DNS and CNAME Records

Yes, mycompany.com will be the name of the zone. Then you just add a CNAME record leave the first line blank because you want the root zone name to point to the new address. This will not cause a problem unless you have other DNS records such as mail.mycompany.com or www.mycompany.com. In which case you then have to set up all of thier respected DNS entries also for your internal addresses, including MX records for mail servers.

Scratch that, you probably don't need to setup MX records, just A records and CNAME records. It will look something like this:

Forward Lookup Zone: mycompany.com
NAME:                               Type:                      DATA:
(same as parent folder)    CNAME                   host.website.com
www                                CNAME                   host.website.com
mail                                    A                            192.168.X.X

etc.

This:

> (same as parent folder)    CNAME                   host.website.com

Cannot be a CNAME.

Violates RFCs, and the vast majority of DNS servers simply will not permit it.

It must be a Host (A) record and therefore must use an IP address.

Chris

Yes, actually that is true you will need to get the IP address of host.website.com and use an A record.