Programster's Blog

Tutorials focusing on Linux, programming, and open-source

DNS

Using DigitalOcean for DNS

Instructions for switching to DigitalOcean as a DNS provider.

PHP composer

Composer Aliases

How you can use aliases for package names for testing dev branches.

Selenium testing

Configuring Headless Server for Selenium Testing

Some useful info on setting up a remote headless VPS so it can run selenium tests without using a headless browser.

cli wget

Axel - Faster Downloads From the CLI

Download things in the CLI faster with Axel

TypeScript

Ubuntu - Install Typescript

Install Typescript on Ubuntu 16.04.

OpenVPN

OpenVPN - Allow Clients To Talk To Each Other

Configure openvpn clients to talk to each other.

PHP php-multithreading

Compile PHP 7.2 with pthreads

Install PHP 7.2 With Pthreads for multithreading

PHP php-multithreading

PHP Multithreading - Thread Pool Example

An example of using a thread pool for handling threads more efficiently.

Python AI Tensorflow Python3

Install TensorFlow For Python3

Instructions for installing Tensorflow using Python 3 and PIP on Ubuntu 16.04.

DNS

Use OpenDNS

IP addresses for OpenDNS

PHP Selenium

Getting Started With Selenium Testing using PHP

Get started with using Selenium for automating tests, and writing those tests in PHP.

mkv video-editing mkvmerge

Fix Aspect Ratio of MKV Files

Fix MKV video files that have a stretched look due to an incorrect aspect ratio.

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Programster's Blog Ⓒ 2026