情况说明
因此,当我在工厂中构建我的超级传感器时,它将每 30 秒通过 MQTT 将其指标发送到 AWS IoT,我必须将传感器将连接到的 DNS 域名烘焙到设备中。
AWS IoT 建议以<random-string>.iot.eu-west-1.amazonaws.com
对我来说看起来像的形式使用端点A26PKG2U6WRS2I.iot.eu-west-1.amazonaws.com
这是稍微格式化的dig A26PKG2U6WRS2I.iot.eu-west-1.amazonaws.com
命令输出,显示经过几次重定向后,此域名解析为 6 个 IP 地址,这似乎是负载平衡器。
DOMAIN DETAILS:
A26PKG2U6WRS2I.iot.eu-west-1.amazonaws.com. 290
POINTS TO CNAME
iotmoonraker.eu-west-1.prod.iot.eu-west-1.amazonaws.com.
iotmoonraker.eu-west-1.prod.iot.eu-west-1.amazonaws.com. 254
POINTS TO CNAME
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com.
RESOLVES TO IPs:
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com. 50 IN A 54.229.34.249
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com. 50 IN A 52.19.106.35
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com. 50 IN A 52.18.139.53
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com. 50 IN A 52.48.96.41
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com. 50 IN A 52.19.155.13
dualstack.iotmoonraker-e-elb-9q2vvmxp3rir-1271985754.eu-west-1.elb.amazonaws.com. 50 IN A 54.76.47.209
问题
我有两个担心:
当我在 C 中为我的 PIC 微控制器实现 MQTT 通信时,我的 DNS 解析器被单个域可以解析到的这么多 IP 弄糊涂了。目前我不知道我是否可以解决这个问题。目前我的解决方案是 - 创建我自己的域名
iot-ingestion.domain-i-own.com
并将其指向其中一个 IP 地址。有更好的选择吗?A26PKG2U6WRS2I.iot.eu-west-1.amazonaws.com
将这个主机名烘焙到我的设备中有多可靠?如果我想在 2-3 年内切换更改 IoT 堆栈并切换到不同的技术/提供商怎么办?