Anardil

A spot of sunlight

Articles with the article tag

Sun 09 September 2018

Programming

By Austin

Stream Programming

Introduction Most simple iterative programming tasks can be rephrased in terms of a 'map' or 'reduce' operation. The advantage here is that if we can work our problem into a map - reduce problem, we can easily increase parallelism. A simple example...

Mon 30 July 2018

Programming

By Austin

Dynamic Shell Scripting

Summary We can use declare, eval and text manipulation tools like awk and sed to dynamically redefine shell functions based on their content or name. This allows us to add lines or generate entirely new functions. Introduction Bash and other shell...

Mon 13 November 2017

Programming

By Austin

Practical Coprocesses

Introduction Coprocesses expose a way to run a subshell asychronously, while maintaining full communication through pipes. In a typical script, you can run commands in the background (asychronously) with the & operator. This allows tasks to be worked...

Sat 16 January 2016

Reviews

By Austin

Adventures in Anonymity

There are a lot of ways to gain some anonymity on the web, of which proxies and VPNs are quite common. In particular, Squid3, SSH, Tor, and OpenVPN are great free options if you're looking to run your own service. I've used all of these while...

Tue 15 December 2015

Articles

By Austin

Internet Protocol Security (IPSec)

Table of Contents Abstract Overview Suite Authentication Header Encapsulating Security Payloads Security Associations and Parameters Internet Key Exchange Operation Modes Tunnel Transport Conclusion References Abstract This document will describe the...

Wed 11 November 2015

Reviews

By Austin

Das Keyboard Review

I got my new keyboard about three weeks ago now, and absolutely love it. I can't say much to compare it with other mechanical keyboards since this is my first, but this is by far the best keyboard I've ever used. The keys are blank, which is pretty...

Sun 08 November 2015

Programming

By Austin

Racket

Racket is a dialect of Scheme, which itself is a derivate of Lisp. It's a functional language, which I find very appealing. A lot can be expressed very concisely and elegantly. It's not my go-to language for everything, but whenever I have a question...