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Chapter 5: Administration Site
Firewall Safeguard
When enabling your firewall for the first time or applying changes to the
configuration of the firewall currently functioning, the Qube 3 verifies that the
Web browser that the Qube 3 Administrator is currently using is still able to
communicate with the Qube 3 after the firewall settings have been applied.
The purpose of this verification is to prevent the Qube 3 Administrator from
accidentally misconfiguring the firewall and locking herself or himself out of the
Qube 3 completely, rendering the Qube 3 inaccessible.
If, sixty seconds after the new firewall settings have been applied, the Qube 3 has
not received any communication from the Qube 3 Administrator's Web browser,
the Qube 3 automatically disables the firewall feature.
Applying changes
If you make changes to the Basic Firewall settings when the firewall is already
enabled, the changes are not immediately reflected in the state of the firewall that
is currently functioning.
You must click Apply Changes Now to make your changes take effect. The
changes do not take effect in real time because that could cause the firewall to
enter a temporary, insecure state while you are in the process of editing the
firewall configuration.
If Basic Firewall is not enabled, the Apply Changes Now button is greyed out.
Enabling the firewall feature
To enable the firewall feature:
1.
Select Administration > Network Services > Basic Firewall. The Firewall
Settings table appears; see Figure 71.
2. Click to enable the check box Enable Firewall.
3. Click Save. A popup window notifies you that you are about to enable packet
filtering on your firewall.
4. Click OK.
Figure 71. Firewall Settings table
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Cobalt Qube 3 User Manual
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