On 18/02/2020 12:00, Nicolas Kovacs wrote: Hi Nicolas, > I'm using NetworkManager TUI (nmtui) to configure my connections. I'm > defining two profiles WAN (enp1s0) and LAN (enp2s0). With NetworkManager > I have to configure gateway and DNS information on a per-interface basis. > > 1. Which interface should have the gateway information ? The WAN interface. > 2. In a similar manner, which interface should have the DNS server > information ? Neither. The DNS configuration should not normally be bound to a specific interface, so don't configure it with any interface. If you do, and that interface goes down, your DNS config also disappears. Regards, Anand