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.

devops Advanced

Configure Istio security policies with mutual TLS and authorization for Kubernetes service mesh

Configure mutual TLS authentication and authorization policies in Istio service mesh for secure microservices communication. This tutorial covers PeerAuthentication, AuthorizationPolicy, and RBAC configuration for production Kubernetes environments.

45 min 4 distros 301 views
networking Advanced

Set up Open vSwitch 3.3 for advanced virtual machine networking with VLAN and bridge configuration

Configure Open vSwitch 3.3 to create isolated virtual networks for VMs with VLAN tagging, bridge management, and advanced traffic control. Essential for virtualization environments requiring network segmentation and high-performance VM networking.

45 min 4 distros 304 views
monitoring Intermediate

Monitor Kubernetes clusters with Prometheus and Grafana for container orchestration insights

Set up comprehensive Kubernetes monitoring using the Prometheus Operator and Grafana with persistent storage, RBAC, ServiceMonitors, and custom dashboards for complete cluster observability.

45 min 4 distros 354 views
networking Advanced

Set up nftables IPv6 NAT and dual-stack networking with firewall rules and traffic forwarding

Configure nftables with IPv6 NAT masquerading, dual-stack IPv4/IPv6 forwarding, and comprehensive firewall rules for secure network routing and traffic management on modern Linux systems.

45 min 4 distros 687 views
devops Advanced

Setup Apache Airflow cluster with Kubernetes Executor for auto-scaling workflows

Deploy production-grade Apache Airflow with Kubernetes Executor for dynamic workflow scaling. Configure PostgreSQL backend, RBAC authentication, and auto-scaling policies with Prometheus monitoring integration.

45 min 4 distros 345 views
devops Advanced

Set up Istio multi-cluster service mesh with cross-cluster communication

Deploy and configure Istio across multiple Kubernetes clusters with secure cross-cluster communication, shared service discovery, and unified traffic management for distributed microservices architecture.

45 min 4 distros 374 views
devops Advanced

Configure Kubernetes network policies with Calico CNI for microsegmentation and security enforcement

Learn to implement advanced network security in Kubernetes using Calico CNI. Configure namespace-based microsegmentation, application-level policies, and comprehensive monitoring for enterprise-grade cluster protection.

45 min 4 distros 409 views
security Advanced

Configure advanced iptables rules for bridge network security and container isolation

Implement comprehensive bridge network security using advanced iptables rules to isolate containers, control traffic flow, and prevent lateral movement in virtualized environments.

45 min 4 distros 632 views
security Advanced

Implement Istio security policies with authorization and authentication for Kubernetes service mesh

Configure Istio service mesh security with mTLS authentication, JWT validation, and RBAC authorization policies. This tutorial covers implementing comprehensive security controls for microservices communication in production Kubernetes environments.

45 min 4 distros 508 views
devops Advanced

Integrate Nexus Repository with Kubernetes and Docker registry authentication

Set up Nexus Repository Manager as a private Docker registry integrated with Kubernetes clusters, configure secure authentication and authorization, and enable automated container image deployment with RBAC controls.

45 min 4 distros 690 views
devops Advanced

Implement Kubernetes network policies with Calico CNI and OPA Gatekeeper for security enforcement

Secure your Kubernetes cluster with Calico CNI network policies and OPA Gatekeeper admission control. This tutorial shows you how to implement pod isolation, policy enforcement, and admission validation for production-grade security.

45 min 4 distros 469 views
networking Intermediate

Configure nftables NAT and port forwarding for home lab environments

Learn how to configure nftables for NAT and port forwarding in home lab environments. This tutorial covers basic NAT masquerading, port forwarding rules, and advanced networking scenarios for virtual machines and containers.

25 min 4 distros 948 views

Need help?

Don't want to manage this yourself?

We handle infrastructure for businesses that depend on uptime. From initial setup to ongoing operations.

Talk to an engineer