# Initial Configuration of the Management Center

Initial configurations are basic configurations of anti-DDoS devices in the ATIC management center, covering adding devices, adding collectors, and configuring defense groups.

- Logging In to the ATIC Management Center
  The section describes how to log in to the ATIC management center.
- Customizing a Homepage
  By customizing a homepage, you can place real-time interface traffic comparison, Zone traffic comparison, Zone traffic distribution, traffic top 10, abnormal state monitoring, alarm monitoring, and IP traffic monitoring within seconds on the homepage.
- Adding Devices
  Adding devices is the prerequisite of all device operations. Only the administrator who has the right to create devices can add devices.
- (Optional) Configuring a Collector
  If only one collector is available, the new AntiDDoS devices or AntiDDoS1820-N devices are automatically associated with the collector. If multiple collectors are available, associate AntiDDoS devices or AntiDDoS1820-N devices with the given collector.
- (Optional) Configuring the Defense Group
  A defense group identifies a collection of AntiDDoS devices and their networking relationship. If an AntiDDoS is deployed in out-of-path mode, traffic diversion can be implemented only after the detecting device and cleaning device are added to the same defense group. By default, all detecting and cleaning devices are added to the same defense group.

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