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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48 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

161 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

10,879

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

linux

7,089

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

monitoring

6,757

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

hosting

5,905

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

databases

5,357

Recently published

Fix PostgreSQL FATAL sorry, too many clients already

linux

4 days ago

Configure Istio multi-cluster disaster recovery and automated failover

devops

1 week ago

Set up automated MariaDB Galera cluster backups with compression

databases

3 weeks ago

Configure MariaDB ColumnStore for high-performance analytics workloads

databases

3 weeks ago

Implement Kibana 8 custom threat hunting dashboards for security incident response

monitoring

4 weeks ago

"certificate-authentication" × Clear all

security Intermediate

Configure LDAP authentication for centralized user management with OpenLDAP and SSSD

Set up centralized user authentication using OpenLDAP server with SSSD client integration. Configure PAM and NSS for seamless login across multiple Linux systems with directory-based user management.

45 min 4 distros 1,507 views

security Beginner

Configure SSH key authentication and disable password login for secure server access

Set up SSH public key authentication on Linux servers and disable password-based logins to prevent brute force attacks and improve security. This tutorial covers key generation, server configuration, and troubleshooting common authentication issues.

20 min 6 distros 3,464 views

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