............................Contents


Preface	xix
*Part 1 --Setting Up and Administering TCP/IP Networks*
1. Overview of Network Administration	1
...Responsibilities of the Network Administrator	1
......Designing the Network	2
......Setting Up the Network	2
......Maintaining the Network	2
......Expanding the Network	3
...What a Network Is	3
......What TCP/IP Is	4
......Types of Hardware That Make Up a Solaris Network	5
......How Network Software Transfers Information	6
......Reaching Beyond the Local Area Network--the Wide
........Area Network	9
2. TCP/IP Protocol Suite	11
...Introducing the Internet Protocol Suite	11


......Protocol Layers and the OSI Model	12
......TCP/IP Protocol Architecture Model	13
...How the TCP/IP Protocols Handle Data Communications	19
......Data Encapsulation and the TCP/IP Protocol Stack	20
3. Planning Your Network	25
...Designing the Network	25
......Factors Involved in Network Planning	26
...Setting Up an IP Addressing Scheme	27
......Parts of the IP Address	27
...... Network Classes	28
......How IP Addresses Apply to Network Interfaces	32
...Naming Entities on Your Network	33
......Administering Host Names	33
......Selecting a Name Service	33
...Registering Your Network	36
......InterNIC and InterNIC Registration Services	36
......How to Contact the InterNIC	37
...Adding Routers	37
......Network Topology	38
......How Routers Transfer Packets	40
4. Configuring TCP/IPon the Network	43
...Before You Configure TCP/IP	44
...Determining Host Configuration Modes	44
......Machines That Should Run in Local Files Mode	45


......Machines That Are Network Clients	46
......Mixed Configurations	47
......Sample Network	47
...TCP/IP Configuration Files	49
......`/etc/hostname.`*interface* File	49
......`/etc/nodename` File	50
......`/etc/defaultdomain` File	50
......`/etc/defaultrouter` File	50
......`hosts` Database	51
......`netmasks` Database	54
...Network Databases and `nsswitch.conf` File	58
......How Name Services Affect Network Databases	59
......`nsswitch.conf` File--Specifying Which Name Service
........ to Use	61
......`bootparams` Database	65
......`ethers` Database	66
......`protocols` Database	68
......`services` Database	69
... Network Configuration Procedures	70
......· How to Configure a Host for Local Files Mode	70
......Setting Up a Network Configuration Server	72
......Configuring Network Clients	73
...Overview of the Booting Processes	75
5. Configuring Routers	77


...Routing Protocols	77
......Routing Information Protocol (RIP)	78
......ICMP Router Discovery (RDISC) Protocol	78
...Configuring Routers	78
......Configuring Both Router Network Interfaces	79
......How a Machine Determines If It Is a Router	80
......Automatic Routing Protocol Selection	81
......Forcing a Machine to Be a Router	81
......Forcing a Machine to Be a Host--the "Firewall"
........Gateway	82
......Turning On Space-Saving Mode	82
......Turning Off ICMP Router Discovery on the Host	83
......Turning Off ICMP Router Discovery on the Router	83
...Configuring Standard TCP/IP Services	83
6. Troubleshooting TCP/IP	85
...General Troubleshooting Methods	85
...Running Software Checks	86
...`ping` Command	86
...`ifconfig` Command	88
...`netstat` Command	89
......Displaying Per Protocol Statistics	90
...... Displaying Network Interface Status	91
......Displaying Routing Table Status	92
...Logging Network Problems	93


...Displaying Packet Contents	93
*Part 2 --Expanding Your Network With PPP*
7. Understanding PPP	97
...Overview	97
......Solaris PPP Specifications	98
......Transmission Facilities Used by PPP	98
......Standards Conformance	98
...PPP Network Interfaces	99
...Extending Your Network With PPP	99
...... Point-to-Point Communications Links	99
......Point-to-Point Configurations Supported by
........Solaris PPP	101
......Multipoint Communications Links	105
......Multipoint Configurations Supported by PPP	105
...Introducing the PPP Software	107
......Link Manager	108
......Login Service	109
......Configuration File	109
......Log File	110
......FIFO File	110
......UUCP Databases	110
...How the Components Work Together	110
......Outbound Connections Scenario	110
......Inbound Connections Scenario	111


8. Preparing Your PPP Configuration	113
...Determining Requirements for Your Configuration Type	114
......Remote Computer-to-Network Configuration	114
......Remote Host-to-Remote Host Configuration	115
......Network-to-Network Configuration	116
......Dial-in Server With Dynamic Point-to-Point Links	117
......Multipoint Dial-in Server	118
......Hosts on a Virtual Network	119
...Determining IP Addressing for Your PPP Link	119
......Specifying IP Addresses	119
......Types of Addressing Schemes	120
...Routing Considerations	122
......Turning off RIP	123
...PPP Hardware Requirements	123
...File Space Requirements	123
......Checklist for Configuring PPP	124
9. Configuring PPP	127
...Overview of the Configuration Process	127
...Installing the PPP Software	128
......Verifying Installation	128
...Sample PPP Configuration	129
...Editing the `/etc/inet/hosts` File	130
......· How to Configure the Remote Machine's `hosts`
........Database	131


