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
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 Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsConfigure Linux system time synchronization with chrony and NTP hardening
linuxRecently published
Configure Django Redis caching and session storage for high-performance web applications
performanceSet up Kafka Streams testing framework with TopologyTestDriver for automated stream processing validation
devopsBenchmark database performance with sysbench and fio integration
databasesConfigure automated system maintenance with advanced cron scheduling and shell scripts
linuxConfigure Consul multi-datacenter WAN federation for geographic redundancy
devopsSet up LUKS full disk encryption during Linux installation
Configure full disk encryption with LUKS during OS installation to secure your data at rest. Includes post-installation key management, performance optimization, and troubleshooting for production systems.
Configure Node.js application monitoring with PM2 and Grafana
Set up comprehensive Node.js application monitoring using PM2 process manager with Prometheus metrics collection and Grafana dashboards for production-grade observability and alerting.
Configure Nagios custom plugins development for specialized monitoring requirements
Learn to develop custom Nagios plugins for specialized monitoring requirements including setting up the development environment, writing check scripts in multiple languages, and integrating them into your Nagios Core monitoring infrastructure.
Configure Nagios Core 4.5 SSL certificates and security hardening with authentication controls
Secure your Nagios monitoring with SSL certificates, advanced authentication, and comprehensive access controls. This guide covers Let's Encrypt integration, web interface hardening, and security monitoring setup.
Set up Nagios Core 4.5 distributed monitoring with NRPE for remote host checks
Configure Nagios Core server with NRPE agents for distributed monitoring across multiple servers. Set up remote host checks, service monitoring, and centralized alerting for comprehensive infrastructure oversight.
Configure SELinux mandatory access controls for enhanced security
Set up SELinux on Ubuntu and Debian systems, configure security modes and policies, create custom application rules, and implement comprehensive monitoring for enhanced Linux security hardening.
Configure SSH certificate authentication with CA signing for secure server access
Set up SSH certificate-based authentication using a Certificate Authority to eliminate individual key management. Create signed user certificates that provide secure, scalable access control for multiple servers and users.
Monitor Cherokee web server performance with Grafana and Prometheus metrics collection
Set up comprehensive Cherokee web server monitoring with Prometheus metrics collection and Grafana dashboards. Configure alerting rules, performance thresholds, and real-time visualization for production Cherokee deployments.
Monitor OSPF network topology with Prometheus and Grafana dashboards
Set up comprehensive OSPF network monitoring using FRRouting, Prometheus SNMP exporter, and Grafana dashboards to track network topology changes, LSA states, and routing convergence in real-time.
Monitor Jetty performance with JMX and Grafana dashboards
Set up comprehensive Jetty monitoring using JMX metrics collection with Prometheus JMX Exporter and visualize performance data through custom Grafana dashboards with automated alerting.
Configure Jetty clustering and session replication for high availability
Set up Eclipse Jetty 12 in a clustered configuration with session replication across multiple nodes. This tutorial covers installation, clustering setup with JDBC session persistence, load balancer integration, and production monitoring for high-availability web applications.
Configure systemd service resource limits and security isolation
Configure cgroups v2 resource limits and security isolation for systemd services to prevent resource exhaustion and improve system security. This tutorial covers memory, CPU, and I/O limits with monitoring and troubleshooting.
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