htaccess show holding page

Hi I want to show a holding page to outside users but from my machine gain access to the site. Can I do this with htaccess?

From stackoverflow

• RewriteEngine On 
  RewriteCond !REMOTE_ADDR=127.0.0.1
  RewriteRule .* /holdingPage.html [R,L]
  

  Replace 127.0.0.1 with your machine's IP.

  http://httpd.apache.org/docs/2.2/howto/access.html

  http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html

  vartec : Well, it does point you to SetEnvIf and Rewrite