Netgear FA311TX

Mike Davis jmdavis at
Mon May 20 15:52:11 PDT 2002

I think that Greg and the other posters are talking on different levels. What Greg is saying makes sense. If every
node is a slave, every node has the maps and can use localhost as the NIS server. In this case, NIS is being used
as an alternative to propagating a master password file to all of the nodes.

As a practical point, I like to have a number of slave servers and I used this method (ie. each machine a slave)
on even small installations to make sure that network traffic didn't keep people from being able to login. Since
the maps are on all of the machines, and each machine can serve the others, the chances of complete failure drop
dramatically (assuming that your jobs to propagate maps actually work).


Serguei Patchkovskii wrote:

> ----- Original Message -----
> From: "Greg Lindahl" <lindahl at>:
> > No, I mean every machine is a slave server. This is considered "best
> > practices" in large Unix shops that use yp... it's the only way to get
> > it to run fast.
> As a practical point, I did have a 94-node fast ethernet cluster, with nodes
> configured as NIS clients (-not- as slave servers). NIS was used to
> distribute
> passwd, hosts, services, and automounter maps. The performance of NIS
> was nether an issue.
> _______________________________________________
> Beowulf mailing list, Beowulf at
> To change your subscription (digest mode or unsubscribe) visit

Mike Davis                             Web and Research Computing Services
Unix Systems Manager            Virginia Commonwealth University
jmdavis at           804-828-3885 (fax: 804-828-9807)

More information about the Beowulf mailing list