Is there a guide to setting up multiple DDNS records?

[GuardYaGrill]

Evening y'all,

I got my Asus WRT Merlin router (RT-AX86U) setup with a domain an DDNS however, I'm thinking of getting a second domain from my registrar (Cloudflare), i curious if anyone here has experience setting up multiple DDNS records with cloudflare utilizing thier Asus routers? Currently i use this script that i stumbled upon in the past and so far it's been working great but their documentation doesn't really go in-depth for multiple domains.

Thanks!

 

[RMerlin]

Just configure a single DDNS, then add a CNAME record within your registered domain, pointing at the DDNS configured on your router.

 

[GuardYaGrill]

Just configure a single DDNS, then add a CNAME record within your registered domain, pointing at the DDNS configured on your router.

Wait, so all I have to do it add a CNAME from Domain #1 to Domain #2? I’m no networking expert but is it really that simple?

I’m think my post was unclear, I want to purchase a second domain and have my ASUS Router handle DDNS like it does my current domain, I couldn’t find much online in this regard, the GitHub link I attached in my original post is the script I currently use for DDNS.

 

[RMerlin]

Wait, so all I have to do it add a CNAME from Domain #1 to Domain #2? I’m no networking expert but is it really that simple?

I’m think my post was unclear, I want to purchase a second domain and have my ASUS Router handle DDNS like it does my current domain, I couldn’t find much online in this regard, the GitHub link I attached in my original post is the script I currently use for DDNS.

A CNAME is basically an alias. There are no real reason to update two different DDNS unless for some reason you don't trust the availability of one DDNS provider, or you want to hide the first DDNS hostname from the second domain.

So, for a concrete example:

- DDNS is currently myhome.mooo.com, through afraid.org
- Your new Cloudflare domain is mypersonalhome.com

- In Cloudflare, you have the following CNAME:

myhome.mypersonalhome.com. CNAME myhome.mooo.com

Your router will keep myhome.mooo.com updated through DDNS.

Now, myhome.mypersonalhome.com will always point to myhome.mooo.com, which will point to the correct IP address.