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• Operation times out trying to SSH outside LAN i.e. from internet to LAN no connection is established

  - by Pelle L

  I run Ubuntu 12.04 and have no success connecting with SSH from "Internet". The router is a TL-MR3420 which is set up to forward requests to one of the NIC's on ubuntu machine (which has in total 3 NICs). I can SSH from a client on the "local" network/LAN. The forward mechanism in the router seems to work. If I stop SSH service on the Ubuntu machine and instead start one on the windows machine - it works like a charm. I do not use the Std port 22 but that shouldn't be an issue as far as I understand - sine it works on the same port on the win machine. Since my public IS isn't static I use a dynDNS service but as said earlier the same setup works from the win machine. The router is located on 192.168.0.1 The Ubuntu NICs has the following IP: eth2 192.168.0.100 , eth1 192.168.0.101 , eth0 192.168.0.102 and I have forwarded the "outside" request to 192.168.0.100 In regards for firewall settings on the Ubuntu machine I have disabled the ufw and the command ufw status give status: inactive. I don't now it this is relevant information but teh command iptables --list give: 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 tried to catch traffic with help of wireshark (a tool I'm not too used to use) and it seems as a few (3?) "requests" actually reaches the NIC but ... nothing happens. The syslog does not show any entries during these attempts. Perhaps it could be some routing issues but I have reached my level of competence and are stuck ... all help and support to get this sorted out is much appreciated. I'm new to Linux so please do not assume I have a configuration that is correct - but as I wrote earlier - if the client that initiate SSH is on the LAN it all works. PS:I have also tried to get VPN (PPP) working from Internet with no success - once again VPN works on the windows machine ... so my best guess is that this is related to how the ubuntu machine handles (IP) traffic and not the TL-MR3420 router or other network issues.

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• Application using JOGL stays in Limbo when closing

  - by Roy T.

  I'm writing a game using Java and OpenGL using the JOGL bindings. I noticed that my game doesn't terminate properly when closing the window even though I've set the closing operation of the JFrame to EXIT_ON_CLOSE. I couldn't track down where the problem was so I've made a small reproduction case. Note that on some computers the program terminates normally when closing the window but on other computers (notably my own) something in the JVM keeps lingering, this causes the JFrame to never be disposed and the application to never exit. I haven't found something in common between the computers that had difficulty terminating. All computers had Windows 7, Java 7 and the same version of JOGL and some terminated normally while others had this problem. The test case is as follows: public class App extends JFrame implements GLEventListener { private GLCanvas canvas; @Override public void display(GLAutoDrawable drawable) { GL3 gl = drawable.getGL().getGL3(); gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); gl.glClear(GL3.GL_COLOR_BUFFER_BIT); gl.glFlush(); } // The overrides for dispose (the OpenGL one), init and reshape are empty public App(String title, boolean full_screen, int width, int height) { //snipped setting the width and height of the JFRAME GLProfile profile = GLProfile.get(GLProfile.GL3); GLCapabilities capabilities = new GLCapabilities(profile); canvas = new GLCanvas(capabilities); canvas.addGLEventListener(this); canvas.setSize(getWidth(), getHeight()); add(canvas); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //!!! setVisible(true); } @Override public void dispose() { System.out.println("HELP"); // } public static void main( String[] args ) { new App("gltut 01", false, 1280, 720); } } As you can see this doesn't do much more than adding a GLCanvas to the frame and registering the main class as the GLEventListener. So what keeps lingering? I'm not sure. I've made some screenshots. The application running normally. The application after the JFrame is closed, note that the JVM still hasn't exited or printed a return code. The application after it was force closed. Note the return code -1, so it wasnt just the JVM standing by or something the application really hadn't exited yet. So what is keeping the application in Limbo? Might it be the circular reference between the GLCanvas and the JFrame? I thought the GC could figure that out. If so how should I deal with that when I want to exit? Is there any other clean-up required when using JOGL? I've tried searching but it doesn't seem to be necessary. Edit, to clarify: there are 2 dispose functions dispose(GLAutoDrawable arg) which is a member of GLEventListener and dispose() which is a member of JFrame. The first one is called correctly (but I wouldn't know what to there, destroying the GLAutoDrawable or the GLCanvas gives an infinite exception loop) the second one is never called.

