If you are upgrading from an earlier IPFire version, or performing a fresh installation followed by restoring a backup created before CU203, the following steps are recommended after the upgrade.
1. Regenerate the DHCP configuration
The migration from Unbound to Knot Resolver requires the DHCP configuration to be regenerated.
Go to Network → DHCP Server and click the Save button (no configuration changes are required).
2. Review DHCP fixed leases and hostnames
In CU203, hostnames for DHCP fixed leases are handled differently.
If you want to use a hostname that is different from the one provided by the DHCP client, you now need to define it in the Hosts configuration.
- Go to Network → DHCP Server and create or edit the fixed lease (assign the IP address to the device’s MAC address). The Remark field can still be used for documentation, but it is no longer used as the local DNS hostname.
- Then go to Network → Edit Hosts and add the desired hostname for that IP address.
3. Verify your DNS servers
If you use DoT (DNS over TLS)
Go to Network → Domain Name System and click Check DNS Servers.
If one of the configured DNS servers reports an error, remove it or verify that its FQDN is correct.
Finally
Restart IPFire to ensure that all changes are applied correctly.
Edit : And reconnect your clients !
Regards.
Thanks to the development team for their work on CU203.
The list above summarizes some of the recommendations that have emerged from recent forum discussions.
If I’ve missed anything, please feel free to add other useful advice for users upgrading to CU203.