Hello Raul Guchinife,
Thank you for posting in Q&A forum.
Is your Linux server in the domain or in the workgroup?
If the linux server is not in the domain, you can try to use Network Device Enrollment Service (NDES), it is a sub role under Certification Authority.
Active Directory Certificate Services (AD CS): Network Device Enrollment Service (NDES)
https://social.technet.microsoft.com/wiki/contents/articles/9063.active-directory-certificate-services-ad-cs-network-device-enrollment-service-ndes.aspx
If the linux server is in the domain, you can try to use Certification Authority Web Enrollment, it is a sub role under Certification Authority.
Certification Authority Web Enrollment Guidance
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/hh831649(v=ws.11)
Hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou
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