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.

Browse by topic

Most viewed

Install and configure Deno for web development with systemd and reverse proxy

hosting
9,893

Install and configure Uptime Kuma for website monitoring with SSL and email alerts

monitoring
5,570

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting
4,601

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases
4,005

Install and configure Ollama for local AI models on Linux servers

devops
3,989

Recently published

Configure PostgreSQL 17 SSL encryption and certificate-based authentication

databases
5 days ago

Set up HAProxy SSL termination with Let's Encrypt certificates

networking
1 week ago

Configure HAProxy with Consul for dynamic service discovery

networking
1 week ago

Configure PostgreSQL 17 connection pooling with PgBouncer for high availability

databases
2 weeks ago

Configure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault

devops
2 weeks ago
"selinux" × Clear all
security Intermediate

Configure Linux user and group management with sudo access control

Learn to create and manage Linux users and groups with proper sudo access control, security hardening, and monitoring. This comprehensive guide covers account creation, group membership management, sudo configuration, and security best practices for production environments.

45 min 4 distros 831 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 1,364 views
security Beginner

Configure SSH key authentication and disable password login for secure server access

Set up SSH public key authentication on Linux servers and disable password-based logins to prevent brute force attacks and improve security. This tutorial covers key generation, server configuration, and troubleshooting common authentication issues.

20 min 6 distros 2,086 views
databases Intermediate

Install and configure ScyllaDB cluster with replication and performance tuning

Set up a production-ready ScyllaDB cluster with multi-node configuration, automatic replication, and performance optimization. ScyllaDB provides 10x better performance than Cassandra with drop-in compatibility.

45 min 6 distros 1,295 views
security Intermediate

Configure AppArmor security profiles for web servers and databases with custom policy enforcement

Set up mandatory access control for Nginx, Apache, MySQL, and PostgreSQL using AppArmor security profiles. Learn to create custom policies, debug profile violations, and implement advanced enforcement for production web servers and databases.

45 min 6 distros 1,590 views
monitoring Advanced

Set up Zabbix 7 high availability cluster with PostgreSQL replication and automated failover

Build a production-grade Zabbix 7 high availability cluster with PostgreSQL streaming replication, HAProxy load balancing, and automated failover capabilities for enterprise monitoring.

90 min 4 distros 1,513 views
security Intermediate

Secure Podman containers with SELinux and AppArmor mandatory access controls

Implement mandatory access controls for Podman containers using SELinux on Red Hat-based systems and AppArmor on Debian-based systems. Learn to configure security policies, monitor violations, and harden container security with production-grade controls.

45 min 4 distros 1,823 views
devops Intermediate

Install and configure Podman for rootless containers on Linux

Learn to install Podman and configure rootless containers as a secure Docker alternative. Includes Docker Compose migration, systemd integration, and troubleshooting common permission issues.

25 min 6 distros 1,962 views

Don't want to manage this yourself?

We handle infrastructure for businesses that depend on uptime. Fully managed, with one fixed contact who knows your setup.

You get one fixed contact who knows your setup

Rotterdam 19:35 · reachable in a message, no ticket form

+31 10 477 5362 WhatsApp