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• Expected visual behavior of notifications (gnome metacity)

  - by MetaChrome

  I sometimes see notification popups on the right of the screen that specify things like network connectivity status changes mainly. I don't understand their expected visual behavior in that: It would appear that sometimes, when you move your mouse close to them, they disappear to reappear when you move away. It does not appear to be possible to ever click on them or hide them in any way, they generally just flicker, often in a in determinant way. Is the flickering perhaps caused because every flicker is in fact a unique notification?

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• Your mail merging options with Thunderbird

  <b>Worldlabel:</b> "If you use the open source Mozilla Thunderbird email client, you're probably familiar with its powerful address book features: import and export, online status information for your friends, even synchronization. But one thing that's not so obvious is how to do a mail merge to your address book contacts."

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• 12 Must Have Google Chrome Extensions For Web Designers

  <b>Tech Drive-In:</b> "Google Chrome extensions pool is growing and growing fast. Firefox has been the primary tool for web developers for a long time now. Tools like Firebug in Firefox has taken cult status among web developers. But things are slowly changing now and a number of good alternatives for Firefox web developer extensions can be found among Google Chrome extensions too."

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• Secure Your Future While Sitting at Home

  Gaining education and then achieving a quality degree is thought to be a very devoting and scheduled task in previous times. People set aims and then strive for it the whole of their lives. The aim or goal which would be taken in the context of professional status or qualification over here was usually a typical profession which was famous at the hour.

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• cannot install firmware-b43-installer

  - by unknown

  output i get when installing the installArchives() failed: Preconfiguring packages ... Preconfiguring packages ... Preconfiguring packages ... Selecting previously deselected package menu. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 216125 files and directories currently installed.) Unpacking menu (from .../menu_2.1.44ubuntu1_i386.deb) ... Selecting previously deselected package wifi-radar. Unpacking wifi-radar (from .../wifi-radar_2.0.s05-1.2_all.deb) ... Processing triggers for man-db ... Processing triggers for install-info ... Processing triggers for doc-base ... Processing 1 added doc-base file(s)... Registering documents with scrollkeeper... Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Processing triggers for desktop-file-utils ... Processing triggers for python-gmenu ... Rebuilding /usr/share/applications/desktop.en_US.UTF8.cache... Processing triggers for python-support ... Setting up firmware-b43-installer (4.150.10.5-5) ... --2012-10-26 08:51:30-- http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2 Resolving mirror2.openwrt.org... 46.4.11.11 Connecting to mirror2.openwrt.org|46.4.11.11|:80... failed: Connection refused. dpkg: error processing firmware-b43-installer (--configure): subprocess installed post-installation script returned error exit status 4 No apport report written because MaxReports is reached already Setting up menu (2.1.44ubuntu1) ... Processing triggers for menu ... Setting up wifi-radar (2.0.s05-1.2) ... Processing triggers for menu ... Errors were encountered while processing: firmware-b43-installer Setting up firmware-b43-installer (4.150.10.5-5) ... --2012-10-26 08:51:33-- http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2 Resolving mirror2.openwrt.org... 46.4.11.11 Connecting to mirror2.openwrt.org|46.4.11.11|:80... failed: Connection refused. dpkg: error processing firmware-b43-installer (--configure): subprocess installed post-installation script returned error exit status 4 same thing occurs when i try to install any of the wireless application. All other software installs and the same error when trying to install firmware. I tried to go the link(http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2) and download the package but found no make file found in his package. please help me.

