You can follow the guide here and in section "Step 2. Modify your Confluence server.xml file", add TLSv1.3 to the sslProtocols and sslEnabledProtocols attributes.
While the above-mentioned guide will enable direct SSL configuration in Confluence, best practice is to use a reverse proxy (such as Nginx or Apache) and do the SSL configuration in the proxy server, rather than in Confluence directly.
It looks like you're new here. Sign in or register to get started.
