DDNS (DYNU) Stuck in processing

[s0nlxaftrsh0ck]

Hey all, I've been scouring the forums and have been trying to recreate/apply the ddns-script like I've seen but for some reason it's still stuck in processing. I've used the following posts for guidance

Asus RT-AC68U (AsusWRT) DDNS problem

It seems that I would need some help getting DDNS to work with AsusWRT 380.65. I am using an Asus RT-AC68U router, which is behind another router (and therefore does not get an external IP itself). I am using http://www.dynu.com as the dynamic DNS service. Dynu.com lets the hostname be updated...

www.snbforums.com

User scripts

Third party firmware for Asus routers (newer codebase) - RMerl/asuswrt-merlin.ng

github.com

DDNS Sample Scripts

Third party firmware for Asus routers (newer codebase) - RMerl/asuswrt-merlin.ng

github.com

Here is an example of my script below with some comments in it.

#!/bin/sh
#
# https://www.dynu.com/en-US/DynamicDNS/IP-Update-Protocol
# Note: To get your domain id, send a GET request to /dns/ with your API key in the header.

touch /tmp/testScript

HOSTNAME=example.domain.com
GROUP=Main
PASSWORD=theAPIKeyHere1234
DOMAIN_ID=####### Got the Domain ID from the CURL Get Command
IP=${###.##.##.###} #This part I'm a bit confused on as I use the IP address DynuDNS gives me
IPsix=null # I'm not using IPV6
URL="https://api.dynu.com/v2/dns/${DOMAIN_ID}"

JSON_TEMPLATE='{"name":%s,"group":%s,"ipv4Address":%s,"ipv6Address":%s}'
JSON=$(printf "$JSON_TEMPLATE" "$HOSTNAME" "$GROUP" "$IP" "$IPsix")

curl -s -o /dev/null -w "%{HTTP_CODE}" --location --request POST "$URL" -H "Content-Type:application/json" -H "accept: application/json" -H "API-KEY: $PASSWORD" -d $JSON

if [ $HTTP_CODE==200 ];then
  /sbin/ddns_custom_updated 1
else
  /sbin/ddns_custom_updated 0
fi

And it just stays stuck in this spot

I restarted my router and the testScript file was indeed written to tmp however it keeps going in a loop of processing the DDNS and this is what I find in the logs.

May  3 12:45:00 rc_service: service 9027:notify_rc restart_letsencrypt
May  3 12:45:00 rc_service: service 9027:notify_rc restart_letsencrypt
May  3 12:45:00 custom_script: Running /jffs/scripts/service-event (args: restart letsencrypt)
May  3 12:45:00 Let's_Encrypt: Err, DDNS update failed.
May  3 12:47:08 rc_service: httpds 1472:notify_rc restart_ddns_le
May  3 12:47:08 custom_script: Running /jffs/scripts/service-event (args: restart ddns_le)
May  3 12:47:08 start_ddns: update CUSTOM , wan_unit 0
May  3 12:47:08 start_ddns: Clear ddns cache.
May  3 12:47:08 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:47:15 watchdog: start ddns.
May  3 12:47:15 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:47:15 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:47:15 start_ddns: update CUSTOM , wan_unit 0
May  3 12:47:15 start_ddns: Clear ddns cache.
May  3 12:47:15 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:47:45 watchdog: start ddns.
May  3 12:47:45 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:47:45 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:47:45 start_ddns: update CUSTOM , wan_unit 0
May  3 12:47:45 start_ddns: Clear ddns cache.
May  3 12:47:45 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:48:15 watchdog: start ddns.
May  3 12:48:15 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:48:15 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:48:15 start_ddns: update CUSTOM , wan_unit 0
May  3 12:48:15 start_ddns: Clear ddns cache.
May  3 12:48:15 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:48:45 watchdog: start ddns.
May  3 12:48:45 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:48:45 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:48:45 start_ddns: update CUSTOM , wan_unit 0
May  3 12:48:45 start_ddns: Clear ddns cache.
May  3 12:48:45 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:49:15 watchdog: start ddns.
May  3 12:49:15 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:49:15 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:49:15 start_ddns: update CUSTOM , wan_unit 0
May  3 12:49:15 start_ddns: Clear ddns cache.
May  3 12:49:15 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:49:45 watchdog: start ddns.
May  3 12:49:45 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:49:45 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:49:45 start_ddns: update CUSTOM , wan_unit 0
May  3 12:49:45 start_ddns: Clear ddns cache.
May  3 12:49:45 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:50:00 rc_service: service 9775:notify_rc restart_letsencrypt
May  3 12:50:00 custom_script: Running /jffs/scripts/service-event (args: restart letsencrypt)
May  3 12:50:00 Let's_Encrypt: Err, DDNS update failed.
May  3 12:50:15 watchdog: start ddns.
May  3 12:50:15 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:50:15 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:50:15 start_ddns: update CUSTOM , wan_unit 0
May  3 12:50:15 start_ddns: Clear ddns cache.
May  3 12:50:15 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:50:45 watchdog: start ddns.
May  3 12:50:45 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:50:45 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:50:45 start_ddns: update CUSTOM , wan_unit 0
May  3 12:50:45 start_ddns: Clear ddns cache.
May  3 12:50:45 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:51:15 watchdog: start ddns.
May  3 12:51:15 rc_service: watchdog 1501:notify_rc start_ddns watchdog
May  3 12:51:15 custom_script: Running /jffs/scripts/service-event (args: start ddns)
May  3 12:51:15 start_ddns: update CUSTOM , wan_unit 0
May  3 12:51:15 start_ddns: Clear ddns cache.
May  3 12:51:15 custom_script: Running /jffs/scripts/ddns-start (args: <WAN IP>)
May  3 12:51:45 watchdog: DDNS Retry reach MAX.(0), DDNS Recover Time set 39
May  3 12:55:00 rc_service: service 10584:notify_rc restart_letsencrypt
May  3 12:55:00 custom_script: Running /jffs/scripts/service-event (args: restart letsencrypt)
May  3 12:55:00 Let's_Encrypt: Err, DDNS update failed.

