I've read stories about users having too many group memberships. We seem to experience similar symptoms, though the usual tricks don't seem to work. In our case, there is a RHEL6 NFS server feeding multiple RHEL6 NFS clients. This is all NFSv4 with Kerberos. Most users can login fine, but domain admins get a "permission denied" when accessing their NFS-mounted home directory. The most notable commonality is their high number of group memberships. I've tried inflating my group count to greater than 16, my account continues to work fine. We've tried adding "--manage-gids" to rpc.mountd, no luck. Although it's unclear whether this really does anything in a kerberized environment. Any other suggestions? Other debugging tricks? Thanks Norman Elton -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html