Applicable to:
- Plesk for Linux
- Plesk for Windows
Question
When logging in to Plesk using server's IP address (e.g. https://203.0.113.2:8443 or https://203.0.113.2), an SSL warning appears in a web-browser.
Is it possible to secure a Plesk IP address with an SSL certificate (Let's Encrypt / other certificate authorities)?
Answer
Plesk IP address cannot be secured with a Let's Encrypt certificate, as Let's Encrypt does not support securing IP addresses. For more information, visit this Let's Encrypt thread.
In order to secure a Plesk IP address, it is required to purchase a certificate from Certificate Authorities that provide such an option. An example of such certificate is OrganizationSSL certificate by GlobalSign, which allows securing public IP addresses. The paid certificate can then be installed as per the KB article:
Comments
2 comments
it's possible to secure the private Plesk portal so it does not appear the unsecure login?
I was secured by lets encrypt due to some recent changes it becomes unsecure.
Hi,
Assuming, your desire to secure the server's IP address derives from it being used to access Plesk (possibly due to using CDN), please note you could change the entry point to Plesk to be:
https://plesk.example.com:8443
And then use a free SSL certificate as provided over Plesk by LE.
To achieve this, you should:
Create a subdomain 'plesk.example.com' and set its Hosting Type as No Hosting in Domains > plesk.example.com > Hosting Settings > the Change link near Hosting Type > the No web hosting option.
Please refer to the following guide for details: Administrator's Guide: Hosting Types:
https://docs.plesk.com/en-US/obsidian/administrator-guide/website-management/websites-and-domains/hosting-settings/general-settings/hosting-types.72051/#domains-without-web-hosting
Please note that plesk.example.com should globally resolve to the Plesk server's IP address.
After that, customize Plesk URL in Tools & Settings > Customize Plesk URL > switch to the The specified domain or subdomain that resolves to the server IP address but is not used for hosting option and place the plesk.example.com in the field below. Please see the following guide for details: Plesk Installation and Upgrade Guide: Customizing Plesk URL
https://docs.plesk.com/en-US/obsidian/deployment-guide/plesk-installation-and-upgrade-on-single-server/customizing-plesk-url.76455/
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