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


Preface	xix
1. Getting Started With NIS+	1
...NIS+ Overview	1
...Setting Up NIS+	2
...Before You Start NIS+	3
...Planning Your NIS+ Layout	3
......Determining Server Requirements	4
......Disk Space and Memory Recommendations	4
...Preparing the Existing Namespace	5
...Configuration Worksheets	7
2. NIS+ Setup Scripts--Introduction	13
...About the NIS+ Scripts	13
...What the NIS+ Scripts Will Do	14
...What the NIS+ Scripts Won't Do	14
3. Setting Up NIS+ With Scripts	17


...NIS + Setup Overview	19
...Creating a Sample NIS+ Namespace	20
......Summary of NIS+ Scripts Command Lines	22
...Setting Up NIS+ Root Servers	24
......Prerequisites to Running `nisserver`	25
..........Information You Need	25
......· How to Create a Root Master Server	25
......· How to Change Incorrect Information	28
...Populating NIS+ Tables	30
......Prerequisites to Running `nispopulate`	30
..........Information You Need	32
......· How to Populate the Root Master Server Tables	32
...Setting Up Root Domain NIS+ Client Machines	39
......Prerequisites to Running `nisclient`	39
..........Information You Need	40
......· How to Initialize a New Client Machine	40
......Creating Additional Client Machines	42
...Initializing NIS+ Client Users	42
......Prerequisites to Running `nisclient`	42
..........Information You Need	43
......· How to Initialize an NIS+ User	43
...Setting Up NIS+ Servers	44
......Prerequisites to Running `rpc.nisd`	44
..........Information You Need	45


......Configuring a Client as an NIS+ Server	45
..........· How to Configure a Server Without NIS
............Compatibility	45
..........· How to Configure a Server *With* NIS Compatibility	45
..........· How to Configure a Server With DNS and NIS
............Compatibility	45
......Creating Additional Servers	46
...Designating Root Replicas	46
......Prerequisites to Running `nisserver`	46
..........Information You Need	47
......· How to Create a Root Replica	47
......Creating Additional Replicas	49
...Creating a Subdomain	49
......Prerequisites to Running `nisserver`	49
..........Information You Need	50
......· How to Create a New NonRoot Domain	50
......Creating Additional Domains	52
...Populating the New Domain's Tables	52
......Prerequisites to Running `nispopulate`	53
..........Information You Need	54
......Populating the Master Server Tables	55
..........· How to Populate the Tables From Files	56
..........· How to Populate the Tables From NIS Maps	56
...Designating Replicas	56
......Prerequisites to Running `nisserver`	57


..........Information You Need	57
......· How to Create a Replica	58
...Initializing Subdomain NIS+ Client Machines	58
......Prerequisites to Running `nisclient`	59
..........Information You Need	59
......· How to Initialize a New Subdomain Client Machine	60
...Initializing Subdomain NIS+ Client Users	60
......Prerequisites to Running `nisclient`	60
..........Information You Need	61
......· How to Initialize an NIS+ Subdomain User	61
...Summary of Commands for the Sample NIS+ Namespace	62
4. Setting Up the Root Domain	67
...Standard versus NIS-Compatible Setup Procedures	68
...Establishing the Root Domain	68
......Summary of Steps	68
......· How to Set Up a Root Domain	70
...Root Domain Setup Summary	87
5. Setting Up NIS+ Clients	89
...Client Setup	90
......· How to Set Up an NIS+ Client	92
...Changing a Workstation's Domain	96
......Specifying a Domain Name After Installation	97
......· How to Change a Client's Domain Name	97
...Initializing an NIS+ Client	98


