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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Linux
System administration, shell scripting, package management
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Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
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Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
CI/CD, Docker, Kubernetes, automation
Monitoring
Logging, alerting, metrics, observability
Most viewed
Install and configure Deno for web development with systemd and reverse proxy
hostingInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securityConfigure GitLab backup automation with GPG encryption
Set up automated GitLab backups with GPG encryption, remote storage, and systemd timers. This tutorial covers backup script creation, encryption setup, and monitoring for production GitLab instances.
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.
Implement Consul backup and disaster recovery with automated snapshots and restoration
Set up automated Consul snapshots with GPG encryption, systemd timers, and complete disaster recovery procedures. Includes monitoring integration with Prometheus and automated restoration workflows for production environments.
Set up automated MySQL database backups with compression and rotation
Configure automated MySQL database backups with compression, encryption, and rotation using systemd timers. Includes monitoring and alerting for backup failures.
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.
Configure Redis backup encryption with GPG for secure automated backups
Set up encrypted Redis backups using GPG keys with automated scheduling through systemd timers. This tutorial covers GPG key management, backup script creation, and secure restoration procedures for production Redis environments.
Implement encryption for Consul backups using GPG with automated snapshots and secure storage
Learn to create encrypted Consul backups using GPG encryption with automated snapshot scripts, secure key management, and remote storage integration for production disaster recovery.
Setup remote backup storage with S3-compatible encryption and automated retention policies
Configure secure, encrypted backup storage using S3-compatible providers with automated retention policies, client-side GPG encryption, and monitoring scripts for reliable data protection.
Set up MySQL backup encryption and remote storage with rsync
Create automated MySQL backups with GPG encryption and secure remote storage using rsync and SSH keys. This tutorial covers database dumping, compression, encryption, and automated synchronization to remote servers.
Configure GitLab SAML authentication with Keycloak for enterprise SSO
Set up single sign-on (SSO) authentication between GitLab and Keycloak using SAML 2.0 protocol. This enables centralized user management and secure authentication for your GitLab instance through your existing identity provider infrastructure.
Configure backup encryption with GPG and rsync for secure automated backups
Set up automated encrypted backups using GPG 2.4 and rsync with systemd timers. This tutorial covers GPG key management, encrypted backup scripts, and restoration procedures for production environments.
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