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In the early days of stacker at Remind, the number of stacks that we were managing was just a handful. CloudFormation stacks were updated sequentially, without any parallelism, and everyone was happy. Today, stacker manages 153 CloudFormation stacks that build out all of the AWS infrastructure that makes remind.com work. As you can imagine, attempting to update 153 stacks without any parallelism takes a long time, about 10 minutes to ....
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Trolls/Griefers have existed since the first online video game was published. They've spread from YouTube comments to video games and I wondered why.
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This is a story about how I got nerd sniped by a blog post from Cloudflare Engineering . The TLDR on their post is that you can script in Go if you use BINFMT_MISC in the kernel. BINFMT_MISC is really well documented and awesome. In the end, all they had to do to script in Go was to mount the filesystem: $ mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc Then, register the Go script binary format: $ echo ':golang:E::go::/u....
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Introduction These are some very hasty notes on Runge-Kutta methods and IRK2 in particular. I make no apologies for missing lots of details. I may try and put these in a more digestible form but not today. Some Uncomprehensive Theory In general, an implicit Runge-Kutta method is given by where and Traditionally this is written … Continue reading Implicit Runge Kutta and GNU Scientific Library
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I am not good with words. I feel tempted to say most people aren't. But as an engineer and because I know Akin's first law of spacecraft design: Engineering is done with numbers. Analysis witho...
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I am not good with words. I feel tempted to say most people aren't. But as an engineer and because I know Akin's first law of spacecraft design: Engineering is done with numbers. Analysis witho...
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Today we take for granted the concept of software as a tool but it didn't always exist. Mini-scripts, the interoperable programs, the small utilities for specific tasks, etc. This is what we're going to discuss, where do they come from, the history, and a bit more.
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BenchmarkDotNet v0.10.13 has been released! This release includes: Mono Support for DisassemblyDiagnoser: Now you can easily get an assembly listing not only on .NET Framework/.NET Core, but also on Mono. It works on Linux, macOS, and Windows (Windows requires installed cygwin with obj and as). (See #541 ) Support ANY CoreFX and CoreCLR builds: BenchmarkDotNet allows the users to run their benchmarks against ANY CoreCLR and CoreFX bu..
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BenchmarkDotNet v0.10.13 has been released! This release includes: Mono Support for DisassemblyDiagnoser: Now you can easily get an assembly listing not only on .NET Framework/.NET Core, but also on Mono. It works on Linux, macOS, and Windows (Windows requires installed cygwin with obj and as). (See #541 ) Support ANY CoreFX and CoreCLR builds: BenchmarkDotNet allows the users to run their benchmarks against ANY CoreCLR and CoreFX bu..
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Kids dont break your computer. Just broke mine. It’s a pain. If you break stuff however, I found an awesome channel to learn about computer repair. Louis RossmannCheck it out.
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Kids dont break your computer. Just broke mine. It’s a pain. If you break stuff however, I found an awesome channel to learn about computer repair. Louis RossmannCheck it out.
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Licensechecker. A command line application which identifies what software license things are under
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boyter.org
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8 years ago
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eng
A simple blog post here to introduce a new command line tool licensechecker (lc), which is similar in purpose to the library Licensee http://ben.balter.com/licensee/ which attempts to identify what software license(s) code is released under. lc itself is dual licensed under the MIT and Unlicense. Licensechecker (lc) was designed to be run either on your command line or using your CI tool of choice and produce either CSV, JSON, SPDX, Sum..
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So I just went to my first meetup of the Denver/Boulder Rust meetup group. The group has been around a while but went inactive for over a year. I was and am really excited to get it going again. The meetup went really well! We had about 20 attendees and folks seemed pretty engaged and interested. One of our planned speakers canceled at the last minute due to a family emergency, but Joel Dice and I just did what software developers normally ....
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I recently worked on creating a bash completion script for registering directory aliases and navigating to them with autocomplete in Bash and I found the feature really interesting. In this post I will familiarize you with the process of adding bash completion to your scripts. What is bash completion? Bash completion is a functionality through which bash helps users type their commands faster and easier. It accomplishes that by....
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I recently worked on creating a bash completion script for registering directory aliases and navigating to them with autocomplete in Bash and I found the feature really interesting. In this post I will familiarize you with the process of adding bash completion to your scripts. What is bash completion? Bash completion is a functionality through which bash helps users type their commands faster and easier. It accomplishes that by....
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I recently worked on creating a bash completion script for registering directory aliases and navigating to them with autocomplete in Bash and I found the feature really interesting. In this post I will familiarize you with the process of adding bash completion to your scripts. What is bash completion? Bash completion is a functionality through which bash helps users type their commands faster and easier. It accomplishes that by....
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Context I have one Gitlab account for personal and one for company use. To make sure my commits line up correctly with the email used in the SSH keys, I decided to have separate SSH keys for each account. The way it works is you need to create two sets (public and private) of keys. And then modify the SSH config and git config to get them to work. Generating SSH Keys ¶ I’m doing this on a Lubuntu machine. These may also work on an OSX ..
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List of slidedecks and videos of my talks in past: 2025 Cloud Breach Tactics: Enumeration to Initial Access (Workshop @ Vulncon) [Slides] LLMs from Scratch for Security Engineers (Talk @ SecurityBoat Community) [Video] [Slides] 2024 With infinite scale comes infinite bill (and bankruptcy) (Talk @ Rootconf 2024) [Video] Well, it’s just an AWS Account ID! (Online Talk @ Null Coimbatore) [Slides] Securing the Cloud: Detecting and Reporting Sen..
