I’m currently using https://ipv64.net/

Been using ddnss.de before that for some time, but they had some outages. No problems with ipv64 so far.

can I ask what is the advantage of radicale over nextcloud calendar sync?

plus, most of the mentioned cve’s state “versions before …”. Exposing a service to the internet always has a risk to it, keeping your service up-to-date is mandatory. Running behind a vpn can protect you, sure. But it also has to be practical. I don’t get why Jellyfin especially gets this kind of slaming. You’ll find similar records for any other software.

connection timeout doesn’t sound like ssl problem to me. is the webserver actually running? i think i read nginx in a different post, you might look for a running nginx process using

ps aux | grep nginx

If it is running, is the connection working with normal http:// on port 80?

unauthenticated playback: yes. enumeration: no

https://github.com/jellyfin/jellyfin/issues/5415#issuecomment-2825240290

i have a roku express 4k and pihole shuts it down completely. it has the jellyfin app, nothing else. works great. I only open up internet to update the app from time to time.

i use https://www.mailjet.com/ they gave a free tier that goes a long way for mails like that.