When connected to a classical network with a DCHP, the Cube system uses the default DNS resolvers delivered by the DHCP server.
In some cases, the delivered DNS resolvers correspond to public IP, but restricted to some clients (in fact, clients with IP corresponding to the ISP owning the router). If the Cube uses a VPN, all DNS queries are made with the public IP delivered by the VPN (and not the private IP delivered by the DHCP server). Consequently, any DNS queries fail with this setup.
We should force LDN, FDN, etc. public DNS resolvers in resolv.conf and we should prevent the DHCP client to change it.
jvaubourg
commented
8 years ago
When connected to a classical network with a DCHP, the Cube system uses the default DNS resolvers delivered by the DHCP server.
In some cases, the delivered DNS resolvers correspond to public IP, but restricted to some clients (in fact, clients with IP corresponding to the ISP owning the router). If the Cube uses a VPN, all DNS queries are made with the public IP delivered by the VPN (and not the private IP delivered by the DHCP server). Consequently, any DNS queries fail with this setup.
We should force LDN, FDN, etc. public DNS resolvers in resolv.conf and we should prevent the DHCP client to change it.