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Access Control Lists: CentOS

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ACLs provide better options for various users or groups to the same file or directory in Linux. ACLs are becoming a standard feature of many of the server installs.
One of the dangers that acls attempt to avoid is allowing users to create files with 777 permissions, which become system wide security issues. In CentOS 5 / RHEL 5 the acl is the default mount option. This means that when the system is setup all the file systems have the acl as active. These defaults may be viewed with the dumpe2fs or tune2fs commands.
 read more | mail this link | score:5428 | -aweber, January 19, 2011
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