introduction Your files in your network data space are protected by Unix security features. These features control read, write, and execute access to your folders and files. For each folder and file, you can set the level of access. You need to change the permission settings for the "public_html" folder to allow users to view (read) your Web pages from a Web browser.
definitions
  • Read: The action of transferring data from an input source into a computer's memory or from memory into the central processing unit (CPU).
  • Write: A transfer of information to a storage device, such as a disk, or to an output device, such as the monitor or printer. For example, a disk write means that information is transferred from memory to storage on disk.
  • Execute: To perform an instruction. In programming, execution implies loading the machine code of the program into memory and then performing the instructions.
(Definitions obtained from the online Microsoft Press Computer Dictionary, Third Edition.)
before you start Before trying the following steps, be sure that you have a NetID. For the following steps, you need to already be logged on to the ITS Unix environment.
steps viewing a list of directories with details

NOTE At the gamera% prompt, type "cd ..", and press Enter to move up from the public_html folder to the root level.

At the gamera% prompt, type "ls -l", and press Enter.
You will see:
drwx--l--    <your NetID>    512    Nov 13    0:47
public_html

changing permissions on your files

At the gamera% prompt, type "chmod 711 ~netid" and press Enter.
NOTE Replace "netid" with your actual NetID.

changing permissions on public_html

At the gamera% prompt, type "chmod 711 public_html" and press Enter.

changing permissions on folders in public_html

At the gamera% prompt, type "chmod 755 name of folder" and press Enter.
NOTE Replace "name of folder" with the actual folder name.

changing permissions on files

  1. Change to the public_html folder by typing "cd public_html" and press Enter.
  2. Type "ls -l" to view the folder's contents.
  3. To set permissions for a file within the public_html folder, type "chmod 644 name of file" and press Enter.
    NOTE Replace "name of file" with the actual file name. For example, "index.html".
    To set permissions for all files within the folder, type "chmod 644 *.*" and press Enter.
useful commands
chmod To change mode or permissions.
u, g, or o To change permission for user, group, or other.
+ or - To add or subtract permission.
r, w, or e To add or subtract read, write, or execute permissions.
cd name of folder To change to a directory.
cd .. To move up a directory.
help

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