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• Writing Web "server less" applications

  - by crodjer

  TL;DR What are the prospects of write applications which are completely based on a REST database server (CouchDB) and web applications which directly access the DB instead of having a web server in between? I recently started looking up some NoSQL databases. MongoDB seems to be a popular choices. I also liked the project. But I personally liked the REST interface of CouchDB. So what I wanted to know is if there was the possibility of applications (maybe cached apps in web browser, a chrome extension etc.) which could just just query the database directly with no requirement of a webserver in between. All the computational logic would reside in the client application and the database will do what it does, CRUD. Since mostly (I don't know which doesn't) client frameworks support REST quaries, it could be a good way writing applications well optimized for respective framework. These applications though won't be doing complicated computation, but still provide enough functionality which could replace lots of conventional applications. Are existing resources and projects which would help me move towards writing such applications and also the scope and moving towards developing in this way? Are their any technical/security issues with this? This post will help me decide to look into project like CouchDB (and maybe Dive into Erlang later) or stay with the conventional frameworks (like django) and SQL databases. Update A specific point of such apps I had in mind is creation of offline applications just by replicating couchdb data on client.

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• Image Magick and Ghostscript

  - by user114671

  I mainly do web design but I host a few client sites on a Centos 5 VPS. A new client has asked me to host their site and I've been given the following configuration requirement: Apache 2.2.3 PHP 5.2.17 MySQL 5.0.77 Image Magick 6.5.1-0 (not as an Apache module) Ghostscript 8.7 Checking php_info() I have: Apache 2.2.3 PHP 5.2.14 MySQL 5.0.90 I don't have IM or GS listed. I expect that my versions of PHP and MySQL are similar enough to work, but how do I get my server set up to work with this client's site as well?

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• Getting Started Plugging into the "Find in Projects" Dialog

  - by Geertjan

  In case you missed it amidst all the code in yesterday's blog entry, the "Find in Projects" dialog is now pluggable. I think that's really cool. The code yesterday gives you a complete example, but let's break it down a bit and deconstruct down to a very simple hello world scenario. We'll end up with as many extra tabs in the "Find in Projects" dialog as we need, for example, three in this case:  And clicking on any of those extra tabs will, in this simple example, simply show us this: Once we have that, we'll be able to continue adding small bits of code over the next few blog entries until we have something more useful. So, in this blog entry, you'll literally be able to display "Hello World" within a new tab in the "Find in Projects" dialog: import javax.swing.JComponent; import javax.swing.JLabel; import org.netbeans.spi.search.provider.SearchComposition; import org.netbeans.spi.search.provider.SearchProvider; import org.netbeans.spi.search.provider.SearchProvider.Presenter; import org.openide.NotificationLineSupport; import org.openide.util.lookup.ServiceProvider; @ServiceProvider(service = SearchProvider.class) public class ExampleSearchProvider1 extends SearchProvider { @Override public Presenter createPresenter(boolean replaceMode) { return new ExampleSearchPresenter(this); } @Override public boolean isReplaceSupported() { return false; } @Override public boolean isEnabled() { return true; } @Override public String getTitle() { return "Demo Extension 1"; } public class ExampleSearchPresenter extends SearchProvider.Presenter { private ExampleSearchPresenter(ExampleSearchProvider1 sp) { super(sp, true); } @Override public JComponent getForm() { return new JLabel("Hello World"); } @Override public SearchComposition composeSearch() { return null; } @Override public boolean isUsable(NotificationLineSupport nls) { return true; } } } That's it, not much code, works fine in NetBeans IDE 7.2 Beta, and is easier to digest than the big chunk from yesterday. If you make three classes like the above in a NetBeans module, and you install it, you'll have three new tabs in the "Find in Projects" dialog. The only required dependencies are Dialogs API, Lookup API, and Search in Projects API. Read the javadoc linked above and then in next blog entries we'll continue to build out something like the sample you saw in yesterday's blog entry.

