User manual

Contents
xiii
D Domain Name System 149
Basic DNS 149
Enabling the DNS server feature 150
Configuring a primary DNS server 150
Specifying a reverse lookup (PTR) record 151
Specifying a mail server (MX) record 152
Specifying an alias (CNAME) record 152
Configuring a secondary DNS server 153
Advanced DNS 154
Network Mask Notation Conversion 154
Delegating a subdomain 155
Delegating a subnet 156
Configuring server settings 156
Start of Authority (SOA) configuration 157
Name server (NS) 158
Domain administrator email address 158
Refresh interval 158
Retry interval 158
Expire interval 158
Time-to-live period (TTL) 158
Quick Start Guide for Domain Name Service (DNS) 159
Brief history of the Domain Name System (DNS) 164
What is a DNS record? 165
Who manages your DNS records? 165
How does DNS work? 165
E Licenses 167
F Glossary 173
G Index 183