Subdomain Redirect with parameter

[abm24]

Hi,

Let's say that I own the domain: xyz.com.

I want to redirect from a fake subdomain, such as:
[mywebsite.xyz.com...] to [xyz.com...]
[anotherexample123.xyz.com...] to [xyz.com...]

I also want it to ignore the subdomains:
www , cdn , uploaded
as they're my website reserved subdomains.

How do I do that with htaccess file?

thanks!

[jdMorgan]

This subject has been much-discussed here. I commend the WebmasterWorld "Site search" feature to you. Having reviewed those previous threads, please post your best-effort code and test results should you need further assistance. Our Apache Forum Charter (see link above) may be useful to you in getting the most from this forum.

Thanks,
Jim

[abm24]

As a matter of fact I did, but I can't make it ignore my reserved subdomains.

Here's what I got so far:
RewriteCond %{HTTP_HOST} ([^.]+)\.example.com [NC]
RewriteRule ^(.*) http://example.com/resolver.php?id=%1 [P]

[jdMorgan]

Add a RewriteCond at the top to exclude your subdomains, start-anchor your second RewriteCond's pattern, anchor your RewriteRule pattern, use an internal rewrite instead of a proxy-throughput (if possible), and always use the [L] flag unless you know why you don't want to. Do not use [NC] on hostnames, as they should always be lowercase, and should be redirected (in a separate rule) to force lowercase if they are not.

RewriteCond %{HTTP_HOST} !^(www¦cdn¦uploaded)\.example\.com
RewriteCond %{HTTP_HOST} ^([^.]+)\.example.com
RewriteRule ^(.*)$ /resolver.php?id=%1 [L] 

Important: Replace the broken pipe "¦" characters with solid pipe characters before use; Posting on this forum modifies the pipe characters.

Jim

[abm24]

Thanks Jim!