How to access ADFS externally with web app

Tuff Gong 6 Reputation points
2020-03-19T14:45:51.913+00:00

Hello!
I really need someone to help me out now since i spent days learning and doing labs and i finally made it but not completely. I have 3 VMs, 1 DC, ADFS server and ADFS proxy server with 2 NICs. Internally i can reach the ADFS login page with https://adfs.domain.com/adfs/ls/idpinitiatedsignon.aspx and its working. But i want to be able to reach the ADFS externally, so i created a public DNS record for adfs.domain.com and pointed it to my public ip and in my router i configured port forwarding so that when the request comes in, it should be sent to my ADFS proxy server which will pass it to the ADFS server and etc.
But when i try to reach the ADFS https://adfs.domain.com/adfs/ls/idpinitiatedsignon.aspx externally i get error message this site cant be reached. adfs.domain.com took too long to respond.

So i need help to be able to reach the ADFS over the internet, can someone help me out with what to do and how ?
Thanks thanks

Active Directory Federation Services
Active Directory Federation Services
An Active Directory technology that provides single-sign-on functionality by securely sharing digital identity and entitlement rights across security and enterprise boundaries.
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