Linux homelab (dpl)

Host dpl is a homelab box: never-sleep, auto-login, coding-agent handoff, extra disks.

Disks

Disk	Size	Use
Samsung 860 EVO (/)	1 TB	OS, $HOME configs, dotfiles
Samsung 970 EVO Plus NVMe	2 TB	hot /media/ubuntu/work (~/work): git/<org>, docker/data
WD Volume A	16 TB	~/archive datasets/media
WD Volume B	16 TB	~/backup snapshots of the lab

Git is ~/work/git/{cnb,crashchat,ab-spectrum,bhcoe,dpl,nlb,personal}. Worktrees sit next to the clone (.worktrees/). Docker images/volumes/json-logs: ~/work/docker/data after the sudo root script.

User-space (no sudo)

make linux-homelab

Mounts disks via udisks, inhibits sleep, starts sshd on :2222, clones last-30-day repos onto the NVMe.

Needs sudo once

sudo -E ~/.dotfiles/scripts/linux-homelab-root.sh
sudo tailscale up --ssh --hostname=dpl

That installs sshd :22, docker (data-root on NVMe), tailscale, fstab, and masks suspend. Prefer Tailscale SSH over forwarding :22 to 222.253.112.200.

LAN IP: 192.168.1.193 (set as NetworkManager manual). Reserve it on the router.

GDM already auto-logs in ubuntu; linger is on so herdr-server and moshi-hook come back after reboot.

Remote (SSH, screen, CDP, internet)

User-space, no sudo:

What	Where	How
SSH	:2222 pubkey	ssh -p 2222 ubuntu@192.168.1.193
Screen	GNOME RDP :3389	Microsoft Remote Desktop on the LAN, or 127.0.0.1:13389 via SSH forward
Chrome CDP	127.0.0.1:9222 only	ssh dpl then agent-browser connect 9222 on the Mac
Off-LAN	Tailscale userspace	dpl-remote up (login URL), install Tailscale on Mac/phone

Do not port-forward 3389 or 9222. IPv4 WAN is NAT; IPv6 may already reach :2222 if the ISP leaves inbound open. Details: ~/.config/homelab/REMOTE.md and dpl-remote status.