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• DB Schema for ACL involving 3 subdomains

  - by blacktie24

  Hi, I am trying to design a database schema for a web app which has 3 subdomains: a) internal employees b) clients c) contractors. The users will be able to communicate with each other to some degree, and there may be some resources that overlap between them. Any thoughts about this schema? Really appreciate your time and thoughts on this. Cheers! -- -- Table structure for table locations CREATE TABLE IF NOT EXISTS locations ( id bigint(20) NOT NULL, name varchar(250) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; -- -- Table structure for table privileges CREATE TABLE IF NOT EXISTS privileges ( id int(11) NOT NULL AUTO_INCREMENT, name varchar(255) NOT NULL, resource_id int(11) NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=10 ; -- -- Table structure for table resources CREATE TABLE IF NOT EXISTS resources ( id int(11) NOT NULL AUTO_INCREMENT, name varchar(255) NOT NULL, user_type enum('internal','client','expert') NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ; -- -- Table structure for table roles CREATE TABLE IF NOT EXISTS roles ( id int(11) NOT NULL AUTO_INCREMENT, name varchar(255) NOT NULL, type enum('position','department') NOT NULL, parent_id int(11) DEFAULT NULL, user_type enum('internal','client','expert') NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ; -- -- Table structure for table role_perms CREATE TABLE IF NOT EXISTS role_perms ( id int(11) NOT NULL AUTO_INCREMENT, role_id int(11) NOT NULL, privilege_id int(11) NOT NULL, mode varchar(250) NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ; -- -- Table structure for table users CREATE TABLE IF NOT EXISTS users ( id int(10) unsigned NOT NULL AUTO_INCREMENT, email varchar(255) NOT NULL, password varchar(255) NOT NULL, salt varchar(255) NOT NULL, type enum('internal','client','expert') NOT NULL, first_name varchar(255) NOT NULL, last_name varchar(255) NOT NULL, location_id int(11) NOT NULL, phone varchar(255) NOT NULL, status enum('active','inactive') NOT NULL DEFAULT 'active', PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=4 ; -- -- Table structure for table user_perms CREATE TABLE IF NOT EXISTS user_perms ( id int(11) NOT NULL AUTO_INCREMENT, user_id int(11) NOT NULL, privilege_id int(11) NOT NULL, mode varchar(250) NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ; -- -- Table structure for table user_roles CREATE TABLE IF NOT EXISTS user_roles ( id int(11) NOT NULL, user_id int(11) NOT NULL, role_id int(11) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1;

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• Methodologies for performance-testing a WAN link

  - by Chopper3

  We have a pair of new diversely-routed 1Gbps Ethernet links between locations about 200 miles apart. The 'client' is a new reasonably-powerful machine (HP DL380 G6, dual E56xx Xeons, 48GB DDR3, R1 pair of 300GB 10krpm SAS disks, W2K8R2-x64) and the 'server' is a decent enough machine too (HP BL460c G6, dual E55xx Xeons, 72GB, R1 pair of 146GB 10krpm SAS disks, dual-port Emulex 4Gbps FC HBA linked to dual Cisco MDS9509s then onto dedicated HP EVA 8400 with 128 x 450GB 15krpm FC disks, RHEL 5.3-x64). Using SFTP from the client we're only seeing about 40Kbps of throughput using large (2GB) files. We've performed server to 'other local server' tests and see around 500Mbps through the local switches (Cat 6509s), we're going to do the same on the client side but that's a day or so away. What other testing methods would you use to prove to the link providers that the problem is theirs?

