htaccess re-direct from domain alias

[Dragen]

Hi.

I'm wanting to get a domain alias for one of my sub-domains, but my host says that I can only get a domain alias on my full domain name and not a sub-domain... Not sure if this is just my host, but hey.

 

What I wondering is, can I get htacces to determine the incoming url and re-direct depending on what it is?

for example..

I have a domain name: www.mydomain.com

A subdomain: www.sub.mydomain.com

and an alias: www.anotherdomain.com (which link to www.mydomain.com)

 

Then if someone goes to www.mydomain.com, it lets the user access mydomain.com, but if the user goes to www.anotherdomain.com, then have it re-direct to www.sub.domain.com.

 

I'm not sure if I can do this as I'm not brilliant at htaccess re-directs, so if anyone can help it'd be great!

thanks

[Dragen]

any ideas?

[Wuhtzu]

You can do this:

 

.htaccess: This will redirect all traffic to http://www.sub.domain.com

Redirect 301 / http://www.sub.domain.com/

 

index.php: This will redirect all trafic to http://www.sub.domain.com

<?php
header("Location: http://www.sub.domain.com");
exit;
?>

 

I don't know if the .htaccess method redirects if the user requests a page that does not exist like www.anotherdomain.com/page/that/does/not/exist.html. Chances are it will just throw a 404

[Dragen]

thanks wuhtzu.

I'm not wanting to re-direct everyone though. Because mydomain.com and anotherdomain.com will be pointing to the same place (mydomain.com) I want to re-direct just people who type in anotherdomain.com into the url.

 

could I perhaps do something like:

Redirect 301 http://anotherdomain.com http://www.example.com/newpage.html

or maybe:

RewriteCond %{HTTP_REFERER} !^http://(www\.)?anotherdomain.com/.*$ [NC]
RewriteRule ^.* htpp://www.sub.domain.com/ [L]

 

As already noted I'm not too brilliant with htacces, but hopefully what I've suggested is somewhat okay?

[Wuhtzu]

If you have these three domains all on the same server (at the same host using apache virtual hosts) and they each point at a folder with their name:

 

www.domain.com

/domain.com/

 

 

www.sub.domain.com

/sub.domain.com/

 

 

www.anotherdomain.com

/anotherdomain.com/

 

Then by placing a .htaccess-file in /anotherdomain.com/.htaccess with "Redirect 301 / http://www.sub.domain.com" will redirect users typing www.anotherdomain.com in the browser to www.sub.domain.com.

 

But if both www.domain.com and www.anotherdomain.com points at the same document root e.g. /domain.com/ you might get lucky with "Redirect 301 http://anotherdomain.com http://www.sub.domain.com" but I'm not sure, because some redirection might already be in use by your host.

[Dragen]

hmm.. yeah. the problem is they're both pointing to the same root and the sub-domain is on a different server..

 

I'll have to give it a try and let you know what happens!