DNS

DNS 架构图，涵盖递归解析流程、全局服务器负载均衡以及 F5 分布式云 DNS 管理。

DNS 解析流程

标准 DNS 查询解析流程，从客户端经递归解析器到权威名称服务器，并集成 GSLB。

flowchart LR
  client@{ icon: 'lucide:globe', label: 'Client' }
  resolver@{ icon: 'carbon:dns-services', label: 'Recursive Resolver' }
  root@{ icon: 'lucide:server', label: 'Root DNS' }
  tld@{ icon: 'lucide:server', label: 'TLD Server' }
  auth@{ icon: 'carbon:server-dns', label: 'Authoritative DNS' }
  gslb@{ icon: 'carbon:load-balancer-global', label: 'GSLB' }

  client --> resolver
  resolver --> root
  root --> resolver
  resolver --> tld
  tld --> resolver
  resolver --> auth
  auth --> gslb
  gslb --> resolver
  resolver --> client

F5 XC DNS 管理

F5 分布式云 DNS 管理，在多云源点之间提供智能 DNS 负载均衡。

flowchart TD
  user@{ icon: 'lucide:globe', label: 'End Users' }
  xcdns@{ icon: 'f5xc:dns-management', label: 'XC DNS Management' }
  health@{ icon: 'f5xc:observability', label: 'Health Monitoring' }
  aws@{ icon: 'hashicorp-flight:aws-color', label: 'AWS Origin' }
  azure@{ icon: 'hashicorp-flight:azure-color', label: 'Azure Origin' }
  gcp@{ icon: 'hashicorp-flight:gcp-color', label: 'GCP Origin' }

  user --> xcdns
  xcdns --> health
  health --> aws
  health --> azure
  health --> gcp
  xcdns --> aws
  xcdns --> azure
  xcdns --> gcp

DNS 负载均衡架构

多层 DNS 负载均衡，具备地理路由、健康检查以及云区域间故障转移能力。

architecture-beta
  group dns(carbon:dns-services)[DNS Infrastructure]
  group region1(hashicorp-flight:aws-color)[US East]
  group region2(hashicorp-flight:azure-color)[EU West]

  service gslb(carbon:load-balancer-global)[GSLB] in dns
  service health(carbon:application)[Health Check] in dns
  service lb1(carbon:load-balancer-application)[Regional LB] in region1
  service app1(carbon:virtual-machine)[App Servers] in region1
  service lb2(carbon:load-balancer-application)[Regional LB] in region2
  service app2(carbon:virtual-machine)[App Servers] in region2

  gslb:R --> L:health
  gslb:B --> T:lb1
  lb1:R --> L:app1
  gslb:B --> T:lb2
  lb2:R --> L:app2