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RADIUS (Remote Authentication Dial-In User Service), 38
RCn algorithms, 18
RCPT TO command, SMTP, 144
real-time collaboration (RTC), 333
receipts, 169
records, audit log, 347
registry keys, 88
rekeying
Certificate Services and, 241
KMS and, 251
overview of, 234–35
Relay Restrictions dialog box, SMTP, 149–50
relaying. See also SMTP (Simple Mail Transfer Protocol) relaying
dangers of, 141–42
defining, 140–41
necessity of, 141
Remote Authentication Dial-In User Service (RADIUS), 38
Rendezvous Protocol (RVP), 333, 334, 345
renewal process, certificates, 234–35, 242
reports
content filters and, 166
patches and, 84
Requires TLS Encryption check box, SMTP Authentication dialog box, 147
resource control, 5–7
Resource Reservation Protocol (RSVP), 207
restore process, CAs, 254
Restricted Sites zone, 253–64
restrictions, IM, 335–36, 340–41
resultant set of policies (RSoP), 103
revocation
Certificate Services and, 242
KMS and, 251
overview of, 253
understanding, 238–40
RFCs, IPsec
additional reading, 40
Instant Messaging, 346
S/MIME version 3, 264–65
SMTP, 160
Rijndael cipher, 19
risk assessment, 59–72
additional reading, 71
antivirus protection, 186–87
overview of, 59–60
physical/operational security, 74–75
STAVE model of, 65–67
STRIDE model of, 67–71
types of threats, 60–64
RISKS digest, 71
Rivest, Ron, 18
Rivest-Shamir-Adelman (RSA) algorithm, 25–26, 29
roles, Exchange permissions, 52–54
root CAs, 228–31
RPCs
blocking or allowing, 305
encrypting between Outlook/Exchange Server, 280
ISA server and, 215–18
locking to one port, 309
opening firewall ports for, 308
turning off DSAccess, 308
RSA (Rivest-Shamir-Adelman) algorithm
DSS standard and, 29
overview of, 25–26
RSoP (resultant set of policies), 103
RSVP (Resource Reservation Protocol), 207
RTC (real-time collaboration), 333
Rule Action dialog box, New Web Publishing Rule Wizard, 317–18
rules
IPsec, 205–6, 210–15
ISA, 216–17
Web publishing, 317–18
RVP (Rendezvous Protocol), 333, 334, 345
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