Use of A records in AD DNS

J

Jim Hatfield

We have a single domain AD with three sites, one DC
in each site. We use AD-integrated DNS.

I've noticed that there are some duplicate A records.

There are three for the domain name itself, mapping to
the addresses of the three DCs. And there are three for
the domain name preceded by gc._msdcs., also mapping to
the DC addresses.

I thought AD used SRV records for locating servers?
 
T

Tomasz Onyszko

Jim said:
We have a single domain AD with three sites, one DC
in each site. We use AD-integrated DNS.

I've noticed that there are some duplicate A records.

There are three for the domain name itself, mapping to
the addresses of the three DCs. And there are three for
the domain name preceded by gc._msdcs., also mapping to
the DC addresses.

I thought AD used SRV records for locating servers?
Click to expand...

Yes, and this is correct but A records are used to handle requests for
domain name like \\domain_name
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

How do GC's register _MSDCS info in the DNS root from a child doma 5
Slow Logons and Can't open files 0
DC/DNS 4
DNS Server 2008 r2 cant add comp to domain error 7
AD Trust to NT4 Domain 3
LDAP traffic across sites 1
Zone transfers in AD-integrated DNS 1
Global Cat Servers and DNS 2

Top