Listing Modified Configuration Objects - D-Link NetDefend DFL-210 User Manual

2.1.5. Working with Configurations
CLI
gw-world:/> undelete Address IP4Address myhost
Web Interface
1. Go to Objects > Address Book
2. Right-click on the row containing the myhost object.
3. In the dropdown menu displayed, select Undo Delete.
Listing Modified Objects
After modifying several configuration objects, you might want to see a list of the objects that were
changed, added and removed since the last commit.
Example 2.9. Listing Modified Configuration Objects
This example shows how to list configuration objects that have been modified.
CLI
gw-world:/> show -changes
Type
-------------
- IP4Address
* ServiceTCPUDP
A "+" character in front of the row indicates that the object has been added. A "*" character indicates that the ob-
ject has been modified. A "-" character indicates that the object has been marked for deletion.
Web Interface
1. Go to Configuration > View Changes in the menu bar.
A list of changes is displayed.
Activating and Committing a Configuration
When changes to a configuration have been made, the configuration has to be activated for those
changes to have an impact on the running system. During the activation process, the new proposed
configuration is validated and NetDefendOS will attempt to initialize affected subsystems with the
new configuration data.
If the new configuration is validated, NetDefendOS will wait for a short period (30 seconds by de-
fault) during which a connection to the administrator must be re-established. If the configuratin was
activated via the CLI, a commit command must be issued within that period. If the connection could
not be re-established or if the commit command was not issued, the system will revert to using the
previous configuration. This is a powerful fail-safe mechanism as it will, amongst others things, pre-
vent you from locking yourself out of the firewall when using a remote system.
Object
------
myhost
telnet
Committing IPsec Changes
The adminstrator should be aware that if any changes that effect the configurations of
live IPsec tunnels are committed, then those live tunnels connections WILL BE TER-
MINATED and must be re-established.
Chapter 2. Operations and Maintenance
19