- interfaces.exclude in steward.yaml (names or shell patterns) leaves
interfaces out of GET /interfaces, the web UI's picker and
'steward interface list'. Subnets on them are still served.
- With the ping check on, active leases are pinged every minute; a
client that answers gets a last-seen time (leases.last_seen,
migration 4). Not answering never takes a client offline.
- The activity log filters by subnet (--subnet, the Activity page,
GET /events?subnet=).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
