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.

security Advanced

Implement Consul ACL security and encryption for production deployments

Configure Consul's Access Control List (ACL) system with bootstrap tokens, implement TLS encryption for client-server communication, and enable gossip encryption to secure your Consul cluster for production environments with comprehensive authentication and authorization.

45 min 4 distros 628 views
networking Intermediate

Setup Caddy with Consul service discovery for dynamic load balancing

Configure Caddy web server to automatically discover backend services through Consul, enabling dynamic load balancing without manual configuration updates. This setup provides high availability and automatic failover for microservices architectures.

45 min 4 distros 506 views
devops Advanced

Configure Consul backup and disaster recovery with automated snapshots and restoration

Set up automated Consul snapshots with verification, implement disaster recovery procedures, and configure monitoring for production-grade backup strategies that ensure service discovery data protection.

45 min 4 distros 665 views
monitoring Beginner

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.

25 min 6 distros 849 views
security Beginner

Configure Linux file permissions and access control with umask and chmod best practices

Learn how to configure secure Linux file permissions using chmod, set default permissions with umask, and implement proper access control to prevent security vulnerabilities while fixing permission denied errors.

25 min 6 distros 642 views
networking Intermediate

Configure network bridge interfaces for VM networking and container communication

Set up Linux network bridges to enable communication between virtual machines, containers, and physical networks. Configure bridge interfaces using netplan, bridge utilities, and implement security policies for production environments.

45 min 6 distros 673 views
networking Intermediate

Configure Tailscale mesh VPN with subnet routing and ACL policies for secure network access

Set up a zero-trust mesh VPN network with Tailscale that includes subnet routing for local network access, granular ACL policies for security, and exit nodes for secure internet access.

25 min 6 distros 729 views
linux Intermediate

Configure Linux system backup automation with rsync and systemd timers

Set up automated Linux system backups using rsync with SSH authentication, systemd timers for scheduling, retention policies, email notifications, and monitoring. Perfect for production environments requiring reliable backup automation.

25 min 6 distros 797 views
performance Intermediate

Optimize HAProxy performance with connection pooling and advanced load balancing algorithms

Configure HAProxy with connection pooling, advanced load balancing algorithms, and performance tuning for high-throughput workloads. Learn to implement least-conn, URI hashing, and buffer optimization.

25 min 6 distros 788 views
monitoring Intermediate

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.

45 min 4 distros 673 views
devops Advanced

Configure Consul Connect service mesh with Envoy proxy for secure microservices communication

Set up Consul Connect service mesh with Envoy sidecar proxies to enable secure, encrypted service-to-service communication with mutual TLS authentication, traffic policies, and observability for your microservices architecture.

45 min 4 distros 608 views
databases Advanced

Configure ZooKeeper for ClickHouse replication with multi-node cluster setup

Set up a production-ready ZooKeeper ensemble to enable ClickHouse replication across multiple nodes. This tutorial covers ZooKeeper cluster configuration, ClickHouse integration, security hardening, and failover testing.

45 min 4 distros 534 views

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