Programster's Blog

Tutorials focusing on Linux, programming, and open-source

LibreOffice conditional-formatting

LibreOffice Calc - Conditional Formatting

Apply conditional formatting rules in LibreOffice Calc.

Debian Docker install Bullseye

Debian 11 - Install Docker

Install Docker on Debian 11 (Bullseye).

Debian KVM cloud-init

Create Debian 11 (Bullseye) KVM Guest From Cloud Image

Create a Debian 11 KVM guest using the cloud image.

FFmpeg

FFMPEG - Output Progress To File

Get FFmpeg to output the progress of an encoding job to a text file that can be easily parsed.

SAML SSO

Deploy A Test SAML Identity Provider

Learn how to quickly deploy an example SAML identity provider that you can develop/test your service provider against.

SSL tls

Create Your Own Private SSL/TLS Certificates

Learn how to create your own private SSL/TLS certificates.

fonts

Install Iosevka Fonts

Install the Iosevka font on Ubuntu.

Mailtrain newsletter

Deploy Mailtrain v1 With Docker

Learn how to deploy your own Mailtrain server with docker. Mailtrain is an open source alternative to Mailchimp.

Mailtrain newsletter

Mailtrain 2 - Configure Generic SMTP

Configure Mailtrain 2 to send emails through your SMTP provider.

security UFW firewall

UFW Cheatsheet

A cheatsheet for using the uncomplicated firewall (UFW).

lectures SAML SSO

Lecture - OAuth vs. SAML vs. OpenID Connect - Michael Schwartz

A timestamped lecture from Michael Schwartz covering the history and differences between various SSO technologies/protocols.

Python github packages

Install Python Packages Hosted On Private GitHub

Learn how to install python packages through pip, when the packages are hosted within a private GitHub repository.

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Programster's Blog Ⓒ 2025