[TUHS] Directory services in early Unix networks?

Arthur Krewat krewat at kilonet.net
Fri Nov 9 10:06:03 AEST 2018

On 11/8/2018 6:14 PM, Warner Losh wrote:
> SunOS 4 definitely had YP. We used it in school when the Tops-20 
> machine was replaced by a boatload of 68000 machines running SunOS and 
> Suntools... I can't recall if 3.5 also had it or not... it was later 
> it changed to NIS.
Anything that had Sun's NFS had YP, at least as of version 2.0. It was 
part of the package.

Somewhere in Warren's archive is a source copy of NFS 2.0 from Sun that 
I donated. It's replete with all the YP stuff. Not sure if the following 
is the copy I donated, but it's close enough:


 From my copy:

-r--r--r--   1 krewat   kilonet     6356 Nov 20  1985 

Interesting that the date is one day off.

The copy of NFS 2.0 that I donated was integrated with BSD 4.2 at 
Computer Graphics Lab at New York Institute of Technology. When they 
went kaput, I managed to get my hands on that NFS tape along with a slew 
of other stuff that I can't do anything with because it's all copywrited.

/etc/nsswitch.conf in Solaris originated with NIS+ (NISPLUS). Sun seems 
to be the origin, and it only came about because of NIS+. That's my 
theory and I'm sticking with it ;)

art k.

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