions, sequences and taxonomies, based on the IBM Quest version. Written to address the maintainability and portability problems of the original, feedback, fixes and extensions are encouraged!MicroLinq : Libraries for .NET Micro Framework: MicroLinq is a project to bring a small subset of the power of Linq to the .NET Micro Framework. Over time (hours) the project has expanded to include other helpful libraries and proof of concept code others might find useful.MJPEG Decoder for WPF, WinForms, WP7 and XNA: Library to decode MJPEG streams for Silverlight, Windows Phone 7, XNA 4.0, WinForms, and WPF. Sample code showing usage is included with the distribution. For more information, see the full article at Coding4Fun.modSIC: Modulo's Open Distributed SCAP Infrastructure Collector, or modSIC, makes it easier for security analysts to scan an environment vulnerabilities/compliance based on OVAL-Definitions file. It's an open source service specializing in distributed assessment on a network.MoneyTracker: MoneyTracker is used to keep track of transactions, create your own categories and view reports.PixelsCMS: ASP.NET CMS, PixelsCMS, MVC 2rainTwitter: A twitter module/skin for the rainmeter Windows desktop customization platform. (IN DEVELOPMENT)Reactor.ServiceBus: Reactor Service Bus is a light weight .Net service bus built upon the Apache NMS abstraction library. It provides a slim and easy to use interface that supports all the underlying brokers NMS supports.RsMenu: RsMenu es un MenuStrip que permite tener los Informes de Reporting Services en un elegante menu en nuestra aplicacion winform.Top Protocols Expert for Network Monitor: A Network Monitor Expert which shows you the usage frequency of protocols in a trace. This expert plugs into the Network Monitor UI so you run it directly from the Expert menu. trollr.net - remotely configure & control your .Net applications: trollr.net provides a remote configuration and control network to the .Net apps in your enterprise. App configuration becomes centralised and live/runtime changes are pushed to each application - no restart required to pick up the change. Cache control commands can also be sent!Tweet 4 ME: Tweet 4 ME is a Java Micro Edition (MIDP 2.0 CLDC 1.0) based Twitter client built with a custom GUI framework. The application is part of a college project.UntitledGameProject: Untitled Game Project, Logic and Design for eventual port to Android, IOS and WP7web-framework: web??????????。C#??,framework2.0,???????。WebMatrix helpers from old school teachings: Remember when the web was fun? Well it's back with WebMatrix. We are providing just a few minor helper extensions with a sample app that should help Neo on his quest to be one with the Matrix.

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  • New Communications Industry Data Model with "Factory Installed" Predictive Analytics using Oracle Da

