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How can I share port 443 between the user portal and other internal sites?

I have been trying to find a way to share port 443 between my XG User Portal and other internal sites. The topology I have currently is as follows:

 

Internet > Unifi USG > XG1

 

where XG1 currently houses the VPN and User Portal along with WAF rules for some internal sites. I have tried standing up another XG instance to stand in front and route traffic for port 443 but I am not able to get the user portal to load when I use the below configuration:

 

Internet > Unifi USG > XG2 > XG1

 

where XG2 has domain based WAF rules for port 443

 

Is there a known working configuration where port 443 can be shared between the User Portal and other sites that doesn't involve changing the port for the user portal?



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  • I was able to figure this out.

     

    The below configuration does work (just helps to use the right IP between XG2 and XG1):

     

    Internet > Unifi USG > XG2 > XG1

     

    I suspect you can also do the below configuration as well but I haven't test this.

     

    Internet > XG2 > XG1