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• What reasons are there to reduce the max-age of a logo to just 8 days? [closed]

  - by callum

  Most websites set max-age=31536000 (1 year) on the Cache-control headers of static assets such as logo images. Examples: YouTube Yahoo Twitter BBC But there is a notable exception: Google's logo has max-age=691200 (8 days). I've checked the headers on the Google logo in the past, and it definitely used to be 1 year. (Also, it used to be part of a sprite, and now it is a standalone logo image, but that's probably another question...) What could be valid technical reasons why they would want to reduce its cache lifetime to just 8 days? Google's homepage is one of the most carefully optimised pages in the world, so I imagine there's a good reason. Edit: Please make sure you understand these points before answering: Nobody uses short max-age lifetimes to allow modifying a static asset in future. When you modify it, you just serve it at a different URL. So no, it's nothing to do with Google doodles. Think about it: even if Google didn't understand this basic trick of HTTP, 8 days still wouldn't be appropriate, as only those users who don't have the original logo cached would see the doodle on doodle-day – and then that group of users would go on seeing the doodle for the following 8 days after Google changed it back :) Web servers do not worry about "filling up" the caches of clients (or proxies). The client manages this by itself – when it hits its own storage limit, it just starts dropping the lowest priority items to make space for new items. The priority score is based on the question "How likely am I to benefit from having cached this URL?", which is nothing to do with what max-age value the server sent when the URL was originally requested; it's a heuristic based on the "frecency" of requests for that URL. The max-age simply lets the server set a cut-off point – the time at which the client is supposed to discard the item regardless of how often it's being re-used. It would be very nice and trusting of a downstream client/proxy to rely on all origin servers "holding back" from filling up their caches, but I don't think we live in that world ;)

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• OS X clients ignoring Windows print server permissions

  - by Ilumiari

  I'm in the process of testing a Windows Server 2008 R2 print server for a mixed OS X/Windows environment. Any security permissions (AD groups) I set for the printers on the print server are not honoured by the OS X clients. Only if I remove absolutely all permissions for a given printer will an OS X client not print to that printer. The Windows clients honour the permissions as expected. The PrintService log doesn't record any activity when an unprivileged Windows client attempts to print, and records a typical print job when an unprivileged OS X client attempts to print. Has anyone encountered this problem before and have a fix? With 600-700 clients, a number of which are dual-booting, restricting by IP address is not viable. EDIT: The jobs are definitely going through the print server, they show up in the logs with their AD credentials.

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• capture nimbuzz traffic

  - by lurscher

  I need to capture all the traffic, specially during login, between nimbuzz pc client and nimbuzz server. The reason is that i need to debug outgoing packets at login that mark the user visibility status in order to reproduce them in a in-house XMPP client application I've tried doing this with wireshark, but i seem to be pretty helpless with this tool. Also, the packets i've been able to see are all before the SASL negotiation happens, after that, i cannot see the xml packets being exchanged any help for how to achieve this task is greatly appreciated (preferably on Windows, since there is no nimbuzz client for linux, in any case i can install one in a VM and monitor the traffic between the VM instance in the linux host)

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• Standard Network Tiers in a Distributed N-Tier System

  Distributed N-Tier client/server architecture allows for segments of an application to be broken up and distributed across multiple locations on a network.  Listed below are standard tiers in a Distributed N-Tier System. End-User Client Tier The End-User Client is responsible for sending and receiving requests from web servers and other applications servers and translating the responses so that the End-User can interpret the data effectively. The primary roles for this tier are to communicate with servers and translate server responses back to the end-user to interpret. Business-Specific Functions Validate Data Display Data Send Data to Webserver Web Server Tier The Web server tier processes new requests for information coming in from the HTTP and HTTPS ports. This primarily handles the generation of user interfaces and calls the application server when needed to access Data and business logic when needed. Business-specific functions Send Data to application server Format Data for Display Validate Data Application Server Tier The application server stores and executes predefined business logic that is applied to various pieces of data as the business determines. The processed data is then returned back to the Webserver. Additionally, this server directly calls the database to obtain and store any data used by the system Business-Specific Functions Validate Data Process Data Send Data to Database Server Database Server Tier The Database Server is responsible for storing and returning all data need by the calling applications. The primary role for this this server is storage. Data is stored as needed and can be recalled at any point later in time. Business-Specific Functions Insert Data Delete Data Return Data to Application Server

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• CodePlex Daily Summary for Sunday, November 03, 2013

