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The computer can't verify the identity of the RD Gateway

RRAS, VPN, TS/RDP, Routing and remote Access.

The computer can't verify the identity of the RD Gateway

Postby chicagotech » Fri Sep 15, 2017 3:17 pm

Situation: The client has RS Quick Start in their Windows 2012 R2 server. They can access RemoteApp internally, but when outside users open RemoteApp, they get his message: The computer can't verify the identity of the RD Gateway.

Troubleshooting: Try this post first.
Many Obstacles in Publishing RemoteApps to the Internet in ...
Jan 5, 2014 ... Many Obstacles in Publishing RemoteApps to the Internet in ... “The computer can't verify the identity of the RD Gateway “Server Name”. It's not ...
https://social.technet.microsoft.com/.. ... ublishing- remoteapps-to-the-internet-in-windows-server-2012.aspx
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Re: The computer can't verify the identity of the RD Gateway

Postby chicagotech » Fri Sep 15, 2017 3:20 pm

I believe you need to create the cert request in iis manager on the rdg gateway computer. The request needs to specify the fqdn used by the clients to connect over the internet. For processing the request signing you use a CA trusted by your client computers. If you have full control over the client computers you can use your own CA, as long as they trust your CA root certificate. Otherwise use a commercial CA such as Verisign, Thawte or such. After importing the signed cert to iis it should be available for import to your rdg gateway.

It is all documented in the official guide: http://technet.microsoft.com/en-us/libr ... 10%29.aspx

including the helpful if ranting comment at the bottom of http://technet.microsoft.com/en-us/libr ... 49(v=ws.10).aspx

And except apparently this little detail: http://blog.xiquest.com/2010/01/rd-gate ... -firewall/

"Open up “IIS Admin” console from the “Administrative Tools” menu. Navigate to the default web site and configure the “Application Settings” for “Default Web Site\RDWeb\Pages“. Change the following setting: “DefaultTSGateway” = [fqdn of Internet accessible TS Gateway]

Note: make sure this is also the server name listed on your SSL certificate."

I'll tidy up this post as soon as I get behind a proper computer.
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How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
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Location: Chicago USA


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