L

LAN (local area network), 73–74, 84–86

LAPB (Link Access Procedure, Balanced), 89

last successful logon, displaying, 47

last username to log on, displaying, 47

lattice-based access controls, 65, BC15

laws. See Legal, Regulations, Compliance, and Investigations domain

Layer 1, OSI model, 76–81

Layer 2 Forwarding Protocol (L2F), 106, BC15

Layer 2, OSI model, 81–92

Layer 2 Tunneling Protocol (L2TP), 106, BC15

Layer 3, OSI model, 92–94

Layer 4, OSI model, 94–97

Layer 5, OSI model, 97–98

Layer 6, OSI model, 98

Layer 7, OSI model, 98–100

layering (defense in depth), 125, 170–171, BC9

LDAP (Lightweight Directory Access Protocol), 59, BC15

leased lines, 86–87

least privilege, 170, 249, BC15

legal liability of safeguard, 145

Legal, Regulations, Compliance, and Investigations domain

business attacks, 310

computer crime, 307–309

computer crime laws, 316–323

definition, 24

ethics, 333–334

financial attacks, 310

“fun” attacks, 311–312

grudge attacks, 310–311

information security laws, 316–323

intellectual property, 312–314

international law, 307

investigations, 323–332

military attacks, 310

prep test questions about, 336–338

privacy laws, 314–316

resources for, 334–335

terrorist attacks, 309

U.S. common law, 304–306

liability, 305

liability of safeguard, 145

life safety controls, 351–355

lightning, 342

Lightweight Directory Access Protocol (LDAP), 59, BC15

limited access mode, 231

Link Access Procedure, Balanced (LAPB), 89

link encryption, 195–196, BC15

Link (Network Access) Layer, TCP/IP model, 100

local area network (LAN), 73–74, 84–86

locks, 347

log. See audit trail

logic bomb, 176, 311, BC15

logical access controls, for biometrics, 48

logical controls. See technical controls

Logical Link Control (LLC) sublayer, OSI model, 82

logon banner, contents of, 47

loss of physical and infrastructure s upport, 254

L2F (Layer 2 Forwarding Protocol), 106, BC15

L2TP (Layer 2 Tunneling Protocol), 106, BC15