Detecting and Resolving ngrok Hostnames for Updating noip A and SRV DNS Record

In this article, we will guide you on how to detect and resolve ngrok hostnames for updating the noip A and SRV DNS records. Ngrok is a tool that allows you to expose a local server behind a NAT or firewall to the internet. Noip is a dynamic DNS service that maps a hostname to a dynamic IP address.

Why do we need to update the DNS records?

When using ngrok, the hostname provided by ngrok is temporary and changes every time you restart ngrok. This means that the previous DNS records pointing to the old ngrok hostname will no longer be valid. To ensure your server remains accessible via a custom domain or hostname, you need to update the DNS records with the new ngrok hostname.

Detecting the ngrok hostname

The first step is to detect the ngrok hostname. To do this, follow these steps:

1. Open your terminal or command prompt.
2. Start ngrok by running the following command: ngrok http 80 (replace 80 with the port number your server is running on).
3. Once ngrok starts, it will display a forwarding URL in the terminal. The ngrok hostname is the part after "Forwarding" and before ".io" or ".https". It will look something like this: http://abcd1234.ngrok.io.

Updating the noip A DNS record

Now that we have the ngrok hostname, we can update the noip A DNS record. Follow these steps:

1. Visit the noip website and log in to your account.
2. Navigate to the DNS records management page.
3. Locate the A record associated with the hostname you want to update.
4. Edit the A record and replace the IP address with the ngrok hostname.
5. Save the changes.

Once the DNS record is updated, your custom domain or hostname will now point to the ngrok hostname, allowing your server to be accessible via the custom domain.

Updating the noip SRV DNS record

If you are using ngrok to expose a service that requires SRV records, you will need to update the noip SRV DNS record. Follow these steps:

1. Visit the noip website and log in to your account.
2. Navigate to the DNS records management page.
3. Locate the SRV record associated with the service you want to update.
4. Edit the SRV record and replace the target field with the ngrok hostname.
5. Save the changes.

Updating the SRV record ensures that the service associated with the custom domain or hostname will now be directed to the ngrok hostname.

By following the steps outlined in this article, you should now be able to detect and resolve ngrok hostnames for updating the noip A and SRV DNS records. This will ensure that your server remains accessible via your custom domain or hostname even when using ngrok.

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