unbound 1.7.3 - enable EDNS Client Subnet Module
https://nlnetlabs.nl/documentation/unbound/unbound.conf/
The ECS module must be configured in the module-config: "subnetcache validator iterator" directive and be compiled into the daemon to be enabled.
The current build config is missing --enable-subnet
however and thus with module-config: 'subnetcache validator iterator'
set in the unbound configuration unbound-checkconf
is producing:
fatal error: module conf 'subnetcache validator iterator' is not known to work