Peter Lin-被動投資紀錄

SRV records are used in these and many other scenarios:

• When a domain controller needs to replicate changes from its partners
• When a client computer needs to authenticate to AD DS
• When a user changes his or her password
• When an Microsoft Exchange server performs a directory lookup
• When an administrator opens Active Directory Users and Computers

An SRV record follows the syntax shown below:

An example of an SRV record is shown below:

The components of the record are:

• The protocol service name, such as the LDAP service offered by a domain controller.
• The time-to-live value, in seconds
• The class (all records in a Windows DNS server will be IN or INternet)
• The type: SRV
• The priority and weight, which help clients determine which host should be preferred.
• The port on which the service is offered by the server. Port 389 is the standard port for LDAP on a Windows DC.
• The target, or host of the service, which in this case is the domain controller named hqdc01.contoso.com