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
monitoringInstall and configure Kubernetes cluster with kubeadm and security hardening
Set up a production-ready Kubernetes cluster using kubeadm with proper security hardening, RBAC configuration, and CNI networking. Includes worker node setup and verification steps.
Install and configure Ansible with automation best practices and security
Learn to install Ansible on Linux, configure secure SSH authentication, create production-ready playbooks with Vault encryption, and implement roles for scalable infrastructure automation.
Install and configure Consul for service discovery with clustering and security
Set up HashiCorp Consul for distributed service discovery with a secure three-node cluster, ACL authentication, and encrypted communication for production microservices environments.
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