Sim, existe uma maneira simples de fazer isso. Adicionar linha a /etc/dhcp/dhclient.conf
, exemplo abaixo, adiciona o servidor DNS 1.2.3.4 à lista de resolvedores.
prepend domain-name-servers 1.2.3.4 ;
The prepend statement
prepend [ option declaration ] ;
If for some set of options the client should use a value you supply, and then use the values supplied by the server, if any, these values can be defined in the prepend statement. The prepend statement can only be used for options which allow more than one value to be given. This restriction is not enforced - if you ignore it, the behaviour will be unpredictable.
Veja a página do manual a página do manual do dhclient