Home Network & IoT
DHCP lease table auditing
Review DHCP leases to find unknown devices and sticky squatters.
Authorized testing only. Practice on systems you own, isolated labs, or targets with written permission. Unauthorized access is illegal.
When
Weekly home hygiene or after guests leave.
How
Export lease list; compare to known inventory; reserve/static known devices; block unknowns.
Why
Routers already track who joined — use that data.
Commands & usage
# Router UI: LAN → DHCP clients / leases
cat /var/lib/misc/dnsmasq.leases # common on OpenWrt/Pi-hole
cat /var/lib/dhcp/dhcpd.leases
Commands are educational examples. Adapt hosts, paths, and rates to your authorized scope.
Tags
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