DDNS does not work

Felix 4

Hi,

I have a Natgate 4100 that has a problem that I can't solve.
I got an email a week ago that my DYNDNS had not been updated. I look in PfSense and see there is a green check mark, and then test via edit with save/update.

It turns out it is not updating as it should. I set it to log traffic and get the following error.
rc.dyndns.update: Curl error occurred: SSL certificate problem: certificate has expired

When I send the Update URL via a browser, it works fine, the Dyndns server is updated.

It has worked perfectly for years, until about a month ago.
What can I do to get it working again

In have version 24.11-RELEASE (amd64)
built on Sat Jan 11 17:11:00 CET 2025
FreeBSD 15.0-CURRENT

viragomann

@Felix-4 said in DDNS does not work:

When I send the Update URL via a browser, it works fine, the Dyndns server is updated.

And the browser doesn't complain about the certs validity?

So display the cert and verify it.

Felix 4

That's correct, the browser doesn't complain about anything and sends a return response back.
good with my IP

What do you mean by showing the certificate?

viragomann

@Felix-4
Some browser have an option to display the cert by clicking at the lock symbol.

You can also verify it with OpenSSL or some web services.

Felix 4

ok I'll look into it, thanks for the quick response, I really appreciate it ;o)

Felix 4

I have investigated it, and it turns out there was an exception in the browser so the certificate was ignored.

My solution, befor the certificate on the DydDns server being renewed, is to change https in the URL string to http. This will update correctly.

When the certificate is updated I will change it back to https.
Password is hash 256 so it should be ok to send.