blog.wlami.com

Welcome to my blog. Here I write about technology, security, cloud and programming. If you have any questions or need help with any of these topics, you should get in touch with me now:

Featured

• The case of the self-signed cert: how a Traefik v3.7 upgrade quietly broke TLS

  Published:May 29, 2026 |  at 08:00 PM

  A routine Traefik v3.6 to v3.7 upgrade silently served self-signed certs on every host while health checks stayed green. The wrong turn I took, the minimal kind reproduction that corrected me, and the one-line root cause: missing Gateway API v1.5.1 CRDs.

Recent Posts

• Migrating The Blog To Astro: Page Speed Insights Results

  Published:Jan 2, 2025 |  at 07:00 AM

  After migrating this technical blog to Astro, performance metrics show clear improvements: sub-second content delivery on desktop, perfect SEO scores, and significantly improved mobile experience. Check out the data-driven analysis of Core Web Vitals and their impact on content delivery.

• Back Online: Evolving Beyond Traditional Blog Architecture

  Published:Jan 1, 2025 |  at 01:00 PM

  After years building enterprise cloud infrastructure and launching a music tech startup, I'm bringing fresh perspectives to this technical blog.

• Migrated to Hugo

  Published:Nov 27, 2018 |  at 08:50 PM

  This blog post details the author's migration from Octopress to Hugo for static site generation, including steps for setting up a new Hugo project, choosing a theme, and moving content. It also describes a shell script used to add missing date tags to blog posts by extracting dates from filenames.

• PKCS11 Entwicklung ohne Hardware: SoftHSM als Smartcard oder HSM Ersatz

  Published:Jan 23, 2016 |  at 08:50 PM

  Dieser Beitrag erklärt, wie man SoftHSM installiert und konfiguriert, um es als PKCS#11 Token ohne Hardware zu verwenden.