folder / home / devops_portfolio / tutorials

Knowledge Base

Operational playbooks, deep dives into modern infrastructure, and step-by-step guides for automating the unpredictable.

Networking
schedule 12 min read

Zero-Trust Kubernetes Networking with Cilium

A comprehensive guide to implementing eBPF-based networking and security policies across multi-cluster Kubernetes environments.

K8S eBPF
Security
schedule 8 min read

Hardening Docker Daemons in Production

Step-by-step tutorial on securing Docker sockets, configuring user namespaces, and implementing seccomp profiles to prevent container escapes.

Docker SecOps
OS / Core
schedule 15 min read

Linux Kernel Tuning for High-Throughput DBs

Optimizing sysctl parameters, configuring hugepages, and tweaking I/O schedulers to squeeze maximum performance for PostgreSQL workloads.

Linux PostgreSQL