with telnet/ssh/web.

Thanks to ipv6, tunnel by he.net.
And datapipe6.c, lol.

As nginx mod_proxy doesn’t support ipv6 upstream, here is the workaround:
datapipe6 localhost 56789 2001:da8:200:900e:200:5efe:a66f:480c 80
And nginx config:

server {
listen 80;
server_name zzxy.feuvan.net;

location / {
proxy_pass http://localhost:56789;
proxy_set_header X-Real-IP $remote_addr;
proxy_cache_valid 10m;
}
location ~* .(jpg|jpeg|bmp|png|gif|mp3)$ {
proxy_pass http://localhost:56789;
proxy_set_header X-Real-IP $remote_addr;
proxy_cache two;
proxy_cache_key “$scheme$host$request_uri”;
proxy_cache_valid 600m;
}
}

Cernet sux.