JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. ssl_dh_size Size of the Diffie-Hellman key. ssl_dh_size = [512 | 768 | 1024 | 2048] Can be 512, 768, 1024, or 2048 bits. The default value is 1024. This key is not used for cipher suites available for export. Copyright © Cloud Software Group, Inc. All rights reserved.