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I am so fricking happy right now. I’m happy enough to take a commemorative picture of myself pointing at a screen. That’s how happy I am.
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Last night while attempting to pseudocode my way into finding adjacent nodes (either dynamically _or _manually at this point. Later Graphikos from the Impact forums/IRC was kind enough to show me a modified function he had and explain how it works, which may be what I need with some tweaking - I’ll write more on this later) I found myself pouring through Impact documentation in hopes that maybe I’ll find something that might help. While d..
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Hacked! (or: A reminder about why unix permissions matter)
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www.evantahler.com
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14 years ago
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eng
Note: I have included links to some of the malicious PHP code which attacked me in this blog post. I had a hard time deciding whether this…
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This is my third blog post today. Well, technically today is the next day, but it still feels like yesterday. I promise they won’t be this frequent all the time. Today I’ve just had a lot to write about.
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Decidability Versus Efficiency In the early days of computing theory, the important questions were primarily about decidability. What sorts of problems are beyond the power of a Turing machine to solve? As we saw in our last primer on Turing machines, the halting problem is such an example: it can never be solved a finite amount of time by a Turing machine. However, more recently (in the past half-century) the focus of computing theory has ..
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Decidability Versus Efficiency In the early days of computing theory, the important questions were primarily about decidability. What sorts of problems are beyond the power of a Turing machine to solve? As we saw in our last primer on Turing machines, the halting problem is such an example: it can never be solved a finite amount of time by a Turing machine. However, more recently (in the past half-century) the focus of computing theory has ..
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Decidability Versus Efficiency In the early days of computing theory, the important questions were primarily about decidability. What sorts of problems are beyond the power of a Turing machine to solve? As we saw in our last primer on Turing machines, the halting problem is such an example: it can never be solved a finite amount of time by a Turing machine. However, more recently (in the past half-century) the focus of computing theory has ..
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If there was one good thing that came out of the Interzone Games debacle for me it’s the people I met along the way (there were actually many many good things that I wouldn’t trade for anything, but this is by far the most prominent). Actually building the things in my head (i.e. programming) has been my weakest point for a long time, but I luckily stumbled into a job a few years ago that let me meet people who do this stuff for a living ..
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Update - Feb 23, 2012, 12:50pm In my previous post I talked about how I know that I should be sticking away from global arrays…in this post I’m going to talk about how I now have a global array of global arrays. Yes, I am facepalming right now.
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Dear internets, During my daily grind of computer architecturing, I often learn something new that I wish a mentor had taught me earlier. I will post my babbles here, so that the interested might learn, and for the wiser to comment on. Happy Hacking! James PS: I had a previous blog, but that server was taken down. It has been merged into this one! You can hire James and his team at m9rx corporation . You can follow Jame..
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Dear internets, During my daily grind of computer architecturing, I often learn something new that I wish a mentor had taught me earlier. I will post my babbles here, so that the interested might learn, and for the wiser to comment on. Happy Hacking! James PS: I had a previous blog, but that server was taken down. It has been merged into this one! You can hire James and his team at m9rx corporation . You can follow Jame..
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Dear internets, Once upon a time, I had one of those “brain teaser-of-the-day” calendars. Free business tip: someone should make an ‘rsync’ version. That would be brilliant. (If you don’t know what rsync is, then you should probably go read a different blog.) Anyone who’s used kvm might know, linux virtual machines can have sparse .raw file backing stores. This means the operating system could think it has one TiB of space, when it is a..
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Dear internets, Once upon a time, I had one of those “brain teaser-of-the-day” calendars. Free business tip: someone should make an ‘rsync’ version. That would be brilliant. (If you don’t know what rsync is, then you should probably go read a different blog.) Anyone who’s used kvm might know, linux virtual machines can have sparse .raw file backing stores. This means the operating system could think it has one TiB of space, when it is a..
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So I've taken a new full-time position as a Web Developer at Social Communications Company . We make a virtual office communication tool that combines an interactive office map with chat, voice, and meeting features. We are adding a new web client to complement the existing native clients for Mac OS and Windows, and using node.js and HTML5. As a long-time user (sufferer?) of those frustrating conference call phones you find sprinkled throu....
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Today was filled with boxes, furniture, moving, and being squished in a car. I loved it. Tiring, but awesome. Ellen and Baz were helping me move into the new place, which was amazing of them. After the first load was dropped off at the new house and we were back for the second we took a short break to relax. Naturally, the conversation drifted to games. It always does. Specifically, I expressed my frustration at being stuck on Gwen .
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LinkedIn is perhaps not known for their development efforts in the open source community. But to my surprise, they have released an open source data store, dubbed "Sensei DB" which I find really in...
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LinkedIn is perhaps not known for their development efforts in the open source community. But to my surprise, they have released an open source data store, dubbed "Sensei DB" which I find really in...
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It can be difficult to be Agile when working with 3rd party software framework. The vendor product may dictate many aspects of the software architecture thwarting your attempts at automated testing and continuous build. However there are steps you can take to make Agile easier. I’ll discuss a few of the options that have worked for me on my current project. Insulate yourself from static methods. Introduce wrappers (Facades) to vendor ..