    - by charlie.berger
    Oracle Introduces Oracle Communications Data Model to Provide Actionable Insight for Communications Service Providers   We've integrated pre-installed analytical methodologies with the new Oracle Communications Data Model to deliver automated, simple, yet powerful predictive analytics solutions for customers.  Churn, sentiment analysis, identifying customer segments - all things that can be anticipated and hence, preconcieved and implemented inside an applications.  Read on for more information! TM Forum Management World, Nice, France - 18 May 2010 News Facts To help communications service providers (CSPs) manage and analyze rapidly growing data volumes cost effectively, Oracle today introduced the Oracle Communications Data Model. With the Oracle Communications Data Model, CSPs can achieve rapid time to value by quickly implementing a standards-based enterprise data warehouse that features communications industry-specific reporting, analytics and data mining. The combination of the Oracle Communications Data Model, Oracle Exadata and the Oracle Business Intelligence (BI) Foundation represents the most comprehensive data warehouse and BI solution for the communications industry. Also announced today, Hong Kong Broadband Network enhanced their data warehouse system, going live on Oracle Communications Data Model in three months. The leading provider increased its subscriber base by 37 percent in six months and reduced customer churn to less than one percent. Product Details Oracle Communications Data Model provides industry-specific schema and embedded analytics that address key areas such as customer management, marketing segmentation, product development and network health. CSPs can efficiently capture and monitor critical data and transform it into actionable information to support development and delivery of next-generation services using: More than 1,300 industry-specific measurements and key performance indicators (KPIs) such as network reliability statistics, provisioning metrics and customer churn propensity. Embedded OLAP cubes for extremely fast dimensional analysis of business information. Embedded data mining models for sophisticated trending and predictive analysis. Support for multiple lines of business, such as cable, mobile, wireline and Internet, which can be easily extended to support future requirements. With Oracle Communications Data Model, CSPs can jump start the implementation of a communications data warehouse in line with communications-industry standards including the TM Forum Information Framework (SID), formerly known as the Shared Information Model. Oracle Communications Data Model is optimized for any Oracle Database 11g platform, including Oracle Exadata, which can improve call data record query performance by 10x or more. Supporting Quotes "Oracle Communications Data Model covers a wide range of business areas that are relevant to modern communications service providers and is a comprehensive solution - with its data model and pre-packaged templates including BI dashboards, KPIs, OLAP cubes and mining models. It helps us save a great deal of time in building and implementing a customized data warehouse and enables us to leverage the advanced analytics quickly and more effectively," said Yasuki Hayashi, executive manager, NTT Comware Corporation. "Data volumes will only continue to grow as communications service providers expand next-generation networks, deploy new services and adopt new business models. They will increasingly need efficient, reliable data warehouses to capture key insights on data such as customer value, network value and churn probability. With the Oracle Communications Data Model, Oracle has demonstrated its commitment to meeting these needs by delivering data warehouse tools designed to fill communications industry-specific needs," said Elisabeth Rainge, program director, Network Software, IDC. "The TM Forum Conformance Mark provides reassurance to customers seeking standards-based, and therefore, cost-effective and flexible solutions. TM Forum is extremely pleased to work with Oracle to certify its Oracle Communications Data Model solution. Upon successful completion, this certification will represent the broadest and most complete implementation of the TM Forum Information Framework to date, with more than 130 aggregate business entities," said Keith Willetts, chairman and chief executive officer, TM Forum. Supporting Resources Oracle Communications Oracle Communications Data Model Data Sheet Oracle Communications Data Model Podcast Oracle Data Warehousing Oracle Communications on YouTube Oracle Communications on Delicious Oracle Communications on Facebook Oracle Communications on Twitter Oracle Communications on LinkedIn Oracle Database on Twitter The Data Warehouse Insider Blog

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  • InfiniBand Enabled Diskless PXE Boot

    - by Neeraj Gupta
    When you want to bring up a compute server in your environment and need InfiniBand connectivity, usually you go through various installation steps. This could involve operating systems like Linux, followed by a compatible InfiniBand software distribution, associated dependencies and configurations. What if you just want to run some InfiniBand diagnostics or troubleshooting tools from a test machine ? What if something happened to your primary machine and while recovering in rescue mode, you also need access to your InfiniBand network ? Often times we use opensource community supported small Linux distributions but they don't come with required InfiniBand support and tools. In this weblog, I am going to provide instructions on how to add InfniBand support to a specific Linux image - Parted Magic.This is a free to use opensource Linux distro often used to recover or rescue machines. The distribution itself will not be changed at all. Yes, you heard it right ! I have built an InfiniBand Add-on package that will be passed to the default kernel and initrd to get this all working. Pr-requisites You will need to have have a PXE server ready on your ethernet based network. The compute server you are trying to PXE boot should have a compatible IB HCA and must be connected to an active IB network. Required Downloads Download the Parted Magic small distribution for PXE from Parted Magic website. Download InfiniBand PXE Add On package. Right Click and Download from here. Do not extract contents of this file. You need to use it as is. Prepare PXE Server Extract the contents of downloaded pmagic distribution into a temporary directory. Inside the directory structure, you will see pmagic directory containing two files - bzImage and initrd.img. Copy this directory in your TFTP server's root directory. This is usually /tftpboot unless you have a different setup. For Example: cp pmagic_pxe_2012_2_27_x86_64.zip /tmp cd /tmp unzip pmagic_pxe_2012_2_27_x86_64.zip cd pmagic_pxe_2012_2_27_x86_64 # ls -l total 12 drwxr-xr-x  3 root root 4096 Feb 27 15:48 boot drwxr-xr-x  2 root root 4096 Mar 17 22:19 pmagic cp -r pmagic /tftpboot As I mentioned earlier, we dont change anything to the default pmagic distro. Simply provide the add-on package via PXE append options. If you are using a menu based PXE server, then add an entry to your menu. For example /tftpboot/pxelinux.cfg/default can be appended with following section. LABEL Diskless Boot With InfiniBand Support MENU LABEL Diskless Boot With InfiniBand Support KERNEL pmagic/bzImage APPEND initrd=pmagic/initrd.img,pmagic/ib-pxe-addon.cgz edd=off load_ramdisk=1 prompt_ramdisk=0 rw vga=normal loglevel=9 max_loop=256 TEXT HELP * A Linux Image which can be used to PXE Boot w/ IB tools ENDTEXT Note: Keep the line starting with "APPEND" as a single line. If you use host specific files in pxelinux.cfg, then you can use that specific file to add the above mentioned entry. Boot Computer over PXE Now boot your desired compute machine over PXE. This does not have to be over InfiniBand. Just use your standard ethernet interface and network. If using menus, then pick the new entry that you created in previous section. Enable IPoIB After a few minutes, you will be booted into Parted Magic environment. Open a terminal session and see if InfiniBand is enabled. You can use commands like: ifconfig -a ibstat ibv_devices ibv_devinfo If you are connected to InfiniBand network with an active Subnet Manager, then your IB interfaces must have come online by now. You can proceed and assign IP address to them. This will enable you at IPoIB layer. Example InfiniBand Diagnostic Tools I have added several InfiniBand Diagnistic tools in this add-on. You can use from following list: ibstat, ibstatus, ibv_devinfo, ibv_devices perfquery, smpquery ibnetdiscover, iblinkinfo.pl ibhosts, ibswitches, ibnodes Wrap Up This concludes this weblog. Here we saw how to bring up a computer with IPoIB and InfiniBand diagnostic tools without installing anything on it. Its almost like running diskless !

