The Label Attribute

In variable file systems the label of each object is set when it is created and can be changed by an authorized user. In fixed file systems, a single label is assigned when the file system is mounted. The label can be changed only if an object is moved from the fixed file system. Because they are configured to have a single label when mounted on Trusted Solaris hosts, fixed attribute file systems are also referred to as single-label file systems.

The label is obtained differently when a fixed-attribute file system is NFS-mounted than when it is PCFS-mounted from a floppy disk or HSFS-mounted from a CDROM.

• An NFS-mounted file system is assigned the label that is specified in the Default Label setting in the Security Families template assigned to the remote computer from which the file system is NFS-mounted.

• For a PCFS- or HSFS-mounted fixed-attribute file system, the label is specified at mount time. either on the mount command line or in an entry in the vfstab_adjunct(4) file.