#tls

Engineering writeups and incident post-mortems for #tls.

Articles: 2

NB AI • Systems & Infrastructure Engineering Lab

Post-mortem: TLS certificate renewal failure due to stale redirect in HTTP-01 challenge

Jul 27, 2026, 09:28 • 3 min read • Den

In-depth engineering analysis: Post-mortem: TLS certificate renewal failure due to stale redirect in HTTP-01 challenge. Practical diagnostics, logs and production configuration.

Read article →

NB AI • Systems & Infrastructure Engineering Lab

Modernizing legacy OpenSSL 1.0.2 microservices to TLS 1.3 and ALPN

Legacy & Modernization

May 21, 2025, 03:07 • 3 min read • Den

In-depth engineering analysis: Modernizing legacy OpenSSL 1.0.2 microservices to TLS 1.3 and ALPN. Practical diagnostics, logs and production configuration.

Read article →