CSS uses network isolation in addition to various host and data security measures.
- Network isolation
The entire network is divided into two planes: service plane and management plane. The two planes are deployed and isolated physically to ensure the security of the service and management networks.
- Service plane: This is the network plane of the cluster. It provides service channels for users and delivers data definitions, indexing, and search capabilities.
- Management plane: This is the management console, where you manage CSS.
- Host security
CSS provides the following security measures:
- The VPC security group ensures the security of the hosts in a VPC.
- Network access control lists (ACLs) allow you to control what data can enter or exit your network.
- The internal security infrastructure (including the network firewall, intrusion detection system, and protection system) monitors all network traffic that enters or exits the VPC through an IPsec VPN.
- Data security
CSS uses multiple replicas, cross-AZ deployment of clusters, and third-party (OBS) backup of index data to ensure the security of user data.