**NFS volumes sharing / scratchs mounting** * ''/etc/exports'' exports the local ''scratch'', ''scratch2'' and ''home'' to the ''net_thoth'' group using the ''thoth'' server: ''thoth-server.inrialpes.fr'' with certain ''read''/''write'' permissions. * ''/etc/auto.master'' is an automounter map that maps the automounter to their mount point, for instance ''/scratch /etc/auto.scratch'' * Specifically, ''/etc/auto.scratch'' mounts any directory on ''local_scratch'' on the fly. * Note that the ''home'' directories follow a different procedure as they are managed by the LDAP which is a kind of DHCP for authentication and it provides some mounting rules for the ''home'' directories.