domain alias redirect Question

Hi,
i would like to know if that what i want to do is possible with the domain alias function!
I have e.g. domain-a.com and domain-b.com.
domain-a.com is master and domain-b.com is the alias.
If i browse on domain-b.com i get redirected to domain-a.com
immidiately.
Is that possible?

thanks
Martin

You can create a .htaccess rule for this.
If match the domain-b.com redirect to domain-a.com