why should we have 2 nameserver?
why should we have more than 1 nameserver if we only have 1 physical server?it is suggested that one name server will be on the same physical server and the second name server on other physical server.. but in case i only have one server, so.. even i have second nameserver on other physical server (provider's server) if the main server is down.. nobody can access my domain name.. so what for i have second nameserver on other physical server?