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Chapter 5: Advanced Operations
Access Sharing Policy
There are three modes available:
1. Disables—Use regular give/take method (default). By default, all users can take
keyboard and mouse control of the system (after connecting via VNC) using a
single mouse click.
2. Enforce single-user access policy (visible screen). Some circumstances require
more strict control of this capability, so the admin user can select this mode for
the highest priority access. With a single-user access policy, only one user may
control the host computer(s). New connections are permitted, but they will be
able to view the screen only, but not control the host computer(s). Once the
first user disconnects (or otherwise gives up control), the second user will be
able to access the system immediately.
3. Enforce single-user access policy (blank screen contents). Some circumstances
require more strict control of this capability. The admin user can select this
mode for the highest privacy; no one can see what the admin user is doing
from the VNC screen. That is, the admin user can blank the screen contents
when another user is connected but not controlling the keyboard and mouse.
With a single-user access policy, only one user may control the system. New
connections are permitted, but they will NOT be able to see or even control the
host computer(s). Once the first user disconnects (or otherwise gives up con-
trol), the second user will be able to access the system immediately. Only the
admin user can see or control the host computer(s).
Local User Lockout
There are 2 modes available:
1. Disabled—Local user always has access (default). Under this mode, the local
user has the access right to control the host computer(s).
2. Enabled—Network user given priority. Under this mode, the local user has NO
right to control the host computer(s). And on the screen, an IP-OSD menu pops
up as the following image shown. The local user can’t see or do anything; he
can only view the IP-OSD menu shown on the screen. That is, the admin user
can select this mode to lock out the local user. Please keep in mind that the
local user has no way to take control from the network user, so an unattended
VNC session can cause a problem. Under this situation, if you are locked out of
the system because someone has left a VNC session connected and cannot be
reached though other means, the admin user may close all VNC connections.
See the Status page (see Section 5.5.1) to access this feature.
