RasPi Series {7} – Free DynDns providers (noip) with the FritzBox connect

How to set up a free Dynamic DNS for your home ...

    Inhaltsangabe
  1. Sign in to noip.com
  2. Setting up the Fritzbox and testing
    1. What now?
  3. The professional alternative to FritzBox

In the last post we learned what cronjobs are and how we can create timed automatisms. We wrote our own cronjob and learned how to add Python scripts to cronjobs.

This post will focus on what you can do if your hoster does not support DDNS. I have never used free DDNS provider yet but for this blog post, I will log in to a DDNS provider, enter the data in my FritzBox and test it. If you already succeeded in the previous posts of this tutorial series, you can skip this post.

Sign in to noip.com

On the homepage of noip.com you click on Sign Up and create an account.
After completing everything, click on Free Sign Up
You should now have received an email to activate your account, click on the activation link in the mail .
You will be prompted to create a username. You don’t need it. Cancel .
In the navigation you click on Dynamic DNS. Here you can see all the addresses pointing to your IP.
Currently there are no addresses. Click Create Hostname
Under Hostname you enter the desired subdomain name and deliberately change some numbers of the IP address , so you can check later if it worked.

Setting up the Fritzbox and testing

Then you sign up in your FritzBox and navigate to Internet ⇨ Shares ⇨ DynDNS
There you choose NO-IP and enter your access data from NOIP.com and confirm.
You can check with any IP checker if it has worked.
I use ipinfo.com

What now?

From now on, any connection to your created subdomain ends up on your router. In my case that would be the address http://raspi-series.ddns.net. If you put that in the browser, nothing will come because you have not set up a web server yet. We will come to that later.

The professional alternative to FritzBox

As you have seen above, the FritzBox can only manage a single DynDNS. If, like me, you have multiple Dynamic DNS addresses that point to your home, you would need to write a script and retrieve it automatically. You can read here, how to do that.

In the linked tutorial, you only have to make a change in the script. In the tutorial comes the line:

top_level_url = "https://dyndns.kasserver.com/?myip=" + current_ip

You change that in

top_level_url = "http://dynupdate.no-ip.com/nic/update?hostname=" + domain["domain"] + "&myip=" + current_ip

To the tutorial

Now you now how to create any number of subdomains and redirect them to your home network. You now have the ability to access your home network from the whole world.

In the next post I will explain what port forwarding is and how to use it correctly. It will be about how you can redirect the connections to your home network, directly to your Raspberry Pi, and I will make an SSH connection to my Raspberry Pi over the Internet, finishing the post by testing it.

Topics

DIY DNS DynDNS Raspberry Pi Tips

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