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• Warning about SSL ceritificate, am I under attack ?

  - by Bunny Rabbit

  Lately I've been getting a lot of warnings about SSL certifications on my pc, Empathy keeps telling me that Facebook's certificate is self-signed and can't be trusted, and also, there are occasional warnings in Google-Chrome about security. I remember the last one saying that that the page is secured but some of the resources that the page is using are not from a secure connection, something like that. Is my pc hacked / under attack? How can I check that, and if so, how can I safeguard myself? PS: One thing that comes to my mind is that I might be under an arp poisoning / spoofing attack.

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• How to tell whether your programmers are under-performing?

  - by A Team Lead

  I am a team lead with 5+ developers. I have a developer (let's call him A) who is a good programmer, who writes good clean, easy to understand code. However he is somewhat difficult to manage, and sometimes I wonder whether he is really under-performing or not. Our company requires the developers to indicate the work progress in the bug tracker we use, not so much as to monitor the programmers but to let the stackholders know the progress. The thing is, A only updates a task progress when it is done ( maybe 3 weeks after it is first worked on) and this leaves everyone wondering what is going on in the middle of the development week. He wouldn't change his habit despite repeated probing. ( It's OK, developers hate paperwork, I do, too) Recent 2-3 months he on leave quite often due to various events-- either he is sick, or have to attend a lot of personal events etc. ( It's OK, bad things happen in a string. It's just a coincidence) We define sprints, or roadmaps for each month. And in the beginning of the sprint, we will discuss the amount of work each of the developers have to do in a sprint and the developers get to set the amount of time they need for each task. He usually won't be able to complete all of them. (It's OK, the developers are regularly missing deadlines not due to their fault). If only one or two of the above events happen, I won't feel that A is under-performing, but they all happen together. So I have the feeling that A is under-performing and maybe-- God forbid--- slacking off. This is just a feeling based on my years of experience as programmer. But I could be wrong. It is notoriously hard to measure the work of a programmer, given that not all two tasks are alike, and there lacks a standard objective to measure the commitment of a programmer to your company. It is downright impossible to tell whether the programmer is doing his job or slacking off. All you can do, is to trust them-- yeah, trusting and giving them autonomy is the best way for programmers to work, I know that, so don't start a lecture on why you need to trust your programmers, thank you every much-- but if they abuse your trust, can you know? My question is, how can you tell whether your programmers are under-performing? Surely there are experience team leads who know better than me on this? Outcome: I've a straight talk with him regarding my perception on his performance. He was indignant when I suggested that I had the feeling that he wasn't performing at his best level. He felt that this was a completely unfair feeling. I then replied that this was my feeling and I didn't know whether my feeling was right or not. He would have none of this and ended the discussion immediately. Before he left he said that he "would try to give more to the company" in a very cold tone. I was taken aback by his reaction. I am sure that I offended him in some ways. Not too sure whether that was the right thing to do for me to be so frank with him, though. Extra notes: I hate micromanaging. So all that we have for our software process is Sprint ( where tasks get prioritized and assigned, and at the end of the month, a review of the amount of work done). Developers would require to update the tasks as they go along everyday. There is no standup meeting, or anything of the sort. Mainly because we have the freedom to work from home and everyone cherishes this freedom. Although I am the one who sets the deadline, but the developers will provide the estimate for each tasks and I will decide-- based on the estimate-- the tasks that go into a particular sprint. If they can't finish the tasks at the end of the sprint, I will push them to the next. So theoretically one can just do only 1 or 2 tasks during the whole sprint and then push the remaining 99 tasks to the next sprint and still he will be fine as long as justifies this-- in the form of daily work progress updates

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• Trouble signing Code of Conduct

