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IT Security Threat: Social Networking

A malware epidemic plaguing social networking sites threatens far more than users' systems  the entire enterprise infrastructure may be at risk.

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IT Security Threat: Social Networking

A malware epidemic plaguing social networking sites threatens far more than users' systems  the entire enterprise infrastructure may be at risk.

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QotD: Maurizio Cimadamore on Project Lambda Binary Snapshots

- by $utils.escapeXML($entry.author)

I'm glad to announce that the first binary snapshots of the lambda repository are available at the following URL:http://jdk8.java.net/lambda/As you can imagine, as the implementation of the compiler/libraries is still under heavy development, there are still many rough corners that need to be polished. I'd like to thank you all for all the patience and the valuable feedback provided so far - please keep it coming!Maurizio Cimadamore announcing the Project Lambda binary snapshots on the lambda-dev OpenJDK mailing list.

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Opengl-es picking object

- by lacas

I saw a lot of picking code opengl-es, but nothing worked. Can someone give me what am I missing? My code is (from tutorials/forums) Vec3 far = Camera.getPosition(); Vec3 near = Shared.opengl().getPickingRay(ev.getX(), ev.getY(), 0); Vec3 direction = far.sub(near); direction.normalize(); Log.e("direction", direction.x+" "+direction.y+" "+direction.z); Ray mouseRay = new Ray(near, direction); for (int n=0; n<ObjectFactory.objects.size(); n++) { if (ObjectFactory.objects.get(n)!=null) { IObject obj = ObjectFactory.objects.get(n); float discriminant, b; float radius=0.1f; b = -mouseRay.getOrigin().dot(mouseRay.getDirection()); discriminant = b * b - mouseRay.getOrigin().dot(mouseRay.getOrigin()) + radius*radius; discriminant = FloatMath.sqrt(discriminant); double x1 = b - discriminant; double x2 = b + discriminant; Log.e("asd", obj.getName() + " "+discriminant+" "+x1+" "+x2); } } my camera vectors: //cam Vec3 position =new Vec3(-obj.getPosX()+x, obj.getPosZ()-0.3f, obj.getPosY()+z); Vec3 direction =new Vec3(-obj.getPosX(), obj.getPosZ(), obj.getPosY()); Vec3 up =new Vec3(0.0f, -1.0f, 0.0f); Camera.set(position, direction, up); and my picking code: public Vec3 getPickingRay(float mouseX, float mouseY, float mouseZ) { int[] viewport = getViewport(); float[] modelview = getModelView(); float[] projection = getProjection(); float winX, winY; float[] position = new float[4]; winX = (float)mouseX; winY = (float)Shared.screen.width - (float)mouseY; GLU.gluUnProject(winX, winY, mouseZ, modelview, 0, projection, 0, viewport, 0, position, 0); return new Vec3(position[0], position[1], position[2]); } My camera moving all the time in 3d space. and my actors/modells moving too. my camera is following one actor/modell and the user can move the camera on a circle on this model. How can I change the above code to working?

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How do I create a bounding frustrum from a view & projection matrix?

- by Narf the Mouse

Given a left-handed Projection matrix, a left-handed View matrix, a ViewProj matrix of View * Projection - How do I create a bounding Frustum comprised of near, far, left, right and top, bottom planes? The only example I could find on Google (Tutorial 16: Frustum Culling) seems to not work; for example, if the math is used as given, the near-plane's distance is a negative. This places the near-plane behind the camera...

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Only run CRON job if connected to specific wifi network

- by Herbert

I am a newbie to scripting on Linux (Lubuntu), but I would like to make a script that runs a cron job only if my laptop is connected to my home wifi. Is this possible? I guess, I could do something with iwconfig and pull the ESSID from there with grep? So far, I tried this and it seems to work: #!/bin/bash # CRON, connected to specific WIFI clear netid=HOFF216 if iwconfig | grep $netid then clear echo "True, we are connected to $netid" rsync ........... else clear echo "False, we are not connected to $netid" fi

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Browser Game Database structure

- by John Svensson

users id username password email userlevel characters id userid level strength exp max_exp map id x y This is what I have so far. I want to be able to implement and put different NPC's on my map location. I am thinking of some npc_entities table, would that be a good approach? And then I would have a npc_list table with details as how much damage, level, etc the NPC is. Give me some ideas with the map, map entities, npc how I can structure it?

