AWS Public IP 的變動可以透過 Amazon SNS 訂閱

在「Subscribe to AWS Public IP Address Changes via Amazon SNS」這邊提供利用現有的 Amazon SNS 所提供的新功能。

依照說明,訂 arn:aws:sns:us-east-1:806199016981:AmazonIpSpaceChanged 就可以了:

會收到類似於這樣的東西:

{
  "create-time":"yyyy-mm-ddThh:mm:ss+00:00",
  "synctoken":"0123456789",
  "md5":"6a45316e8bc9463c9e926d5d37836d33",
  "url":"https://ip-ranges.amazonaws.com/ip-ranges.json"
}

不過之前就可以 polling 了,這個功能好像還好...

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