Online backup solution for a NAS.

[MassiveJim]

All of my data is on my home NAS. Which is a custom built affair running nas4free.
Currently have about 6tb on it.

It seems that I can't use backblaze as they don't allow network drives (understandably)
What options do I have for online backup?

 

[Skynet5]

Extreme. But switch to freenas and use the aws s3 backup tool built in.