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• Problem with MergeList when using update-manager

  - by bablooshukla

  Could not initialize the package information An unresolvable problem occurred while initializing the package information. Please report this bug against the 'update-manager' package and include the following error message: 'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_precise_multiverse_binary-i386_Packages, E:The package lists or status file could not be parsed or opened.'

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• Ignoring Files and Directories in Subversion for Easier Linux Server Management

  Tip of the Trade: Finding a way to ignore files or directories in Subversion so they are not included in svn status output is easy; figuring out the exact syntax is not. Here's are way to simplify this Linux server management quagmire.

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• Silverlight 4 Twitter Client &ndash; Part 5

  - by Max

  In this post, we will look at implementing the following in our twitter client - displaying the profile picture in the home page after logging in. So to accomplish this, we will need to do the following steps. 1) First of all, let us create another field in our Global variable static class to hold the profile image url. So just create a static string field in that. public static string profileImage { get; set; } 2) In the Login.xaml.cs file, before the line where we redirect to the Home page if the login was successful. Create another WebClient request to fetch details from this url - .xml">http://api.twitter.com/1/users/show/<TwitterUsername>.xml I am interested only in the “profile_image_url” node in this xml string returned. You can choose what ever field you need – the reference to the Twitter API Documentation is here. 3) This particular url does not require any authentication so no need of network credentials for this and also the useDefaultCredentials will be true. So this code would look like. WebRequest.RegisterPrefix("http://", System.Net.Browser.WebRequestCreator.ClientHttp); WebClient myService = new WebClient(); myService.AllowReadStreamBuffering = myService.UseDefaultCredentials = true; myService.DownloadStringCompleted += new DownloadStringCompletedEventHandler(TimelineRequestCompleted_User);) myService.DownloadStringAsync(new Uri("http://api.twitter.com/1/users/show/" + TwitterUsername.Text + ".xml")); 4) To parse the xml file returned by this and get the value of the “profile_image_url” node, the LINQ code will look something like XDocument xdoc; xdoc = XDocument.Parse(e.Result); var answer = (from status in xdoc.Descendants("user") select status.Element("profile_image_url").Value); GlobalVariable.profileImage = answer.First().ToString(); 5) After this, we can then redirect to Home page completing our login formalities. 6) In the home page, add a image tag and give it a name, something like <Image Name="image1" Stretch="Fill" Margin="29,29,0,0" Height="73" VerticalAlignment="Top" HorizontalAlignment="Left" Width="73" /> 7) In the OnNavigated to event in home page, we can set the image source url as below image1.Source = new BitmapImage(new Uri(GlobalVariable.profileImage, UriKind.Absolute)); Hope this helps. If you have any queries / suggestions, please feel free to comment below or contact me. Technorati Tags: Silverlight,LINQ,Twitter API,Twitter

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• SQL Server 2008 R2 Hits RTM, Release in May

  Microsoft today announced that SQL Server 2008 R2 has achieved release-to-manufacturing status and will be released in May worldwide....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• IXRepository and test problems

  - by Ridermansb

  Recently had a doubt about how and where to test repository methods. Let the following situation: I have an interface IRepository like this: public interface IRepository<T> where T: class, IEntity { IQueryable<T> Query(Expression<Func<T, bool>> expression); // ... Omitted } And a generic implementation of IRepository public class Repository<T> : IRepository<T> where T : class, IEntity { public IQueryable<T> Query(Expression<Func<T, bool>> expression) { return All().Where(expression).AsQueryable(); } } This is an implementation base that can be used by any repository. It contains the basic implementation of my ORM. Some repositories have specific filters, in which case we will IEmployeeRepository with a specific filter: public interface IEmployeeRepository : IRepository<Employee> { IQueryable<Employee> GetInactiveEmployees(); } And the implementation of IEmployeeRepository: public class EmployeeRepository : Repository<Employee>, IEmployeeRepository // TODO: I have a dependency with ORM at this point in Repository<Employee>. How to solve? How to test the GetInactiveEmployees method { public IQueryable<Employee> GetInactiveEmployees() { return Query(p => p.Status != StatusEmployeeEnum.Active || p.StartDate < DateTime.Now); } } Questions Is right to inherit Repository<Employee>? The goal is to reuse code once all implementing IRepository already been made. If EmployeeRepository inherit only IEmployeeRepository, I have to literally copy and paste the code of Repository<T>. In our example, in EmployeeRepository : Repository<Employee> our Repository lies in our ORM layer. We have a dependency here with our ORM impossible to perform some unit test. How to create a unit test to ensure that the filter GetInactiveEmployees return all Employees in which the Status != Active and StartDate < DateTime.Now. I can not create a Fake/Mock of IEmployeeRepository because I would be testing? Need to test the actual implementation of GetInactiveEmployees. The complete code can be found on Github