......Multipoint Dial-in Server `hosts` Database	131
......· How to Configure the Dial-In Server's `hosts`
........Database	132
...Editing UUCP Databases	132
......Updating `/etc/uucp/Devices` for PPP	133
......Updating `/etc/uucp/Dialers` for PPP	133
......Updating `/etc/uucp/Systems` for PPP	134
...Modifying the `/etc/passwd` File	134
...Editing the `/etc/asppp.cf` Configuration File	135
......Parts of Basic Configuration File	136
......Configuration File for Multipoint Dial-in Server	138
......Editing the Configuration File	141
...Starting Up Your New PPP Link	142
......Manually Starting PPP	142
......· How to Verify that PPP Is Running	142
... Stopping PPP	143
10. Troubleshooting PPP	145
...Checking Hardware	146
...Checking Interface Status	146
...Checking Connectivity	147
...Checking Interface Activity	147
...Checking the Local Routing Tables	147
...Checking Permissions	149
...Checking Packet Flow	149


...Using PPP Diagnostics for Troubleshooting	150
......· How to Set Diagnostics for Your Machine	151
......Analyzing Diagnostic Output	152
11. Tailoring Your PPP Link	161
...Configuring Dynamically Allocated PPP Links	161
......Addressing Issues for Dynamically Allocated Links	163
......Updating the `hosts` Database for Dynamic Links	163
......Considerations for Other Files	164
......Editing `asppp.cf` for Dynamic Link	165
...Configuring a Virtual Network	168
......Addressing Issues for Virtual Networks	169
......Updating `hosts` and `networks` Databases	169
...... Considerations for Other Files	170
......`asppp.cf` Configuration File for a Virtual Network	170
...Configuration Keywords	172
*Part 3 --Administering UUCP Communications*
12. UUCP Databases and Programs	177
...UUCP Hardware Configurations	178
...Software Comprising UUCP	178
......Daemons	178
......Administrative Programs	179
......User Programs	180
...Introducing the UUCP Database Files	181
......Configuring UUCP Files	182


...`/etc/uucp/Systems` File	183
......System-Name Field	183
......Time Field	184
......Type Field	185
......Speed Field	185
......Phone Field	186
......Chat Script Field	187
......Hardware Flow Control	189
......Setting Parity	190
...`/etc/uucp/Devices` File	190
......Type Field	191
......Line Field	192
......Line2 Field	193
......Class Field	193
......Dialer-Token-Pairs Field	194
......Protocol Definitions in the `Devices` File	197
...`/etc/uucp/Dialers` File	198
......Hardware Flow Control	202
......Setting Parity	203
...Other Basic Configuration Files	203
......`/etc/uucp/Dialcodes` File	203
......`/etc/uucp/Sysfiles` File	205
......`/etc/uucp/Sysname` File	206
...`/etc/uucp/Permissions` File	206


......Structuring Entries	207
......Considerations	207
......REQUEST Option	208
......SENDFILES Option	208
......MYNAME Option	209
......READ and WRITE Options	209
......NOREAD and NOWRITE Options	210
......CALLBACK Option	210
......COMMANDS Option	211
......VALIDATE Option	213
......MACHINE Entry for `OTHER`	215
......Combining `MACHINE` and `LOGNAME`	215
......Forwarding	216
...`/etc/uucp/Poll` File	216
...`/etc/uucp/Config` File	216
...`/etc/uucp/Grades` File	217
......User-job-grade Field	217
......System-job-grade Field	217
......Job-size Field	219
......Permit-type Field	219
......ID-list Field	220
...Other UUCP Configuration Files	220
......`/etc/uucp/Devconfig` File	220
......`/etc/uucp/Limits` File	220


......`remote.unknown` File	221
...Administrative Files	221
13. Configuring and Maintaining UUCP	225
...Adding UUCP Logins	225
...Starting UUCP	226
......`uudemon.poll` Shell Script	227
......`uudemon.hour` Shell Script	227
......`uudemon.admin` Shell Script	227
......`uudemon.cleanup` Shell Script	228
...Running UUCP Over TCP/IP	228
......Activating UUCP in `/etc/inetd.conf`	228
......`Tailoring Systems` File Entries for TCP/IP	228
......Checking `/etc/inet/services` for UUCP	229
...Security, Maintenance, and Troubleshooting	229
......Setting Up UUCP Security	230
......Regular UUCP Maintenance	230
......Troubleshooting UUCP	231
...UUCP Error Messages	233
Index	239