nix-config/nixos/viridian/services/ssh/borgbase_hosts
jasmine 85dc419349
refactor(ssh): decentralize SSH configuration to per-host services
Restructures SSH trust relationships from global to host-specific configuration
for better locality of concern and principle of least privilege.

Changes:
- Collapse nixos/common/global/ssh/ back to ssh.nix (single-file module)
- Move internal host trust (fuchsia/viridian) to per-host services/ssh/
- Split BorgBase known hosts by repository (li9kg944 for fuchsia, r7ag7x1w for viridian)
- Add viridian SSH server config to accept backup connections from fuchsia
- Add fuchsia borgbackup passphrase for offsite backups
- Configure viridian to create /srv/borg-repo/fuchsia for remote backups

This enables the 3-2-1 backup strategy with fuchsia backing up to both viridian
(onsite) and BorgBase (offsite) with proper SSH authentication.
2025-10-07 22:33:20 +08:00

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r7ag7x1w.repo.borgbase.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMS3185JdDy7ffnr0nLWqVy8FaAQeVh1QYUSiNpW5ESq
r7ag7x1w.repo.borgbase.com ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwHsO5g7kAEpqcK4bpHCUKYV1cKCUNwVEVsDQyfj7N8L92E21n+aEhIX2Nh/kFs1W9D/pgsWQBAbco9e/ORuagHrO8hUQtbda5Z31PAo4eipwP17VQr5rF3seaJJNFV72v89PGwMOWQwvoJte+yngC6PYGKJ+w63SRtflihAmf4xa5Tci/f6jbX6t32m2F3bnephVzQO6anGXvGPR8QYQXzSu/27+LaKnLd2Kugb1Ytbo0+6kioa60HWejIZ/mCrCHXYpi0jAllaYEuAsTqFWf/OFUHrKWwRAJD0TV43O1++vLlxY85oQxIgc4oUbm93dXmDBssrTnqqq2jqonteUr
r7ag7x1w.repo.borgbase.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOstKfBbwVOYQh3J7X4nzd6/VYgLfaucP9z5n4cpSzcZAOKGh6jH8e1mhQ4YupthlsdPKyFFZ3pKo4mTaRRuiJo=