How to generate two links for different domains for sharing files?

Seafile Server
1

Heya!

Im running Seafile Pro 7.1.4 and I set it up with a Dynu DDNS. I just found out that some sites like Facebook don’t allow links with Dynu domains but allow it with the free domain I got from my ISP. Because I might change my ISP I want to keep my Dynu domain as it is and would only like for Seafile to generate two links links for sharing files (one with Dynu domain and one with a domain from my ISP).
Here is how I have it now:

original
original744×289 8.48 KB

Hese is how I would like to have it:
i_want
i_want741×297 9.91 KB

Whats the best way to do this?

2

e.g. Nginx config for both domains. But links will only be created for the configured domain. Also uploading won’t work most probably from secondary domains but about that I am not sure.