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by lxgr 476 days ago
How so? Getting your public/external IP does not seem possible behind a NAT without an external service.
2 comments
Havoc 476 days ago
No idea. All I can tell you is that it works and if I need to hard code a IP check like this then I’d rather rely on a big player like Google or cloudflare ns than someone’s project site
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lxgr 476 days ago
Not sure if I'd trust an undocumented Google feature without any SLA more, to be honest. Rumor has it that Google have discontinued a service or two before.
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Sophira 476 days ago
What command line do you use?
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Havoc 475 days ago
dig whoami.cloudflare ch txt @1.1.1.1 +short
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speleding 476 days ago
You can use dig:

  dig +short -4 myip.opendns.com @resolver1.opendns.com
(still an external service, but not reliant on a website)
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lxgr 476 days ago
That's just another protocol in the end (DNS vs. HTTP), or am I missing something?

DNS also runs a higher risk of being cached or mangled somewhere along the way by middleboxes. HTTPS avoids that problem.

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