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
10,973

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

linux
8,426

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

monitoring
6,882

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

hosting
6,059

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

databases
5,535

Recently published

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

linux
2 minutes ago

Check disk space usage on Linux with df and du commands

linux
2 days ago

Find and kill processes using a specific port on Linux

linux
6 days ago

Fix PostgreSQL FATAL sorry, too many clients already

linux
2 weeks ago

Configure Istio multi-cluster disaster recovery and automated failover

devops
2 weeks ago
"database" × Clear all
monitoring Intermediate

Configure ScyllaDB cluster monitoring with Prometheus and Grafana dashboards

Set up comprehensive monitoring for ScyllaDB clusters using Prometheus metrics collection and Grafana visualization dashboards. Configure alerting rules for performance monitoring and health checks.

45 min 4 distros 1,176 views
devops Advanced

Integrate ArgoCD with External Secrets Operator for secure Kubernetes secret management

Set up External Secrets Operator to sync secrets from HashiCorp Vault and AWS Secrets Manager into your ArgoCD GitOps workflow, enabling secure automated secret management across multiple environments without storing sensitive data in Git repositories.

45 min 4 distros 1,583 views
networking Advanced

Configure advanced iptables QoS with fwmark and multiple interfaces

Set up traffic shaping with iptables packet marking, HTB queueing discipline, and multi-interface QoS policies for bandwidth management and network performance optimization.

45 min 4 distros 1,426 views
monitoring Advanced

Setup Jaeger sampling strategies for high-volume production tracing

Configure advanced Jaeger sampling strategies to efficiently capture traces in high-traffic production environments while controlling storage costs and maintaining observability.

45 min 4 distros 1,214 views
monitoring Intermediate

Setup Node.js error tracking with Sentry for production monitoring and debugging

Configure Sentry error tracking for Node.js applications with PM2 process management, automated error reporting, and production-ready alerting to catch and debug issues before they affect users.

25 min 4 distros 1,087 views
monitoring Intermediate

Implement Node.js application monitoring with Prometheus metrics and Grafana dashboards

Set up comprehensive Node.js application monitoring using Prometheus metrics collection with the prom-client library and create custom Grafana dashboards for performance insights and alerting.

45 min 4 distros 1,151 views
networking Advanced

Implement OSPF multi-area design with FRRouting and advanced routing policies

Deploy multi-area OSPF networks with FRRouting, configure area types and LSA filtering, implement advanced routing policies with route maps, and integrate BGP redistribution for enterprise network design.

45 min 4 distros 1,271 views
security Intermediate

Implement Docker network security with custom bridge networks and container isolation

Secure your Docker deployments by creating isolated custom bridge networks, implementing container segmentation, and configuring network access controls to prevent unauthorized communication between containers.

25 min 4 distros 1,118 views
security Advanced

Implement Istio security scanning and vulnerability management for Kubernetes service mesh

Set up comprehensive security scanning and vulnerability management for Istio service mesh using Trivy, Falco, and security policies to protect Kubernetes workloads from threats and compliance violations.

45 min 4 distros 983 views
security Advanced

Set up Kubernetes container image security scanning with Trivy and admission controllers

Implement automated security scanning for Kubernetes container images using Trivy scanner and admission controllers to block vulnerable images before deployment.

45 min 4 distros 1,201 views
performance Intermediate

Configure Cherokee caching and compression for improved performance

Set up Cherokee web server with advanced caching modules and gzip compression to dramatically improve page load times and reduce bandwidth usage for high-traffic websites.

25 min 4 distros 1,062 views
databases Intermediate

Implement MariaDB backup encryption with Mariabackup and automated restoration

Set up encrypted MariaDB backups using Mariabackup with AES encryption, automated scheduling, and verified restoration procedures for secure database protection.

45 min 4 distros 998 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 11:03 · reachable in a message, no ticket form

+31 10 477 5362 WhatsApp