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  • Microsoft Cloud Day - the ups and downs

    - by Charles Young
    The term ‘cloud’ can sometimes obscure the obvious.  Today’s Microsoft Cloud Day conference in London provided a good example.  Scott Guthrie was halfway through what was an excellent keynote when he lost network connectivity.  This proved very disruptive to his presentation which centred on a series of demonstrations of the Azure platform in action.  Great efforts were made to find a solution, but no quick fix presented itself.  The venue’s IT facilities were dreadful – no WiFi, poor 3G reception (forget 4G…this is the UK) and, unbelievably, no-one on hand from the venue staff to help with infrastructure issues.  Eventually, after an unscheduled break, a solution was found and Scott managed to complete his demonstrations.  Further connectivity issues occurred during the day. I can say that the cause was prosaic.  A member of the venue staff had interfered with a patch board and inadvertently disconnected Scott Guthrie’s machine from the network by pulling out a cable. I need to state the obvious here.  If your PC is disconnected from the network it can’t communicate with other systems.  This could include a machine under someone’s desk, a mail server located down the hall, a server in the local data centre, an Internet search engine or even, heaven forbid, a role running on Azure. Inadvertently disconnecting a PC from the network does not imply a fundamental problem with the cloud or any specific cloud platform.  Some of the tweeted comments I’ve seen today are analogous to suggesting that, if you accidently unplug your microwave from the mains, this suggests some fundamental flaw with the electricity supply to your house.   This is poor reasoning, to say the least. As far as the conference was concerned, the connectivity issue in the keynote, coupled with some later problems in a couple of presentations, served to exaggerate the perception of poor organisation.   Software problems encountered before the conference prevented the correct set-up of a smartphone app intended to convey agenda information to attendees.  Although some information was available via this app, the organisers decided to print out an agenda at the last moment.  Unfortunately, the agenda sheet did not convey enough information, and attendees were forced to approach conference staff through the day to clarify locations of the various presentations. Despite these problems, the overwhelming feedback from conference attendees was very positive.  There was a real sense of excitement in the morning keynote.  For many, this was their first sight of new Azure features delivered in the ‘spring’ release.  The most common reaction I heard was amazement and appreciation that Azure’s new IaaS features deliver built-in template support for several flavours of Linux from day one.  This coupled with open source SDKs and several presentations on Azure’s support for Java, node.js, PHP, MongoDB and Hadoop served to communicate that the Azure platform is maturing quickly.  The new virtual network capabilities also surprised many attendees, and the much improved portal experience went down very well. So, despite some very irritating and disruptive problems, the event served its purpose well, communicating the breadth and depth of the newly upgraded Azure platform.  I enjoyed the day very much.

