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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47 guides

Linux

System administration, shell scripting, package management

66 guides

Hosting & Servers

Web servers, reverse proxies, SSL, domains

147 guides

Security

Firewalls, hardening, encryption, access control

45 guides

Performance

Caching, optimization, profiling, load testing

99 guides

Databases

MySQL, PostgreSQL, Redis, backups, replication

62 guides

Networking

DNS, load balancing, VPN, TCP/IP, routing

160 guides

DevOps

CI/CD, Docker, Kubernetes, automation

174 guides

Monitoring

Logging, alerting, metrics, observability

Most viewed

Install and configure Deno for web development with systemd and reverse proxy

hosting

10,623

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

monitoring

6,476

Fix apt update E: Repository no longer has a Release file

linux

5,970

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

hosting

5,562

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases

5,081

Recently published

Set up automated MariaDB Galera cluster backups with compression

databases

1 week ago

Configure MariaDB ColumnStore for high-performance analytics workloads

databases

1 week ago

Implement Kibana 8 custom threat hunting dashboards for security incident response

monitoring

2 weeks ago

Configure Logstash 8 security pipelines with threat intelligence enrichment

monitoring

3 weeks ago

Configure Ansible Vault integration with HashiCorp Vault for secrets management

devops

3 weeks ago

"time-synchronization" × Clear all

monitoring Intermediate

Monitor system time drift with Prometheus and Grafana alerts

Set up comprehensive time synchronization monitoring with Prometheus node exporter metrics, Grafana dashboards, and automated alerting to prevent system clock drift issues in production environments.

45 min 4 distros 1,175 views

networking Intermediate

Configure NTP server with chrony and security hardening for precise time synchronization

Set up a production-grade NTP server using chrony with client access controls, firewall rules, and security hardening. Learn to configure upstream time sources, implement monitoring, and troubleshoot common synchronization issues.

35 min 4 distros 2,381 views

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