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L2F (Layer 2 Forwarding), 126, 515
L2TP (Layer 2 Tunneling Protocol), 126, 515–516
LAN framing, 110
LANs (Local Area Networks)
connecting via router to WANs, 110
connecting via VPN, 117
defined, 516
latency, 338, 515
laws, international privacy and security, 485–486
Layer 2 Forwarding (L2F), 126, 515
Layer 2 Tunneling Protocol (L2TP), 126, 515–516
LCP (Link Control Protocol), 124, 516
LDAP (Lightweight Directory Access Protocols), 243, 516
leaf CA, 339
Level 0 backup, 516
Lightweight Directory Access Protocols (LDAP), 243, 516
limited distribution of public information, 287–288, 516
Link Control Protocol (LCP), 124, 516
Linux
file systems for, 229
as open source program, 227
OS/NOS hardening, 226–227
local registration authority (LRA), 333–334, 334, 335, 516
locking down a desktop, 121
logging
as passive response to intrusion, 180
system logs, 463–464, 516
logic bombs, 84–85, 84, 516
logon
spoofing attacks during, 56–57, 56
username/password authentication at, 13, 13
LRAs (local registration authorities), 333–334, 334, 335, 516
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