Home DNS - DNSMgmt.rtf (0/1)

[boy]

Greetings all,

First, thanks for taking the time to answer these posts.

As you can see from the ipconfig the ISP's and Private NICs are on the
same machine. I'm able to resolve internally just fine. I'm having a
problem with the Internet resolution. When using DHCP the client
machines can not access the www. I have to assign a static IP for
them to get out.

What's wrong with my config?

Windows IP Configuration

Host Name . . . . . . . . . . . . : dc
Primary Dns Suffix . . . . . . . : HARRIS.LOCAL
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : HARRIS.LOCAL
mn.rr.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI TX
NIC (3C90
5B-TX)
Physical Address. . . . . . . . . : 00-10-5A-A3-59-3C
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : mn.rr.com
Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast
Ethernet
NIC
Physical Address. . . . . . . . . : 00-50-BA-4A-44-2F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 65.30.xxx.xxx
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Default Gateway . . . . . . . . . : 65.30.xxx.x
DHCP Server . . . . . . . . . . . : 24.94.165.169
DNS Servers . . . . . . . . . . . : 127.0.0.1
24.26.163.32
24.26.163.24
24.94.165.132
Lease Obtained. . . . . . . . . . : Saturday, April 03, 2004
11:47:42 AM

 

[Kevin D. Goodknecht [MVP]]

In

Greetings all,

First, thanks for taking the time to answer these posts.

As you can see from the ipconfig the ISP's and Private NICs are on the
same machine. I'm able to resolve internally just fine. I'm having a
problem with the Internet resolution. When using DHCP the client
machines can not access the www. I have to assign a static IP for
them to get out.

What's wrong with my config?

Windows IP Configuration

Host Name . . . . . . . . . . . . : dc
Primary Dns Suffix . . . . . . . : HARRIS.LOCAL
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : HARRIS.LOCAL
mn.rr.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI TX
NIC (3C90
5B-TX)
Physical Address. . . . . . . . . : 00-10-5A-A3-59-3C
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : mn.rr.com
Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast
Ethernet
NIC
Physical Address. . . . . . . . . : 00-50-BA-4A-44-2F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 65.30.xxx.xxx
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Default Gateway . . . . . . . . . : 65.30.xxx.x
DHCP Server . . . . . . . . . . . : 24.94.165.169
DNS Servers . . . . . . . . . . . : 127.0.0.1
24.26.163.32
24.26.163.24
24.94.165.132
Lease Obtained. . . . . . . . . . : Saturday, April 03, 2004
11:47:42 AM

Is there a "." in forward lookup zones?
If so delete it, that will enable the root hint servers, you can optionally
set a forwarder to your ISP's DNS.

Is this an Active Directory domain?
If it is, remove your ISP's DNS from the external connection and change its
DNS 127.0.0.1 to 192.168.0.1 only. No ISP's DNS permitted on any interface
in any position in an AD domain.


Are you using ICS or NAT in RRAS?
ISC is a known issue when used with DNS on the same machine, the DNS proxy
causes a conflicting use of port 53. Disable ICS and enable NAT in RRAS.