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I have a hard time answering the question "where are you from?". I’ve lived in over 15 different homes in 8 cities. I was born in New…
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From: Ryan F ( ryanf@ggadget.org ) Date: Thu, Feb 16, 2012 at 11:40 AM Subject: Featured Tech Site Award To: ------------- My name is Ryan, and I work at Green Gadget -- a PR6 technology and gadget review site located in Austin, Texas. The reason I'm emailing you today is because we’ve selected you as an exceptional technology site. We would like to highlight you on our site and present you with an official sidebar badge for your ....
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From: Ryan F ( ryanf@ggadget.org ) Date: Thu, Feb 16, 2012 at 11:40 AM Subject: Featured Tech Site Award To: ------------- My name is Ryan, and I work at Green Gadget -- a PR6 technology and gadget review site located in Austin, Texas. The reason I'm emailing you today is because we’ve selected you as an exceptional technology site. We would like to highlight you on our site and present you with an official sidebar badge for your ....
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I kind of started this thing last night. First, I should probably think of some way to refer to this thing when I write about it in a way that doesn’t give away the entire concept. I have a feeling calling it “thing” or “project” or “it” is going to get very old very quickly. At the same time though, giving it a name is kind of like making a commitment. Seeing as I don’t actually know what I’m doing and have no clue how or when or if I’ll..
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I'm going to try and post smaller, more frequent articles. This whole "two months between massive walls of text and screenshots" thing is not working out. So, the alpha I promised is *still* inbound. I'm working as fast as I can! And I think it's paying off. For a while I was very worried about performance. In my last post I talked about how I optimized the renderer, but there were still issues with the physics engine. I was putting each ..
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After all the hoopla about node.js and Nerf guns yesterday I revisited the phidgets package and fixed a few bugs. Most importantly there…
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I have been with Rackspace for a while now and never had problems. The server has been fast and responsive and their prices are great. However, what happened yesterday blew my mind and totally made me change how I view server providers as a whole—including the likes of AWS and Heroku. Here is how it went down. 2:07pm CST I got an email from one of my administrators that the front end was unreachable. I immediately tried to visit the ....
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I have been with Rackspace for a while now and never had problems. The server has been fast and responsive and their prices are great. However, what happened yesterday blew my mind and totally made me change how I view server providers as a whole—including the likes of AWS and Heroku. Here is how it went down. 2:07pm CST I got an email from one of my administrators that the front end was unreachable. I immediately tried to visit the ....
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First of all: Yay for R18+ games in Australia ! Second of all: I slept for 12 about 10 hours last night. Ten hours . That’s like…ten hours more than I usually do. Just kidding…I do sleep, I’ve just been doing less of it lately. I’ve noticed myself getting a little worn out over the past couple of weeks, like the lack of rest has been catching up with me. It’s kind of to be expected with the amount of work that needs to get done around h..
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This past weekend, hundreds of hackers showed up at the TokBox HQ with a mission to build the future of music. The event started with pitches — giving sponsors a chance to show off their APIs — followed by in-depth workshops where attendees could learn more about each platform and ask questions related to their project. Once the hacking time started, people quickly broke off into groups and got to work.
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This past weekend, hundreds of hackers showed up at the TokBox HQ with a mission to build the future of music. The event started with pitches — giving sponsors a chance to show off their APIs — followed by in-depth workshops where attendees could learn more about each platform and ask questions related to their project. Once the hacking time started, people quickly broke off into groups and got to work.
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A quick update about the nodeSpider project (my first public node.js project!): It is now based on ActionHero.
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The University of Iowa Libraries is home to the Fluxus West Collection, a group of physical art objects made by artists Joseph Beuys, Yoko Ono, George Brecht, Alison Knowles, Ken Friedman, A-Yo, George Maciunas, and others. In early 2012, I developed this 3D visualization system based on curation from Stephen Voyce, assistant professor of […]
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For the last 2 months, we’ve been using ControlTier to automate deployments to our integration and QA environments. Our deployment is a little more complicated that most Java applications because it runs on a pseudo-grid. That is, there are 2 clustered JBoss servers, a database server, and 4+ Linux servers that each run about 8 Java processes. I was able to get ControlTier up and running in a few days, and defining the jobs was relati..
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Recently I won a Kindle Fire in a Hacker Buddy give away, sponsored by Tokbox. (Hacker Buddy is a site that connects hackers to other hackers with the goal of helping each other out, you should check it out) I wanted to write up a summary of my experience using the device. I'm not going to bore anybody with specs, information or detail. Enough information can be found online, eg. on the Amazon Kindle store.
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Recently I won a Kindle Fire in a Hacker Buddy give away, sponsored by Tokbox. (Hacker Buddy is a site that connects hackers to other hackers with the goal of helping each other out, you should check it out) I wanted to write up a summary of my experience using the device. I'm not going to bore anybody with specs, information or detail. Enough information can be found online, eg. on the Amazon Kindle store.
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