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  • At the Java DEMOgrounds - Oracle Java ME Embedded Enables the “Internet of Things”

    - by Janice J. Heiss
    I caught up with Oracle’s Robert Barnes, Senior Director, Java Product Management, who was demonstrating a new product from Oracle’s Java Platform, Micro Edition (Java ME) product portfolio, Oracle Java ME Embedded 3.2, a complete client Java runtime optimized for microcontrollers and other resource-constrained devices. Oracle’s Java ME Embedded 3.2 is a Java ME runtime based on CLDC 1.1 (JSR-139) and IMP-NG (JSR-228).“What we are showing here is the Java ME Embedded 3.2 that we announced last week,” explained Barnes. “It’s the start of the 'Internet of Things,’ in which you have very very small devices that are on the edge of the network where the sensors sit. You often have a middle area called a gateway or a concentrator which is fairly middle to higher performance. On the back end you have a very high performance server. What this is showing is Java spanning all the way from the server side right down towards the type of chip that you will get at the sensor side as the network.” Barnes explained that he had two different demos running.The first, called the Solar Panel System Demo, measures the brightness of the light.  “This,” said Barnes, “is a light source demo with a Cortex M3 controlling the motor, on the end of which is a sensor which is measuring the brightness of the lamp. This is recording the data of the brightness of the lamp and as we move the lamp out of the way, we should be able using the server to turn the sensor towards the lamp so the brightness reading will go higher. This sends the message back to the server and we can look at the web server sitting on the PC underneath the desk. We can actually see the data being passed back effectively through a back office type of function within a utility environment.” The second demo, the Smart Grid Response Demo, Barnes explained, “has the same board and processor and is still using Java ME embedded with a different app on top. This is a demand response demo. What we are seeing within the managing environment is that people want to track the pricing signals of the electricity. If it’s particularly expensive at any point in time, they may turn something off. This demo sets the price of the electricity as though this is coming from the back of the server sending pricing signals to my home.” The demo had a lamp and a fan and it was tracking the price of electricity. “If I set the price of the electricity to go over 5 cents, then the device will turn off,” explained Barnes. “I can go into my settings and, in this case, change the price to 50 cents and we can wait a minus and the lamp will go off. When I change the pricing signal so that it is lower, the lamp will come back on. The key point is that the Java software we have running is the same across all the different devices; it’s a way to build applications across multiple devices using the same software. This is important because it fixes peak loading on the network and can stops blackouts.” This demo brought me back to a prior decade when Sun Microsystems first promoted  Jini technology, a version of Java that would put everything on the network and give us the smart home. Your home would be automated to tell you when you were out of milk, when to change your light bulbs, etc. You would have access to the web and the network throughout your home.It’s interesting to see how technology moves over time – from the smart home to the Internet of Things.

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  • Unable to Sign in to the Microsoft Online Services Signin application from Windows 7 client located behind ISA firewall

