Thanks very much! You are the man! This was exactly what I was looking for. I do have my web/ftp/mail servers set up in a similar fashion... the DNS was the one troubling me with those protocols other than 53. Thanks again.
Take care, Mike
IF all it is a DNS server then:
Go to Network Properties; Properties of the NIC you are protecting; Leave only TCP/IP selected; Highlight TCP/IP and Select properties; Select advanced; Select the WINS tab; Select Disable NetBIOS over TCP/IP; Select Options; Select TCP/IP Filtering Properties; Select Enable TCP/IP Filtering for All Adapters;
Select Permit Only in all three boxes; TCP add 53,1026,1027,1028,1029 UDP add 53,1026,1027,1028,1029 IP Proto add 6
Reboot and that is it.
You can verify it in Regedt32 by looking under
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interf aces\{00000000-0000-0000-0000-000000000000} (the external interface) RawIPAllowedProtocols:REG_MULTI-SZ:6 TCPAllowedPorts:REG_MULTI-SZ:53,1026,1027,1028,1029 UDPAllowedPorts:REG_MULTI-SZ:53,1026,1027,1028,1029
Now everyone is going to start bitching about what are the UDP ports for
1026 etc...... the answer is, I do not know but by playing around with this,
it is the configuration I got to work. I have 3 DNS servers running in this
configuration.
Also you can add 20,21 and 80,443 and IIS and FTP can run on them.
Dave
_____________________ Dave Kleiman [EMAIL PROTECTED] www.netmedic.net
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