The DDNS address is not set in the OpenVPN configuration file.
I have set up DDNS to get the address of "***.tplinkdns.com".
I have configured OpenVPN.
I exported the configuration file.
However, the IP address is written in the remote field of OpenVPN-Config.ovpn.
It is correct that the address of ddns is written in the configuration file.
If the IP address is written, the meaning of setting ddns is lost.
<OpenVPN-Config.ovpn>
client
dev tun
proto udp
float
nobind
cipher AES-128-CBC
comp-lzo adaptive
resolv-retry infinite
remote-cert-tls server
persist-key
persist-tun
remote xxx.xxx.xxx.xxx 1194 <- ddns address is better