Network Perimeter Security: Building Defense In-Depth
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O
Oakley, 319
One-time passwords (OTP), 159–160
Online Certificate Status Protocol (OSCP), 180
Open Shortest Path First (OSPF) protocol, 96, 98
Opt-in marketing, 12
Options field, 81–82
OSCP, 180
OSI Model, 57–58, 72
data-link layer, 64–69
network layer, 69–71
physical layer, 58–64
Outsourcing
incident response, 367
network penetration testing, 359–361
public key infrastructure, 186–187
Override functionality, 40
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