• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.

Search results

  1. J

    Issue Certificate is unknown (FTP)

    If you click "Certificate in Chain" and find that the Root certificate is DST Root CA X3 which expired on Sep 30, 2021, you are facing same issue as I was. Here is how I solved the issue on my AWS Lightsail server, which is based on blueprint "Plesk Hosting Stack on Ubuntu": A. On the server...
  2. J

    Issue Certificate is unknown (FTP)

    Peter, have you figured out the fix for the DST Root CA X3 expiry issue? I'm having same issue now, Feb 2022.
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