    - by Ravindra Pamidi
    A while ago i helped a customer troubleshoot authentication problem with Microsoft Online Services Signin application.  This customer was evaluating Microsoft BPOS (Business Productivity Online Services) and was having trouble using the single sign on application behind ISA 2004 firewall.The network structure is fairly simple with single Windows 2003 Active Directory domain and Windows 7 clients. On a successful logon to the Microsoft Online Services Signin application, this application provides single signon functionality to all of Microsoft online services in the BPOS package. Symptoms:When trying to signin it fails with error "The service is currently unavailable. Please try again later. If problems continue, contact your service administrator". If ISA 2004 firewall is removed from the picture the authentication succeeds.Troubleshooting: Enabled ISA Server firewall logging along with Microsoft Network Monitor tool on the Windows 7 Client while reproducing the issue. Analysis of the ISA Server Firewall logs and Microsoft Network capture revealed that the Microsoft Online Services Sign In application when sending request to ISA Server does not send the domain credentials and as a result ISA Server responds with an error code of HTTP 407 Proxy authentication required listing out the supported authentication mechanisms.  The application in question is expected to send the credentials of the domain user in response to this request. However in this case, it fails to send the logged on user's domain credentials. Bit of researching on the Internet revealed that The "Microsoft Online Services Sign In" application by default does not support Outbound Internet Proxy authentication. In order for it to send the logged on user's domain credentials we had to make  changes to its configuration file "SignIn.exe.config" located under "Program Files\Microsoft Online Services\Sign In" folder. Step by Step details to configure the configuration file are documented on Microsoft TechNet website given below.  Configure your outbound authenticating proxy serverhttp://www.microsoft.com/online/help/en-us/helphowto/cc54100d-d149-45a9-8e96-f248ecb1b596.htm After the above problem was addressed we were still not able to use the "Microsoft Online Services Sign In" application and it failed with the same error.  Analysis of another network capture revealed that the application in question is now sending the required credentials and the connection seems to terminate at a later stage. Enabled verbose logging for the "Microsoft Online Services Sign In" application and then reproduced the problem. Analysis of the logs revealed a time difference between the local client and Microsoft Online services server of around seven minutes which is above the acceptable time skew of five minutes. Excerpt from Microsoft Online Services Sign In application verbose log:  1/26/2012 1:57:51 PM Verbose SingleSignOn.GetSSOGenericInterface SSO Interface URL: https://signinservice.apac.microsoftonline.com/ssoservice/UID1/26/2012 1:57:52 PM Exception SSOSignIn.SignIn The security timestamp is invalid because its creation time ('2012-01-26T08:34:52.767Z') is in the future. Current time is '2012-01-26T08:27:52.987Z' and allowed clock skew is '00:05:00'.1/26/2012 1:57:52 PM Exception SSOSignIn.SignIn  Although the Windows 7 Clients successfully synchronized time to the domain controller for the domain, the domain controller was not configured to synchronize time with external NTP servers. This caused a gradual drift in time on the network thus resulting in the above issue. Reconfigured the domain controller holding the PDC FSMO role to synchronize time with external time source ( time.nist.gov ) and edited the system policy on the ISA server firewall to allow NTP traffic to time.nist.gov Configure the time source for the forest:Windows Time Servicehttp://technet.microsoft.com/en-us/library/cc794937(WS.10).aspx Forced synchronization of Windows time using the command w32tm /resync on the domain controller and later on the clients each of which had corrected the seven minutes difference. This resolved the problem with logon to Microsoft Online Services Sign In.

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  • Try the Oracle Database Appliance Manager Configurator - For Fun!

    - by pwstephe-Oracle
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 If you would like to get a first hand glimpse of how easy it is to configure an ODA, even if you don’t have access to one, it’s possible to download the Appliance Manager Configurator from the Oracle Technology Network, and run it standalone on your PC or Linux/Unix  workstation. The configurator is packaged in a zip file that contains the complete Java environment to run standalone. Once the package is downloaded and unzipped it’s simply a matter of launching it using the config command or shell depending on your runtime environment. Oracle Appliance Manager Configurator is a Java-based tool that enables you to input your deployment plan and validate your network settings before an actual deployment, or you can just preview and experiment with it. Simply download and run the configurator on a local client system which can be a Windows, Linux, or UNIX system. (For Windows launch the batch file config.bat for Linux/Unix environments, run  ./ config.sh). You will be presented with the very same dialogs and options used to configure a production ODA but on your workstation. At the end of a configurator session, you may save your deployment plan in a configuration file. If you were actually ready to deploy, you could copy this configuration file to a real ODA where the online Oracle Appliance Manager Configurator would use the contents to deploy your plan in production. You may also print the file’s content and use the printout as a checklist for setting up your production external network configuration. Be sure to use the actual production network addresses you intend to use it as this will only work correctly if your client system is connected to same network that will be used for the ODA. (This step is not necessary if you are just previewing the Configurator). This is a great way to get an introductory look at the simple and intuitive Database Appliance configuration interface and the steps to configure a system. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • Should I expose IObservable<T> on my interfaces?

