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What is subject alternative name in SSL certificate?
The Subject Alternative Name (SAN) is an extension to the X. 509 specification that allows users to specify additional host names for a single SSL certificate. The use of the SAN extension is standard practice for SSL certificates, and it’s on its way to replacing the use of the common name.
Can I add subject alternative name to existing certificate?
Subject Alternative Names (SANs) are additional, non-primary domain names secured by your UCC SSL certificate. After your UCC certificate is issued, you can add or remove Subject Alternative SANs at any time. Note: Changing your SANs generates a new certificate, which you must install on your server.
Is Subject Alternate name Required?
Yes, you need to include each of the subject alternate names and the subject/common name in the Subject Alternate Names section of the CSR. Some certificate authorities will allow you to update a certificate to add new SANs to it, but this always requires an updated CSR.
What is the SSL certificate subject alternative name ( San )?
What is the SSL Certificate Subject Alternative Name? 1 SAN certificates. A SAN certificate is a term often used to refer to a multi-domain SSL certificate. An SSL certificate with more than one name is 2 SAN restrictions. 3 SAN certificates and DNSimple. 4 Background.
What does the common name in SSL mean?
Table of Contents. The Common Name (AKA CN) represents the server name protected by the SSL certificate. The certificate is valid only if the request hostname matches the certificate common name. Most web browsers display a warning message when connecting to an address that does not match the common name in the certificate.
Can you specify the content of a SSL certificate?
The ability to directly specify the content of a certificate SAN depends on the Certificate Authority and the specific product. Most certificate authorities have historically marketed multi-domain SSL certificates as a separate product. They’re generally charged at a higher rate than a standard single-name certificate.
What do you mean by multi-domain SSL certificate?
In practice, when using the term SAN certificates, we are referring to an SSL certificate that has the ability to cover multiple host names (domains), also called multi-domain SSL certificate.