Domain Setup - How to set 1 and 1 domain-name to your blogger

Buy your domain-name from the 1 and 1 company.
Login to your 1&1 account and your Blog account.

<Go to 1&1 Control Panel>
   1-Use your domain
   2-DNS settings
   3-A/AAAA Records
       [*] Other IP Address
       IPV4 Address 216.239.32.21
       Save > Yes
   4-Copy your domain-name 

<Go to Blogger Dashboard>
   5-At Settings under Publishing > click _Setup a 3rd party URL for your blog
       www.domain-name
   6-Save

<Go to 1&1>
   7-Select Subdomain > Add Subdomain
   8-Write subdomain [www] > save

<Go to Blogger>
   9-Copy the 2nd Subdomain
 10-Repeat step 7 & 8 

<Go to 1&1>
 11-Click the 1rst subdomain
 12-adjust destination
 13-DNS Settings
 14-[*] Cname

<Go to Blogger>
 15-Copy the destination for the subdomain www

<Go to 1&1>
 16-Paste in Alias
 17-[*] checkbox
 18-Save
 19-Do the same for the 2nd subdomain

<Go to Blogger>
 20-Save
 21-Edit (over your new domain)
 22-[*] Redirect
 23-Save

DONE