Daniel Gröber via Unbound-usersandGeorge Thessalonikefs
c1e5e6781e
Networks which only have tunneled IPv6 access but still want to go IPv6-only internally can use unbound's DNS64 module together with the dns64-synthall or dns64-ignore-aaaa options to direct most traffic (any dualstack domain) to their NAT64. There is only one problem with this setup, currently domains with only AAAA records will fail to resolve. To allow for this use-case arrange for the A sub-query to make the AAAA super query advance along the module stack when no records are returned. Signed-off-by: Daniel Gröber <dxld@darkboxed.org>
Unbound
Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. If you have any feedback, we would love to hear from you. Don’t hesitate to create an issue on Github or post a message on the Unbound mailing list. You can learn more about Unbound by reading our documentation.
Compiling
Make sure you have the C toolchain, OpenSSL and its include files, and libexpat installed. Unbound can be compiled and installed using:
./configure && make && make install
You can use libevent if you want. libevent is useful when using many (10000) outgoing ports. By default max 256 ports are opened at the same time and the builtin alternative is equally capable and a little faster.
Use the --with-libevent=dir configure option to compile Unbound with libevent
support.
Unbound configuration
All of Unbound's configuration options are described in the man pages, which will be installed and are available on the Unbound documentation page.
An example configuration file is located in doc/example.conf.