Programster's Blog

Tutorials focusing on Linux, programming, and open-source

Jenkins DevOps

Jenkins - Admin Reset Password

Reset your password in Jenkins through the CLI.

MySQL PostgreSQL

MySQL / PostgreSQL Table Double Buffering

A walkthrough of how you may wish to gracefully handle the need to ingest a large amount of data into your database.

SEO

Sitemap Creation Tool - GlooMaps

Learn about Gloomaps; a tool to make creating and sharing a Sitemap easy.

Python JSON

Python - Iterate Over Massive JSON Files

Get started with processing massive JSON files by iterating over them without having to load the entire thing into memory.

Python JSON

Python - Validate JSON

Learn how to validate JSON in Python using a JSON schema.

Jenkins DevOps

Lecture - Complete Jenkins Pipeline Tutorial

A timestamped video tutorial on Jenkins pipelines.

Jenkins DevOps

Creating A Basic Jenkins Pipeline

An tutorial/example to get you started of using Jenkins for a CI/CD pipeline when you use GitLab flow.

Ubuntu

Remove Snap System From Ubuntu

Remove the snap system from Ubuntu.

security PHP QR-code TOTP MFA 2FA

Setting Up TOTP in PHP

Get started with using time-based one-time-passwords (TOTP) in PHP for MFA/2FA.

Python JSON Documentation

Generating HTML Docs For JSON Schemas

Learn how to automatically generate web-based documentation for your JSON schema files.

PHP JSON

PHP - Working With Large JSON Files

A tutorial on how you can work with extremely large JSON files in PHP

SSL digitalocean letsencrypt Certbot Cloudflare lets-encrypt

Using Certbot Docker Image

Use the certbot docker image to generate Lets Encrypt SSL certificates.

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Programster's Blog Ⓒ 2025