Magento - Admin Redirect to Frontend Homepage

I have had this problem a couple times. There are three possible resolutions:

1. Go to Configuration > General > Web and set "Redirect to Base URL if requested URL doesn't match it" to NO
1. the problem with this is that your canonicals will then need to be set to optimize seo and remove duplicate search engine sites lowering seo
2. Instead of typing domain/admin type www.domain/admin
3. Follow Step 1 and then add this to your htaccess

RewriteEngine on
RewriteCond %{HTTP_HOST} ^yoursite\.com
RewriteRule ^(.*)$ http://www.yoursite.com/$1 [R=301,L]










I would select 3