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htaccess redirect and wildcard DNS
redirecting a user generated subdomain name to a specific page
icarus

10+ Year Member



 
Msg#: 3396484 posted 1:40 am on Jul 17, 2007 (gmt 0)

Hi,

I'd appreciate any advice on this :)

We're using wildcard DNS on a site and I'm wanting to redirect like so:

fred.site.com

to display the page:

[site.com...]

The username in the above example, "fred", isn't something we'll have control over - the user will select that when they sign up.

Thanks in advance!

 

icarus

10+ Year Member



 
Msg#: 3396484 posted 1:47 am on Jul 17, 2007 (gmt 0)

Whoops, looks like I need to search a little better - found a stack of other posts that most likely have the answer I need. Please excuse the false alarm :).

jdMorgan

WebmasterWorld Senior Member jdmorgan us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 3396484 posted 2:12 am on Jul 17, 2007 (gmt 0)

If you're writing a rewrite rule to 'map' username-subdomains to directories, then you *will* have to take control over those usernames. They will have to be:

valid HTTP subdomain strings,
valid HTTP URL-strings, and
valid *nix filepath strings.

I strongly suggest that you accept *only* username strings containing lowercase letters, numbers, and hyphens, and further, that the username must start with a letter and end with a letter or a number. That will keep you out of trouble with the various protocol and filesystem requirements.

You can code the mod_rewrite accordingly, but the new-user sign-up script must enforce the "rules" above, so as not to allow creation of accounts that cannot be accessed.

Jim

[edited by: jdMorgan at 2:19 am (utc) on July 17, 2007]

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