Teslamate: Noob question on the need for FQDN

[pieterr94]

I bought a Raspberry Pi especially for this project, so it is all new to me. Therfore, I have some questions I could not find answers for on the forum.

The docs state that if you want to make dashboards available to the internet you need two FQDN. (https://teslamate.readthedocs.io/en/latest/installation/docker_advanced.html)
I was wondering why this is necessary and how I should do this. Is it not enough if I just open the ports on my router and I go via the internet to my ip (xxx.xxx.xxx.xxx:4000)?

And if I buy two FQDN’s, since I do not have any. How do they get forwarded to my Raspberry Pi?
Thank in advance!!

[ArnoPW]

If you just open up ports 3000 and 4000 you may leak your Tesla account credentials so I wouldn't do this.
You need to obtain a domain name (or maybe something with a DDNS service) and have those point to your public IP for the desired hostnames.

[DrMichael]

You do not need to expose teslamate (on port 3000, you cannot protect it by user/password).
And you can set passwords (and users) in Grafana (port 4000).
Btw, afaik no credentials are store by teslamate, only the aquired token.