Issue The specified domain name is not a valid RFC domain : Customizing Plesk URL

[Narender Kumar]

Not sure, why getting an error when trying to set new custom url.

Need help urgently.

 

[Peter Debik]

"The specified domain name is not a valid RFC domain" means that the domain name you want to use is not a proper domain name as it would typically be registered on the Internet. Examples for possible names:
example.com
sub.example.com

 

[Narender Kumar]

The domain - I am using is registered on internet. As you could see the screen shot. Name is like

https://plesk

.mydomainname.in and it's a valid domain. I feel.. Plesk is validating *com domain and sub-domain but it shall accept the .in. Localized domain names as well.

 

[Peter Debik]

Please do not type the "https://", this is not part of the domain name. Just type the domainname, then it will work. There is no limitation for .in domains. But the "https://" is just not a part of the domain, it is a protocol definer used in browsers.

 

[Narender Kumar]

When I use the Url without http/ https. I get this error.

 

[Peter Debik]

And did you try the advice given in the big box with the red exclamation mark and the read background color?

 

[Narender Kumar]

Thanks for clarification. I missed the phrase.

Now I have logged in with the Url. And updated the custom url.

But I am getting certificate issue.

How can I issue a certification plesk panle or upload extranal certificate for thie subdomain.
Please assist.

 

[Kaspar]

See support article for solving certificate issue: https://support.plesk.com/hc/en-us/...-Let-s-Encrypt-other-certificate-authorities-

 

[Narender Kumar]

Thanks for your post.

This subdomain name is not the host name. It's a custom url which I am using as a url.. If I overwrite the domain name while reissue certificate then host name certificate is lost.

 

[Narender Kumar]

Does anyone has answer? Wanted to install the certificates.

 

[Peter Debik]

Could you please provide more details here? I think it is unclear why you mean by

If I overwrite the domain name while reissue certificate then host name certificate is lost.

What do you mean by "overwrite"? Where do you edit something and what do you mean by "host name certificate is lost"?

 

[Narender Kumar]

Ok.. Let me try to explain scenario..
My Server Host Name - hostname.example.in

And now I have created a subdomain like plesk.example.in which I have updated as custom Url for plesk use. Please refer the below screen.


Now custom url shall be protected with ssl certificate.
So where donI create/ update the certificate for this subdomain(plesk.example.in)

As suggested in the previous post, I went to SSL/TLS Cert under Tools Setting option.


Please refer the below screen




When I try click on +LetsEncrypt button to generate the certificate. It create the certificate for hostname by default.




I can update domain name and click on Reissue but hostname certificate which was already there. we lost.

If we keep hostname, then custom url which we placed. will be without SSL certificate.

Please suggest.

 

[Peter Debik]

You need to add the domain as a domain, e.g. with the "Add Domain" button in "Domains" menu. Then create the certificate for it there.

 

[Narender Kumar]

But in the customize Url screen.


It mentions that - "The specified domain or subdomain that resolves to the server IP address but is not used for hosting".

So if we add this domain - then it will be used for hosting. And as per the above statement. We shall not use this custom url for hosting.

Please clarify?

 

[Peter Debik]

I see, this can be misunderstood. It does not mean that the domain cannot exist on the server. It means that when you use it for the login page, you cannot at the same time use it for a website, because it is connected with the Plesk panel webserver in that case. You can add it with "Add Domain" and use it to login.

 

[Narender Kumar]

It did not work.. i am getting certificate error. As custom url. when I am trying. It's resulting into certificate error. Either the certificate assigned to domain which I created has not properly mapped to plesk custom url.. Not sure, how the newly created certificate under the newly set up domain certificate can be mapped for custom url.

 

[Peter Debik]

I am not sure why it does not work here. It is a very simple, straight-forward process. Exactly like described in https://support.plesk.com/hc/en-us/articles/12377745012247-How-to-customize-Plesk-URL. I did test it this morning on a test installation before responding to this thread.

If it does not work in your environment, could you please contact Plesk support on it and let them do it for you or check why it does not work there?

https://support.plesk.com