This article is from the Windows NT Internet FAQ, by firstname.lastname@example.org (Steve Scoggins) with numerous contributions by others.
Double click on the Main program group icon, then double click on
the Control Panel icon, then double click on Network icon, select
the TCP/IP protocol and click on the configure button. Click on
DNS and verify the following is correct:
A.) The Host Name for your PC
B.) Your Domain Name
C.) Add the proper DNS IP address or addresses for your slip/ppp
Click on OK to confirm DNS changes
Click on OK to close out the TCP configuration dialog.
Click on OK to close the Network configuration dialog.
NOTE: You will have to setup Rasphone to manually dial the first time you
make a slip connection. Set the security options to "Use clear text
Terminal login only", and set the Before and After Scripts to NONE. Then
select/highlight your entry and click on Dial. You will manually login
the first time you dialup for the slip connection, after the valid login
using your username and password type slip<cr> at the remote servers
command prompt, then type your IP into the little white box at the
lower right side of the screen and click on the DONE button.