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
linuxSet up Node.js application security with Helmet and rate limiting
securityConfigure network interface monitoring with ICMP ping and connectivity testing
networkingInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingRecently published
Setup Gunicorn blue-green deployment with NGINX for zero downtime Python applications
devopsConfigure Tailscale monitoring with Prometheus and Grafana dashboards
monitoringSet up Linux network traffic shaping with tc and QoS for bandwidth management
networkingConfigure backup compression and deduplication with BorgBackup and rsync for optimal storage efficiency
linuxSet up PostgreSQL 17 streaming replication with PgBouncer connection pooling and load balancing
databasesSetup Elasticsearch monitoring with Metricbeat and Kibana dashboards
Monitor your Elasticsearch cluster performance with Metricbeat for comprehensive metrics collection and visualization through pre-built Kibana dashboards. This tutorial covers installation, configuration, and automated alerting.
Monitor system resources with Netdata real-time performance dashboard
Set up Netdata for comprehensive real-time monitoring of CPU, memory, disk, and network resources with a web-based dashboard, email alerts, and customizable thresholds.
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