Question Secure subdomain in Plesk via VPN or something like this

[Johnny9977]

I'm currently figuring out how I can secure some subdomains within Plesk so that I can only access them when I join a VPN or open a SSH tunnel.

I'm really not that good with this kind of stuff so if you have any ideas how I can lock out my subdomains from the internet like `jenkins.domain.de` or `gitlab.domain.de` I would appreciate if you share it with me.

I've did a lot by myself, configured a lot but this time I can't get it. You have to consider that I've a main domain like `domain.de` which still needs to be accessible from the internet.