When I was running NIS, long long ago, we explicitly did not keep NIS
Our /etc/hosts file kept the hosts we needed to maintain access to
despite DNS failures - NFS servers, NIS servers, and so on, and that
was it. We didn't want to move that into NIS, because we needed the
NIS entries before NIS was up, so we'd be splitting our local entries
into multiple places.. it just seemed like unnecessary work.
Hm. Are you talking about FQDNs, rather than just shortnames? whoof.
No matter what, if I were using NIS for host name service, I'd put any
hostname I'd be likely to refer to the server with into NIS, to avoid
the risk of having one name resolved by one service, and another by the
other. Consistency of behavior and all that.