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Is it possible to have a SSL certificate for access directly to an IP, and not through a hostname? Eg, can I purchase an SSL certificate to make https://1.2.3.4/ work without giving a security warning?

davr
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2 Answers2

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I haven't actually tried this, but I assume that if you create a Certificate Signing Request (CSR) with the Common name of 1.2.3.4 it should at least generate.

Whether or not a web browser will accept it is a different story, but if you're accessing the resources via something other than a web browser then your milage may vary.

Mark Henderson
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    I can confirm it's possible, and will be accepted. Now getting a real CA to rubberstamp the CSR, that's going to be another story. I don't know of any CA that will do it. – Chris S Apr 15 '10 at 01:07
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Yes, it is possible and several CAs will issue certificates to IP addresses. You will somehow have to demonstrate that you own or control the IP address.

Robert
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