Bind 9 Administrator Reference Manual

Table of Contents
1. Introduction............................................................................................................................................9
1.1. Scope of Document.....................................................................................................................9
1.2. Organization of This Document..................................................................................................9
1.3. Conventions Used in This Document..........................................................................................9
1.4. The Domain Name System (DNS)............................................................................................10
1.4.1. DNS Fundamentals.......................................................................................................10
1.4.2. Domains and Domain Names.......................................................................................10
1.4.3. Zones ............................................................................................................................11
1.4.4. Authoritative Name Servers .........................................................................................11
1.4.4.1. The Primary Master .........................................................................................12
1.4.4.2. Slave Servers....................................................................................................12
1.4.4.3. Stealth Servers .................................................................................................12
1.4.5. Caching Name Servers .................................................................................................12
1.4.5.1. Forwarding.......................................................................................................13
1.4.6. Name Servers in Multiple Roles...................................................................................13
2. BIND Resource Requirements............................................................................................................15
2.1. Hardware requirements.............................................................................................................15
2.2. CPU Requirements....................................................................................................................15
2.3. Memory Requirements..............................................................................................................15
2.4. Nameserver Intensive Environment Issues ...............................................................................15
2.5. Supported Operating Systems...................................................................................................16
3. Nameserver Configuration..................................................................................................................17
3.1. Sample Configurations..............................................................................................................17
3.1.1. A Caching-only Nameserver ........................................................................................17
3.1.2. An Authoritative-only Nameserver ..............................................................................17
3.2. Load Balancing .........................................................................................................................18
3.3. Notify ........................................................................................................................................19
3.4. Nameserver Operations.............................................................................................................19
3.4.1. Tools for Use With the Nameserver Daemon...............................................................19
3.4.1.1. Diagnostic Tools ..............................................................................................19
3.4.1.2. Administrative Tools........................................................................................20
3.4.2. Signals ..........................................................................................................................24
4. Advanced Concepts .............................................................................................................................25
4.1. Dynamic Update .......................................................................................................................25
4.1.1. The journal file .............................................................................................................25
4.2. Incremental Zone Transfers (IXFR)..........................................................................................25
4.3. Split DNS ..................................................................................................................................26
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