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Collision in PyGame for spinning rectangular object.touching circles

- by OverAchiever

I'm creating a variation of Pong. One of the differences is that I use a rectangular structure as the object which is being bounced around, and I use circles as paddles. So far, all the collision handling I've worked with was using simple math (I wasn't using the collision "feature" in PyGame). The game is contained within a 2-dimensional continuous space. The idea is that the rectangular structure will spin at different speed depending on how far from the center you touch it with the circle. Also, any extremity of the rectangular structure should be able to touch any extremity of the circle. So I need to keep track of where it has been touched on both the circle and the rectangle to figure out the direction it will be bounced to. I intend to have basically 8 possible directions (Up, down, left, right and the half points between each one of those). I can work out the calculation of how the objected will be dislocated once I get the direction it will be dislocated to based on where it has been touch. I also need to keep track of where it has been touched to decide if the rectangular structure will spin clockwise or counter-clockwise after it collided. Before I started coding, I read the resources available at the PyGame website on the collision class they have (And its respective functions). I tried to work out the logic of what I was trying to achieve based on those resources and how the game will function. The only thing I could figure out that I could do was to make each one of these objects as a group of rectangular objects, and depending on which rectangle was touched the other would behave accordingly and give the illusion it is a single object. However, not only I don't know if this will work, but I also don't know if it is gonna look convincing based on how PyGame redraws the objects. Is there a way I can use PyGame to handle these collision detections by still having a single object? Can I figure out the point of collision on both objects using functions within PyGame precisely enough to achieve what I'm looking for? P.s: I hope the question was specific and clear enough. I apologize if there were any grammar mistakes, English is not my native language.

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How does Minecraft render its sunset and sky?

- by Nick

In Minecraft, the sunset looks really beautiful and I've always wanted to know how they do it. Do they use several skyboxes rendered over eachother? That is, one for the sky (which can turn dark and light depending on the time of the day), one for the sun and moon, and one for the orange horizon effect? I was hoping someone could enlighten me... I wish I could enter wireframe or something like that but as far as I know that is not possible.

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Evolution not downloading messages for offline use

- by RandomX678

Even though I've selected "Copy folder content locally for offline operation" on my inbox and "Automatically synchronize account locally" in my account options, Evolution still only downloads headers for my inbox. When I click an email, its downloaded from the server. I want all my emails to be available to read offline - As far as I know this should be possible, so is my configuration that's wrong, or is it a bug?

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Has test driven development (TDD) actually benefited a real world project?

- by James

I am not new to coding. I have been coding (seriously) for over 15 years now. I have always had some testing for my code. However, over the last few months I have been learning test driven design/development (TDD) using Ruby on Rails. So far, I'm not seeing the benefit. I see some benefit to writing tests for some things, but very few. And while I like the idea of writing the test first, I find I spend substantially more time trying to debug my tests to get them to say what I really mean than I do debugging actual code. This is probably because the test code is often substantially more complicated than the code it tests. I hope this is just inexperience with the available tools (RSpec in this case). I must say though, at this point, the level of frustration mixed with the disappointing lack of performance is beyond unacceptable. So far, the only value I'm seeing from TDD is a growing library of RSpec files that serve as templates for other projects/files. Which is not much more useful, maybe less useful, than the actual project code files. In reading the available literature, I notice that TDD seems to be a massive time sink up front, but pays off in the end. I'm just wondering, are there any real world examples? Does this massive frustration ever pay off in the real world? I really hope I did not miss this question somewhere else on here. I searched, but all the questions/answers are several years old at this point. It was a rare occasion when I found a developer who would say anything bad about TDD, which is why I have spent as much time on this as I have. However, I noticed that nobody seems to point to specific real-world examples. I did read one answer that said the guy debugging the code in 2011 would thank you for have a complete unit testing suite (I think that comment was made in 2008). So, I'm just wondering, after all these years, do we finally have any examples showing the payoff is real? Has anybody actually inherited or gone back to code that was designed/developed with TDD and has a complete set of unit tests and actually felt a payoff? Or did you find that you were spending so much time trying to figure out what the test was testing (and why it was important) that you just tossed out the whole mess and dug into the code?

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Box2D relations

- by Valentino Ru

As far as I know, the unit in Box2D is meters. When I use Box2D in Processing with JBox2D, I set the "world size" as the window size specified in the setup(). Now I'm wondering if there is any function that scales down the world. For example, how can I simulate the throw of tennis ball within a room, without using a window of only 5 x 5 pixels? Additionally, is there any good documentation like the Java API?