  - by Lionthinker

  So I've spent quite some time trying to sign this code of conduct and am on the verge of abandoning it. Got right to the sign the txt file stage https://launchpad.net/codeofconduct/1.1/+sign but now I get an error and am just tired of fighting with Ubuntu. It has to do with the clearsign thing in the terminal. See below $ gpg --clearsign UbuntuCodeofConduct-1.1.txt You need a passphrase to unlock the secret key for user: "Leon Gert Marincowitz (for launchpad) <[email protected]>" 2048-bit RSA key, ID 715FBC94, created 2012-06-16 gpg: can't open `UbuntuCodeofConduct-1.1.txt': No such file or directory gpg: UbuntuCodeofConduct-1.1.txt: clearsign failed: file open error

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• Dual Boot Ubuntu 12.04 on a Thinkpad T420 but keep recovery partition

  - by The PC Samurai

  I have a Thinkpad T420 which runs on Windows 7 Pro and I would like to install Ubuntu 12.04 on it via Dual Boot. But the thing is, I'd like to keep the Thinkvantage Recovery Partition. I've been researching and found this: Install Ubuntu on ThinkPad, recovery section must remain intact and http://www.thinkwiki.org/wiki/Rescue_and_Recovery But the information doesn't seem to be updated for for my situation (the second link indicates that it won't work with Windows 7). Just wonderin' if anyone already has experience doing this? I could create recovery CD/DVD's but I'll be more happy i can keep recovery partition and boot information on the hard drive functional (for future resale purposes). Any Ideas?

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• Permanent redirect to different domain followed by temporary redirect to folder

  - by Ricardo Amaral

  I have old-domain.com which I want to migrate to new-domain.com. However, the content on the old domain is, well, old. And I'm currently in the process of redesigning my whole site. My idea is to do a permanent (301) redirect from old-domain.com to new-domain.com so that search engines know about the new domain and forget about the old one. But since the content is old I was thinking to do a temporary (302) redirect from new-domain.com to new-domain.com/old/ until the new content/site is ready to be published. Is this, for some reason, a bad idea? Or there's nothing wrong with it? One last thing... If I go with this, what should I do when the new content is ready? Should I just remove the 302 redirect and that's it, or should I do something else to notify search engines that the temporary redirect is over?

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• How to filter content in the cureently opened folder?

  - by peter matis

  there is one thing I'm missing since I've been forced to move from osx to ubuntu. for osx there is wonderful file browser named Path Finder which has very handy filter function build in. the search field in the Path Finders upper right corner isn't searching your whole HD, it's not searching in all the sub folders of a given directory (like in nautilus). it's just filtering the content of the folder you have currently opened whithout loking in to the sub folders. is there something similar (plugin, exstention...) available for nautilus? two users are already asking the same question, but the answers obviously missed the point.

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• How to start competitive programming?

  - by Vaibhav Agarwal

  I am practicing coding for a while but the problem is that it takes me a lot of time to write a solution for the problems. I want to ask if competitive programming can help me in improving this? If yes, then how should I start and from what site like TopCoder? I would obviously won't be able to solve very hard problems for now. What should I do? If no, what else should I do? I also have another problem that I want to learn coding but the thing is that I feel that I am not very good at it. What should I do? It's like bugging me from inside. I know some people may not find this question informative but please at least allow me to get an answer.

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• Just interviewed, turned down, now got an email asking to chat with recruiter. No response. What should I do? [closed]

  - by Lambert

  I was turned down after two interviews by a prominent company for an internship, and only a couple days later, I was asked when I had 10-15 minutes to chat today. Of course, I loved to, so I emailed within just 10 minutes of their email and let them know what times I was available at, and asked them when the best time should be, and if I should go somewhere or expect a phone call. No reply has come from them since yesterday afternoon, the recruiter wanted to talk to me today. I don't want to lose this opportunity, but I have no way to contact the recruiter other than by email, and the recruiter hasn't responded to my emails from yesterday, even though we were supposed to talk today. What's the best thing I can do (preferably within the next few hours!) to get the job? Is that even probably why she emailed me, or was a different reason likely? Any ideas?

