Creating a CNAME on your DNS

The specific platform address to point at depends on where your account is being hosted. 

GoDaddy.com

See the help page in the GoDaddy support area:

Add a CNAME record | Domains - GoDaddy Help

Edit a CNAME record | Domains - GoDaddy Help

1. Make sure you set the Alias as the subdomain you want to use. For example, if you picked secure.mydomain.com as your WaaS site address, enter secure as the entry under Name.
2. Enter the relevant cloudapp.net node address under Points to Host Name.

ix web hosting

1. Log in to your account at ix web hosting.
2. Click Manage below the Hosting Account section.
3. On the left side, click the domain you'd like to use with your WaaS site.
4. Next to DNS Configuration, click EDIT.
5. Click Add DNS CNAME Record.
6. Under Name, enter only the subdomain you want to use. For example, if you picked www.mydomain.com as your WaaS site address, enter www as the entry under Name.
7. Enter the relevant cloudapp.net address under Data.
8. Click Submit.

1and1

1. Log in to your account at 1and1.
2. If it's not already selected, click the Administration tab.
3. Click Domains. The Domain Overview page appears.
4. From the New drop-down menu, select Create Subdomain. (If you've already created a subdomain for your WaaS site address, skip to step six.)
5. Enter only the subdomain you want to use, and click OK. For example, if you chose www.mydomain.com for your WaaS site address, you should enter www here.
6. Select the checkbox next to the subdomain that you will be using. (Example:www.mydomain.com)
7. From the DNS menu, select Edit DNS Settings.
8. Click the radio button next to CNAME.
9. Enter the relevant cloudapp.net node address next to Alias.
10. Click OK.

EveryDNS.net

1. Log in to your account at EveryDNS.net.
2. On the left side, click the domain you'd like to use with your WaaS site.
3. Since EveryDNS.net is your hosting service, not your domain registrar, be sure your domain points to EveryDNS.net's nameservers. This will allow your CNAME record configuration to take effect.
4. Below Add a Record. You can create your CNAME record.
5. Next to Fully Qualified Domain Name, enter only the subdomain you want to use. For example, if you picked www.mydomain.com as your WaaS site address, enter www as the entry next to Fully Qualified Domain Name.
6. Select CNAME as the Record Type.
7. Enter the relevant cloudapp.net node address as the Record Value.
8. Click Add Record.

Yahoo!SmallBusiness

1. Log in to your account at smallbusiness.yahoo.com.
2. Click Domain Control Panel below the domain you want to use with your WaaS site.
3. Click Manage Advanced DNS Settings.
4. Click Add Record.
5. In the Source field, enter only the subdomain you want to use. For example, if you designated www.mydomain.com as the address of your WaaS site, enter www in the Source field.
6. Enter the relevant cloudapp.net node address in the Destination field.
7. Click Submit.

No-IP

1. Log in to your account at No-IP.
2. On the left side, click Host/Redirects.
3. Click Manage underneath Host/Redirects.
4. Click Add for a new entry, or click Modify and skip to step six for an existing entry.
5. Enter the hostname (example: www from www.mydomain.com), and select your domain name.
6. Select DNS alias CNAME at the host type.
7. Enter the relevant cloudapp.net node address as the Target Host and click Modify.

DNS Park

1. Log in to your account at DNS Park.
2. On the left side, click DNS Hosting.
3. Click the domain you'd like to use with your WaaS site.
4. Since DNS Park is your hosting service, not your domain registrar, be sure your domain points to DNS Park's nameservers. This will allow your MX record configuration to take effect.
5. Click Alias Records.
6. Under Host Name, enter only the subdomain you want to use. If you picked www.mydomain.comas your WaaS site address, enter www.
7. Under Destination Name, enter the relevant cloudapp.net address.
8. Click Add Alias.

Other hosting services

1. Log in to your account on your hosting service's website, and go to the DNS management page.
   Since CNAME records are special Domain Name Service (DNS) records, they may be in sections such as DNS Management or Name Server Management. You may have to enable advanced settings to create a CNAME record.
2. Delete existing CNAME entries for the address you want to use with your WaaS site.
   Before entering a new CNAME record to point to Forms On Fire, you should first delete any existing entries for the same alias. 
3. Use the information in the following table when you create your CNAME record.
   If your service requires you to enter server information directly into the DNS tables, the entry below must have a type of CNAME associated with them.