Red Hat ENTERPRISE LINUX 5 - DEPLOYMENT Deployment Manual page 7

15.5. Establishing an xDSL Connection .................................................................... 175
15.6. Establishing a Token Ring Connection ............................................................. 181
15.7. Establishing a Wireless Connection ................................................................. 183
15.8. Managing DNS Settings .................................................................................. 186
15.9. Managing Hosts .............................................................................................. 187
15.10. Working with Profiles .................................................................................... 189
15.11. Device Aliases .............................................................................................. 192
15.12. Saving and Restoring the Network Configuration ............................................. 194
16. Controlling Access to Services
16.1. Runlevels ....................................................................................................... 196
16.2. TCP Wrappers ................................................................................................ 196
16.2.1. xinetd ............................................................................................... 196
16.3. Services Configuration Tool ......................................................................... 197
16.4. ntsysv ........................................................................................................... 199
16.5. chkconfig .................................................................................................... 201
16.6. Additional Resources ...................................................................................... 201
16.6.1. Installed Documentation ....................................................................... 201
16.6.2. Useful Websites ................................................................................... 201
17. Berkeley Internet Name Domain (BIND)
17.1. Introduction to DNS ........................................................................................ 203
17.1.1. Nameserver Zones ............................................................................... 203
17.1.2. Nameserver Types ............................................................................... 204
17.1.3. BIND as a Nameserver ........................................................................ 204
17.2. /etc/named.conf ........................................................................................ 205
17.2.1. Common Statement Types ................................................................... 205
17.2.2. Other Statement Types ........................................................................ 210
17.2.3. Comment Tags .................................................................................... 211
17.3. Zone Files ...................................................................................................... 212
17.3.1. Zone File Directives ............................................................................. 212
17.3.2. Zone File Resource Records ................................................................ 213
17.3.3. Example Zone File ............................................................................... 216
17.3.4. Reverse Name Resolution Zone Files ................................................... 217
17.4. Using rndc .................................................................................................... 218
17.4.1. Configuring /etc/named.conf ........................................................... 218
17.4.2. Configuring /etc/rndc.conf ............................................................. 219
17.4.3. Command Line Options ........................................................................ 220
17.5. Advanced Features of BIND ............................................................................ 220
17.5.1. DNS Protocol Enhancements ................................................................ 221
17.5.2. Multiple Views ...................................................................................... 221
17.5.3. Security ............................................................................................... 221
17.5.4. IP version 6 ......................................................................................... 222
17.6. Common Mistakes to Avoid ............................................................................. 222
17.7. Additional Resources ...................................................................................... 223
17.7.1. Installed Documentation ....................................................................... 223
17.7.2. Useful Websites ................................................................................... 224
17.7.3. Related Books ..................................................................................... 224
18. OpenSSH
18.1. Features of SSH ............................................................................................. 225
18.1.1. Why Use SSH? ................................................................................... 225
18.2. SSH Protocol Versions .................................................................................... 226
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