Subject Alternative Names let you protect multiple host names with a single SSL certificate. Subject Alternative Names allow you to specify a list of host names to be protected by a single SSL certificate. The Subject Alternative Name extension has been a part of the X509 certificate standard since before 1999, but only recently achieved widespread use with the launch of Microsoft Exchange Server 2007—which makes good use of Subject Alternative Names to simplify server configuration. What can you do with Subject Alternative Names?
Unlimited Server License. Most SSL certificates are licensed for use on one physical server, but DigiCert's unlimited server license lets you use your Unified Communications certificate on as many servers as you want. Simpler and easier to maintain than putting multiple IP addresses on your server and assigning a different certificate to each. Easy to modify. Within your DigiCert account area you can add, remove, or edit the names in your UC Certificate at any time. Trusted in over 99% of browsers and email clients. Save yourself the hassle of installing a root certificate on all your mobile devices.
Examples:
Secure multiple Exchange 2007 services (OWA, SMTP, Autodiscovery, ActiveSync, and Outlook Anywhere) with one UC Certificate. Using a DigiCert Unified Communications SAN Certificate greatly reduces the complexity of your server configuration because it allows you to run all services on one IP address.
Take advantage of our unlimited server licensing and reduce the cost of securing your main web site and your mail server by combining both server names into a single Unified Communications certificate.
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