Unix Server Tech Knowledge Base - unix:freebsd:system_builds:airgap

Building an Air Gap Server

Anonymous (anonymous@undisclosed.example.com) — 2026-01-20T07:14:34+00:00

Building an Air Gap Server Purpose: Secure long-term backup storage isolated from network threats Key Requirements: Full disk encryption, physical security, validated data transfer Target Environment: FreeBSD with ZFS and GELI encryption Status: Powered off when not actively receiving updates

Air Gap Server: Concepts and Best Practices

Anonymous (anonymous@undisclosed.example.com) — 2026-01-20T07:36:41+00:00

Air Gap Server: Concepts and Best Practices Purpose: Secure long-term backup storage isolated from network threats Key Requirements: Full disk encryption, physical security, validated data transfer Target Environment: FreeBSD with ZFS and GELI encryption

Sneakernet: Production Air Gap Implementation

Anonymous (anonymous@undisclosed.example.com) — 2026-02-06T06:37:26+00:00

Sneakernet: Production Air Gap Implementation Project: Automated ZFS replication via encrypted removable media Environment: FreeBSD with ZFS and GELI encryption Repository: License: BSD 2-Clause (FreeBSD License) Overview The sneakernet project provides a complete automated solution for air gap server replication using ZFS datasets and encrypted transport media. This implementation was developed for a production environment requiring monthly o…

Air Gap Server

Anonymous (anonymous@undisclosed.example.com) — 2026-01-20T07:37:45+00:00

Air Gap Server An air gap server is a computer system physically isolated from unsecured networks, including the Internet, to protect critical data from remote cyberattacks. This isolation—combined with full disk encryption and strict physical access controls—provides defense-in-depth against ransomware, unauthorized access, and compromised source systems. The system typically remains powered off except during scheduled backup operations, with data transferred via encrypted removable media (…