[TUHS] YP / NIS / NIS+ / LDAP
gtaylor at tnetconsulting.net
Tue Nov 6 05:32:26 AEST 2018
On 11/05/2018 09:12 AM, Arthur Krewat wrote:
> It was possible, unless you used a network filter on the server, to just
> ypbind to the server, and then you could ypcat all the maps. Not to
> mention that without specifying a server, it was a broadcast. So any YP
> server on the subnet would answer.
Duly noted. Thank you for the explanation.
> NIS+ was encrypted over the network, and needed a public key mechanism
> to authenticate clients. One of which was the server itself. With it's
> hierarchical architecture, it had a lot of flexibility.
The encryption would thwart snooping. But it doesn't sound like that
would prevent a properly authenticated client from ypcating too much
> I really never understood why people didn't like NIS+. It took an extra
> step or two to do certain things, but once scripted it was a fairly
> secure way of handling authentication and directory services.
I've heard a lot of people say they don't like something when they had
something else that did what they needed / wanted (at the time) that
required less work. Occam's Razor / Parsimony....
> I added new maps to it to do custom .cshrc/.profile scripts using
> subsections in /usr/local/profile, and a few other customizations. Add
> it's compatibility mode for NIS/YP, and you could use it to serve not
> only Sun clients.
> Operationally, it really was just NIS/YP but with a lot of whiz-bang
> features. In a deployment of a few hundred mechanical and electrical
> engineers, with about 50 actual workstations and servers I never had a
> problem with it. Permissions and other features were actually quite useful.
> However, I must say, I kept the NIS/YP way of using flat files to
> regenerate the NIS+ maps each time they were edited. So I guess I
> cheated a little.
Work smarter, not harder.
Grant. . . .
unix || die
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