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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Configure Linux system time synchronization with chrony and NTP hardening

linux
686

Install and configure CockroachDB cluster with high availability and distributed SQL

databases
650

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
640

Configure network interface monitoring with ICMP ping and connectivity testing

networking
637

Install and configure ArgoCD for GitOps continuous deployment with RBAC and SSL

devops
618

Recently published

Set up GitLab container registry mirror and proxy cache for improved performance

devops
4 hours ago

Configure SonarQube quality gates and custom rules for enterprise code analysis

devops
4 hours ago

Set up Consul multi-datacenter replication with ACL token replication

devops
4 hours ago

Set up Kafka Connect cluster with high availability and load balancing

devops
4 hours ago

Integrate AWX 24.6 with HashiCorp Vault for dynamic secrets management and secure automation workflows

devops
9 hours ago
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hosting Advanced

Configure OpenResty with PostgreSQL connection pooling for database integration

Set up OpenResty with lua-resty-postgres for high-performance database connection pooling. This tutorial covers installation, connection management, health checks, and security hardening for production web applications.

45 min 4 distros 69 views
devops Advanced

Configure SonarQube high availability clustering with PostgreSQL and load balancing

Set up enterprise-grade SonarQube clustering with PostgreSQL database replication, multiple application nodes, and HAProxy load balancing for zero-downtime code quality analysis across distributed teams.

90 min 4 distros 126 views
hosting Intermediate

Configure Lighttpd 1.4 with multiple virtual hosts and subdomains

Set up Lighttpd web server with multiple virtual hosts, subdomain routing, SSL certificates, and performance optimization for hosting multiple websites on a single server with security hardening.

45 min 4 distros 51 views
devops Intermediate

Configure Kubernetes pod disruption budgets for high availability with policy enforcement

Learn to configure PodDisruptionBudget resources in Kubernetes to maintain application availability during voluntary disruptions. This tutorial covers creating disruption budgets, implementing policies for different workload types, and monitoring disruption events with kubectl.

45 min 4 distros 101 views
networking Intermediate

Install and configure Squid 6 proxy server with bandwidth controls and content filtering

Set up Squid 6 proxy server with advanced traffic shaping, content filtering, and user authentication. Configure bandwidth limits, access control lists, and comprehensive logging for enterprise proxy deployments.

45 min 4 distros 64 views
security Intermediate

Setup Nginx with ModSecurity 3 web application firewall for advanced threat protection

Configure Nginx with ModSecurity 3 and OWASP Core Rule Set to protect web applications against SQL injection, XSS, and other common attacks. This tutorial covers complete WAF setup with security rules, performance optimization, and threat testing.

45 min 4 distros 112 views
performance Advanced

Optimize Linux RAID configuration for maximum disk performance with mdadm and advanced tuning

Learn how to configure and optimize Linux RAID arrays with mdadm for maximum disk performance. This comprehensive guide covers RAID level selection, advanced mdadm parameters, kernel I/O scheduler optimization, and file system tuning for high-throughput workloads.

45 min 4 distros 213 views
performance Advanced

Configure Apache Airflow performance optimization with connection pooling and resource tuning

Optimize Apache Airflow performance through advanced connection pooling, resource tuning, and Celery executor configuration. Learn to scale workers, configure database pools, and implement comprehensive monitoring for production workflows.

45 min 4 distros 185 views
devops Intermediate

Configure SonarQube quality gates and automated project analysis with multi-language support

Set up custom SonarQube quality gates with automated project analysis for multiple programming languages. Configure SonarScanner integration, webhook notifications, and CI/CD pipeline automation for continuous code quality monitoring.

45 min 4 distros 118 views
performance Intermediate

Set up Linux performance monitoring with perf tools and flame graphs

Configure perf tools and FlameGraph toolkit to capture detailed CPU profiling data and generate interactive flame graphs for Linux performance analysis. Monitor application hotspots, CPU usage patterns, and identify performance bottlenecks in production environments.

45 min 4 distros 96 views
performance Advanced

Implement Varnish cache warming with Kubernetes CronJobs

Set up automated Varnish cache warming using Kubernetes CronJobs to preload frequently accessed content and improve website performance. This tutorial covers creating cache warming scripts, Docker containers, and automated scheduling for production environments.

45 min 4 distros 108 views
monitoring Advanced

Implement Thanos multi-cluster federation for global Prometheus metrics aggregation

Set up Thanos components across multiple Kubernetes clusters to enable global metrics federation, long-term storage, and unified querying of Prometheus data with high availability and unlimited retention.

45 min 4 distros 92 views

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