>> Is NYS extensible?  Can I add the ability to configure Apache, Sendmail,
>> or even home-grown programs?  I really don't know much about NIS and its
>> descendants.
> 
> I havn't tried the Linux version (NYS), but basically NIS+ is a way to
> manage /etc/hosts, /etc/passwd, /etc/services, and more in a large
> environment. It's a distributed database that can be centrally
> administered. 
> 
> For those other files you mentions, rdist would be a good candidate for
> managing them.

You'll notice the /etc/nsswitch.conf file that is now present with current glibc
versions.  This file controls where functions like gethostbyname() look for
their information.  You can control whether to look in /etc/hosts, using DNS,
NIS(+) or even other naming services..

IIRC, glibc-2.1 is going to have NIS+ support (as a server) for Linux.

Dave


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