On Linux® or the UNIX® system, the root user account has
restricted access privileges to dynamic views on remote hosts.
Although many
Rational ClearCase operations
on hosts running Linux or the UNIX system treat a remote
root user
(one who is not logged on to the local host) as a privileged user, there are
several exceptions to this rule.
- When a user logged on as root attempts to access a dynamic view
on a remote host running Linux or the UNIX system, the user’s identity is interpreted
as nobody.nobody (unidentified user, unidentified group). This interpretation
is typical of NFS implementations on Linux and the UNIX system, and it provides a level of
security comparable to that provided by NFS. Because Rational ClearCase does
not support any mount option that controls how requests for access by remote root are
treated, view access by remote root is not allowed unless the view
specifies explicit access rights for nobody.nobody.
- Operations that change the user or group ownership of a view-private file,
such as the chown command on Linux and the UNIX system, fail when run by remote root.