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• Music player that remembers last song and playlist

  - by user654628

  I am looking for something similar to winamp. I have seen other threads but I have tried some solutions and they did not work. I tried Banshee that comes with Ubuntu 11.10 but it does not open last song. I tried Rhythmbox with the remember last song plugin however it does not remember the playlist I got the song from so it would start shuffling all my music. I tried Amarok and it does the same thing as Banshee except cannot even play my playlist and starts playing all my music. I tried audacious but importing my playlist .m3u doesnt allow me to select the individual playlists and play them. I just moved from Windows using winamp and would like a music player that can open playlists .m3u and when I open the application later that it opens the last song and playlist and I can press the play hotkey and music will start playing on startup similar to winamp. I do not care about any additional functionality or user interface.

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• C# or .Net features to cut off assuming no backward compatibility needed?

  - by Gulshan

  Any product or framework evolves. Mainly it's done to catch up the needs of it's users, leverage new computing powers and simply make it better. Sometimes the primary design goal also changes with the product. C# or .net framework is no exception. As we see, the present day 4th version is very much different comparing with the first one. But thing comes as a barricade to this evolution- backward compatibility. In most of frameworks/products there are features would have been cut off if there was no need to support backward compatibility. According to you, what are these features in C#/.net? Please mention one feature per answer.

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• Amazon Web Services Free Trial: query about get and put requests

  - by abel

  Amazon recently introduced a free tier for its cloud offering. I signed up for AWS and while signing up for the free tier of S3, i found this As part of AWS Free Usage Tier, you can get started with Amazon S3 for free. Upon sign-up, new AWS customers receive 5 GB of Amazon S3 storage, 20,000 Get Requests, 2,000 Put Requests, 15GB of bandwidth in and 15GB of bandwidth out each month for one year. source:aws.amazon.com , emphasis mine. 20,000 GET requests & 2000 puts mean , 20,000 page views(max) and 2000 file uploads per month. Isn't that lower than what App Engine offers 43,200,000 requests per day.Am I missing some thing, please help.

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• Is it good practice to analyse who introduced each bug?

  - by Michal Czardybon

  I used to analyse performance of programmers in my team by looking at the issues they have closed. Many of the issues are of course bugs. And here another important performance aspect comes - who introduced the bugs. I am wondering, if creating a custom field in the issue tracking system "Blamed" for reporting the person who generated the problem, is a good practice. One one hand it seems ok to me to promote personal responsibility for quality and this could reduce the additional work we have due to careless programming. On the other hand this is negative, things are sometimes vague and sometimes there is a reason such us "this thing had to be done very quickly due to a client's...". What to you think?

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• two <select> always next to each other inseide <td> ? [closed]

  - by Radek

  I have to selects inside td and I want to make sure that they are next to each other at all times but td's width is width of these two selects. Not more. The thing is that value to be displayd in selects changes based on data. <td> <select name="db2.rfthdd"> <option value="WEI">WEI</option> <option value="SCOTSdatabase">SCOTSdatabase</option> </select> <select id="db2.rfttimestamp"> <option value="20110302122831">2011-03-02-122831</option> <option value="20110302122442">2011-03-02-122442</option> </select> </td>

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• How did craigspro license Craigslist content? [closed]

  - by Joshua Frank

  There's an app called craigspro that provides a much better interface to Craigslist on mobile devices. They claim that the app is Officially Licensed by Craigslist, but I thought Craigslist never licensed their content, and the only thing I can find on the subject in the terms of use is this: Any copying, aggregation, display, distribution, performance or derivative use of craigslist or any content posted on craigslist whether done directly or through intermediaries (including but not limited to by means of spiders, robots, crawlers, scrapers, framing, iframes or RSS feeds) is prohibited. As a limited exception, general purpose Internet search engines and noncommercial public archives will be entitled to access craigslist without individual written agreements executed with CL that specifically authorize an exception to this prohibition if ... Does anyone know how do get a "written agreement" with Craigslist, and roughly what their terms would be? Do they charge a fee, or just check that you're not evil? I'll try next with Craigslist directly, but I'd like to get a sense of the landscape before stumbling in.

