Linux ACL and linuxacl

Linux ACL and linuxacl

To support ACL permissions, you must support partitions (ACL permissions are granted by default)

Dumpe2fs-h/dev/sda3 ==> dumpe2fs is a command to query the details of a specified partition.

-H => only the information in the super block is displayed, and the details of the disk block group are not displayed.

Temporarily enable the partition ACL permission

Mount-o remount, acl/==> allow the root partition to temporarily support ACL permissions (no more after restart)

Enable permanently

Vim/etc/fstab: Change ults to ults, acl

Restart mount-o remount ==> re-mount. You can also restart

Bytes --------------------------------------------------------------------------------------------

View and set ACL Permissions

Getfacle file name ==> view acl Permissions

Setfacl [Option] File Name

Option:

-M: sets ACL permissions.

-X: deletes the specified ACL permission.

-B: delete all acl permissions.

-D: Set the default acl permission.

-K: Delete the default acl permission.

-R recursively sets acl Permissions

Example: setfacle-m u: user1: rx/test ==> format: u: [user name]: [permission] set the user acl permission to rx for the test directory