Foros del Web - Problema redirección DNS

Hola a todos,
os explico:
Yo tengo unos cuantos dominios registrados en godaddy y me decidí por el hosting de dreamhost.

Me han dicho que tengo que hacer lo siguiente , cambiar las DNS y apuntarlas hacia estas direcciones:

You need to add the following A records for *****.com:

A 208.113.168.124
ftp A 208.113.168.124
mysql A 208.97.186.241
www A 208.113.168.124

Para el primer no he tenido problemas, pero en el ftp y www(mysql no tengo en godaddy, lo hago directamente en dreamhost), no me deja, me da el siguiente error:

Please enter a valid host name for the Points To Host Name field.

To create a new CNAME record for your domain, please complete the Alias Name, Points To Host Name, and TTL fields below; then click "Continue."
Note: The Points To Host Name should be defined as your domain name (i.e., "www.domainnamegoeshere.com") or "@" (Entering "@" will automatically insert your domain name as the host name for the CNAME Record). The Alias field should be the subdomain of your top-level domain the CNAME record points to your domain.

For example: If you want the CNAME record to point "www" within your domain to "www.domainnamegoeshere," you should enter "www" in the Alias field and "www.domainnamegoeshere.com" in the Points To field. If you want the CNAME record to point "email" within your domain to "email.domainnamegoeshere," enter "email" as the Alias and "email.domainnamegoeshere.com" as the Points To Host Name.

En dreamhost me atienden pero de momento no avanzo, agradecería su ayuda.

Muchas gracias.