[TUHS] Directory services in early Unix networks?

William Pechter pechter at gmail.com
Thu Nov 8 07:28:26 AEST 2018

I remember that early linux used /etc/host.conf -- or hosts.conf for DNS vs hosts file or to.

Hacking the SunOS4.1.3 library with the resolv21 fixes to add DNS w/o NIS was fun too.  Both about 1991 for me iirc.


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-----Original Message-----
From: Arthur Krewat <krewat at kilonet.net>
To: tuhs at minnie.tuhs.org
Sent: Wed, 07 Nov 2018 16:22
Subject: Re: [TUHS] Directory services in early Unix networks?

On 11/7/2018 10:52 AM, ron minnich wrote:
> On Wed, Nov 7, 2018 at 3:38 AM<arnold at skeeve.com>  wrote:
>> I'm not sure what you're asking.  When DNS came along, it became
>> a matter of editing /etc/nsswitch.conf to include dns as one of the
>> options along with files and yp/nis.
> This does not align with my memory at all. I was at udel until 1988
> and we started dealing with dns ca. 1986, and the shared library stuff
> I dealt with in sunos came later.
I first saw nsswitch.conf on Solaris. And lo-and-behold:

"Sun Microsystems <https://en.wikipedia.org/wiki/Sun_Microsystems> first 
developed NSS for their Solaris 
<https://en.wikipedia.org/wiki/Solaris_%28operating_system%29> operating 
system, but subsequently programmers ported it to many other operating 
systems including FreeBSD <https://en.wikipedia.org/wiki/FreeBSD>, 
NetBSD <https://en.wikipedia.org/wiki/NetBSD>, Linux 
<https://en.wikipedia.org/wiki/Linux>, HP-UX 
<https://en.wikipedia.org/wiki/HP-UX>, IRIX 
<https://en.wikipedia.org/wiki/IRIX> and AIX 


How true that is, I'd love to know.

art k.

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