What is subject alternative name in CSR?

A Subject Alternative Name (SAN) SSL is a specific type of SSL that allows you to secure multiple domains/subdomains with just one SSL. If you are looking to secure just a single domain, you will want to generate a standard CSR. If you purchase a (mt) Media Temple SSL generating a CSR is not required.

How do you add subject alternative name in CSR?

Generate CSR specifying additional domains (SANs) Additional domains (Subject Alt Names) can be entered in the advanced options. Alternatively, you can generate such a CSR using OpenSSL. – Create an OpenSSL configuration file (e.g. req. conf) and fill out the details for your CSR.

How do you find the subject alternative name?

Browse to you Domain api.your-domain.com in your browser, click on the lock icon, and check the Cert’s details.

Checking your Subject Alternative Name (SAN)
Internally Signed Certs/Self-Signed Certs.
Publicly Signed Certs.

What is subject alternative name used for?

A SAN or subject alternative name is a structured way to indicate all of the domain names and IP addresses that are secured by the certificate. Included on the short list of items that are considered a SAN are subdomains and IP addresses.

How can I generate CSR Online?

OpenSSL CSR Wizard. Our OpenSSL CSR Wizard is the fastest way to create your CSR for Apache (or any platform) using OpenSSL. Fill in the details, click Generate, then paste your customized OpenSSL CSR command in to your terminal. Note: After 2015, certificates for internal names will no longer be trusted.

Is subject alternative name mandatory?

2 Answers. 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.

Is CSR private key?

The private key is a separate file that’s used in the encryption/decryption of data sent between your server and the connecting clients. A private key is created by you — the certificate owner — when you request your certificate with a Certificate Signing Request (CSR).

Can I generate CSR from any server?

You can generate the CSR from any server you like, but the final certificate must then be installed on the same server. (The private key that matches the CSR is on that server.) You could then export the certificate including the private key, and install on another server.

Is it safe to generate CSR Online?

However, these online generators pose a serious risk to the security of your certificate and therefore your business. By generating a CSR with an Online CSR Generator, a private key must also be generated. Ideally this key should be kept private and controlled by you.

What is a alternative name?

An ‘alternate name’ or ‘nickname’ is a name that you go by or give to a friend that is not your own or their own name.

How to sign a CSR with alt names?

Signing a CSR with alt names is described here well: https://www.feistyduck.com/library/openssl-cookbook/online/ch-openssl.html#creating-certificates-valid-for-multiple-hostnames In short words, you create a something.ext file containing just the alt names:

How to add Sans to.csr in OpenSSL?

For everybody, who doesn´t like to edit the system-wide openssl.conf, there´s a native openssl CLI option for adding the SANs to the .crt from a .csr. All you have to use is openssl´s -extfile and -extensions CLI parameters.

How to generate CSR from Windows Server with San?

Please refer to the steps below on how to generate CSR from Windows Server with SAN (Subject Alternative Name) as SSL certificates generated from IIS do not contain a SAN

Where can I find the Subject Alternative names?

For example, if you have a certificate request file called HP_VC.csr and you want the subject alternative names to be vc1, vc2, vc1.domain.com, vc2.domain.com, 192.168.1.1, and 192.168.1.2 the command would be: The certificate in HP_VC.cer will contain the SAN attribute.

What is subject alternative name in CSR?