Please let me know if I've missed anything or if I've messed up somewhere... I've left this thing running for a weeks to months and this DDNS still has not resolved. I've updated to the latest firmware on Merlin as well RT-AX88U_386.5_2

 

[s0nlxaftrsh0ck]

Bump

Is it because I need Let's Encrypt on my DDNS?

 

[Spear_UK]

I got dynu working with the following code:

I think it might be because you are not using "" on the api password and domain id.

#!/bin/sh
#
# https://www.dynu.com/en-US/DynamicDNS/IP-Update-Protocol
# Note: To get your domain id, send a GET request to /dns/ with your API key in the header.

HOSTNAME=\"######.ddnsfree.com\"
GROUP=\"\"
PASSWORD="################################"
DOMAIN_ID="#######"
IP=\"${1}\"
IPsix=null

URL="https://api.dynu.com/v2/dns/${DOMAIN_ID}"

JSON_TEMPLATE='{"name":%s,"group":%s,"ipv4Address":%s,"ipv6Address":%s}'
JSON=$(printf "$JSON_TEMPLATE" "$HOSTNAME" "$GROUP" "$IP" "$IPsix")

curl -s -o /dev/null -w "%{HTTP_CODE}" --location --request POST "$URL" -H "Content-Type:application/json" -H "accept: application/json" -H "API-KEY: $PASSWORD" -d $JSON

if [ $HTTP_CODE==200 ];then
  /sbin/ddns_custom_updated 1
else
  /sbin/ddns_custom_updated 0
fi

 

[lepa71]

I have dynu.net working through dnsomatic without any scripting.

 

[s0nlxaftrsh0ck]

I got dynu working with the following code:

I think it might be because you are not using "" on the api password and domain id.

#!/bin/sh
#
# https://www.dynu.com/en-US/DynamicDNS/IP-Update-Protocol
# Note: To get your domain id, send a GET request to /dns/ with your API key in the header.

HOSTNAME=\"######.ddnsfree.com\"
GROUP=\"\"
PASSWORD="################################"
DOMAIN_ID="#######"
IP=\"${1}\"
IPsix=null

URL="https://api.dynu.com/v2/dns/${DOMAIN_ID}"

JSON_TEMPLATE='{"name":%s,"group":%s,"ipv4Address":%s,"ipv6Address":%s}'
JSON=$(printf "$JSON_TEMPLATE" "$HOSTNAME" "$GROUP" "$IP" "$IPsix")

curl -s -o /dev/null -w "%{HTTP_CODE}" --location --request POST "$URL" -H "Content-Type:application/json" -H "accept: application/json" -H "API-KEY: $PASSWORD" -d $JSON

if [ $HTTP_CODE==200 ];then
  /sbin/ddns_custom_updated 1
else
  /sbin/ddns_custom_updated 0
fi

Oh! Am I supposed to leave the ' \" ' sandwiched in like that? It looked so disjointed to me so I left them out assuming that it was just a place holder. Example below.

\"####.DomainHere.com\"

And for the DDNS IP address I'm adding in the DDNS IP address correct? Thank you for replying btw!!!

I have dynu.net working through dnsomatic without any scripting.

Oh shoot. Is there any tutorials for it or is it pretty straight forward?

Edit 1:
@Spear_UK
Tried your script and still getting the same result. I changed some options around namely under "Webui SSL Certificate"

Item: Original > New Setting
Method to retrieve WAN IP: External > Internal
HTTPS/SSL Certificate: Free Certificate from Let's Encrypt > None
Generate a new certificate: Yes > No

Once I set those I got the following

Status : Active

Edit 2:
Seems like I messed up with the domain part of it. I created my own domain instead of doing it with that ddnsfree.com like you did I deleted the made domain and made a new one with ####.ddnsfree.com. Added the following into my /jffs/scripts/ddns-start

HOSTNAME=\"MyNewHostname.ddnsfree.com\"
GROUP=\"\"
PASSWORD="The API Password from the site"
DOMAIN_ID="New Domain ID got through CURL"
IP=\"${NewIPAddress}\"

I left the certificate off as None and to generate a new one but it still seems the Yellow Exclamation mark on my DDNS.

Edit 3:
Seems like I got it working! I needed to leave the IPV4 address as \"{1}\"

So lessons learned on this leave most of the script as is and only adjust the first 4 fields. Just edit the text! Leave the rest for whoever stumbles across this post!

HOSTNAME=\"example.com\"
GROUP=\"yourGroup\"
PASSWORD=yourAPIKey
DOMAIN_ID=yourDomainID

Also when making a new DYNU account don't make your own domain. I did it using Ddnsfree.com or choose any of the domains in that list. Thanks everyone

 

[fotingo]

I have dynu.net working through dnsomatic without any scripting.

How did you get this done?
Can you show me your DDNS settings?