  CodePlex Daily Summary for Sunday, November 03, 2013Popular ReleasesuComponents: uComponents v6.0.0: This release of uComponents will compile against and support the new API in Umbraco v6.1.0. What's new in uComponents v6.0.0? New DataTypesImage Point XML DropDownList XPath Templatable List New features / Resolved issuesThe following workitems have been implemented and/or resolved: 14781 14805 14808 14818 14854 14827 14868 14859 14790 14853 14790 DataType Grid 14788 14810 14873 14833 14864 14855 / 14860 14816 14823 Drag & Drop support for rows Su...SmartStore.NET - Free ASP.NET MVC Ecommerce Shopping Cart Solution: SmartStore.NET 1.2.1: New FeaturesAdded option Limit to current basket subtotal to HadSpentAmount discount rule Items in product lists can be labelled as NEW for a configurable period of time Product templates can optionally display a discount sign when discounts were applied Added the ability to set multiple favicons depending on stores and/or themes Plugin management: multiple plugins can now be (un)installed in one go Added a field for the HTML body id to store entity (Developer) New property 'Extra...WPF Extended DataGrid: WPF Extended DataGrid 2.0.0.9 binaries: Fixed issue with ICollectionView containg null values (AutoFilter issue)Community TFS Build Extensions: October 2013: The October 2013 release contains Scripts - a new addition to our delivery. These are a growing library of PowerShell scripts to use with VS2013. See our documentation for more on scripting. VS2010 Activities(target .NET 4.0) VS2012 Activities (target .NET 4.5) VS2013 Activities (target .NET 4.5.1) Community TFS Build Manager VS2012 Community TFS Build Manager VS2013 The Community TFS Build Managers for VS2010, 2012 and 2013 can also be found in the Visual Studio Gallery where upda...WMI Inventory Client: WMI Inventory Client: WMI Inventory Client ?????????????? ?????????????? ?? WMISuperSocket, an extensible socket server framework: SuperSocket 1.6 stable: Changes included in this release: Process level isolation SuperSocket ServerManager (include server and client) Connect to client from server side initiatively Client certificate validation New configuration attributes "textEncoding", "defaultCulture", and "storeLocation" (certificate node) Many bug fixes http://docs.supersocket.net/v1-6/en-US/New-Features-and-Breaking-ChangesFile System Explorer: Beta 1: Try me and please give feedback via Discussions and issues Installation: Download the zip file Unblock it Unzip to a suitable location Just run Filesystemexplorer.exe Enjoy Updates: V1.1 Beta: Fixed some low level file search issuesBarbaTunnel: BarbaTunnel 8.1: Check Version History for more information about this release.Mugen MVVM Toolkit: Mugen MVVM Toolkit 2.1: v 2.1 Added the 'Should' class instead of the 'Validate' class. The 'Validate' class is now obsolete. Added 'Toolkit.Annotations' to support the Mugen MVVM Toolkit ReSharper plugin. Updated JetBrains annotations within the project. Added the 'GlobalSettings.DefaultActivationPolicy' property to represent the default activation policy. Removed the 'GetSettings' method from the 'ViewModelBase' class. Instead of it, the 'GlobalSettings.DefaultViewModelSettings' property is used. Updated...SharePoint User Permission Check: SP User Permission Check: Modified Current.Web.Title in output label.TFS Event Workflows: TFS Event Workflows 0.10.41576.0 - TFS 2012-2013: Supports TFS 2012 and TFS 2013 For a TFS 2010 version look at https://tfseventworkflows.codeplex.com/releases/view/102444 New Features multiple application tiers storage of workflows, configurations and activities in the version control support for async execution in TFS job agent selection of collection/project filters in config file simple disable in config file simplified configurationCrowd CMS: Crowd CMS FREE - Official Release: This is the original source files for Crowd CMS Free (v1.0.0) and is the latest stable release which has been bug-tested and fixed.Sea Dragon AJAX Viewer Web Part: Sea Dragon Ajax Web Part: The Seadragon Viewer WSP and companion literature. There are three seperate guides that explain how to get up and running: - Seadragon