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[public-dns-discuss] Re: Getting external IP in app

I will take note. Thank you for your response!


четверг, 10 октября 2019 г., 17:18:09 UTC+3 пользователь Alex Dupuy написал:
My question: may i use "o-o.myaddr.l.google.com" request to google DNS for getting external IP address in my app or this will break terms of using the service?

You shouldn't do this, because it will sometimes return incorrect results due to DNS caching. In any case, the addresses returned from that query are the full address of the DNS resolver at Google (not the user's external IP address) and the subnet (/24 for IPv4 or /56 for IPv6) of the client's external IP address. It does not report the full client IP address

You should use an external IP reporting service like https://icanhazip.com (which supports IPv6) or if you really want to use Google, use this: https://www.google.com/search?q=external+ip+lookup

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