Previously, http://www.funfun.org.cn worked in my browser.
Then, I decided to add a CDN on top of it. So I added a CNAME for www.funfun.org.cn to funfun.org.cn.w.kunluncan.com. As a result, ping www.funfun.org.cn showed well
PING funfun.org.cn.w.kunluncan.com (117.131.204.76): 56 data bytes
64 bytes from 117.131.204.76: icmp_seq=0 ttl=38 time=47.667 ms
...
However, http://www.funfun.org.cn returned 403 Forbidden: You don't have permission to access the URL on this server. Powered by Tengine
Does anyone know how to fix it?
Edit 1:
In the origin server, sudo ufw status returns:
Status: active
To Action From
-- ------ ----
Nginx HTTP ALLOW Anywhere
22 ALLOW Anywhere
Nginx HTTP (v6) ALLOW Anywhere (v6)
22 (v6) ALLOW Anywhere (v6)
