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
10,962

Fix apt update E: Repository no longer has a Release file

linux
8,107

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

monitoring
6,869

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

hosting
6,037

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

databases
5,510

Recently published

Check disk space usage on Linux with df and du commands

linux
5 minutes ago

Find and kill processes using a specific port on Linux

linux
4 days ago

Fix PostgreSQL FATAL sorry, too many clients already

linux
1 week ago

Configure Istio multi-cluster disaster recovery and automated failover

devops
2 weeks ago

Set up automated MariaDB Galera cluster backups with compression

databases
1 month ago
"firewall" × Clear all
linux Intermediate

Configure centralized logging with rsyslog and logrotate for system monitoring and log management

Set up a centralized logging system using rsyslog server to collect logs from multiple clients, implement TLS encryption for secure transmission, and configure logrotate for automated log rotation and management.

45 min 4 distros 1,500 views
networking Advanced

Implement WireGuard multi-site mesh networking with automatic routing and failover

Deploy a scalable WireGuard mesh network across multiple sites with automatic routing, failover mechanisms, and centralized management for high-availability site-to-site connectivity.

45 min 4 distros 1,454 views
monitoring Intermediate

Monitor nginx performance with Prometheus and Grafana using nginx-prometheus-exporter

Set up comprehensive nginx monitoring with Prometheus and Grafana dashboards. Configure nginx stub_status, deploy nginx-prometheus-exporter, and create production-ready alerts for web server performance metrics.

25 min 4 distros 1,431 views
security Advanced

Integrate WireGuard VPN server with LDAP authentication for enterprise user management

Configure WireGuard VPN server to authenticate users against LDAP directory services like Active Directory. Automate client certificate management and implement centralized user access control for enterprise environments.

45 min 4 distros 1,328 views
databases Advanced

Configure Elasticsearch 8 cross-cluster replication for disaster recovery

Set up cross-cluster replication between Elasticsearch 8 clusters to ensure data resilience and business continuity. This advanced configuration creates automatic data synchronization across geographically distributed clusters for disaster recovery scenarios.

45 min 4 distros 1,222 views
devops Intermediate

Set up GitLab container registry mirror and proxy cache for improved performance

Configure GitLab's built-in container registry as a mirror and proxy cache to reduce Docker Hub rate limits, speed up image pulls, and improve CI/CD pipeline performance across your organization.

45 min 4 distros 1,385 views
devops Advanced

Set up Consul multi-datacenter replication with ACL token replication

Configure Consul WAN federation across multiple datacenters with secure ACL token replication. Enable automatic token synchronization, gossip encryption, and cross-datacenter service discovery for distributed infrastructure.

45 min 4 distros 1,158 views
devops Advanced

Integrate AWX 24.6 with HashiCorp Vault for dynamic secrets management and secure automation workflows

Configure AWX to securely retrieve database credentials and API keys from HashiCorp Vault using dynamic secrets that automatically rotate. Set up credential types, database engines, and secure playbook execution with centralized secrets management.

45 min 4 distros 1,385 views
security Intermediate

Configure Zabbix 7 with SSL certificates and database encryption

Secure your Zabbix 7 monitoring infrastructure with SSL certificates for the web interface, encrypted database connections, and TLS-protected agent communication. Essential for production monitoring environments.

45 min 4 distros 1,855 views
monitoring Intermediate

Set up Zabbix proxy for distributed network monitoring

Configure Zabbix proxy servers to distribute monitoring load across multiple network segments, reduce server load, and monitor remote locations through secure proxy connections.

45 min 4 distros 1,912 views
security Advanced

Implement Envoy proxy JWT authentication with OAuth2 integration

Configure Envoy proxy with JWT authentication filters integrated with Keycloak OAuth2 provider for secure microservices communication and advanced rate limiting policies.

45 min 4 distros 1,328 views
security Advanced

Implement Podman pod security with network policies and microsegmentation

Secure Podman pods with custom network policies, traffic filtering, and microsegmentation using CNI plugins and netavark. Implement zero-trust networking with firewall rules and container isolation.

45 min 4 distros 1,295 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

At their desk in Rotterdam 11:06 · reachable in a message, no ticket form

+31 10 477 5362 WhatsApp