Question : DNS Suffix Search List contains identical two identical values

My question is this:

As you can see from the ipconfig output listed below the "DNS Suffix Search List" has two entries. Both entries are identical. I know for fact that one of them is placed there because I have defined a DNS Name in our DHCP scope. That entry also appears in the "Connection-specific DNS Suffix" All good so far however where is the second entry comming from? I double checked AD ... no not there, I checked a workstations for a manual entry ... no not there.  When I run an ipconfig/all from the server the DNS suffix search list only contains one entry (DSI.Calgary) and the Connection-specific DNS Suffix lists nothing.  All workstations display the same characteristics. So it seems as thought the second entry is comming from the server somewhere ... where? Anyone know?


C:\>ipconfig/all

Windows IP Configuration

        Host Name . . . . . . . . . . . . : dsi-03
        Primary Dns Suffix  . . . . . . . : DSI.Calgary
        Node Type . . . . . . . . . . . . : Broadcast
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : DSI.Calgary
                                            DSI.Calgary

Ethernet adapter DSI Network:

        Connection-specific DNS Suffix  . : DSI.Calgary
        Description . . . . . . . . . . . : Intel(R) PRO/1000 CT Network Connection
        Physical Address. . . . . . . . . : 00-0C-6E-67-14-9A
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.0.5
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.0.1
        DHCP Server . . . . . . . . . . . : 192.168.0.2
        DNS Servers . . . . . . . . . . . : 192.168.0.2
        Lease Obtained. . . . . . . . . . : December 6, 2004 10:30:22 PM
        Lease Expires . . . . . . . . . . : December 14, 2004 10:30:22 PM

Answer : DNS Suffix Search List contains identical two identical values

Are you using AD integrated DNS zones?  If so, joining the AD domain automatically puts that there so that name resolution is handled by DNS instead of WINS.  On static IPs, it gets listed once.  DHCP clients get an additional listing, which is why they have 2.