Apache2 Advanced Features

2 days (16 hours total)
Focus: performance, reverse proxying, load-balancing, security modules, caching, advanced SSL, automation, troubleshooting.


Day 1 – Performance, Reverse Proxying, Caching, Architecture

1. Advanced MPM & Threading

Event tuning in depth, thread/workers model, CPU pinning, connection handling, keepalive queues, impact of slow clients.

2. Reverse Proxy Architecture

mod_proxy internal flow, request pipes, buffering, streaming, backend health checks, timeout tuning.

3. Load Balancing

mod_proxy_balancer, session stickiness, hot-standby nodes, lbmethods, draining nodes, failover behaviour.

4. Advanced Caching

mod_cache, disk vs memory caching, cache invalidation, key normalization, stale-while-revalidate, reverse proxy caching patterns.

5. Advanced Rewriting

Deep mod_rewrite rules, complex conditions, dynamic maps, rewrite loops, performance considerations.

6. WebSockets & Upgrade Handling

Proxy WebSocket support, protocol upgrade, reverse proxy tuning for streaming and long-lived connections.


Day 2 – Security, TLS, Observability, Automation

7. Advanced TLS

TLS 1.3 tuning, cipher suites, OCSP stapling, ALPN behaviour, performance impacts, client fingerprinting considerations.

8. mod_security2 Deep Dive

Rule writing, anomaly scoring, CRS tuning, whitelisting, false-positive analysis, request inspection pipeline.

9. Advanced Authorization

External auth providers, LDAP/AD integration, JWT/OAuth2 offload patterns, per-location auth flows.

10. Rate Limiting & DoS Protection

mod_ratelimit, request filtering, body size limits, timeout matrix, slowloris defense, reverse-proxy throttle logic.

11. Logging & Observability

Custom log formats, JSON structured logs, correlation IDs, per-vhost log tuning, log piping, high-volume logging strategies.

12. Performance Debugging

mod_status, scoreboard analysis, connection states, thread utilization, slow request hunting, backend latency isolation.

13. Automation & CI/CD Integration

Config modularization, template-based deployments, git-based config repos, Apache test automation with apachectl -t & containers.

14. Zero-Downtime Reload & Rolling Deployments

Graceful restarts, phased config rollout, draining traffic between nodes, how not to break long-lived connections.