| Changing file/folder permissions |
| All files on UNIX (including Linux and other UNIX
variants) machines have access permissions. These tell the operating system
how to deal with requests to access these files. There are three types of
access: |
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Read - Denoted as r, files with read access can be
displayed to the user.
-
Write - Denoted as w, files with write access can be
modified by the user.
-
Execute - Denoted as x, files with execute access can
be executed as programs by the user.
|
| Access types are set for three types of
user group: |
|
|
| The web server needs to be able to read your web
pages in order to be able to display them in a browser. The following permissions
need to be set in order for your web site to function properly. |
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All HTML files and images need to be readable by others. The setting
for this is 644 (readable by User, Group, and World, and writable
by User), and is set automatically when you upload files.
-
All folders need to be executable by others. The setting for this
is 755 (readable by User, Group, and World, writable by User, executable
by User, Group, and World), and is set automatically when you create
a folder.
-
All CGI files (all files in the cgi-bin folder) need to be
executable by other. The setting for this is 755 (readable by User,
Group, and World, writable by User, executable by User, Group, and
World), and is not set automatically when you upload files.
You need to change file permissions manually. Refer to the Introduction
to CGI topic for more information.
|
| Warning: It is important that none of your files
or folders are writable by anyone else. Any file or folder which is writable
by others can be erased by them. Generally there is no problem, just
be careful in how you set your permissions. |
| To change file or folder permissions: |
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Navigate to the file or folder that you need to change.
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Click on the name of the file or folder.
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Click on the Change Permissions link in the top-right corner
of the window.
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Click on as many tick boxes as you require to create the right permission.
The permission numbers underneath the tick boxes will update automatically.
-
Click on the 
button when you have finished setting the permission. The new permission
level has now been saved and the display updated to show the modified
file.
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