PAM/NSS-DCE for Linux is a nice and portable way to integrate Linux clients into existing DCE/DFS environments. The basic idea is to make use of PAM (Pluggable Authentication Modules) and NSS (Name Service Switch). DFS access is gained using the so called "NFS to DFS gateway" that comes with DCE/DFS. A PAM module is used to authenticate against the DCE registry and to set up the appropriate NFS/DFS mappings. The network connections between the Linux clients and the DCE/DFS host used for authentication are secured by SSL. An appropriate NSS module is responsible for the name service lookups like user <-> uid and group <-> gid conversions. A corresponding daemon pair (pamdced and nssdced) on any DCE client serves the PAM and NSS requests.