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.

security Intermediate

Install and configure Keycloak for enterprise authentication with clustering

Set up Keycloak as an enterprise identity provider with PostgreSQL backend, SSL encryption, and high availability clustering for OAuth2, OpenID Connect, and SAML authentication across your organization.

45 min 6 distros 1,539 views
monitoring Intermediate

Install and configure Zabbix 7 with PostgreSQL and advanced monitoring templates

Set up Zabbix 7 monitoring server with PostgreSQL backend, SSL-enabled web interface, auto-discovery, and advanced monitoring templates for comprehensive infrastructure monitoring.

45 min 6 distros 2,961 views
devops Intermediate

Install and configure GitLab CE with CI/CD runners and backup automation

Set up a complete self-hosted GitLab CE instance with SSL encryption, Docker-based CI/CD runners, automated backup system, and security hardening for production workloads.

45 min 6 distros 1,785 views
security Intermediate

Install and configure Fail2ban with advanced rules and email alerts

Set up Fail2ban intrusion prevention system with custom SSH, web server, and application protection rules. Configure email notifications and advanced filtering to automatically block malicious IP addresses based on log patterns.

45 min 6 distros 1,952 views
databases Intermediate

Install and configure PostgreSQL 17 with performance tuning and security hardening

Learn to install PostgreSQL 17 from official repositories, optimize performance with proper memory settings, and implement security best practices including SSL encryption and authentication hardening.

45 min 6 distros 2,004 views

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