Information Technology Reference
In-Depth Information
records are created in the _msdcs.<domainname> zone. The _kerberos record has a protocol
of _tcp and a port number of 88, as shown in Figure 3-20.
FIGURE 3-20
The Properties dialog box for the _kerberos SRV record
The _ldap record is similar to the _kerberos record, except that it uses a port of 389. You
usually should not modify these records, but it might be necessary to re-create them in the
case of recovery from an unplanned event. Alternately, you might want to adjust the weight
and priority of individual servers providing the service to manage load.
Other services that can use SRV records typically create their own records in DNS as part
of their installation process, but you might have to manually create them as well. One other
Microsoft service that uses SRV records is Microsoft Exchange, which uses SRV records to
allow Outlook and other clients to autodiscover the Exchange server.
You can create an SRV record with the DNS Manager console or by using the
Add-DnsServerResourceRecord cmdlet. To create an SRV record with the DNS Manager
console, follow these steps:
Open the DNS Manager console.
1.
Expand the server you on which you want to create the record and then expand
Forward Lookup Zones.
2.
Right-click the DNS domain name in which you want to create the record and select
Other New Records.
3.
4.
Select Service Locator (SRV) from the list on the Resource Record Type dialog box, as
shown in Figure 3-21, and click Create Record.