    - by Alex
    My colleague and I have dispute. We are writing a .NET application that processes massive amounts of data. It receives data elements, groups subsets of them into blocks according to some criterion and processes those blocks. Let's say we have data items of type Foo arriving some source (from the network, for example) one by one. We wish to gather subsets of related objects of type Foo, construct an object of type Bar from each such subset and process objects of type Bar. One of us suggested the following design. Its main theme is exposing IObservable objects directly from the interfaces of our components. // ********* Interfaces ********** interface IFooSource { // this is the event-stream of objects of type Foo IObservable<Foo> FooArrivals { get; } } interface IBarSource { // this is the event-stream of objects of type Bar IObservable<Bar> BarArrivals { get; } } / ********* Implementations ********* class FooSource : IFooSource { // Here we put logic that receives Foo objects from the network and publishes them to the FooArrivals event stream. } class FooSubsetsToBarConverter : IBarSource { IFooSource fooSource; IObservable<Bar> BarArrivals { get { // Do some fancy Rx operators on fooSource.FooArrivals, like Buffer, Window, Join and others and return IObservable<Bar> } } } // this class will subscribe to the bar source and do processing class BarsProcessor { BarsProcessor(IBarSource barSource); void Subscribe(); } // ******************* Main ************************ class Program { public static void Main(string[] args) { var fooSource = FooSourceFactory.Create(); var barsProcessor = BarsProcessorFactory.Create(fooSource) // this will create FooSubsetToBarConverter and BarsProcessor barsProcessor.Subscribe(); fooSource.Run(); // this enters a loop of listening for Foo objects from the network and notifying about their arrival. } } The other suggested another design that its main theme is using our own publisher/subscriber interfaces and using Rx inside the implementations only when needed. //********** interfaces ********* interface IPublisher<T> { void Subscribe(ISubscriber<T> subscriber); } interface ISubscriber<T> { Action<T> Callback { get; } } //********** implementations ********* class FooSource : IPublisher<Foo> { public void Subscribe(ISubscriber<Foo> subscriber) { /* ... */ } // here we put logic that receives Foo objects from some source (the network?) publishes them to the registered subscribers } class FooSubsetsToBarConverter : ISubscriber<Foo>, IPublisher<Bar> { void Callback(Foo foo) { // here we put logic that aggregates Foo objects and publishes Bars when we have received a subset of Foos that match our criteria // maybe we use Rx here internally. } public void Subscribe(ISubscriber<Bar> subscriber) { /* ... */ } } class BarsProcessor : ISubscriber<Bar> { void Callback(Bar bar) { // here we put code that processes Bar objects } } //********** program ********* class Program { public static void Main(string[] args) { var fooSource = fooSourceFactory.Create(); var barsProcessor = barsProcessorFactory.Create(fooSource) // this will create BarsProcessor and perform all the necessary subscriptions fooSource.Run(); // this enters a loop of listening for Foo objects from the network and notifying about their arrival. } } Which one do you think is better? Exposing IObservable and making our components create new event streams from Rx operators, or defining our own publisher/subscriber interfaces and using Rx internally if needed? Here are some things to consider about the designs: In the first design the consumer of our interfaces has the whole power of Rx at his/her fingertips and can perform any Rx operators. One of us claims this is an advantage and the other claims that this is a drawback. The second design allows us to use any publisher/subscriber architecture under the hood. The first design ties us to Rx. If we wish to use the power of Rx, it requires more work in the second design because we need to translate the custom publisher/subscriber implementation to Rx and back. It requires writing glue code for every class that wishes to do some event processing.

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  • C# Open Source/Free Social Networking SDK

    - by Nix
    I am currently gathering some technology requirements for a site that will be a social network based. I don't want to re-invent the wheel so i am looking for some type of SDK or collection of tools that can provide me with a way of creating/managing a social network. I understand that no framework will probably fit my exact needs so I am also looking for a flexible/extendable framework. An example extension point would be allowing the user to provide sub networks, maybe a global network that could be sub classified as work and friends. Beyond that it would also be nice to somehow be able to import contacts from other networking sites (Facebook, Linked In, etc). My current technology suite will more than likely consist of the following: IIS 7.0 WCF Data Services SQL Server 2006 ASP.NET front end. So my two questions are 1) C# Open Source Social Network SDK 2) C# Open Source Social Netowrk APIs (facebook, linked in, etc) If there is any more information you may need please let me know.

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