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
5,374

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

hosting
2,065

Install and configure Ollama for local AI models on Linux servers

devops
1,970

Install and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications

hosting
1,849

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

monitoring
1,687

Recently published

Configure NTP monitoring with Grafana dashboards and Prometheus alerting

monitoring
7 hours ago

Configure Cherokee caching and compression for improved performance

performance
12 hours ago

Configure advanced Jaeger sampling strategies for high-traffic environments

monitoring
17 hours ago

Configure Jaeger distributed tracing on Kubernetes cluster with Helm charts and Elasticsearch backend

monitoring
22 hours ago

Configure Spark on Kubernetes with cluster autoscaling for dynamic workloads

devops
1 day ago
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hosting Advanced

Configure Apache HTTP Server clustering with mod_cluster and JBoss EAP for enterprise load balancing

Set up Apache HTTP Server with mod_cluster module to create an intelligent load balancing cluster with JBoss EAP application servers, featuring automatic node discovery, session clustering, and health monitoring.

45 min 6 distros 340 views
linux Beginner

Fix SSH sign_and_send_pubkey: signing failed: agent refused operation

Resolve SSH authentication errors when the SSH agent refuses to sign public keys. This tutorial covers checking agent status, fixing key permissions, restarting the agent, and troubleshooting SSH client configuration.

20 min 6 distros 640 views
security Advanced

Set up Grafana Enterprise SSO authentication with LDAP, SAML, and OAuth2 integration

Configure Grafana Enterprise with comprehensive single sign-on authentication supporting LDAP, SAML, and OAuth2 providers. Set up role-based access control with automated team mapping and user provisioning for enterprise environments.

45 min 4 distros 360 views
security Advanced

Configure Keycloak OAuth2 integration with OpenResty for enterprise SSO

Set up enterprise single sign-on by integrating Keycloak OAuth2 authentication with OpenResty using lua-resty-openidc. Configure secure authentication flows, JWT token validation, and session management for production web applications.

45 min 4 distros 319 views
linux Intermediate

Configure Linux user session limits with systemd and pam_limits for resource management

Learn to set up comprehensive user session resource limits using both traditional pam_limits.conf and modern systemd user slices. This tutorial covers memory, CPU, and process limits to prevent resource exhaustion on multi-user systems.

25 min 4 distros 249 views
monitoring Advanced

Install and configure Graylog 5 for centralized log management with MongoDB and Elasticsearch

Set up Graylog 5 with MongoDB 8.0 and Elasticsearch 8 for centralized log collection, analysis, and alerting. Learn to configure secure inputs, data streams, and monitoring for production environments.

45 min 4 distros 327 views
databases Intermediate

Implement Redis backup automation with compression and encryption

Set up automated Redis backups with compression and GPG encryption for production environments. Create systemd timers for scheduled backups and implement secure remote storage for Redis data protection.

25 min 4 distros 283 views
security Intermediate

Configure SSH port forwarding and tunneling for secure connections

Learn to configure SSH port forwarding, remote tunnels, and SOCKS proxy for secure network connections. Set up local, remote, and dynamic port forwarding with automated monitoring and security hardening.

35 min 4 distros 255 views
databases Advanced

Implement ScyllaDB disaster recovery with cross-region replication

Set up ScyllaDB multi-region cluster with automated backup strategies, cross-datacenter replication, and failover automation for enterprise-grade disaster recovery and business continuity.

180 min 4 distros 305 views
security Advanced

Configure OpenVPN LDAP authentication for enterprise users with Active Directory integration

Set up OpenVPN server with LDAP authentication against Active Directory, enabling centralized user management and group-based access control for enterprise VPN deployments.

45 min 4 distros 333 views
monitoring Advanced

Configure advanced Grafana dashboards and alerting with Prometheus integration

Learn to build production-grade Grafana dashboards with advanced templating, custom Prometheus queries, sophisticated alerting rules, and automated provisioning for scalable monitoring infrastructure.

45 min 4 distros 470 views
devops Advanced

Configure SonarQube high availability clustering with PostgreSQL and load balancing

Set up enterprise-grade SonarQube clustering with PostgreSQL database replication, multiple application nodes, and HAProxy load balancing for zero-downtime code quality analysis across distributed teams.

90 min 4 distros 358 views

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