Access Control Lists
Most of the time you should be able to achieve the file security you require using a combination of the standard Solaris permissions and Solaris groups. However, if you cannot easily achieve the desired result you can also make use of Access Control Lists (ACLs).
ACLs allow you to go beyond being able to set permissions for a file's owner, group, and others, and let you add specific permissions for specific users. They also allow the owner of the file to manage the ACL for that file so they do not have to rely on the system administrator for certain tasks (such as making changes to the /etc/group file).
To make use of ACLs, you need to become familiar with two Solaris commands. These are getfacl, which will display a file's ...
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