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 Uptime Kuma for website monitoring with SSL and email alerts
monitoringInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure TimescaleDB with PostgreSQL for high-performance time-series data
databasesInstall and configure Ollama for local AI models on Linux servers
devopsRecently published
Configure PostgreSQL 17 SSL encryption and certificate-based authentication
databasesSet up HAProxy SSL termination with Let's Encrypt certificates
networkingConfigure HAProxy with Consul for dynamic service discovery
networkingConfigure PostgreSQL 17 connection pooling with PgBouncer for high availability
databasesConfigure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault
devopsConfigure custom SNMP MIBs for vendor-specific monitoring with SNMP v2c and v3
Learn to install and configure custom vendor MIB files for specialized network device monitoring using both SNMP v2c and v3 protocols with authentication and encryption.
Set up automated network topology discovery with SNMP and LLDP for infrastructure mapping
Build an automated network discovery system that uses SNMP and LLDP protocols to map your infrastructure topology, detect device relationships, and create visual network diagrams with real-time monitoring integration.
Configure Nagios SNMP monitoring for network devices with automated discovery and templates
Set up comprehensive SNMP monitoring in Nagios Core with automated network device discovery, custom templates for switches and routers, and real-time alerting for network infrastructure monitoring.
Implement SNMP device auto-discovery with network scanning and automated inventory management
Set up automated SNMP device discovery using nmap network scanning and Python scripts for dynamic inventory management. Integrate with Zabbix and Grafana for comprehensive network monitoring and visualization.
Configure Zabbix SNMP monitoring for network devices with automated discovery and templates
Set up comprehensive SNMP monitoring for network devices using Zabbix with automated discovery rules, custom templates, and intelligent alerting. Learn to monitor switches, routers, and other network equipment with performance triggers and detailed reporting.
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