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• Deal Registration is Moving to the Oracle Partner Store!

  - by Cinzia Mascanzoni

  In November 2012, Oracle will unveil a new partner deal registration system within Oracle Partner Store (OPS). At that time, OPS will become the single source for partners to register deals, obtain deal status, and place orders. The new deal registration system will offer several enhancements, including: Simplified Registration Form Easier Product Selection Expanded Browser Support Shared Registration Visibility Between VAD and VAR Pre-set Customer Selection from Partner Ordering Base Read more here.

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• Introducing the PyPy 1.2 release

  <b>PyPy Status Blog:</b> "We are pleased to announce PyPy's 1.2 release. This version 1.2 is a major milestone and it is the first release to ship a Just-in-Time compiler that is known to be faster than CPython"

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• Microsoft Patches Internet Explorer 9, Launches YourBrowserMatter

  Due to the critical status of the Internet Explorer 9 fix, any users with the recommended Windows Update setting of install updates automatically enabled should receive it by default. Microsoft urges users with automatic updates disabled to install the fix manually via Windows Update. IT administrators in charge of handling organizations are urged to do the same using their go-to software for managing patches in-house. Of the eight vulnerabilities targeted by the IE9 update, the most crucial make it possible for remote code execution to occur on PCs where users have visited certain affecte...

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• Application workflow

  - by manseuk

  I am in the planning process for a new application, the application will be written in PHP (using the Symfony 2 framework) but I'm not sure how relevant that is. The application will be browser based, although there will eventually be API access for other systems to interact with the data stored within the application, again probably not relavent at this point. The application manages SIM cards for lots of different providers - each SIM card belongs to a single provider but a single customer might have many SIM cards across many providers. The application allows the user to perform actions against the SIM card - for example Activate it, Barr it, Check on its status etc Some of the providers provide an API for doing this - so a single access point with multiple methods eg activateSIM, getStatus, barrSIM etc. The method names differ for each provider and some providers offer methods for extra functions that others don't. Some providers don't have APIs but do offer these methods by sending emails with attachments - the attachments are normally a CSV file that contains the SIM reference and action required - the email is processed by the provider and replied to once the action has been complete. To give you an example - the front end of my application will provide a customer with a list of SIM cards they own and give them access to the actions that are provided by the provider of each specific SIM card - some methods may require extra data which will either be stored in the backend or collected from the user frontend. Once the user has selected their action and added any required data I will handle the process in the backend and provide either instant feedback, in the case of the providers with APIs, or start the process off by sending an email and waiting for its reply before processing it and updating the backend so that next time the user checks the SIM card its status is correct (ie updated by a backend process). My reason for creating this question is because I'm stuck !! I'm confused about how to approach the actual workflow logic. I was thinking about creating a Provider Interface with the most common methods getStatus, activateSIM and barrSIM and then implementing that interface for each provider. So class Provider1 implements Provider - Then use a Factory to create the required class depending on user selected SIM card and invoking the method selected. This would work fine if all providers offered the same methods but they don't - there are a subset which are common but some providers offer extra methods - how can I implement that flexibly ? How can I deal with the processes where the workflow is different - ie some methods require and API call and value returned and some require an email to be sent and the next stage of the process doesn't start until the email reply is recieved ... Please help ! (I hope this is a readable question and that this is the correct place to be asking) Update I guess what I'm trying to avoid is a big if or switch / case statement - some design pattern that gives me a flexible approach to implementing this kind of fluid workflow .. anyone ?

