-In order to use a different certificate and private key for HTTPS,
-store the server certificate and any needed intermediate / CA
-certificates in PEM format in the file '/etc/pve/local/pveproxy-ssl.pem'
-and the associated private key in PEM format without a password in the
-file '/etc/pve/local/pveproxy-ssl.key'.
+pveproxy uses `/etc/pve/local/pveproxy-ssl.pem` and
+`/etc/pve/local/pveproxy-ssl.key`, if present, and falls back to
+`/etc/pve/local/pve-ssl.pem` and `/etc/pve/local/pve-ssl.key`.
+The private key may not use a passphrase.