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Make my IPv6 selfhosted service available on IPv4 network. (discuss.tchncs.de)

submitted 5 months ago by smileyhead@discuss.tchncs.de to c/selfhosted@lemmy.world

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My ISP provide me with good IPv6 connection with support of opening ports how I like. But IPv4 is behind a CGNAT and makes me unable to host a service on the legacy Internet.

Unfortunetely some of my friends I want to host (Jellyfin and Nextcloud) for does not have modern Internet connection, so I have to put some proxy.

Now I need suggestions of a solution. VPN on some VPS they would need to connection to is one of them, but it should be as simple for them to use as possible.

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[–] TCB13@lemmy.world 2 points 5 months ago* (last edited 5 months ago)

Fair enough yeah. :)

The OP can solve that potential security issue with this option: https://nginx.org/en/docs/http/ngx_http_realip_module.html#set_real_ip_from on the local server nginx:

http {
(...)
        real_ip_header    X-Real-IP;
        set_real_ip_from  [2a03::aaaac::1]; # Replace with the VPS IPv6 address.
}

This will make sure only the VPS is allowed to override the real IP.