1. Windows Server 2003 DNS 新增功能
林寶森

2. 2003 DNS 的新增功能 Stub Zone Conditional Forwarding Local Subnet Priority
Round-robin Rotation
Disabling Recursion
Store DNS Data in Application Partition of Active Directory

3. Fully Qualified Domain Name
FQDN = Host Name + Domain Name
Example:
www is Host Name
abc.com.tw is Domain Name

4. What is a DNS Zone?
abc.com.tw
west
south
support
sales
training
north

5. What Are DNS Zone Types? Zones Description
Primary
Read/write copy of a DNS database
Secondary
Read-only copy of a DNS database
Stub
Copy of a zone containing limited records
Read/Write
Read-Only
Copy of
limited
records

6. Multiple Domain 的名稱解析 Windows 2000 Server Windows Server 2003
公司自行成立 DNS Root Server，所有的 DNS Server皆修改 Root Hints 指向公司的 Root Server。
DNS Server 互相做對方的 Secondary
DNS Server 互相 Forwarding
Windows Server 2003
Stub Zone
Conditional Forwarding

7. Server Default Preferences
Property
Default setting
Disable recursion
Off
BIND secondaries On
Fail on load if bad zone data
Enable round robin
Enable netmask ordering
Secure cache against pollution
Name checking
Multibyte (UTF8)
Load zone data on startup
From Active Directory and registry
Enable automatic scavenging

8. DNS Server Roles Role Situation Caching-only servers
A remote office has a limited amount of available bandwidth
Non-recursive servers
You have Internet-facing DNS that are authoritative for one or more zones
Forward-only servers
You want to manage the DNS traffic between your network and the Internet
Conditional forwarders
You want DNS clients in separate networks to resolve each others’ names without having to query the DNS server on the Internet

9. Using Caching-Only Servers
Perform name resolution on behalf of client computers and cache the results
Can be used to reduce DNS-related traffic across a WAN
Caching-Only DNS Server
Client
Remote Office
DNS Server
Corporate Headquarters
Slow WAN Link

10. NSLOOKUP 指令 set OPTION - set an option
[no]recurse - ask for recursive answer to query
domain=NAME - set default domain name to NAME
type=X - set query type (ex. A, ANY, CNAME, MX, NS)
querytype=X - same as type
[no]msxfr - use MS fast zone transfer
ixfrver=X - current version to use in IXFR transfer request
server NAME - set default server to NAME
ls [opt] DOMAIN - list addresses in DOMAIN
-a - list canonical names and aliases
-d - list all records
-t TYPE - list records of the given type (e.g. A, CNAME, MX, etc.)

11. 用 NSLOOKUP 解決下列問題 使用者抱怨有些網站無法連結 廠商或客戶連不上公司網站 廠商或客戶的電子郵件收不到
廠商或客戶的電子郵件寄不過去
強迫別人的 DNS 學習的方式