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Speaking About SQL Server

- by AllenMWhite

There's a lot of excitement in the SQL Server world right now, with the RTM (Release to Manufacturing) release of SQL Server 2012 , and the availability of SQL Server Data Tools (SSDT) . My personal speaking schedule has exploded as well. Just this past Saturday I presented a session called Gather SQL Server Performance Data with PowerShell . There are a lot of events coming up, and I hope to see you at one or more of them. Here's a list of what's scheduled so far: First, I'll be presenting a session...(read more)

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UPMC Picks Oracle Identity Management

- by Naresh Persaud

UPMC, a $10-billion integrated global health enterprise, has selected Oracle as a key technology partner in UPMC’s $100-million analytics initiative designed to help “unlock the secrets of human health and disease” by consolidating and analyzing data from 200 separate sources across UPMC’s far-flung network.As part of the project UPMC also selected Oracle Identity Management to secure the interaction and insure regulatory compliance. Read complete article here. As healthcare organizations create new services on-line to provide better care Identity Management can provide a foundation for collaboration.

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Checking if %Y exists in current file in VimScript [closed]

- by Eduan

Like the title says. I would love to know how, with VimScript, I can do an if statement, that checks if %Y (for statusline) exists in the current file. This is what I have so far: if expand('%:Y') != "" let filetype=extend('%:Y') let filetype+= ",\ " else let filetype="" endif This is, of course, for my statusline, for which I don't want to show the filetype comma and space if the filetype doesn't exist. BTW, this is a direct copy of this StackOverflow question: http://stackoverflow.com/questions/13314264/checking-if-y-exists-in-current-file-in-vimscript

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Nautilus-Action conf. tool - crafting a "set as background" action

- by EgyptBeast

I wanted to create an option in the context menu to set the clicked picture to current desktop background (just like in Windows). I read the the nautilus action help but I couldn't figure it out. This is by far the command I could craft: gsettings set org.gnome.desktop.background picture-uri file://$PWD/ What I need: A command that correctly sets the current image to be the desktop background This command should only appear to the proper files (picture extenstions like .jpg)

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Professional immigration

- by etranger

Hello all, Does anyone here have a practical advice on professional relocation from Russia to Europe? The reasons behind making such a decision are far beyond the subject, perhaps, so I'll stick to the practical part. Having done some of the "common stuff" for finding a job, I am now facing two serious problems: I am a "dual-class" person, with university degree in marketing, and multiple years of self-studied computer competence (hence my writing here). Have professional experience in both areas. I don't currently hold a European work permit. From what I can see, this results in normal HR person throwing out my CV as either being "overqualified" or "too much trouble with making the permit". I do have the skills and character to start my own business, but it requires start-up capital that I don't have, over the last years I had to pay high bills for medical treatment of my family member, who had deceased. Now, I'm almost out of debts. As you can probably guess, English is not a problem, and I'm open to new languages, but first steps of entering the market, or the society, is the problematic part. I live close to Norway, and am trying to get some professional contacts there, but it hasn't got me any practical perspective so far. Any advice is greatly appreciated. EDIT: I am currently making my living off web site development, and occasional consulting services both in IT and marketing. For purely geographic reasons I'm dealing with clients that reside in the same city where I live, pop. 350 000. Being quite local, market requirements for web sites are simple and stable — clients need to control navigation, write articles in a word-like editor, upload illustrations and place ad banners, all with no additional programming. As many web developers do, I'm using my own content management system that fits these expectations. I have also started developing a newer version of this system that has better support for international environments, but I'm too distant from the real market demand in Europe to speak of the right track here. Technically it's based on php/mysql and uses xslt for templating. It allows for quick website deployment, and has architectural neatness, lack of which made me abandon similar opensource solutions (Joomla and the like). Deploying time from rasterized design proofs is normally under 6-8 working hours, don't know how that compares to the world practice. EDIT 2: Can anyone share what Norwegian (Scandinavian) web solutions market currently demands?

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Is it possible to make/translate a 3d engine to ruby on rails?

- by user20529

I am looking to make a 3D FPS that runs inside web browsers. I looked into using WebGL, but it didn't seem far enough along into development. I decided on using RoR because Ruby was a language I knew. I realize this may seem like a ridiculous question, but is there any way I can port/rewrite/whatever a game engine(Say for instance IrrLicht) to run inside Rails? Or for that matter, any other language on the web.

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Could anyone suggest me some image manipulation techniques to be added to my image viewer??

