Bind 9.20.6 for RHEL/Centos/Fedora

A source rpm for Bind 9.20.6 is available here. This contains the original source code from isc.org without any of the backported patches in the official RHEL version. It can be built via:

EL8:
rpmbuild --rebuild --define 'dist .el8' \
bind-9.20.6-0.1.el8.src.rpm

The EL8 builds require the libuv package from the epel repository and the libuv-devel package from the powertools repository.

If you are building on a machine with IPv6 disabled, you might need to add "--define 'test 0'" to those rpmbuild commands. The recent ISC bind tests seem to require at least a loopback IPv6 interface.