Viewer Web Part Installation Guide Creating Deep Zoom Images for Seadragon Viewer Bringing it all together These guides are currently very basic and are offered as guides for getting full usage out Seadragon. Please post any suggestions for further documentation in the discussions forumProject Nonnon: 2013_10_30: ----------==========----------==========----------==========---------- "No news is good news." ----------==========----------==========----------==========---------- Change Log 2013/10/30 BUGFIX win32/explorer.c n_explorer_path_get() : comment OLD : typo NEW : fixed Felis Win8 or latert : Link Maker OLD : not function in some cases NEW : fixed Nyaurism Formatter : byte count label : when resized OLD : text will be broken NEW : fixed NEW_FEATURE win...NAudio: NAudio 1.7: full release notes available at http://mark-dot-net.blogspot.co.uk/2013/10/naudio-17-release-notes.htmlFormula Calculation Toolkit: FCT Library: Alfa release for Formula Calculation Toolkit.WebExtras: v1.3.0 Beta: Enh: Adding support for Bootstrap 3.x Enh: Adding support for Gumby 2.5.x Enh: Adding a new string extension Remove() to remove occurences of given string Enh: Adding a ToDictionary() for name value collections Enh: The dataTable sort extension is now a little more intelligent and robust Enh: General under the hood code enhancements Fix: Hyperlink extensions now handle MVC Areas Fix: Marking JsFunc as serializable otherwise when using the ASP.NET State Server, the object does no...DirectX Tool Kit: October 2013: October 28, 2013 Updated for Visual Studio 2013 and Windows 8.1 SDK RTM Added DGSLEffect, DGSLEffectFactory, VertexPositionNormalTangentColorTexture, and VertexPositionNormalTangentColorTextureSkinning Model loading and effect factories support loading skinned models MakeSpriteFont now has a smooth vs. sharp antialiasing option: /sharp Model loading from CMOs now handles UV transforms for texture coordinates A number of small fixes for EffectFactory Minor code and project cleanup ...ExtJS based ASP.NET Controls: FineUI v4.0beta1: +2013-10-28 v4.0 beta1 +?????Collapsed???????????????。 -????：window/group_panel.aspx??，???????，???????，?????????。 +??????SelectedNodeIDArray???????????????。 -????：tree/checkbox/tree_checkall.aspx??，?????，?????，????????????。 -??TimerPicker???????（????、????ing）。 -??????????????????????（???）。 -?????????????，??type=text/css（??~`）。 -MsgTarget???MessageTarget，???None。 -FormOffsetRight?????20px??5px。 -?Web.config?PageManager??FormLabelAlign???。 -ToolbarPosition??Left/Right。 -??Web.conf...CODE Framework: 4.0.31028.0: See change notes in the documentation section for details on what's new. Note: If you download the class reference help file with, you have to right-click the file, pick "Properties", and then unblock the file, as many browsers flag the file as blocked during download (for security reasons) and thus hides all content.New Projects.NET Site Storage: Write .NET code to use an abstract storage system that can work with a variety of storage, such as local file system and Azure blob.Asp.net Mvc Ajax Infinite Scroll: Asp.net Mvc 4 Ajax Json Infinite Scrollblueblue: tetCar: CArCSharp Generic Data Access: Yet another generic data access for .NETDotNet Manuals: DotNet Manuals aims to provide developers an easy way to create, manage and distribute manuals and various documentation for their applications and libraries.EIB Watcher .Net Library: .Net Library for EIB/NKX bus accessopenGamification: This intends to become an open source gamification framework based on TypeScript.PaginaWebCursoNetAcc: aSimple Person Manager: The application accepts POST requests with JSON data about a Person, stored the values in Azure Table Storage and accepts GET requests to retrieve it back.Stock Track: If you have a small retail store with simple stock management and tracking requirements, this program might work for you. Stock Track easily categorises your ptrapawebapp: testVisualStateManager: This is a simple, but quite powerful mechanism allowing you to separate the application UI from application logic in Windows Forms.Yet Another VirtualBox ToolSet: This is going to be another VirtualBox Toolset.Zodinet: Co ca ngua

