Infrastructure tutorials
Production-grade guides for Linux, servers, security and performance. Copy-paste commands, multi-distro support, written by engineers who run this in production.
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Linux
System administration, shell scripting, package management
Hosting & Servers
Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
Caching, optimization, profiling, load testing
Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
CI/CD, Docker, Kubernetes, automation
Monitoring
Logging, alerting, metrics, observability
Most viewed
Configure Linux system time synchronization with chrony and NTP hardening
linuxInstall and configure CockroachDB cluster with high availability and distributed SQL
databasesConfigure network interface monitoring with ICMP ping and connectivity testing
networkingInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesInstall and configure ArgoCD for GitOps continuous deployment with RBAC and SSL
devopsRecently published
Implement Podman pod security with network policies and microsegmentation
securityConfigure Apache Airflow high availability with CeleryExecutor and Redis clustering for production deployments
devopsConfigure advanced gRPC load balancing with Envoy Proxy health checks and circuit breakers
networkingConfigure custom Grafana plugins for specialized monitoring requirements
monitoringConfigure NGINX monitoring with Prometheus and Grafana dashboards for real-time web server performance metrics
monitoringConfigure Linux swap space with memory management and performance optimization
Set up and optimize Linux swap space for better system performance. Learn to create swap files, configure swappiness parameters, and monitor memory usage across different Linux distributions.
Configure Linux container memory limits and monitoring with systemd and cgroups v2
Set up memory limits and monitoring for containers using systemd services and cgroups v2 to prevent OOM kills and track resource usage.
Configure Linux kernel parameters with sysctl for system optimization
Learn to view, modify, and persist Linux kernel parameters using sysctl for system performance tuning. Configure network, memory, and security settings safely with temporary and permanent changes.
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