Red Hat ENTERPRISE LINUX 3 Reference Manual page 5

14.1. The File Transport Protocol ............................................................................. 213
14.2. FTP Servers...................................................................................................... 214
14.3. Files Installed with
14.4. Starting and Stopping
14.5.
14.6. Additional Resources ....................................................................................... 224
III. Security Reference.................................................................................................................... 227
15. Pluggable Authentication Modules (PAM)..................................................................... 229
15.1. Advantages of PAM ......................................................................................... 229
15.2. PAM Configuration Files ................................................................................. 229
15.3. PAM Configuration File Format ...................................................................... 229
15.4. Sample PAM Configuration Files .................................................................... 232
15.5. Creating PAM Modules ................................................................................... 234
15.6. PAM and Administrative Credential Caching.................................................. 234
15.7. PAM and Device Ownership............................................................................ 235
15.8. Additional Resources ....................................................................................... 236
16. TCP Wrappers and
16.1. TCP Wrappers.................................................................................................. 239
16.2. TCP Wrappers Configuration Files.................................................................. 240
16.3.
16.4.
16.5. Additional Resources ....................................................................................... 251
17.
iptables
17.1. Packet Filtering ................................................................................................ 253
17.2. Differences between
17.3. Options Used within
17.4. Saving
17.5.
17.6.
17.7. Additional Resources ....................................................................................... 263
18. Kerberos .......................................................................................................................... 265
18.1. What is Kerberos?............................................................................................ 265
18.2. Kerberos Terminology ..................................................................................... 266
18.3. How Kerberos Works ....................................................................................... 268
18.4. Kerberos and PAM........................................................................................... 269
18.5. Configuring a Kerberos 5 Server ..................................................................... 269
18.6. Configuring a Kerberos 5 Client ...................................................................... 271
18.7. Additional Resources ....................................................................................... 272
19. SSH Protocol................................................................................................................... 275
19.1. Features of SSH ............................................................................................... 275
19.2. SSH Protocol Versions..................................................................................... 276
19.3. Event Sequence of an SSH Connection ........................................................... 276
19.4. OpenSSH Configuration Files ......................................................................... 278
19.5. More Than a Secure Shell................................................................................ 279
19.6. Requiring SSH for Remote Connections ......................................................... 280
19.7. Additional Resources ....................................................................................... 281
IV. Appendixes ................................................................................................................................ 283
A. General Parameters and Modules .................................................................................... 285
A.1. Specifying Module Parameters ......................................................................... 285
A.2. SCSI parameters................................................................................................ 285
A.3. Ethernet Parameters .......................................................................................... 286
Index................................................................................................................................................. 291
Colophon.......................................................................................................................................... 305
Configuration Options........................................................................ 216
vsftpd
............................................................................................ 239
xinetd
............................................................................................................. 246
xinetd
Configuration Files............................................................................. 247
xinetd
....................................................................................................................... 253
Rules .................................................................................. 261
iptables
Control Scripts............................................................................... 261
iptables
and IPv6....................................................................................... 263
ip6tables
............................................................................. 214
vsftpd
......................................................................... 215
vsftpd
and
iptables ipchains
Commands................................................... 255
iptables
............................................. 254