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• Code to simulate a users actions, such as logging in

  - by Gortron

  I've recently begun working on a PHP application, replacing another developer. I believed the application was using an API to communicate with a remote service but when I looked through the code I found that it was using a set of functions to actually log in, fill out forms and submit them as a user might do in a browser. My intention is to replace this code, to use the services API instead. I've considered leaving the code as is and not replace it. It makes me wonder though is this a common practice in the software industry? To have a programme simulate a users actions in a browser to perform a set of actions? It feels to me that this is clever but poor programming, Have any other developers seen this?

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• Firewall GPO not applying despite being enumerated by gpresult

  - by jshin47

  I have a need to open up the admin$ share on all of my domain's client PC's and I am trying to do so using group policy. I defined computer policy for Windows Firewall with Advanced Security in a policy object linked to the appropriate container and added the appropriate rules. However, they are not being applied! I feel like I have tried all of the obvious steps: I've checked gpresult and the resulting set of policy is the way that I would expect it to look. I've gpupdate /force and gpupdate /sync on a few client computers, but no matter what I do they don't seem to respond to my changes. I know that other computer policies in the GPO are being applied so it is strange that these are not. I have also disabled exceptions on clients in the firewall GPO, but that doesn't seem to be applying either. Here is a screenshot of the firewall.cpl from a client: Basically, although other options in the same GPO ARE applied for computer policy, the firewall settings seem to be ignored.

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• IE 8 doesn't appear to clear cache on demand. Is anyone else seeing this?

  - by Steve

  I have a client that uploads updated pdf files to her Concrete5 CMS, through the file manager, replacing the old file with the same name. She then does a cms "clear cache" and exits as she should. Then, in testing, she finds that the old file still comes up when clicking on the link. On further review, the cms file manager version tracking shows that the file has been updated, and, for me, the new file comes up, as it should, when clicking the link. My client hase also refreshed her browser cache and still, she only gets the old file when clicking on the link. She says that, while she can't seem to force an immediate cache update, overnight it appears to update. My client is also part of a large company-wide lan and intranet. Is it possible that there is a cache function placed outside of her local browser and cms cache that is not updating?

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• Comprehensive system for documentation and handoff of developer project

  - by Uzumaki Naruto

  I work on a technology team that typically develops projects for a period of time, and then hands off to other groups for long-term maintenance and improvements. My team currently uses ad hoc methods of handing off documentations, such as diagrams, API references, etc. Is there a open source solution (or even proprietary one) that enables us to manage: Infrastructure/architecture/software diagrams API documentation Directory structures/file structures Overall documentation summaries in one place? E.g., instead of using multiple systems like Swagger, Wikis, etc. - is there a solution that can seamlessly combine all of these? And enable us to generate a package including all 4 key items with one click to hand off to other teams.

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• java framework for a web wizard

  - by snippl

  I'd like to create a web wizard or a wizard on/within a website. I know there are several java frameworks for wizards but there is none for the web in particular. If I search for a framework, I always get wizards to create a website, applet, servlet and what not. But never how to create such a wizard itself. So the question(s) is: What framework should I use to create a web wizard? And what frameworks are there? The wizard will be the visualisation for a BPEL Process deployment on a apache ode. I thought a webapp would be an easy way because the apache is running anyway. I'm not bound to that, perhaps someone has a better idea.

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• Cleaning a dataset of song data - what sort of problem is this?

  - by Rob Lourens

  I have a set of data about songs. Each entry is a line of text which includes the artist name, song title, and some extra text. Some entries are only "extra text". My goal is to resolve as many of these as possible to songs on Spotify using their web API. My strategy so far has been to search for the entry via the API - if there are no results, apply a transformation such as "remove all text between ( )" and search again. I have a list of heuristics and I've had reasonable success with this but as the code gets more and more convoluted I keep thinking there must be a more generic and consistent way. I don't know where to look - any suggestions for what to try, topics to study, buzzwords to google?

