# Things on a Heap

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A Collection of Programming Ramblings by chjdev

–IN PROGRESS–

# BRVTY - Ain't nobody got time for that

BRVTY is the result of a quick Sunday afternoon hack. It shortens web articles. Just drag the bookmarklet (image) to your bookmark bar and press it on an article you want to have shortened.

# Docker overrules UFW!

Docker, by default, directly manipulates iptables in order to work its network magic. It thus completely circumvents UFW rules! In this post I show strategies to deal with this.

# TLS secured Docker on Ubuntu 16.04 Quickstart

Installing a Vanilla-Docker environment on Ubuntu 16.04 was surprisingly non-straightforward for me. Turns out it would have been actually quite simple, but the docs and tutorials seem to be still assuming 14.04/non-systemd and led me in circles a bit.

# HyperLogLog - Big Data™ in your Browser

In this post we’ll take a look at HyperLogLog, a probabilistic data structure that allows you to estimate the cardinality of huge data sets with minuscule memory requirements. This page is running an implementation JavaScript and uses 4kb to estimate a cardinality of up to 10,000,000 unique visitors based on 50,000,000 randomly generated visits.