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• Our plans for ASP.NET AJAX and SharePoint 2010

  The new MS Office and SharePoint release is just around the corner, and I want to assure everyone that we will provide full support for SP 2010 in our next RadControls release - Q2 2010. We have already put up a page with information about the new SP release. You can find all the information you need at the SharePoint product page on our site. In this post I will talk about the ASP.NET AJAX controls, but as you will see on the product page, we will also offer support for our Silverlight UI controls.   The most important thing I want to share is that the RadEditor for MOSS product will updated for the 2010 version and you can already get a beta version from your account (provided you have a license for the ASP.NET AJAX controls). We still have some work to do in the WCM scenario, but ...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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• How to show a minimap in a 3d world

  - by Bubblewrap

  Got a really typical use-case here. I have large map made up of hexagons and at any given time only a small section of the map is visible. To provide an overview of the complete map, i want to show a small 2d representation of the map in a corner of the screen. What is the recommended approach for this in libgdx? Keep in mind the minimap must be updated when the currently visible section changes and when the map is updated. I've found SpriteBatch, but the warning label on it made me think twice: A SpriteBatch is a pretty heavy object so you should only ever have one in your program. I'm not sure i'm supposed to use the one SpriteBatch that i can have on the minimap, and i'm also not sure how to interpret "heavy" in this context. Another thing to possibly keep in mind is that the minimap will probably be part of a larger UI...is there any way to integrate these two?

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• Has anyone used RemObjects' Hydra to mix a large Delphi project with new C# additions?

  - by robsoft

  (Hopefully this is deemed suitable for Programmers, not StackOverflow - I could imagine it getting closed at SO because there's no obvious 'right' answer.) We have a large Delphi 2007 VCL project that uses things like DBXpress, Report Builder, DevExpress and TMS components (both visual and non-visual) etc. For reasons I won't bore you with, the company would like to start adding new modules to the program using .Net (via C# in particular). Rewriting from scratch isn't an option and given the heavy use of Report Builder and various other bits of Delphi-specific 3rd party code, I suspect that using something like TurnSharp to regenerate a C# project wouldn't work well either. Ideally we want to keep our Win32 VCL Delphi code but add new modules (plug-ins, sections of contained functionality like wizards etc) via C#. So we're considering RemObjects' Hydra, and in the next few weeks will probably have a go at evaluating it on a smaller-but-representative project first. I wondered if anyone had experience of doing this kind of thing with Hydra...?

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• Is there a good book to grok C++?

  - by Paperflyer

  This question got me thinking. I would say I am a pretty experienced C++ programmer. I use it a lot at work, I had some courses on it at the university, I can understand most C++ code I find out there without problems. Other languages you can pretty much learn by using them. But every time I use a new C++ library or check out some new C++ code by someone I did not know before, I discover a new set of idioms C++ has to offer. Basically, this has lead me to believe that there is a lot of stuff in C++ that might be worth knowing but that is not easily discoverable. So, is there a good book for a somewhat experienced C++ programmer to step up the game? You know, to kind of 'get' that language the way you can 'get' Ruby or Objective-C, where everything just suddenly makes sense and you start instinctively knowing 'that C++ way of thing'?

