To point your domain to our servers, you'll go to your domain registrar and edit your DNS settings. They should let you add an A record or CNAME record (depending on your situation listed below).
If instead they only let you change the name servers, you can use a service like 1984hosting's FreeDNS to create the records for your domain, and point your name servers to them.
Create a DNS record for your domain based on the type of domain you're using:
|Domain||Record type||Value / Data|
|Top level (e.g. example.com)||A-record||22.214.171.124|
|Top level - IPv6 (optional)||AAAA-record||2001:4800:7818:103:be76:4eff:fe01:76f9|
|Subdomain (e.g. blog.example.com)||CNAME||host.writeas.org|