====== PFSense - Network - Automatic Hostnames ======
Navigate to **Services -> DNS Resolver -> General Settings**.
In **General DNS Resolver Options**:
* DHCP Registration - Register DHCP leases in the DNS Resolver: **Checked**.
**NOTE:** This will cause the Resolver to reload and flush its resolution cache whenever a DHCP lease is issued.
* This could put a high load on the DNS server, which should be fine for small setups.
* Static DHCP - Register DHCP static mappings: **Checked**.
**NOTE:** This is to ensure that statically mapped DHCP clients are registered.
* This will not break pfBlockerNG - Unbound Python Mode.