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• Roll Your Own Wi-Fi Spy Camera

  - by Jason Fitzpatrick

  This fun DIY project allows you to roll your own Wi-Fi based spy camera and then, when it’s time for a new project, pull apart the modular design and build something new. This build combines an Arduino board, an Adafruit Data Logging Shield, an a serial-based camera (among a handful of small parts and open-source code) into a spy camera that remotely delivers the photos via Wi-Fi. The nice thing about this project is that when you can easily deconstruct the build to reuse the parts in a new project (the number of things you can do with an Arduino is near limitless). Hit up the link below for an excellent and well documented tutorial over at LadyAda.net. “Internet of Things” Camera [via DIYPhotography] Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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• how to add water effect to an image

  - by brainydexter

  This is what I am trying to achieve: A given image would occupy say 3/4th height of the screen. The remaining 1/4th area would be a reflection of it with some waves (water effect) on it. I'm not sure how to do this. But here's my approach: render the given texture to another texture called mirror texture (maybe FBOs can help me?) invert mirror texture (scale it by -1 along Y) render mirror texture at height = 3/4 of the screen add some sense of noise to it OR using pixel shader and time, put pixel.z = sin(time) to make it wavy (Tech: C++/OpenGL/glsl) Is my approach correct ? Is there a better way to do this ? Also, can someone please recommend me if using FrameBuffer Objects would be the right thing here ? Thanks

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• Is there a programming language with not a tree but tags idea behind OOP?

  - by kolupaev

  I'm thinking about tree structures, and I feel that I don't like them. It's like when you have a shop, then you try to put all products to tree-like catalog, and then you need to place one product to multiple categories, now you have multiple routing, bla-bla. I don't feel like everything in the world could be put to a tree. Instead, I like idea of tags. I would like to store everything with tags. With tags I could do much more. I can even simulate trees if I want. I want to have tag-based filesystem! But hey - modern OOP paradigm with inheritance is based on tree. I want to see how it is when you don't have such basement. Closest thing I found is mixins in some languages. Do you know what else is also about this ideas?

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• Strategies for Indexing Custom Fields in RavenDB

  - by Adrian Thompson Phillips

  In the relational database world, if I was developing a CRM system and wanted to have the user add their own custom fields that are searchable, I could have tables that store the name of the new column, the data type and the value, etc. (which would be less inefficient to index) or I could use the less elegant (but more searchable) solution that software like Dynamics and SharePoint use, whereas I create a load of columns on my aggregate root called CustomInt1, CustomInt2, etc. (which looks dirty and has a limit of how many custom fields a user can have, but has indexing advantages). But my questions is this, in NoSQL databases, what would be the best way of achieving the same thing? My priority would be for searchability. So what would be the best way to store this data? If I used a predefined set of properties (i.e. CustomData1, CustomData2, etc.), because these are all stored as JSON (i.e. strings) in the database, does this make it simpler because I don't have to worry about data types?

