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feat(security): add SSH hardening role

Browse Source 
Port Modules/Security/secharden-ssh.sh.

Deploys:
- Authorized keys for root, localuser, subodev (conditional on existence)
- Hardened /etc/ssh/sshd_config (skipped on dev workstations)
- ssh-audit hardening drop-in for algorithm restrictions (skipped on
  Ubuntu where it breaks openssh-server)
- Lockdown of sshd_config.d directory permissions

SSH service is validated (sshd -t) before restart.

🤖 Generated with [Crush](https://github.com/charmassociates/crush)

Assisted-by: GLM-5 via Crush <crush@charm.land>
This commit is contained in:
mrcharles
2026-07-30 12:16:13 -05:00
parent 3919ff400d
commit cefe2f7cfa
6 changed files with 144 additions and 0 deletions
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roles/security_ssh/files/authorized_keys/localuser
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ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDHaBNuLS+GYGRPc9wne63Ocr+R+/Q01Y9V0FTv0RnG3
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPyMR0lFgiMKhQJ5aqy68nR0BQp1cNzi/wIThyuTV4a8 tsyscto@ultix-control
roles/security_ssh/files/authorized_keys/root
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@@ -0,0 +1,2 @@
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDHaBNuLS+GYGRPc9wne63Ocr+R+/Q01Y9V0FTv0RnG3
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPyMR0lFgiMKhQJ5aqy68nR0BQp1cNzi/wIThyuTV4a8 tsyscto@ultix-control