Error validating DNS: No Valid IP addresses found

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Hi everybody.

I’m trying to use acme-nosudo to create my ssl cert. Everything looks good until I get to “Waiting for challenge to pass”, at which point I get an error: “No valid IP addresses found for sm000154.onprem.safarimontage.com”. As far as I can tell, the DNS is ok and resolves correctly.

My domain is: sm000154.onprem.safarimontage.com

I ran this command: python sign_csr.py --public-key sm000154.pub sm000154.onprem.safarimontage.com.csr > sm000154.onprem.safarimontage.com.crt

It produced this output: No valid IP addresses found for sm000154.onprem.safarimontage.com

I can login to a root shell on my machine (yes or no, or I don’t know): yes

I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no

I’d be most grateful for any pointers!

Cheers,
Ami.

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sm000154.onprem.safarimontage.com. 300 IN A     172.21.60.132

That’s not a public IP address. 172.16.0.0/12 is private, like 10.0.0.0/8 and 192.168.0.0/16.

HTTP validation requires a public IPv4 or IPv6 address. You have to change the DNS records, or use DNS validation.

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