Hi,

I have registered and created domain. I uplifted web server on my network on port 80 (over arduino) and enabled forwording port 80 on router. I can access this web server from outside my network but the problem is when public IP address of my router is changed.
So I would like to access my web server anytime (even when public IP of my router is changed).
What next? Is it just enough to download Dynu IP Update Client on my computer. Does this program configure my router with my parameters?
Do I have to configure router myself?

BR, Luka

Yes, downloading and using the IP update client alone will keep your domain name mapped to the most current IP address of your router. You do not need to configure your router to keep the domain name mapped to its latest IP address. For instructions on how to configure the IP update client software, you may refer to the below:

https://www.dynu.com/DynamicDNS/IPUpdateClient/WindowsClient

Hi,

Thanks for answer!
So, as i understood, as long as my PC is on, this tool will update ip address of my router within my domain?
What when my PC is off? Is there any alternative aplication to be run all the time?
For ex, my arduino is ON and wired on internet all the time..

BR, Luka

Yes, as long as your computer is on, the client software will keep the hostname mapped to the current IP address of your hostname.

You should be able to write a small function for Arduino to send the IP update requests:

void update_dynudns()
{
    client.connect("api.dynu.com", 8245) ;
    client.print(F("POST /nic/update?hostname=YOURHOSTNAME&password=YOURPASSWORD));
    client.stop();
}