TA551 Engineering BlogPractical engineering notes on Linux infrastructure, cybersecurity labs, AI automation, and reliable web operations.https://ta551.info/blog/en-US Safe Nginx Deployments with GitHub Actions and Rollbackhttps://ta551.info/blog/github-actions-nginx-deployment/https://ta551.info/blog/github-actions-nginx-deployment/Wed, 14 Oct 2026 00:00:00 GMTAn engineering case study of how I staged and verified a blog and portfolio update on a shared Nginx VPS without overwriting unrelated websites or API routes.Linux Server Hardening: A Practical Review Checklisthttps://ta551.info/blog/linux-server-hardening/https://ta551.info/blog/linux-server-hardening/Wed, 14 Oct 2026 00:00:00 GMTA practical, evidence-first Linux VPS security checklist covering SSH access, least privilege, exposed ports, Nginx, TLS, updates, logging, backups, and safe deployment.Building a Local AI SOC Lab with Wazuh and Qwenhttps://ta551.info/blog/wazuh-ai-security-lab/https://ta551.info/blog/wazuh-ai-security-lab/Tue, 13 Oct 2026 00:00:00 GMTHow I built a review-first Wazuh SIEM lab with OpenSearch, Python, SQLite, and local Qwen AI—and validated pagination, event state, and safe incident triage.