Re: Please support NSF squashing multiple groups

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On Sat, Aug 20, 2011 at 08:35:43AM +1000, paul.szabo@xxxxxxxxxxxxx wrote:
> Dear Andy,
> 
> > Note that only AUTH_SYS sends GID and GID lists in the rpc_cred.
> > RPCSEC_GSS with Kerberos only sends the krb5 principal to the server.
> > The server looks up group membership via nsswitch - either /etc/groups
> > ...
> 
> Can the server be set so as to ignore any AUTH_SYS sends, and accept
> RPCSEC_GSS only?

Add something like sec=krb5:krb5i:krb5p to all your exports.

> > idmapd only deals with groups when a SETATTR arrives with ACE who's that
> > are group names where it maps the groupname@domain to a gid, or a
> > GETATTR ACL request where it maps gid->groupname@domain
> 
> Can the server be set so as to ignore any attempts from the client to
> set group memberships, but always set its own from /etc/group?

Use kerberos, or run mountd with the --manage-gids option.

--b.
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