Question New Here.. Need help from Guru's

[Sammie]

I want to create a sub domain that I will redirect to my blogspot site. I know how to do the blogspot part, but i don't know how to create the sub domain exact method. a sub domain with CNAME record and ghs.google.com it looks tricky to me here. so please if there is any tutorial video that you guru's know or you can tell me here on this forum. I know it's not that difficult but it's my first time. so please.

Thanks for giving your time.