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• Is hierarchical product backlog a good idea in TFS 2012-2013?

  - by Matías Fidemraizer

  I'd like to validate I'm not in the wrong way. My team project is using Visual Studio Scrum 2.x. Since each area/product has a lot of kind of requirements (security, user interface, HTTP/REST services...), I tried to manage this creating "parent backlogs" which are "open forever" and they contain generic requirements. Those parent backlogs have other "open forever" backlogs, and/or sprint backlogs. For example: HTTP/REST Services (forever) ___ Profiles API (forever) ________ POST profile (forever) _______________ We need a basic HTTP/REST profiles' API to register new user profiles (sprint backlog) Is it the right way of organizing the product backlog? Note: I know there're different points of view and that would be right for some and wrong for others. I'm looking for validation about if this is a possible good practice on TFS with Visual Studio Scrum.

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• Protocol Security With PPTP

  - by why

  I find these words in pptp client source : Summary by Peter Mueller PPTP is known to be a faulty protocol. The designers of the protocol, Microsoft, recommend not to use it due to the inherent risks. Lots of people use PPTP anyway due to ease of use, but that doesn't mean it is any less hazardous. The maintainers of PPTP Client and Poptop recommend using OpenVPN (SSL based) or IPSec instead. (Posted on [1]2005-08-10 to the [2]mailing list) But as far as i know, there are many people use PPTP as a VPN, because there is no need to install client on windows, what do you think about pptp ?

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• Accessing SQL Server data from iOS apps

  - by RobertChipperfield

  Almost all mobile apps need access to external data to be valuable. With a huge amount of existing business data residing in Microsoft SQL Server databases, and an ever-increasing drive to make more and more available to mobile users, how do you marry the rather separate worlds of Microsoft's SQL Server and Apple's iOS devices? The classic answer: write a web service layer Look at any of the questions on this topic asked in Internet discussion forums, and you'll inevitably see the answer, "just write a web service and use that!". But what does this process gain? For a well-designed database with a solid security model, and business logic in the database, writing a custom web service on top of this just to access some of the data from a different platform seems inefficient and unnecessary. Desktop applications interact with the SQL Server directly - why should mobile apps be any different? The better answer: the iSql SDK Working along the lines of "if you do something more than once, make it shared," we set about coming up with a better solution for the general case. And so the iSql SDK was born: sitting between SQL Server and your iOS apps, it provides the simple API you're used to if you've been developing desktop apps using the Microsoft SQL Native Client. It turns out a web service remained a sensible idea: HTTP is much more suited to the Big Bad Internet than SQL Server's native TDS protocol, removing the need for complex configuration, firewall configuration, and the like. However, rather than writing a web service for every app that needs data access, we made the web service generic, serving only as a proxy between the SQL Server and a client library integrated into the iPhone or iPad app. This client library handles all the network communication, and provides a clean API. OSQL in 25 lines of code As an example of how to use the API, I put together a very simple app that allowed the user to enter one or more SQL statements, and displayed the results in a rather primitively formatted text field. The total amount of Objective-C code responsible for doing the work? About 25 lines. You can see this in action in the demo video. Beta out now - your chance to give us your suggestions! We've released the iSql SDK as a beta on the MobileFoo website: you're welcome to download a copy, have a play in your own apps, and let us know what we've missed using the Feedback button on the site. Software development should be fun and rewarding: no-one wants to spend their time writing boiler-plate code over and over again, so stop writing the same web service code, and start doing exciting things in the new world of mobile data!

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• EMC Gives Exchange Users New Disaster Recovery Tools

  EMC taps into a Microsoft API to offer new data replication, disaster recovery and storage networking tools.

