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Can there be multiple certificates for the same domain?
You absolutely can use one SSL certificate for multiple domains — or one SSL certificate for multiple subdomains in addition to domains. For securing multiple domains with a single SSL certificate we use either a multi domain/UCC/SAN certificate or a multi domain wildcard SSL certificate.
Can a CERT have multiple common names?
The common name can only contain up to one entry: either a wildcard or non-wildcard name. It’s not possible to specify a list of names covered by an SSL certificate in the common name field. The Subject Alternative Name extension (also called Subject Alternate Name or SAN) was introduced to solve this limitation.
Are there any computers on the same domain?
However, the new desktop’s computer name is exactly the same as another computer. Both computers have the same name, are on the same subnet, and are on the same domain. Each computer has a unique IP address. Both are working fine.
What happens when you add a second machine to a domain?
To keep the second machine on the domain, take the first machine from the domain, rename it and add it back to the domain under the new name. The machine name is the same, but the SID changes when you add a new computer with the same name as the old one. The SID is what everything in AD is tied to, not the same.
What happens when you install two SSL certificates on the same domain?
When you install two SSL certificates on the same domain it forces the server to decide which one to serve. In some cases the server will send the most recently installed certificate to visiting browsers assuming it’s likely the most secure.
How to remove two computers from the same domain?
If you are going to remove one of the computers from the domain I would logon to the computer locally as admin with it not connected to the domain and then join it to a fictitious workgroup (removing it from the domain) and rename at the same time.