I have configure remote access feature web application proxy but not configure give the error. The remote name could not be resolved.

I have configure remote access feature web application proxy but not configure give the error. The remote name could not be resolved in server 2012 R2.
I have configure Ad and ADFS different server and try to configure web application proxy different server. what setting are required for connect web application proxy to Ad and ADFS.

Hi,
In addition, please make sure that the port 443 is not blocked by the firewall.
Web Application Proxy requires internal name resolution to resolve the names of backend servers, and AD FS servers. When publishing web applications via Web Application Proxy, every web application you publish requires an external URL. For clients to reach
these web applications, a public DNS server must be able to resolve each external URL that you configure. Note that the external URL must resolve to the same IP address as the Web Application Proxy server, or the external IP address of a firewall or load-balancer
placed in front of the Web Application Proxy server.
Best regards,
Susie
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