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
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Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
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Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
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Monitoring
Logging, alerting, metrics, observability
Most viewed
Install and configure Deno for web development with systemd and reverse proxy
hostingInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securityConfigure Linux audit system with auditd for security compliance and file monitoring
Set up the Linux audit system with auditd to monitor file access, user activities, and system calls for security compliance. Learn to create audit rules, analyze logs, and track privilege escalations.
Configure Apache Cassandra cluster with multi-node setup and performance optimization
Set up a production-ready Apache Cassandra cluster with multiple nodes, configure replication strategies, and optimize JVM settings and performance parameters for high-throughput distributed NoSQL workloads.
Configure Linux log rotation with logrotate and compression for system maintenance
Master log rotation with logrotate to manage disk space efficiently. Configure custom rotation policies, compression settings, and automated cleanup for applications and system logs.
Configure Linux kernel parameters for container workloads with sysctl optimization
Configure Linux kernel parameters for optimal container performance with sysctl tuning. This guide covers memory management, network stack optimization, file descriptor limits, and security parameters for Docker and Podman workloads.
Configure ClamAV antivirus scanning with automated threat detection and email alerts
Set up ClamAV daemon for real-time malware detection with automated scanning schedules, email notifications for threats, and optimized performance settings for production servers.
Configure Linux system resource limits with systemd and ulimit for application performance
Learn to configure Linux system resource limits using systemd, ulimit, and /etc/security/limits.conf to prevent application failures from resource exhaustion. Master per-user, per-service, and system-wide limits for optimal performance.
Configure Linux disk usage monitoring and automated cleanup with systemd timers
Set up automated disk monitoring, log cleanup, and email alerts using systemd timers to prevent disk space issues. Configure log rotation, temporary file cleanup, and threshold-based alerting for production systems.
Configure Linux system logging with rsyslog and journald for centralized log management
Set up comprehensive Linux logging infrastructure using rsyslog for traditional syslog handling and journald for systemd service logs. Configure remote logging, log rotation, filtering rules, and troubleshoot common logging performance issues.
Configure Linux memory management and swap optimization for high-performance workloads
Optimize Linux memory subsystem performance through advanced swap configuration, virtual memory tuning, and memory compression techniques. Learn to configure transparent huge pages, zram, and application-specific memory settings for high-performance workloads.
Configure Elasticsearch 8 cluster with multiple nodes for high availability and scalability
Set up a production-ready Elasticsearch 8 cluster with dedicated master, data, and coordinating nodes for high availability, fault tolerance, and horizontal scalability across multiple servers.
Optimize Elasticsearch 8 indexing performance for large datasets with bulk operations and memory tuning
Configure Elasticsearch 8 for maximum indexing performance when handling large datasets through bulk API optimization, JVM memory tuning, and index mapping strategies. This guide covers production-grade performance tuning for high-throughput indexing workloads.
Monitor Istio service mesh with Prometheus and Grafana dashboards
Configure comprehensive monitoring for your Istio service mesh using Prometheus for metrics collection and Grafana for visualization. Set up observability dashboards to track traffic flow, security policies, and service performance with production-ready alerting rules.
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