DNS and the Active Directory Mark Anthony Simos Support Professional Domains Directory Services Micr

1
DNS and the Active Directory Mark Anthony
SimosSupport Professional Domains / Directory
ServicesMicrosoft Corporation
2
Why Dynamic DNS?

• Best of WINS / DNS (Domain Name System)
• Updateable, standard, secure
• Who needs what kind of resolution

3
Concepts of DNS Tree

• Hierarchy, forwarders, delegation
• Microsoft Active Directory integrated versus
  primary/secondary

4
Types of Records

• Forwarders / delegation
• Host (A) records
• Service (SRV) records
• LDAP, GC, DC
• Start of authority (SOA) records

5
DNS and the Active Directory

• Name registration and resolution
• Domain controller
• Global catalog
• Domain member
• Where do I host the database?

6
Root and Two Child Domains
SAMPLE.microsoft.com
CHILDA.SAMPLE.microsoft.com
CHILDB.SAMPLE.microsoft.com
7
Common Pitfalls

• All DNS pointed to self (islands)
• VPNs and DNS hosted on domain controller
• Changing IPs
• Disjointed namespace

8
Best Practices

• Separate internal namespace
• External databases (ISP) in forwarders
• DNS resolvers and server
• One entry to one database
• Entries to database replicas

9
(No Transcript)
10
(No Transcript)