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.

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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

Check disk space usage on Linux with df and du commands

linux
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Find and kill processes using a specific port on Linux

linux
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Fix PostgreSQL FATAL sorry, too many clients already

linux
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Configure Istio multi-cluster disaster recovery and automated failover

devops
2 weeks ago

Set up automated MariaDB Galera cluster backups with compression

databases
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security Intermediate

Implement Kubernetes network policies for pod-to-pod security and traffic isolation

Set up granular network security in Kubernetes using Calico CNI with default-deny policies and pod-to-pod communication rules for microsegmentation.

45 min 4 distros 1,154 views
security Advanced

Configure audit compliance automation with Ansible for security monitoring and reporting

Build comprehensive security audit compliance automation using Ansible playbooks to enforce security policies, monitor system configurations, and generate compliance reports across your Linux infrastructure fleet.

45 min 4 distros 1,302 views
monitoring Intermediate

Set up Kubernetes monitoring with Prometheus Operator and custom metrics

Deploy a production-grade monitoring stack with Prometheus Operator, configure ServiceMonitor resources for automatic scraping, and create custom alerting rules with Grafana dashboards for comprehensive Kubernetes cluster observability.

45 min 4 distros 1,144 views
monitoring Advanced

Configure advanced Grafana dashboards and alerting with Prometheus integration

Build production-ready Grafana dashboards with dynamic variables, custom panels, and sophisticated alert rules. Integrate Prometheus metrics for comprehensive monitoring with multi-condition alerting and notification channels.

45 min 4 distros 2,370 views
databases Advanced

Configure Redis 7 cluster sharding with SSL/TLS authentication and security hardening

Set up a production-ready Redis 7 cluster with automatic sharding, SSL/TLS encryption, authentication, and comprehensive security hardening for high availability and data protection.

45 min 4 distros 1,246 views
linux Intermediate

Implement backup rotation policies with automated cleanup using systemd timers and shell scripts

Set up automated backup rotation with systemd timers to manage storage space, implement retention policies for different backup types, and create monitoring alerts for backup health and cleanup processes.

45 min 4 distros 1,332 views
security Intermediate

Configure Kubernetes network policies for enhanced cluster security

Implement granular network security controls in Kubernetes using Calico CNI. Learn to create ingress and egress policies, namespace isolation, and label-based microsegmentation for production clusters.

35 min 4 distros 1,082 views
devops Advanced

Set up Kubernetes persistent volume snapshots and backup automation

Configure CSI snapshot controllers, create persistent volume snapshots, and implement automated backup strategies with Velero for production Kubernetes environments.

45 min 4 distros 1,124 views
databases Intermediate

Implement ClickHouse backup automation with compression and S3 integration

Set up automated ClickHouse backups with compression, S3 storage, and systemd timers. Includes monitoring, encryption, and recovery procedures for production environments.

45 min 4 distros 1,043 views
monitoring Intermediate

Set up Alertmanager with email and Slack notifications for monitoring alerts

Configure Prometheus Alertmanager with email SMTP and Slack webhook integrations for comprehensive monitoring notifications. Set up alert routing rules and test notification delivery.

25 min 4 distros 1,112 views
devops Intermediate

Set up automated backup and disaster recovery for Nexus Repository Manager 3 with blob store migration

Configure comprehensive backup automation for Nexus Repository Manager 3 including blob store migration, disaster recovery procedures, and automated scheduling with systemd timers for production environments.

45 min 4 distros 1,074 views
devops Intermediate

Implement Django continuous deployment with Git hooks and automated testing

Set up automated Django deployment with Git hooks, testing pipelines, and production rollbacks. Configure continuous integration with database migrations, static file management, and zero-downtime deployments.

45 min 4 distros 1,045 views

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