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OverviewDeploymentManagementOperationReferenceGlossary

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    DEK

    DKE (Data Encryption Key) is a key that encrypts and decrypts data to ensure data confidentiality during write and read processes.

    Deployment control node

    When deploying an active-active cluster, you need to access the management IP of a node in either the primary or secondary availability zone through a browser to enter the cluster deployment page. This node serves as the control node during cluster deployment, and is therefore referred to as the deployment control node.

    Distributed firewall

    Employs micro-segmentation based on a zero-trust network model to address data center virtual network security challenges, offering flexible and granular protection for business applications.

    DNAT

    In network load balancing, DNAT (Destination Network Address Translation) uses the VIP address to communicate with the client. After the load balancer virtual machine receives a request, it automatically translates the destination address of the request from the VIP address to the actual IP address of the backend server.

    In VPC networking, DNAT is mainly used to publish services inside a VPC. When a VPC needs to provide external services, the external address initiates an active connection to access the DNAT IP, and DNAT translates the connection to the VPC according to the set DNAT rule.

    DRS

    DRS (Dynamic Resource Scheduler) is a dynamic resource scheduling system that uses dynamic monitoring and virtual machine migration to correct virtual machines that violate VM placement policies, and, under the premise of complying with these policies, achieves cluster workload balancing.