AsusWRT Merlin. 2 problems: 1, EZ-IPUpdate disable? 2, OpenVPN updown.sh Permission denied

[tuitionjellyfish]

I have 2 problems.

First, I tried to use EZ-IPUpdate with DuckDNS and now it runs, but I get these errors:

Dec 15 03:26:02 custom_script: Running /jffs/scripts/ddns-start (args: 192.168.100.10)
Dec 15 03:26:03 ddns: Completed custom ddns update
Dec 15 03:31:56 ddns_update: ez-ipupdate: starting...
Dec 15 03:32:03 ddns_update: unknown service type: duckdns
Dec 15 03:33:06 ddns_update: ez-ipupdate: starting...
Dec 15 03:34:04 ddns_update: could not resolve ip address for tun11.
Dec 15 03:36:05 ddns_update: ez-ipupdate: starting...

Second. I'm trying to run the OpenVPN server on the router, but it stays stuck in the GUI saying:
"Initialinzing the settings of OpenVPN server now, please wait a few minutes to let the server to setup completed before VPN clients establish the connection."

In the log, I see this:

Dec 15 03:39:47 rc_service: httpds 292:notify_rc restart_chpass;restart_vpnserver1
Dec 15 03:39:48 kernel: tun: Universal TUN/TAP device driver, 1.6
Dec 15 03:39:48 kernel: tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
Dec 15 03:39:48 kernel: device tun21 entered promiscuous mode
Dec 15 03:39:52 openvpn[2324]: Options error: --up script fails with 'updown.sh': Permission denied
Dec 15 03:39:52 openvpn[2324]: Options error: Please correct this error.
Dec 15 03:39:52 openvpn[2324]: Use --help for more information.
Dec 15 03:39:52 syslog: VPN_LOG_ERROR: 1539: Starting VPN instance failed...

I tried to change the permissions of /usr/sbin/updown.sh
But chmod:

/usr/sbin/updown.sh: Read-only file system

I was thinking maybe chmod 711 would do the trick. But I couldn't change it.

tl;dr:
1 - Can someone please guide me on how to stop ez-ipupdate from running anymore?
2 - Can someone help me fix openvpn server, as I get: "Options error: --up script fails with 'updown.sh': Permission denied"

Thank you in advance. I'm frustrated -_-

Extra info:
AsusWRT-Merlin
RT-AC66U
v380.69

 

[RMerlin]

The file permissions in the firmware are correct. Make sure you're not preventing script execution by disabling them in your Custom section.

 

[tuitionjellyfish]

"Make sure you're not preventing script execution by disabling them in your Custom section."

Under Administration -> System -> Enable JFFS custom scripts and configs
It's set to Yes.


I'm sorry, where and how can I check this? Thank you for your help. I am not totally clueless about this stuff, but a lot of it is new too.

 

[RMerlin]

"Make sure you're not preventing script execution by disabling them in your Custom section."

Under Administration -> System -> Enable JFFS custom scripts and configs
It's set to Yes.


I'm sorry, where and how can I check this? Thank you for your help. I am not totally clueless about this stuff, but a lot of it is new too.

I mean the "Custom settings" section on your OpenVPN configuration page. Make sure you don't change the script security level in that section.