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• Gamification at OOW

  - by erikanollwebb

  Last week was Oracle OpenWorld, and for those of you not in tech or downtown San Francisco, that might not mean a whole lot.  However, if you are familiar with it, Oracle OpenWorld is our premier customer event.  This year, more than 50,000 people attended.  It's not a good week to visit San Francisco on vacation because Oracle customers take over all the hotels in town!  It was crazy, but a lot of fun and it's a great opportunity for the Apps UX group to do customer research with a range of customers.  This year, more than 100+ customers and partners took the time to team up with our UX experts and provide feedback on new designs and ideas. Over three days,  UX teams conducted 8  one-on-one user feedback sessions, 4 focus groups and 7 surveys. In addition, we conducted a voice capture activity and were able to collect close to 70 speech samples at the lab and DEMOgrounds. This was a great opportunity for us to do some testing on some specific gamification concepts with a set of business analysts.  We pulled in 8 folks for a focus group on gamification concepts and whether they thought those would work for their teams. To get ready for this, my designer extraordinaire, Andrea Cantú, flew into town and we spent almost a week locked in a room together brainstorming design ideas.  We killed a few trees trying to get all of our concepts and other examples together in the process, but in the end, we put together a whole series of examples of how you might gamify an Oracle app (in this case, CRM).  Andrea is a genius for this kind of thing and the comps she created looked great.  Here's a picture of her hard at work!  We also had the good fortune to have my boss, Laurie Pattison and my usability contractor, Shobana Subramanian there to note take and observe as well.  Here's a few shots of us, hard at work preparing for the day (or checking out something on Laurie's iPhone...) To start things off, we gave an overview of gamification and I talked about what it's used for.  Then we gave the participants a scenario about our sales person and what we were trying to get her to do. It was a great opportunity to highlight what our business goals might be and why we might want to add game mechanics.  It was also a good way to get them thinking about how that might work for them in their environments and workplaces. There were some surprises for the day.  We asked how many of them were already familiar with the concept of gamification--only two people had heard of it and only one was using game mechanics in his work.  That's in contrast to a survey we just ran internally with folks in a dev org where almost 50% of about 450 respondents had heard of gamification.  As we discussed the ways game mechanics could be used, it became clear that many of the folks had seen some game mechanics in action but didn't know that's what they were.  We also noticed that the folks in this group felt that if they were trying to sell the concept in their orgs, they wouldn't call it gamification.  That's not a huge surprise to me--they said what we've heard in the past, that gamification does not seem like a serious term for enterprise software.  They said they'd sell it with the goals--as a means to increase behaviors by rewarding users for activities.  It's a funny problem.  The word puts some folks off, but at the same time, I haven't seen another one word description that quite captures the range of things that "gamification" can cover.  My guess is that the more mainstream the term becomes, the more desensitized we'll become to the idea the it's trivializing enterprise software in some way.  Still, it was interesting to note that this group still felt that they would not take this concept to their bosses or teams and call it "gamification".  They focused on the goals, and how we could incentivize desired behaviors with game mechanics.  As I have already stated in other posts, I feel like my org is more receptive to discussing how this is just a more transparent type of usability and user experience methods than talking about gamification.  That's the argument they said they would use. All in all, it was a good session.  I love getting to talk to customers, present ideas and concepts, and get their feedback and input.  It's the type of thing that really helps drive our designs and keeps us grounded in what our customers need/want.  We're already planning where to get more feedback opportunities in the coming months. 

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• Migrating from GlassFish 2.x to 3.1.x

  - by alexismp

  With clustering now available in GlassFish since version 3.1 (our Spring 2011 release), a good number of folks have been looking at migrating their existing GlassFish 2.x-based clustered environments to a more recent version to take advantage of Java EE 6, our modular design, improved SSH-based provisioning and enhanced HA performance. The GlassFish documentation set is quite extensive and has a dedicated Upgrade Guide. It obviously lists a number of small changes such as file layout on disk (mostly due to modularity), some option changes (grizzly, shoal), the removal of node agents (using SSH instead), new JPA default provider name, etc... There is even a migration tool (glassfish/bin/asupgrade) to upgrade existing domains. But really the only thing you need to know is that each module in GlassFish 3 and beyond is responsible for doing its part of the upgrade job which means that the migration is as simple as copying a 2.x domain directory to the domains/ directory and starting the server with asadmin start-domain --upgrade. Binary-compatible products eligible for such upgrades include Sun Java System Application Server 9.1 Update 2 as well as version 2.1 and 2.1.1 of Sun GlassFish Enterprise Server.

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• Why should ViewModel route actions to Controller when using the MVCVM pattern?

  - by Lea Hayes

  When reading examples across the Internet (including the MSDN reference) I have found that code examples are all doing the following type of thing: public class FooViewModel : BaseViewModel { public FooViewModel(FooController controller) { Controller = controller; } protected FooController Controller { get; private set; } public void PerformSuperAction() { // This just routes action to controller... Controller.SuperAction(); } ... } and then for the view: public class FooView : BaseView { ... private void OnSuperButtonClicked() { ViewModel.PerformSuperAction(); } } Why do we not just do the following? public class FooView : BaseView { ... private void OnSuperButtonClicked() { ViewModel.Controller.SuperAction(); // or, even just use a shortcut property: Controller.SuperAction(); } }

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