A CA certificate is a PEM-encoded certificate issued by a Certificate Authority (CA) and used for verification of a server certificate. CA certificates must be in the PEM format and have the .pem extension.
You can manage your CA certificates the following ways:
To add a CA certificate, put the certificate file into the sernaInstallationPath/plugins/webdav/ca directory.
To remove a CA certificate, delete the certificate file from the sernaInstallationPath/plugins/webdav/ca directory.