Consul官方文档1：加密通讯与服务拆分-用TLS来保护服务间通讯

Consul is a powerful tool that offers a solution for securing service-to-service communication in a dynamic and constantly changing environment. By providing encrypted communication through automatic TLS encryption and identity-based authorization, Consul ensures that sensitive data is protected during transit between services. Traditionally, securing service-to-service communication has been done through the use of firewalls, which use IP-based rules to control ingress and egress traffic. However, this approach becomes increasingly complex and difficult to manage in a dynamic setting, where services are constantly moving across machines and new machines are being created and destroyed. Consul simplifies this process by allowing for service segmentation that makes it easy to secure communication between services. By deploying Consul as a standalone certificate authority or integrating it with external signing authorities such as Vault, organizations can ensure that all communication between services is encrypted and authenticated. This encryption and authentication process helps to prevent unauthorized access to sensitive data, protecting it from potential security threats and attacks. By utilizing TLS encryption and identity-based authorization, Consul adds an extra layer of security to the communication between services, giving organizations peace of mind that their data is secure. In conclusion, Consul's ability to facilitate encrypted communication between services in a dynamic environment makes it a valuable tool for organizations looking to enhance the security of their service-to-service communication. By leveraging Consul's features, organizations can ensure that their data remains protected and secure, even in the face of constantly changing and evolving network environments. Trust Consul to keep your data safe and secure.