HP Visualize b2000 hp enterprise file system: release note for hp DCE/9000 enh - Page 37

Compatibility Information and Installation Requirements NIS and Integrated Login Interoperability NIS and Integrated Login Interoperability NIS, Integrated Login, and DCE/DFS should interoperate without any problems because they do not have any knowledge of one another. Both Integrated Login and NIS attempt to solve the problem of creating a common /etc/passwd and /etc/group file on multiple nodes. Integrated Login does this by using /opt/dce/bin/passwd_export to pull the contents of the DCE registry (basically the global /etc/passwd and /etc/group files) onto each node. NIS, on the other hand, gets the global /etc/passwd and /etc/group files through a hook in the getpwent() system call. DCE/DFS uses this functionality primarily to print a username and group when you perform an ls -l within DFS. The second function of Integrated Login, which NIS does not provide, is to obtain a user's DCE credentials when a user performs a standard UNIX login through telnet, ftp, CDE, etc. If Integrated Login obtains the credentials successfully, the user accesses DFS in an authenticated manner, and without having to perform a dce_login. When DCE is not available, Integrated Login falls back to using the /etc/passwd file; upon successful login, the user does not have DCE credentials, gains unauthenticated access to DFS, and thus can only access entries with an any_other ACL entry. 37