authoritative; option domain-name "sitestar.net"; option domain-name-servers 150.161.x.y,150.161.q.z; option time-offset -18000; #EST default-lease-time 21600; min-lease-time 21600; max-lease-time 21600; ddns-update-style none; How does the DNS information in the parameter option domain-name-servers. The machine switches between dns informed?