[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Z] backups, battery power bastion hosts, configuring batch scripts benefits of use, DNS BIND AD-integrated zones interoperability with Microsoft DNS Server name servers obtaining ports of 2nd versions of WINS records and Boolean options, nslookup boundaries nonoctets octets |