Same-origin policy

"The same-origin policy is a critical security mechanism that restricts how a document or script loaded from one origin can interact with a resource from another origin. It helps to isolate potentially malicious documents, reducing possible attack vectors."

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How to Debug using Xdebug and PHPStorm from a Remote Server

"I know what you’re thinking. Who in their right mind would want to develop using a remote server when you have Docker and all that other useful stuff? But, trust me, if you come into this unfortunate situation, you’ll be sending me all your love (or a beer, which is almost the same thing)."

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Please stop recommending Git Flow!

"Git-flow is a branching and merging methodology popularized by this blog post, entitled “A Successful Git branching model”. In the last ten years, countless teams have been snookered by the headline and dare I say lied to."

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Paging

"In computer operating systems, paging is a memory management scheme by which a computer stores and retrieves data from secondary storage[a] for use in main memory.[1] In this scheme, the operating system retrieves data from secondary storage in same-size blocks called pages."

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How to Protect Against Slow HTTP Attacks

"Slow HTTP attacks are denial-of-service (DoS) attacks in which the attacker sends HTTP requests in pieces slowly, one at a time to a Web server. If an HTTP request is not complete, or if the transfer rate is very low, the server keeps its resources busy waiting for the rest of the data."

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CppCon 2014: Chandler Carruth "Efficiency with Algorithms, Performance with Data Structures"

"Why do you write C++ code? There is a good chance it is in part because of concerns about the performance of your software. Whether they stem from needing to run on every smaller mobile devices, squeezing the last few effects into video game, or because every watt of power in your data center costs too much, C++ programmers throughout the industry have an insatiable desire for writing high performance code."
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.bash_profile vs .bashrc

"When working with Linux, Unix, and Mac OS X, I always forget which bash config file to edit when I want to set my PATH and other environmental variables for my shell. Should you edit .bash_profile or .bashrc in your home directory?"

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Remove/Delete all duplicate lines

"There are a lot of ways to remove duplicate lines, but I want to leave only the unique lines, and delete all duplicated lines. There are thousands of lines I need to remove, and the unique lines are just 10-20 mixed with all those duplicate lines."

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Dark Isn’t Just a Mode

"In my last column, I wrote about dark patterns, but this time I want to discuss something that is literally rather than metaphorically dark: inverted polarity–display methods, or dark mode. But, for many UX designers, dark mode is a new thing because operating systems are now supporting it."

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The Wrong Abstraction — Sandi Metz

"I originally wrote the following for my Chainline Newsletter, but I continue to get tweets about this idea, so I'm re-publishing the article here on my blog. This version has been lightly edited. I've been thinking about the consequences of the "wrong abstraction."

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The Git Rebase Introduction I Wish I'd Had

"One of the most important (and confusing) git features in my new job was rebasing. Looking back now, the worst part was not finding a clear beginner's guide. So for the past me, and any future devs like the past me, this intro is for you!"

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Understanding the Hidden Powers of curl

"curl is exceedingly powerful – unfortunately, much of this power is somewhat hidden in the purposeful non-verbosity and the underlying complexity of its numerous flags, configurations, and options. Once understood, curl boasts a wide range of powerful options."

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htop explained

"For the longest time I did not know what everything meant in htop. I thought that load average 1.0 on my two core machine means that the CPU usage is at 50%. That's not quite right. And also, why does it say 1.0? I decided to look everything up and document it here."
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Awesome Design Tools

"The best design tools for everything. Curated by Lisa Dziuba & Valia Havruliyk from Flawless team. Accessibility is the practice of creating websites and apps usable for all people, including individuals with visual, motor, auditory, speech, or cognitive disabilities."

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Events API

"This event does not require a specific OAuth scope or subscription. You'll automatically receive it whenever configuring an request URL. The attributes Slack sends include: Careful, response URLs are case sensitive."

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Automatically respond to Slack messages containing specific text / Paweł Fertyk

"Recently I tried to create a Slack bot. It's job was to read messages and, if 'that would be great' was detected in the content, respond to the message with a picture of Bill Lumbergh from Office Space (yeah, I'm a funny guy)."

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Would using varchar(5000) be bad compared to varchar(255)?

"Yes, varchar(5000) can be worse than varchar(255) if all values will fit into the latter. The reason is that SQL Server will estimate data size and, in turn, memory grants based on the declared (not actual) size of the columns in a table."

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