[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] objects Olicom Inc online marketing 2nd 3rd online sales 2nd Open Shortest Path First (OSPF) Open Systems Interconnection Reference Model [See OSI model] operating systems Linux peer-to-peer networks NOS (network operating system) org domain name Osborne 1 computers OSI model (Open Systems Interconnection Reference Model) advantages of 2nd encapsulation 2nd layers Application 2nd Data Link 2nd Network 2nd Physical 2nd Presentation 2nd Session 2nd Transport 2nd 3rd overview 2nd 3rd 4th 5th 6th 7th peer communication OSI models mapping to OSPF (Open Shortest Path First) Outlook client 2nd 3rd outside attacks denial-of-service attacks eavesdropping IP address spoofing man-in-the-middle attacks password attacks protecting against 2nd |