/services_dyndns_edit.php: phpDynDNS: (Unknown Response)

amello · Feb 25, 2022, 9:48 PM

Folks,
Last night I had to reboot my ISP (at&t) router and got new IPs - first time in an year+.
My DNS provider is google domains and all my dynamic IPs are (were) with the old IP. When forcing renew got the error in subject on my log.
Rebooting, deleting the entries from the service didn't help. The new ones created now have a 0.0.0.0 IP.
Installed ddclient on ubuntu and worked fine.
Any help to troubleshooting this issue is appreciated.

This happened from two different locations by the way, specs below:

First:

System Netgate pfSense Plus
BIOS Vendor: American Megatrends Inc.
Version: 1414
Release Date: Tue Sep 23 2014
Version 22.01-RELEASE (amd64)
built on Mon Feb 07 16:37:59 UTC 2022
FreeBSD 12.3-STABLE

The system is on the latest version.
Version information updated at Fri Feb 25 16:45:11 EST 2022
CPU Type Intel(R) Core(TM) i5-3330 CPU @ 3.00GHz
Current: 3000 MHz, Max: 3001 MHz
4 CPUs: 1 package(s) x 4 core(s)
AES-NI CPU Crypto: Yes (active)

2nd

System pfSense
BIOS Vendor: Dell Inc.
Version: A17
Release Date: Wed Nov 16 2016
Version 2.6.0-RELEASE (amd64)
built on Mon Jan 31 19:57:53 UTC 2022
FreeBSD 12.3-STABLE

The system is on the latest version.
Version information updated at Fri Feb 25 15:50:57 EST 2022
CPU Type Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz
4 CPUs: 1 package(s) x 2 core(s) x 2 hardware threads
AES-NI CPU Crypto: No

FSC830 · Feb 25, 2022, 9:54 PM

Hi,
first of all you should edit your post and remove/mask serial and device ID.
Second: did your ever check if your dyndns command for renewing the IPs is working?
Is it exactly the same command when using your Linux host?

Regards

amello · Feb 25, 2022, 10:04 PM

@fsc830 said in /services_dyndns_edit.php: phpDynDNS: (Unknown Response):

Hi,
first of all you should edit your post and remove/mask serial and device ID.

Ok, thanks, done.

Second: did your ever check if your dyndns command for renewing the IPs is working?
Is it exactly the same command when using your Linux host?

From pf I only can see the entry in the log that I have in my subject.

That was configured over an year ago and worked. Now that the IP changed, it is not working. Even deleted and recreated the entries in pf to no avail.

FSC830 · Feb 25, 2022, 10:08 PM

You should see your setting in services - ddns menu (not sure about the exact wording)!?

At least at my pfSense I can see and edit the command for updating the ddns service.

Regards

amello · Feb 25, 2022, 10:15 PM

@fsc830 said in /services_dyndns_edit.php: phpDynDNS: (Unknown Response):

You should see your setting in services - ddns menu (not sure about the exact wording)!?

At least at my pfSense I can see and edit the command for updating the ddns service.

Regards

Yes, correct. It is there and with IPs 0.0.0.0 (the new one created for test) and N/A the old one (already in my config for years). In fact I've moved the install to another location in Jan and it did update the IPs. Either pf 2.6 or google are at fault.

plfinch · Feb 25, 2022, 10:15 PM

@amello Refer to the following post for details on a patch required for successful Google Domains Dynamic DNS updating:

Forum Post

Peter

amello · Feb 25, 2022, 11:07 PM

@plfinch
Thanks for the tip. I'll check the patch and apply.

stephenw10 · Feb 26, 2022, 9:42 PM

That patch is in the 'recommended patches' list in the new System Patches package so it's one click to apply it.

Steve

plfinch · Feb 27, 2022, 5:38 AM

@stephenw10 I was very pleasantly surprised this morning when I updated package patches and saw the list of recommended patches with Redmine numbers listed. This is great!

Peter

bdaniel7 · Aug 24, 2022, 10:13 AM

@stephenw10
Hi, I have the same problem. The response from namecheap is not correctly parsed. I applied the patch for Redmine #12816 to pfSense 2.6.0-RELEASE, but the response is still not parsed. The cached IP still says 0.0.0.0. I have also rebooted the router.

stephenw10 · Aug 24, 2022, 11:29 AM

What is namecheap responding with?