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In the previous post , we talked about one of the talks I gave at the Index Developer Conference last week. In this post, we share the materials from the other one, titled How we built a global search engine for genetic data . The session was scheduled in the Real-life production deployments track. Unlike the talks I usually...
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In the previous post , we talked about one of the talks I gave at the Index Developer Conference last week. In this post, we share the materials from the other one, titled How we built a global search engine for genetic data . The session was scheduled in the Real-life production deployments track. Unlike the talks I usually...
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One year ago this month, Cerner development associates in Kansas City moved into a new place to call home for their workdays, Innovations Campus. The first two towers that stand on this campus provide 805,000 square feet of workspace for more than 3,000 associates. Eventually, the campus will grow larger, including 16 buildings and 16,000 Cerner associates. As that growth approaches, it is important to reflect on what these first two towers..
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The month of March is going to be an intense one for me. In addition to my normal life of school and work, I’m helping my wife in her final few weeks of pregnancy and I intend to remodel the master bathroom.
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Analyzing AWS VPC Flow Logs using Apache Parquet Files and Amazon Athena
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mustafaakin.dev
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8 years ago
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eng
Originally appeared on Opsgenie Engineering Blog Network security is an essential topic for companies, as a compromised network is a direct threat to both users and the applications. The easiest way to maintain security is just blocking the unauthorized activity or only allowing the predetermined traffic. For instance, if you have an Elasticsearch cluster, there is no need to open ports other than 9200 and 9300 to your applications.
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Index Developer Conference is a new conference organized by IBM to promote software development as a craft. The event took place at the Moscone Center, San Francisco , a popular software conference venue, on February 20-22, 2018. This was my first conference of the year and I was very excited about being invited to give 2 talks in 2...
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Index Developer Conference is a new conference organized by IBM to promote software development as a craft. The event took place at the Moscone Center, San Francisco , a popular software conference venue, on February 20-22, 2018. This was my first conference of the year and I was very excited about being invited to give 2 talks in 2...
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Testing at warp speed: Why you should care about your test speed
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tech.nextroll.com
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8 years ago
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eng
We reduced our test run times by more than 50%, thus speeding up development and deployment considerably with the application of some generic tips that you can use in your system as well. 15-20 minute read As you can read in our previous blog post , at AdRoll we use Erlang/OTP extensively. In particular, we use it to build our real-time bidding platform . These systems are central to our business and that’s why we’re very rigorou....
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This story documents one scenario that could happen when the nightmare happens of a massive power cut across Europe. It starts with a number of threads and weaves them well together. It follows an Italian as he realizes it is a terrorist attack on the smart power meters. This destabilizes the power grid which takes down most of the grid across Europe. A second attack targets the power plants. This leads to a power cut across Europe that las..
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A project was struggling to deliver in time and the project manager resolved it by reducing the team size where the typical approach is to increase the team size. This decision was based on the overhead of communication and Brooks Law.
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This story documents one scenario that could happen when the nightmare happens of a massive power cut across Europe. It starts with a number of threads and weaves them well together. It follows an Italian as he realizes it is a terrorist attack on the smart power meters. This destabilizes the power grid which takes down most of the grid across Europe. A second attack targets the power plants. This leads to a power cut across Europe that las..
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A project was struggling to deliver in time and the project manager resolved it by reducing the team size where the typical approach is to increase the team size. This decision was based on the overhead of communication and Brooks Law.
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Fine particulate matter is a serious issue in many cities around the world. In Europe, it is estimated to cause 400.000 premature deaths per year. European Union has published standards on the matter, and warned several countries that haven’t been able to reach the safe limits. Germany saw the highest number of deaths attributable to all air pollution sources, at 80,767. It was followed by the United Kingdom (64,351) and France (63,79....
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Fine particulate matter is a serious issue in many cities around the world. In Europe, it is estimated to cause 400.000 premature deaths per year. European Union has published standards on the matter, and warned several countries that haven’t been able to reach the safe limits. Germany saw the highest number of deaths attributable to all air pollution sources, at 80,767. It was followed by the United Kingdom (64,351) and France (63,79....
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Fine particulate matter is a serious issue in many cities around the world. In Europe, it is estimated to cause 400.000 premature deaths per year. European Union has published standards on the matter, and warned several countries that haven’t been able to reach the safe limits. Germany saw the highest number of deaths attributable to all air pollution sources, at 80,767. It was followed by the United Kingdom (64,351) and France (63,79....
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Fine particulate matter is a serious issue in many cities around the world. In Europe, it is estimated to cause 400.000 premature deaths per year. European Union has published standards on the matter, and warned several countries that haven’t been able to reach the safe limits. Germany saw the highest number of deaths attributable to all air pollution sources, at 80,767. It was followed by the United Kingdom (64,351) and France (63,79....
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Introduction For the blog post still being written on variatonal methods, I referred to the still excellent Bishop (2006) who uses as his example data, the data available in R for the geyser in Yellowstone National Park called “Old Faithful”. While explaining this to another statistician, they started to ask about the dataset. Since I … Continue reading Reproducibility and Old Faithful
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