User guide

3
MANAGEMENT FACILITIES:
SAFEGUARDING DATA
Access 
Users will normally only be able to use, change
or
delete files in their own
directories. The
main
exception to this is the files in the public directories, such as
$. UTILS
and $.
LIBRARY. Users
will usually be able
to
use files in these
directories, but not
change or delete them.
To control a file's accessibility to other users:
1.
Return to the main menu (press
I STOP I).
2.
Select BASIC, or the command screen of an application, and press
I
3. Type:
*ACCESS
name owner/public
where
name
is the name of the file whose access you want to change,
owner
is the access you want to allow its owner and
public is the access
you want to allow other users.
Owner and
public
can consist of any combination of R, W and L,
which have the following meanings:
R
means that the file can be read.
W
means that the file can be written to (changed).
L means that the file is locked (cannot be deleted).
See the Communicator
User Guide,
Chapter 2, for a fuller explanation.
4.
For example, to allow the owner to do what they like with a file but
allow other users only to use but not change or delete the file
text ,
type:
*ACCESS
text WR/RL
Security

Your user id, SYST, is very powerful; other users should not be allowed to use
it as it will allow them to perform all sorts of 'dangerous' tasks, such as
running NETMGR or deleting other users' files. To make sure that other
users do not use this id, remember to log off whenever you are leaving your
Communicator unattended, don't tell others your password and change your
password at regular intervals.
3 MANAGEMENT FACILITIES: SAFEGUARDING DATA

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