Does it correctly update from a different dyndns client?

Steve

bdaniel7 · Aug 24, 2022, 11:37 AM

<?xml version="1.0" encoding="utf-16"?>
<interface-response>
<Command>SETDNSHOST</Command>
<Language>eng</Language>
<IP>xxx.yyy.zzz.aaa</IP> <---- the IP from my external gateway
<ErrCount>0</ErrCount>
<errors/>
<ResponseCount>0</ResponseCount>
<responses/>
<Done>true</Done>
<debug><![CDATA[]]></debug>
</interface-response>

I'm only using namecheap for dynamic dns.

bdaniel7 · Aug 24, 2022, 12:16 PM

I removed the .cache file generated for namecheap, and now when I save the settings for its client, the .cache file contains "0.0.0.0|1661343037", and in the UI it's displayed "0.0.0.0".
I also added a freeDNS API Version 2 client, which corectly registers and caches the dynamic IP.

stephenw10 · Aug 24, 2022, 1:03 PM

Hmm, looks OK. Are you actually seeing the 'Unknown Response' error logged?

bdaniel7 · Aug 24, 2022, 1:27 PM

Yes, this is the log generated after I saved the settings for namecheap:

Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: phpDynDNS (home): (Unknown Response)
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: phpDynDNS (home): PAYLOAD: <?xml version="1.0" encoding="utf-16"?><interface-response><Command>SETDNSHOST</Command><Language>eng</Language><IP>xxx.yyy.zzz.aaa</IP><ErrCount>0</ErrCount><errors /><ResponseCount>0</ResponseCount><responses /><Done>true</Done><debug><![CDATA[]]></debug></interface-response>
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Dynamic DNS namecheap (home.XMX.net): _checkStatus() starting.
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Data: <?xml version="1.0" encoding="utf-16"?><interface-response><Command>SETDNSHOST</Command><Language>eng</Language><IP>xxx.yyy.zzz.aaa</IP><ErrCount>0</ErrCount><errors /><ResponseCount>0</ResponseCount><responses /><Done>true</Done><debug><![CDATA[]]></debug></interface-response>
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header:
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header:
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: cf-ray: 73fc6680cbc5c1af-BUD
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: server: cloudflare
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: cf-cache-status: DYNAMIC
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: strict-transport-security: max-age=16000000; includeSubDomains
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: strict-transport-security: max-age=16000000; includeSubDomains
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: set-cookie: .s=3b275e1f0d8248488011fad0e6fa3ad4; domain=.www.namecheap.com; path=/; httponly
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: vary: Accept-Encoding
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: content-type: application/json
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: date: Wed, 24 Aug 2022 13:23:04 GMT
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Response Header: HTTP/2 200
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Dynamic DNS namecheap (home.XMX.net): _update() starting.
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Dynamic DNS (home.XMX.net): running get_failover_interface for wan. found igb0
Aug 24 16:23:04	php-fpm	11484	/services_dyndns_edit.php: Dynamic DNS namecheap (home.XMX.net): xxx.yyy.zzz.aaa extracted from Check IP Service
Aug 24 16:23:03	php-fpm	11484	/services_dyndns_edit.php: Dynamic DNS namecheap (home.XMX.net): _checkIP() starting.
Aug 24 16:23:03	php-fpm	11484	/services_dyndns_edit.php: Dynamic DNS: updatedns() starting

stephenw10 · Aug 24, 2022, 2:14 PM

Hmm, looks exactly like what that patch should correct.

Does it show as applied? Is the change actually present in /etc/inc/dyndns.class?

bdaniel7 · Aug 24, 2022, 2:19 PM

This is the namecheap section in the /etc/inc/dyndns.class file:

SteveITS · Aug 24, 2022, 2:24 PM

@bdaniel7 See also thread https://forum.netgate.com/topic/173646/namecheap-dynamic-dns-seems-to-be-broken-again

stephenw10 · Aug 24, 2022, 3:00 PM

Hmm, sure looks like the response is correct.

bdaniel7 · Aug 24, 2022, 3:16 PM

@stephenw10
With my limited php experience I was able to find out the problem.
The response is an xml sent on one line, with the encoding set to utf-16, so line $ncresponse = xml2array(substr($tmp, strpos($tmp, "\n") + 1)); gets executed, and $ncresponse is actually empty.
Which means that $ncresponse does not match any of the ifs. so it ends up in the last else.