What Is Subject Name Certificate?

The subject of the certificate is the entity its public key is associated with (i.e. the “owner” of the certificate). As RFC 5280 says: The subject field identifies the entity associated with the public key stored in the subject public key field.

How do I change the subject alternative name on a certificate?

To add a Subject Alternative Name

Select SSL Certificates and then select Manage for the certificate you want to change. Select Change Subject Alternative Names . For Add a domain, enter the SAN you want to add and then select Add.

What is subject alternative name in certificate?

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 many subject alternative names can a certificate have?

Comodo’s limit is 2000. However these stated limits don’t always match what we can measure in the wild... The majority of certificates have just 2 alt-names . This is usually because they contain both a top level domain (ie, example.com) and either a wildcard (*.

Is subject alternative 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.

How do you specify subject alternative name?

1. Open the hosts. ...
2. Add the loop back addresses and the host names. ...
3. Verify if the hosts were added, by pinging each host in the Command prompt. ...
4. Create a copy of the pscpki.

What is a valid certificate name?

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. ... The common name is technically represented by the commonName field in the X.

How can I get subject certificate?

1. Run the following command to get the issuer of the certificate by openssl: openssl x509 -noout -in <certificate file name with full path> -issuer. For example: ...
2. Run the following command to get the subject of the certificate by openssl: openssl x509 -noout -in <certificate file name with full path> -subject.

What is certificate name?

Certificates are specific to the Common Name that they have been issued to at the Host level . The Common Name must be the same as the Web address you access when connecting to a secure site.

What is DNS name in certificate?

DNS names: this is usually also provided as the Common Name RDN within the Subject field of the main certificate . Directory names: alternative Distinguished Names to that given in the Subject. Other names, given as a General Name or Universal Principal Name: a registered object identifier followed by a value.

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.

What is SANs in certificate?

Subject Alternative Names or SANs allow you to secure multiple domains from one SAN SSL certificate. SANs are additional domain names added to an SSL certificate. SAN certs come in two validation types: domain validated (DV) and organization validated (OV). ...

What is an 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 can I write my name in certificate?

1. —–#1) It can be their formal name if it’s a formal award, a nick-name or go-by name for an informal award. ...
2. —–#2) Include nothing before their name: no rank, no honorific, no courtesy title.

Does CERT name matter?

An SSL certificate is must be associated with one or more host names . Selecting the correct names is very important, because the certificate will be valid only if the request matches the host name (or host names) associated with the SSL certificate.

How do I find my CN certificate name?

1. Common Name (CN) We can formulate Command Name like below. ...
2. Subject Alternative Name. Check Common Name In Firefox. ...
3. Secure Connection. Click More Information.
4. Click `More Information` Click View Certificate.
5. Click `View Certificate` ...
6. Common Name.