Redirecting to a subdomain without changing the url using htaccess

Question

I have the following url www.abc.xyz.com which redirects to www.xyz.com/abc and I am trying to create an htaccess file that will keep the url as www.abc.xyz.com but I am unable to do so with the following file

RewriteEngine on
RewriteCond %{HTTP_HOST} ^abc.xyz.com [NC]
RewriteRule ^/(.*)$ /abc/$1 [L]

what am I doing wrong here ?

Answer 1

Have this rule in DocumentRoot/.htaccess :

RewriteEngine on
RewriteBase /

RewriteCond %{HTTP_HOST} ^(www\.)?abc\.xyz\.com$ [NC]
RewriteRule ^((?!abc/).*)$ abc/$1 [L,NC]