I have a website that is accessible only by IP address. How can I access a subdomain of that website?
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I'm using Ubuntu 10.04 by the way. – Nathan Osman Jul 21 '10 at 16:44
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1One possible workaround is to use [xip.io](http://xip.io) per [this answer](https://stackoverflow.com/a/37370422). – Jan 01 '18 at 15:51
3 Answers
It depends what you mean by "subdomain" and what you mean by "accessible only by IP address".
If, say, you're trying to access google.com
and maps.google.com
, but for some reason your local DNS server doesn't have an entry for google.com
, then you may as well query it for maps.google.com
as they're separate entries (usually).
If you don't have a domain name for the website but instead only an IP address, then what does a "subdomain" of that mean? Say you're browsing to http://87.87.87.87
, what is a "subdomain" of that?
Finally, it is usually pointless trying to reach a subdomain by connecting to the same IP address, as subdomain matching at the webserver-level is done by looking at the headers sent by the client, which wouldn't contain any subdomain information if you're connecting by IP address.

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You have to add this IP address to your webserver as well if you are putting data into a particular directory and sharing the webserver with another website. If not, then you are just going to get the primary website and the subdomain will not do any good.

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