[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] U.S. government (.GOV) U.S. military (.MIL) UDP ( User Datagram Protocol) unauthorized access remote users unicast method NLB clusters unicast NLB clustering unicast traffic unicast transmissions uninterruptible power supplies unique DNS namespaces unique IP addresses Unix BIND 2nd Update (Windows) update intervals custom IPSec policies updates Automatic Updates dynamic 2nd 3rd 4th DHCP DNS clients secure 2nd security 2nd installing 2nd maintenance MBSA 2nd SUS 2nd 3rd 4th UPSs (uninterruptible power supplies) User Datagram Protocol. [See UDP] User Signature Only template User template users authenticated permissions passwords permissions principle of least privilege privileges, auditing smart card education 2nd |