Both domains indicate via a 3rd party whois server that the registrar is dreamhost. That means you would need to set the nameservers at dreamhost.
Go to manage domains the dreamhost panel, click the DNS link under the domain name and make certain the nameserver blanks are the 3 dreamhost name servers i listed above.
FWIW… as for servering up the misspelling of the domain you are better off to do that as a 301 redirect, and not a mirror. Mirror’s are frowned upon for this sort of thing, the idea is that you should have good content once, and if you have other domain names for whatever reason they should be re-directed rather than mirrored.