Linux cloud server

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g., so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:plesk with letsencrypt link

It produced this output: Error: Could not issue a Let’s Encrypt SSL/TLS certificate for .

Your domain in Plesk is hosted on the IP address(es): , but the DNS challenge used another IP address: .
Please check the actual DNS zone of your domain and make sure that the IP addresses in the DNS zone and for the hosting are the same.

Invalid response from
Type: urn:acme:error:unauthorized
Status: 403
Detail: Invalid response from [2607:f8b0:400f:800::200e]: "\n<html "

My web server is (include version): cloudserverM

The operating system my web server runs on is (include version):debian 9 plesk onyx (now) was centos and ubuntu before that.

My hosting provider, if applicable, is:1and1ionos

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):plesk onyx

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot): I am not sure certbot was used in the plesk.

I apologize in advance for my ignorance of ssl in general. :slight_smile:

I am learning server management by myself, to include dns ns ip ssl host and hostname etcs, it’s pretty confusing.
I have deployed and deleted multiple server configurations with different domain names which has released and assigned new static ip addresses each time… I have yet to learn how to keep my static IP between deployments but, I am at least on to the fact that i need to now. My keys of course are gone with each deployment. I can use all the help and advice you can give me. I assume if the ns stays the same and the ip changes then their is a problem otherwise if the ns and ip changes then a new cert can be generated… My immediate problem is for I am sure I will have the same problem in the near future for
I have a couple of domains on another server with your certs but I will be migrating them what will I need to do for them… and currently on linode with nginx and ubuntu and accessed only through ssh i.e manually acquired with certbot? :smile:

Hi @Jim

your setup looks wrong.

You have redirects to a site ( )

If you use http 01 validation, your client creates a file in /.well-known/acme-challenge, Letsencrypt checks that files - and follows redirects.

But Letsencrypt is redirected to - there isn’t the validation file.


you see that Letsencrypt tries to check that file. That can’t work.

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Ok, thanks I will look into it, thats wierd.

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I would like to thank you for your hard work in dealing with people like me.:sweat_smile: It must be a stressful job for you and you handle it gracefully. I am ashamed to admit that I got my domain name wrong, rather it was :flushed: Again I thank you for your professionalism and selfless work for the community.

Jim Dunn

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