Probably not necessary no.

I went ahead and removed it and replaced it with 8.8.8.8 as the alternate DNS server for now. (I would like to have OpenDNS running to block staff from surfing too much at some point which I think is done through DNS forwarders).


These are my current DNS errors.
Title:
DNS: DNS servers on Local Area Connection should include the loopback address, but not as the first entry.

Severity:
Error

Date:
7/24/2012 11:27:55 AM

Category:
Configuration

Issue:
The network adapter Local Area Connection does not list the loopback IP address as a DNS server, or it is configured as the first entry.

Impact:
If the loopback IP address is the first entry in the list of DNS servers, Active Directory might be unable to find its replication partners.

Resolution:
Configure adapter settings to add the loopback IP address to the list of DNS servers on all active interfaces, but not as the first server in the list.

More information about this best practice and detailed resolution procedures: http://go.microsoft.com/fwlink/?LinkId=188760

Issue:
The DNS server 8.8.8.8 on Local Area Connection did not successfully resolve the name _ldap._tcp.gc._msdcs.SKYLYNMEDICAL.local.

Impact:
Active Directory Domain Services (AD DS) operations that depend on locating a Global Catalog will fail.

Resolution:
Click Start, click Network, click Network and Sharing Center, and then click Change adapter settings to configure DNS servers that can resolve the name _ldap._tcp.gc._msdcs.SKYLYNMEDICAL.local.


New IPCONFIG

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

Windows IP Configuration

Host Name . . . . . . . . . . . . : AC-SERVER
Primary Dns Suffix . . . . . . . : SKYLYNMEDICAL.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : SKYLYNMEDICAL.local

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS
VBD Client)
Physical Address. . . . . . . . . : 00-1C-23-XX-XX-XX
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5854:4ef4:3128:XXXXXX(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.51
DHCPv6 IAID . . . . . . . . . . . : 234888227
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-9C-A7-5F-00-1C-XX-XX-XX-XX

DNS Servers . . . . . . . . . . . : ::1
192.168.1.100
8.8.8.8
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{C6D41D3E-A51F-414A-89E0-XXXXXXXXXX}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes


Slater