Problems installing Let's Encrypt (with DuckDNS) - [TDL tutorial]

  • I run OMV on a RockPro64 (4GB RAM).
    OMV version 4.1.23-1 (Arrakis)
    Kernel: Linux 4.4.132-1075-rockchip-ayufan-ga83beded8524
    Processor: ARMv8 Processor rev 2 (v8l)


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    I tried to get Let's Encrypt running with DuckDNS following the TechnoDad tutorial (https://www.youtube.com/watch?v=TkjAcp8q0W0). Used the linuxserver dockers without any additional tags.


    After running the Let's Encrypt docker, and running docker logs -f letsencrypt I get the following output. There we goo now:

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    So I have an idea that this could be an issue with my router settings. My router is a ZyXEL VMG8324-B10A.
    I go to Network Settings > NAT. There I found no existing rules.
    I added two new rules following this scheme:


    Service Name : Lets Encrypt (80 [/443])
    WAN Interface : ADSL_via_[ISP]
    WAN IP :
    Trigger Start Port : 80 [/ 443]
    End Port : 80 [/ 443]
    Translation Start Port : 90 [/ 450]
    Translation End Port : 90 [/ 450]
    Server IP Address : 192.168.1.2
    Protocol : TCP/UDP
    I did nothing with the WOL settings.


    When I saved the port forwarding for 80->90 I needed to confirm the following:
    Since TCP port 80 is used.
    The router WEB server port will be moved to 8080.



    For the 443->450 rule it was:


    Since TCP port 443 is used.
    The router HTTPS server port will be moved to 4433.



    In both cases I clicked to confirm.


    What could be the problem here? Something with my Port Forwarding settings?


    All the best,

    I run OMV on a RockPro64 (4GB RAM).
    OMV version 4.1.23-1 (Arrakis)
    Kernel: Linux 4.4.167-1213-rockchip-ayufan-g34ae07687fce
    Processor: ARMv8 Processor rev 2 (v8l)

    Einmal editiert, zuletzt von kromsam ()

  • Yes the machine is on there. Could it be a problem with the firewall?

    I run OMV on a RockPro64 (4GB RAM).
    OMV version 4.1.23-1 (Arrakis)
    Kernel: Linux 4.4.167-1213-rockchip-ayufan-g34ae07687fce
    Processor: ARMv8 Processor rev 2 (v8l)

    Einmal editiert, zuletzt von kromsam ()

  • I put off all the firewalls of my router.


    When I used this port scanner: https://hidemyna.me/en/ports/


    I get the following back:


    All 1000 scanned ports on [adsl.isp] ([ip adress]) are closed (990) or filtered (10)
    Nmap done: 1 IP address (1 host up) scanned in 10.22 seconds.


    So they just don't seem to be open... How do I get around this.

    I run OMV on a RockPro64 (4GB RAM).
    OMV version 4.1.23-1 (Arrakis)
    Kernel: Linux 4.4.167-1213-rockchip-ayufan-g34ae07687fce
    Processor: ARMv8 Processor rev 2 (v8l)

  • Maybe. Do you have any special firewall configurations in place?
    Does the router mark the port forwarding as active?
    You cloud try a port scanner to see if the ports are actually open.

    Output changed when I tweaked DMZ and UPnP settings. Could the solution lay there maybe?

    I run OMV on a RockPro64 (4GB RAM).
    OMV version 4.1.23-1 (Arrakis)
    Kernel: Linux 4.4.167-1213-rockchip-ayufan-g34ae07687fce
    Processor: ARMv8 Processor rev 2 (v8l)

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