Alternatives for Yellow Pages?

[David Brown]

Hi.  Over the past several months, I've read several articles from
SysAdmins who said that they didn't use Yellow Pages on their networks.
I can understand this: we use yp and it's a real pain sometimes.  What
are some alternate ways to get similar effects?  (I want user x to be able
to use his same username and password on all our machines, and when he
changes it on any machine, I want that change propagated to all the others).
I don't even know if this is possible without a working yp, but any and 
all ideas are welcome!  I've got a small network of Suns (SunOS3.5) and
a VAX (4.3+NFS).

Thanks in advance,
  David Brown

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David Brown
Armstrong State College, Savannah, Georgia
uucp: ...!{akgua,allegra,amd,hplabs,uunet,seismo,ut-ngp}!gatech!gitpyr!david
ARPA: david at pyr.gatech.edu