Dashboard not accessible from internet when using non default ports

Hi:

If I change the default 80/443 ports to something else like 8080/8443, my OMV5 dashboard won't be available from the internet. All things equal, but with the default ports, the system works great.

I have done this so far:

* I have checked the OMV5 documentation to see if there is something special regarding the ports for the Web Administration, but I wasn't able to find something there: https://openmediavault.readthe…n/5.x/various/advset.html

* I have checked that all those ports are opened o my router and forwarded to my OMV5 box.

* I have even checked various combinations for the URL, like explicitly writing http / https and :8080 / :8443 on the web browser.

* To see if this may be related to Cloudflare I have tried to access the dashboard using my public address (My assumption is that in this way I will bypass the restrictions/security from Cloudflare).

I'm getting a 522 error on the browser (A timeout according to the Cloudflare page that seems to blame my device). I have checked this article to see if there is any restriction of the ports, but it seems to be okay: https://support.cloudflare.com…e-with-Cloudflare-s-proxy

Could it be something else that I have to do on my OMV5 to make it "listen" to other ports from the WAN? Locally those non-default work ok.

I appreciate any light on this.

Thank you!

Best regards,

Mauricio

Thank you for your response gderf, what you mention about the ISPs is new information to me that I wasn't aware of.

Yeah! I've changed the OMV ports according to the router setting. However you made me realize other combinations to try.

On router, I forwarded 80/443 traffic to 8080/8443 on the OMV. Now it works! If I type https://mysite.com I get the OMV dashboard. Then I would say this is not the OMVs fault (Because I have set a custom port for it, which was my doubt about OMV). This issue must be related to the ISP.

However, to check that last assumption, I've tried on the router forwarding the ports (supported by Cloudflare for https): 443, 2053, 2083, 2087, 2096, 8443 to the internal 8443 on the OMV5. Of those, only the 443 worked.

I'll ask my ISP about it. But it seems my issue is not related to OMV5.

Thank you!