unbound-host 1.9.4-2ubuntu1 (arm64 binary) in ubuntu focal

 This package provides the 'unbound-host' program that is bundled with the
 Unbound domain name server. This version differs from the one provided in the
 package called host, which is from NIKHEF, and bind9-host, which is from ISC,
 and has a similar but different set of features and options.