......Broadcast Initialization	99
..........Security Considerations	99
..........Prerequisites	99
..........Information You Need	99
..........· How to Initialize a Client--Broadcast Method	99
......Host-Name Initialization	100
..........Security Considerations	100
..........Prerequisites	100
..........Information You Need	100
..........· How to Initialize a Client--Host-name Method .	100
......Cold-Start File Initialization	101
..........Security Considerations	101
..........Prerequisites	101
..........Information You Need	101
..........· How to Initialize a Client--Cold-Start Method	102
...NIS+ Client Setup Summary	103
6. Setting Up NIS+ Servers	105
...Setting Up an NIS+ Server	105
...... Standard versus NIS-Compatible Setup Procedures	106
......· How to Set Up an NIS+ Server	107
...Adding a Replica to an Existing Domain	109
......· How to Add a Replica Server	110
...Server Setup Summary	112
7. Setting Up a Nonroot Domain	113


...Setting Up a Nonroot Domain	113
...... Standard versus NIS-Compatible Setup Procedures	114
......· How to Set Up a Nonroot Domain	116
...Subdomain Setup Summary	122
8. Setting Up NIS+ Tables	123
...Populating Tables--Options	124
...Populating NIS+ Tables From Files	125
......Security Considerations	125
......Prerequisites	126
......Information You Need	126
......· How to Populate NIS+ Tables From Files	127
...Populating NIS+ Tables From NIS Maps	131
......Security Considerations	132
......Prerequisites	132
......Information You Need	132
......· How to Populate Tables From Maps	133
...Transferring Information From NIS+ to NIS	136
......Security Considerations	137
......Prerequisites	137
......· How to Transfer Information From NIS+ to NIS	137
...Limiting Access to the Passwd Column to Owners and
......Administrators	137
..........Security Considerations	138
..........Prerequisites	138


..........Information You Need	138
......· How to Limit Read Access to the Passwd Column	138
...Table Population Summaries	140
9. Setting Up the Name Service Switch	143
... Selecting an Alternate Configuration File	143
......· How to Select an Alternate Configuration File	144
...Enabling an NIS+ Client to Use DNS	145
......· How to Enable an NIS+ Client to Use DNS	145
...Adding Compatibility With +/- Syntax	146
......· How to Add DNS Compatibility With +/- Syntax	147
10. Introduction to DNS	151
...DNS Basics	152
......Name-to-Address Resolution	152
......DNS Administrative Domains	154
......`in.named` and DNS Name Servers	155
......DNS Clients and the Resolver	156
...Introducing the DNS Namespace	156
......DNS Namespace Hierarchy	156
......DNS Hierarchy in a Local Domain	157
......DNS Hierarchy and the Internet	158
.......... Joining the Internet	160
..........Domain Names	160
...Administering DNS	162
......Zone s	162


......Reverse Mapping	163
..........The `in.addr.arpa` Domain	163
......Master Servers	164
..........Primary Name Server	164
..........Secondary Name Server	164
......Root Domain Name Server	165
......Caching and Caching-Only Servers	165
...How DNS Affects Mail Delivery	165
11. Setting Up DNS Clients	167
...Creating the resolv.conf File	167
......Format of `/etc/resolv.conf`	168
...Modifying the /etc/nsswitch.conf File	168
12. Setting Up DNS Servers	169
...Introduction to Boot and Data Files	170
......The `named.boot` File	170
......The `named.ca` File	171
......The `hosts` File	171
......The `hosts.rev` File	171
......The `named.local` File	171
...Setting Up the Boot File	172
..........The `directory` Line	172
..........The cache Line	173
..........The primary Lines	173
...Setting Up the Data Files	175


......Standard Resource Record Format	175
..........The *name* Field	176
..........The *ttl* Field	176
..........The *class* Field	176
..........The *record-type* Field	177
..........The *record-specific-data* Field	177
..........Special Resource Record Characters	177
..........Control Entries	178
......Resource Record Types	179
......Setting Up the `named.ca` File	180
......Setting Up the `hosts` File	180
..........SOA-- Start of Authority	182
..........NS--Name Server	184
..........A--Address	184
..........HINFO--Host Information	185
..........WKS--Well-Known Services	186
..........CNAME--Canonical Name	186
..........PTR--Pointer Record	187
..........MX--Mail Exchanger	188
......Setting Up the `hosts.rev` File	189
......Setting Up the `named.local` File	189
...Modifying the Data Files	190
...A Practical Example	191
...Setting Up a Root Server for a Local Network	198


Index	201