Can't access Swat.

[ktb <xyf@inetnebr.com>]

I'm trying to set up a network with Samba and can't get Swat to open in
my Netscape browser.  I've tried,

http://localhost:901/  which nets "Netscape unable to locate the server
keyword.netscape.com  Please check the server name and try again."

http://xyf:901/  Gives the same error.  (xyf is my hostname.)

http://127.0.0.1:901/  The error here is "Netscape's network connection
was refused be the server 127.0.0.1:901.  The server may not be
accepting connections or may be busy.  Try connecting again later."

Does anyone know why I can't get Swat up?  
Thanks,
kent