.htaccess 404 for subdomains

how do you redirect all 404 traffic from a particular subdomain to a page? THX in advance!!

 

You should create a .htaccess file in your subdomain and add this line:

ErrorDocument 404 /404.html

Code (markup):

When a page is not found that will be redirected to 404.html which also should be available on your subdomain.

 

404 Errors on non-primary domains - Non-primary domains that point to your hosting account's root do not require any special configuration. For example, if you used this .htaccess file:

ErrorDocument 404 /notfound.php

Code (markup):