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Root User Permissions On Files

Source: Internet
Author: User
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For details about the file permission of the root user-Linux general technology-Linux technology and application information, see the following. I have a test server, operating system SUSE 9. A Linux-based email system is installed on the server. An existing file has the following problems (zzz is the upper-level directory of the file Trash. mbox ):
Ll zzz
/Bin/ls: zzz/Trash. mbox: Permission denied
Chmod 777 zzz/Trash. mbox
Chmod: cannot access 'zzz/Trash. mbox': Permission denied
Chown root: root zzz/Trash. mbox
Chown: cannot access 'zzz/Trash. mbox': Permission denied
Lsattr zzz/Trash. mbox
Lsattr: Permission denied while trying to stat zzz/Trash. mbox

My file system is Reizerfs.
How can I solve this problem? Thank you!

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