Diagnosing SAML and Google login failures caused by clock drift after a FreeIPA upgrade, with checks of chronyd and NTP synchronization.

Working with native C interfaces from Java and Clojure through GraalVM, using Datalevin's native-image development as a practical example.

Investigating FreeIPA Web server and login failures after a Let's Encrypt certificate renewal, with steps to repair certificate trust.

Experiences running Clojure applications with ZGC, including large-page configuration and the memory-management problems encountered under heavy allocation.

Setting up SAML2 authentication for on-premise Sentry with Keycloak, including client registration and the settings needed to connect the two services.

Building an nginx Debian package with LDAP authentication and virtual-host traffic statistics modules on Debian 10 Buster.

Adding live draft preview links to self-hosted Netlify CMS through GitHub commit statuses, Jenkins builds, and nginx hosting.

Enabling SAML single sign-on for self-hosted Netlify CMS with gotrue and git-gateway so editors can use an existing corporate identity system.

Moving this long-running blog from Drupal to Pelican and Netlify CMS after hosting limits made maintenance and publishing increasingly difficult.

Lessons from moving a DokuWiki installation between servers during a migration from AWS to Google Cloud, testing the promise of a simple file-based move.

Fixing Discourse backups against an external PostgreSQL server by updating the container's PostgreSQL tools to resolve a pg_dump version mismatch.

Adding FreeIPA LDAP authentication to a self-hosted Sentry Docker installation, including build dependencies and Django LDAP configuration.

Connecting Jenkins to FreeIPA's LDAP security realm, including a service account, user and group searches, and testing the authentication settings.

Configuring FreeIPA on AWS EC2, using Route 53 to handle the internal and public DNS records needed for cloud-hosted identity services.

Migrating this blog from Drupal 6 to Drupal 8 with a separate test site and Drush, including hosting constraints and problems encountered along the way.

Fixes for problems encountered when upgrading a MacBook Pro from Snow Leopard to Mountain Lion, including broken SSH public-key access.

Experiences with several vacuum cleaners in a home with two long-haired cats, comparing cleanup on carpet, hardwood, and other surfaces.

Notes on a pdfLaTeX pixel-dimension setting used while troubleshooting a blurry screenshot in a camera-ready conference paper.

Recording a registry fix used when Windows 7 or XP grays out the screen saver's logon-on-resume option and triggers workplace security alerts.

Using Clojure to count maps between sets while working through early exercises in Lawvere's Conceptual Mathematics and learning category theory.