- by avi

Hello, I'm trying to develop a small image viewer just as an exercise to sharpen my programming skills. So far , all the features that I could think of adding to it are zooming in and out, inverting the colors of the image and resizing. Could anyone suggest me a few more features?? You are also welcome to suggest anything which has not been implemented yet. I would like to take it as a learning challenge. Thanks.

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New computer hangs on shutdown/reboot, how to troubleshoot?

- by Torben Gundtofte-Bruun

My system is working perfectly but it freezes during shutdown/reboot/suspend/hibernate: All windows and the menu bar disappear but the desktop wallpaper remains. It doesn't even show the shutdown screen (the one with the animated dots) where I could hit ESC and watch the shutdown console text. The system is brand-new and fully updated using Update Manager. How can I determine what is causing the freeze? Is there a log I can investigate? How can I fix this? I see no obvious cause of the freeze. The only USB attachment is a mouse/keyboard; I don't have any external storage attached; and I don't have any programs running (the machine freezes even when doing shutdown right from the login screen). What I've tried so far: Based on other questions (this, this, and this) that suggest some ACPI settings, I've tried sudo shutdown -h now to see whether the shutdown console text display offers any hints, but the system doesn't even get that far - it still freezes while the screen shown the desktop background image, without any toolbars. Only sudo shutdown --force works, but that's not a solution. Editing the grub menu to add acpi=off to the kernel didn't help. I guess there's not much point in trying the other (lesser) ACPI suggestions? Adding noapic to the grub entry had no discernible effect. Adding nolapic instead did something (I had removed the quiet option) - the system managed to continue further with the shutdown, right until the line Checking for running unattended-upgrades: which were the last characters on the screen. I've also checked the system BIOS, especially regarding power options, but didn't see anything out of the ordinary. Switching the BIOS standby setting from S3 to S1 didn't help. The standby setting can't be disabled, and there are no other ACPI-related settings AFAIK. BIOS reset didn't help. Not surprised; hadn't changed anything. I tried going to a virtual console (CtrlAltF1) as suggested by djeikyb and from there did a shutdown -h now and it froze there too, after this console output. I didn't try killing processes one at a time because I'm still too newbie to figure out how to do that. Booting with kernel 2.6.35.22 rather than 2.6.35.25 didn't help. Disabling the Nvidia drivers didn't help. Booting from Live CD (USB stick in fact) didn't help; it freezes the same way. Booting from Live CD, with acpi=off noapic nolapic didn't help either. Neither did just nolapic. So evidently this is not some custom setting in my install, but some sort of basic issue. MemTest competed in 1 hour without errors.

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How to Use YouTube For SEO

If you're a regular user of the internet, you will at some time have watched videos on YouTube, or even submitted your own video. Millions of people visit YouTube every month, and, although there are other similar sites, it's the leader by far, and a perfect place to market your site or product.

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Search Engine Optimization - Imagine the Power of Article Marketing

For just one minute stop and imagine the power of article marketing and exactly what it can do for you and your business. Original content is by far the best and using it to your advantage is to submit it to just one directory. There are literally thousands of article sites to submit to. Articles are a way to reach massive crowds in a very short period of time.

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When does a "scripter" become a "programmer"?

- by makerofthings7

Is there a difference between 'scripters' and 'programmers'? What is the dividing line between scripters and programmers? Perhaps all scripters be considered to be a programmer. If not all scripters can fall into the same camp, what about those people who use external objects such as COM objects, Win32's, etc. via an interop library? As far as script languages I'm thinking of are (but not limited to) perl, bash, javascript, powershell, and batch files.

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Scream if you want to go faster

- by simonsabin

My session for 24hrs of pass on High Performance functions will be starting at 11:00 GMT thats migdnight for folks in the UK. To attend follow this link https://www.livemeeting.com/cc/8000181573/join?id=N5Q8S7&role=attend&pw=d2%28_KmN3r The rest of the sessions can be found here http://www.sqlpass.org/24hours/2010/Sessions/ChronologicalOrder.aspx So far the sessions have been great so no pressure :( See you there in 4.5 hrs...(read more)

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Are One Way Links Still Important in Search Engine Optimization?

Pretty dumb question huh? But people are beginning to wonder considering that Google might change its algorithms again. If you doubt it, do a quick search on the keyword "Google caffeine". This is the new Google search engine and so far, beta testers have stated that it is faster, provides more relevant search engine results and son. Anyways, whatever the case may be, it is important to note that one way links are important right now because the search engines have made them so.

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