Convert SSL Certificate formats
The LiquidFiles appliance uses PEM format for it's certificate. If your CA is asking for a server type you can specify either Nginx, Apache or PEM as the format.
If your certificate is in another format, the easiest is probably to search the web for something like: Certificate DER to PEM, and you will find several options where you can convert the certificate. The certificate is public so there's no harm doing this on public websites.
If your certificate is in PFX/PKCS12 format (that is one file that includes both the certificate and the private key), please go to Admin → Certificate, and click on "Upload PFX/pkcs12" to upload and install the certificate and key into LiquidFiles.
The rest of these examples use the OpenSSL command line program to convert certificates to PEM format.
Convert DER to PEM
openssl x509 -inform der -in certificate.cer -out certificate.pem
Convert P7B to PEM
openssl pkcs7 -print_certs -in certificate.p7b -out certificate.pem
When completed, please continue to the Certificate Installation guide..