Point a subdomain with CNAME to a DDNS subdomain?

cname-record subdomain domain network-attached-storage synology

Solution 1:

I think I need to draw a diagram to understand what you're doing here, but to be honest, point your CNAME to the proper A record for the destination. Don't chain CNAMEs.

RFC1034 allows for chaining in a technical sense, but it is simply poor practice.

A similar question was asked previously, and it's worth looking at the discussion: Is a CNAME to CNAME chain allowed?

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