Lev Stipakov 613aa6bf7a Win: support for local DNS resolvers ...

Local DNS resolvers, such as Umbrella Roaming Client,
change DNS settings on adapters to 127.0.0.1.

This may not work with openvpn3 because:

 - NRPT rule might be created for "." zone,
which redirects all DNS requests to the server
specified in rule. This takes precendence over adapters'
DNS settings.

 - DNS requests might be blocked on all adapters
except TAP (tap-windows6/wintun/ovpn-dco-win) to prevent
DNS leaks.

To enable compatibility with local DNS resolvers, add
"allowLocalDnsResolvers" core config option, which,
when enabled, makes core to

 - avoid creating NRPT rule for "." zone

 - permit DNS requests to 127.0.0.1 / ::1

Signed-off-by: Lev Stipakov <lev@openvpn.net>

2021-08-10 15:00:58 +03:00

..

ovpncli.cpp

Win: support for local DNS resolvers

2021-08-10 15:00:58 +03:00

ovpncli.hpp

Win: support for local DNS resolvers

2021-08-10 15:00:58 +03:00