TrueNas - DDNS (Google Domains) & OpenVPN

[Atomes]

Hello,

Since two days I try to make the DDNS & OpenVPN work, I followed all the tutorials I could find but in the end it still does not work

Everything works at the beginning for the DDNS:

• I use google domains, I have my domain and sub-domain
• I go to TruNas - Services - Edit Dynamic DNS. I configure as indicated in this tutorial. Right Providers, Right Username & Password, SSL Checked. Service activated.
• Everything save, I go back to google domains I can see that the IP has been updated.

Nice ! Everything looks good !

But no. When I type in my browser the URL "my.domain.com" it doesn't work.

In the videos I saw they write their domain and adds :8080 (or another port) but does not explain why, which one to choose or if you have to redirect something from your modem. So I tried different things and different port but nothing works.

At the same time I was following this tutorial to use OpenVpn and at one point you have to redirect the external connections to a specific port and set it up directly from your modem (1196) So I thought there might be a connection. I also thought the problem was DNSSEC in google domains so I disabled it

• I tried to type "my.domain.com:1196" : The connection was reset
• I tried to type "https://my.domain.com:1196" : Secure Connection Failed
• I tried to type "my.domain.com:8088" : The connection has timed out

What can I do?

 

[Atomes]

Hey Guys! I have some news, from my router, I forward external port 8088 to internal port 443 and "https://my.domain.com:8088" works! (and the OpenVPN connection too)

Could someone explain to me why? (I'm really new at this) And if there is no security problem to do that?

 

[dark passages]

The router uses the port number to know what local IP it should connect you to.
This way you can access multiple machines, each on port 80.
I hope this answers your question.