Tag: IONOS


  • Renew SSL certificate in Plesk with IONOS

    Log in to IONOS – you need three files:

    • private key (.key)
    • certificate (.cer)
    • intermediate certificate (_INTERMEDIATE.cer)

    If you don’t have the private key, Revoke Old Certificate, then Reissue Certificate – on Firefox this is a bit weird but it’ll download the key file but until you open it won’t complete the reissue.

    In Plesk go to Websites & Domains > SSL/TLS Certificates > Advanced Settings > Add SSL/TLS Certificate.

    Enter a certificate name:

    Scroll to “Upload the certificate files”:

    Browse each file (it doesn’t matter that they’re cer rather than crt), use _INTERMEDIATE.cer for the CA certificate, then click Upload Certificate.