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• UDP multicast streaming of media content over WIFI

  - by sajad

  I am using vlc to stream media content over wireless network in scenario like this (from content streamer to stream receiver client): The bandwidth of wireless network is 54 Mb/s and UDP stream's required bandwidth is only 4 Mb/s; however there is trouble in receiving media stream and quality of playing specifically in multicast mode; means I can play the stream but it has jitter and does not play smoothly. In uni-cast I can stream up to 5 media streams correctly, but in multicast mode there is problem with streaming just one media! However when I stream from client some multicast streams; the wifi access-point can receive data correctly and I can see the video in "udp streamer" side correctly even when number of multicast streams increases to 9; But as you see I want to stream from streaming server and receive media in client size. Is this a typical problem of streaming real-time contents over wireless networks? Is it necessary to change configurations of my WIFI switch or it is just a software trouble? thank you

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• Call For Papers Oracle Open World 2011

  - by Jürgen Kress

  You want to attend Oracle Open World 2011? Make sure you submit your paper to become a speaker and receive a free full conference pass! General Information Submission Information Content Program Policies Tips and Guidelines What papers we would like to see? Your SOA & BPM success stories using our OFM11g technology. Make sure you talk about best practice, methodology and lessons learned maybe together with your customers. We are highly interested how you do use the complete stack e.g. ADF, OER, OSR, OSB,  BPEL, BPMN, Webcenter, E2.0 and BI within your projects. For additional call for papers please visit our wiki. For more information about our SOA Partner Community activities at OOW 2011 become a member for registration please visit www.oracle.com/goto/emea/soa (OPN account required) Blog Twitter LinkedIn Mix Forum Wiki Website Technorati Tags: Call for papers,Oracle Open World,Oracle Open World 2011,OOW,OOW 2011,Oracle,OPN,Jürgen Kress

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• LuaJit FFI and hiding C implementation details

  - by wirrbel

  I would like to extend an application using LuaJit FFI. Having seen http://luajit.org/ext_ffi_tutorial.html this is surprisingly easy when comparing this to the Lua C API. So far so good. However I do not plainly want to wrap C functions but provide a higher level API to users writing scripts for the application. Especially I do not want users to be able to access "primitives", i.e. the ffi.* namespace. Is this possible or will that ffi namespace be available to user's Lua scripts? On the issue of Sandboxing Lua I found http://lua-users.org/wiki/SandBoxes which is not talking about FFI though. Furthermore, the plan I have described above is assuming that the introduction of abstraction layers happens on the lua side of code. Is this an advisable approach or would you rather abstract functionality on the statically compiled code (on the C-side)?

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• Reconstruct a file from a TCP stream

  - by Abhishek Chanda

  I have a client and a server and a third box which sees all packets from the server to the client (but not the other way around). Now when the client requests a file from the server (over HTTP), the third box sees the response. I am trying to reconstruct the file there. I am using libpcap to capture TCP datagrams and trying to reconstruct the file there. Here is what I did Listen for packets on an interface Group all packets which have the same ACK number Sort the group based on SEQ number Extract data from each packet and combine them and write to the disk The problem is, the file thus generated is not exactly the same as the original file. Does everything sound correct here? Some more details: I am using C++ The packet data is being stored as std::vector<char> I did change the byte order while reading the ack number and seq number from the packet using ntohl I am not sure if I need to change the byte order for the data as well. I tried to reverse the data from each packet before combining them, even that did not work. Is there something I am missing?

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• Looking for something like Google's Picasa [closed]

  - by Skizz

  I almost like Picasa, but there are two issues that irk me and I wondered if anyone knew of an application that does what Picasa does but without the following problems: Network drives. Picasa is hopeless with network drives. Ideally, I'd like photos to be stored remotely and thumbnail databases to be stored locally with a client-server set-up to update client databases. The main aim is to get updates propagated to clients efficently, reduce network bandwidth and have quick browsing on the client. It needs to be snappy when used over a wireless network. This is just a minor point but the folder view looks awful, especially when it uses those tiny thumbnails. (Also, what is it with folders being drawn vertically. Having spent years looking at folders orientated horizontally, turning them on their side looks so wrong.)

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