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• 12.1.3 Spares Management Enhancements Transfer of Information (TOI)

  - by Oracle_EBS

  Transfer of Information (TOI) presentation is available. It covers the following enhancements made to the EBS Spares Management Product: Restrict Sources with no Shipping Network definition Create Internal Order when Source is Manned Warehouse Display Delivery status in Parts Requirement UI Order Sources by distance when Shipping cost remains same Calculate Parts Shipping Distances using Navteq Data Consider Warehouse Calendar to calculate Parts Arrival Date Create Requisitions in Operating Unit of Destination Inventory Org Uptake of HZ address structure in Parts Requirement UI

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• Using an Economical Engine Optimization Ranking Search For Link Popularity

  Have you checked your popularity lately by using an economical engine optimization ranking search? If not, you better check it now - but that's if you care too much for your website's performance. More and more website owners are familiar with link popularity checkers to assess their site's relevance and search status. You don't want to miss link popularity services if you want to stay ahead of the game.

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• SEO Reports - The Importance of Having Proper Reporting

  SEO is a very dynamic and complex process and as important it is for a company to provide the service it is equally important to report it correctly because a webmaster can only know what's going on if he/she gets a detailed report of the status. In case you are opting for an SEO provider it is crucial for you to know the update on the task and therefore reporting becomes a core aspect of an SEO service.

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• Is there a comprehensive list of the Ubuntu services for developers?

  - by tgm4883

  It seems every couple weeks I'm learning about a new service that can be used by developers to either A) get people involved, or B) make life easier for developers. Is there a list of all these services somewhere? Here are a few of them that I have recently found out about. https://errors.ubuntu.com/ http://harvest.ubuntu.com/ http://status.ubuntu.com/ :Edit: Found another. Although not strictly developer related, it's noteworthy https://apps.ubuntu.com

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• Making Search Engine Optimization For Google

  Improving your business status can be achieve with a little bit of search engine optimization. It have high importance in every kind of business that has it is online representation.

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• What is juju doing when my deployment is "pending"? It seems to take awhile without much happening

  - by mfisch

  After deploying a charm, either locally or not, juju status lists "Pending". It seems to sit in this state for awhile, longer in my experience in the cloud, a bit shorter locally. What is juju doing during this time? For local instances it's a couple minutes or less, longer with cloud instances, up to 10 minutes in some cases. I am just curious if deploy's stay pending when the VM is being setup or is something else going on?

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• SEO - Helping Websites Reach the Top Spot

  Even with a well-made website on hand, SEO trainings are a wise investment for anybody who's goal is to make his or her website claim the first page status in every search engine listing relevant to his or her website. This can be attainable in a fastest time possible through the help that comes from SEO training.

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• Deal Registration Moves to Oracle Partner Store (OPS)

  - by rituchhibber

  In November 2012, Oracle's partner deal registration process will move to the Oracle Partner Store (OPS). During this time, OPS will become the single source for partners to register deals, obtain deal status, and place orders. Detailed instructions on each of these tasks can be found on the OPS Information Page. OPS will offer several enhancements to the deal registration process, including: Simplified Registration Form Easier Product Selection Expanded Browser Support Shared Registration Visibility Between VAD and VAR Pre-set Customer Selection From Partner Ordering Base

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• Introduction to SMART

  <b>Linux Magazine:</b> "Did you know your drive was SMART? Actually: Self-Monitoring, Analysis, and Reporting Technology. It can be used to gather information about your hard drives and offers some additional information about the status of your storage devices. It can also be used with other tools to help predict drive failure. "

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