Upgrading legacy stacks (MySQL 5.7, OpenSSL), monolith decomissioning, migrating iptables to nftables.
Total articles: 9In-depth engineering analysis: Upgrading legacy CentOS 7 workloads to modern Rocky Linux 9 without service interruptions. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Replacing aging HAProxy setups with lightweight modern proxies supporting dynamic service discovery. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Modernizing legacy OpenSSL 1.0.2 microservices to TLS 1.3 and ALPN. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Refactoring 15-year old Perl and Bash deployment glue into single static Go binary. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Silent data corruption in legacy C daemon: struct packing alignment and x86-64 ABI mismatch. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Migrating crontab spaghetti to systemd timers: memory isolation, logs and restart policies. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: MySQL 5.7 to 8.0 upgrade: optimizer regression with utf8mb4_0900_ai_ci collation. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Migrating from iptables-legacy to nftables on a 40G edge router. Practical diagnostics, logs and production configuration.
In-depth engineering analysis: Docker devicemapper loop-lvm: legacy production node crashes and migration to overlay2. Practical diagnostics, logs and production configuration.
