What does CHMOD or Change Permisisons mean?

[LDP]

CHMOD hay Change Permissions nghĩa là gì?
Nghĩa là thiết lập quyền (xem, xóa ...) trên file hay thư mục. Ở 3inetwork, bạn chỉ có thể thực hiện việc chmod ở những hosting Linux, server Windows không hỗ trợ việc chmod hay change permission. Thông thường chmod theo chuẩn 644, 755 hay 777. Bạn có thể chmod ở File Manager của DirectAdmin, bằng cách chọn Files (hay Folders) và chọn "set Permissions". Để chmod file (hay folders) bằng các chương trình FTP, bạn có thể tìm những chức năng như "Change File Attributes", "Properties", hay “Chmod” ... và làm theo hướng dẫn của FTP Client.

Bên dưới là bảng qui định mã quyền ở servers Linux

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What does CHMOD or Change Permisisons mean?
It means to set a certain permission on the file or directory. The most common chmod commands are 644, 755 or 777. You can chmod in DirectAdmin in File Manager by selecting the file and clicking on "set Permissions". To chmod a certain file or a category using an FTP client, find something like "Change File Attributes", “Properties”, or “Chmod” and enter the chmod command script instructions tell you.

Permissions

Quote:u - User who owns the file.
g - Group that owns the file.
o - Other.
a - All.
r - Read the file.
w - Write or edit the file.
x - Execute or run the file as a program.

Numeric Permissions:
CHMOD can also to attributed by using Numeric Permissions which are summed together:

Quote:400 read by owner
040 read by group
004 read by anybody (other)
200 write by owner
020 write by group
002 write by anybody
100 execute by owner
010 execute by group
001 execute by anybody

Example:
Read by Owner + write by owner + execute by owner + read by group + execute by group + read by anybody (world) + execute by anybody (world) = 400+200+100+40+10+4+1 = 755

[denissharper]

Associated with each file system is a set of permissions. Tell the UNIX file permissions with what can be done and by whom. Set / A file permissions you need to use chmod to modify the program. Of course, just a change file permissions for the owner of a file can use chmod. chmod the following: chmod [options] mode file (s syntax)