HP Visualize J5000 hp enterprise file system: planning and configuring hp DCE/ - Page 18
Compatibility Information and Installation, Requirements
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About HP DCE/9000 Enhanced DFS Compatibility Information and Installation Requirements Compatibility Information and Installation Requirements This chapter describes the hardware, software, operating system, memory, and swap space requirements for HP DCE/9000 Enhanced DFS Version 3.0 on HP-UX 11.0. Enhanced DFS 3.0 Interoperability Enhanced DFS 3.0 clients and servers are completely interoperable with HP DCE/9000 Version 1.4x, 1.5.x, EFS 1.0, DFS 2.0, and 1.7 DFS clients and servers. Enhanced DFS 3.0 servers can "serve" HP DCE/9000 Version 1.4x and 1.7 DFS clients; conversely, HP DCE/9000 Version 1.4x and 1.7 DFS servers can serve Enhanced DFS 3.0 clients. 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, and so on. 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. 18