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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46 guides

Linux

System administration, shell scripting, package management

56 guides

Hosting & Servers

Web servers, reverse proxies, SSL, domains

121 guides

Security

Firewalls, hardening, encryption, access control

40 guides

Performance

Caching, optimization, profiling, load testing

82 guides

Databases

MySQL, PostgreSQL, Redis, backups, replication

55 guides

Networking

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

139 guides

DevOps

CI/CD, Docker, Kubernetes, automation

136 guides

Monitoring

Logging, alerting, metrics, observability

Most viewed

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

hosting

2,054

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

hosting

1,622

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

hosting

1,458

Install and configure Ollama for local AI models on Linux servers

devops

1,263

Configure Linux system time synchronization with chrony and NTP hardening

linux

1,170

Recently published

Configure Kubernetes network policies for enhanced cluster security

security

1 hour ago

Set up Kubernetes persistent volume snapshots and backup automation

devops

6 hours ago

Implement Kafka Streams exactly-once processing semantics with Java applications

devops

11 hours ago

Implement ClickHouse backup automation with compression and S3 integration

databases

20 hours ago

Install and configure Filebeat 8.15 for efficient log shipping to ELK stack

monitoring

1 day ago

"mandatory-access-controls" × Clear all

security Intermediate

Configure Nagios Core 4.5 SSL certificates and security hardening with authentication controls

Secure your Nagios monitoring with SSL certificates, advanced authentication, and comprehensive access controls. This guide covers Let's Encrypt integration, web interface hardening, and security monitoring setup.

45 min 4 distros 70 views

security Beginner

Configure Linux file permissions and access control with umask and chmod best practices

Learn how to configure secure Linux file permissions using chmod, set default permissions with umask, and implement proper access control to prevent security vulnerabilities while fixing permission denied errors.

25 min 6 distros 620 views

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