No need for inetd, just remain using xinetd.
Here is what you need to do though:
edit the file
there will be two things to change, first a line that states
then you can access swat from the local machine, using 127.0.0.1:901, or you can remove the line in the swat file that contains that ip, then access from anywhere. _MAKE_ sure to insert the line again, or disable swat, when you are done or leave a security hole!