Network Fundamentals
Cross-platform network fundamentals for self-hosting. Understand IP addresses, DNS, SSH, firewalls, and reverse proxies—independent of the operating system.
Netzwerk-Grundlagen
IP Addresses and Ports: The Foundation of Self-Hosting
Categories: Fundamentals Networking Self-Hosting
Understanding IPv4/IPv6 addressing, port concepts, subnetting, and practical networking fundamentals for containers and self-hosting services.
DNS and Domains: Name Resolution and Local Servers
Categories: Fundamentals Network DNS Self-Hosting
Understand the DNS hierarchy, resolver configuration, local DNS servers, and alternative DNS strategies for privacy-conscious network infrastructures.
SSH Keys: Secure Connections Without Passwords
Categories: Fundamentals Network SSH Security
SSH key cryptography, SSH agent, key management, and secure authentication for server access without password transmission.
SSH for Multiple Servers: Efficient Management
Categories: Fundamentals Networking SSH Server Management
SSH configuration management, ProxyJump, bastion hosts, and efficient administration of larger server infrastructures without manual command-line parameters.
Firewall Principles: Understanding Packet Filtering and Connection Tracking
Categories: Fundamentals Network Firewall Security
Understand packet filtering, connection tracking, and different firewall philosophies. Netfilter vs. pf, Docker integration, and filtering concepts.
Reverse Proxy: Fundamentals of Service Consolidation
Categories: Fundamentals Network Reverse Proxy SSL
SSL termination, domain-based routing, and backend communication. Reverse proxy concepts for service consolidation and secure self-hosting architectures.