You can use the security site attribute, with the NFS V2, V3, and V4 protocols, to select the level of protection for different types of data access. A different protection level can be specified for MVS data sets, HFS files, and data that is accessed using the public file handle. The attribute used to protect data access is the security attribute. The format of the keyword is security(mvs[,hfs,public]). The following are the security options: exports, none, saf, and safexp. See Site attributes syntax for syntax rules.) The z/OS NFS server can be configured to handle security in the following ways:

• None
• Exports list checking
• System Authorization Facility (SAF) checking
• Customized installation security exit
• System Authorization Facility (SAF) checking with checklist processing (to bypass SAF for files and directories under selected mount points)
• A combination of these approaches