Auto-enrollment certainly is not supported. Unlike the above 2 scenarios, you don’t really need special GPO settings to deploy certificates, force RDS to use specific certs, etc. If you've already registered, sign in. However, if RDP using names still produces warning messages then let’s continue. When configuring a new template with the Remote Desktop Authentication EKU, is it necessary to tick the option to Publish to Active Directory? Connecting To Your Server Using Remote Desktop Protocol (RDP) "Your computer can't connect to the remote computer because the Remote Desktop Gateway Server's certificate has expired or has been revoked. Needless to say, any security professional would have a field day with this practice an ANY environment. Tim Beasley, Platforms PFE here again from the gorgeous state of Missouri. Kristin Griffin wrote an excellent TechNet Article detailing how to use certificates and more importantly, why for every RDS role service. I'm very tempted to go off on PKI hardening / best practices right now, but that is not on topic. Contact your network administrator for assistance." Normally when deploying ADCS, certificate autoenrollment is configured as a good practice. You still must connect using the correct machine names. This article describes an issue that occurs if you try to access the Remote Desktop Services (RDS) server through Remote Desktop Gateway (RD Gateway) service in Windows Server 2012 R2. Where certificates are deployed is all dependent upon what your environment requires. Or you will use multiple certs if you have both internal and external requirements. But, I’m not going to completely go off on a PKI best practices rant here…that’s for another day. I know the certificate is revoked. If the session hosts are handing out their self-signed certs rather than the wildcard cert in your deployment properties, there's a problem in your configuration somewhere. Notice I didn’t say to make any registry changes or click the little “Don’t ask me again for connections to this computer” option? Here’s an example:  In my lab, a custom certificate with the Remote Desktop Authentication EKU was installed via autoenrollment. It is like having another employee that is extremely experienced. An Experts Exchange subscription includes unlimited access to online courses. Create a new GPO at the domain level (or OU...and don’t use the Default Domain Policy…bad practice), then edit it. And for all our sanity, do NOT mess with the security level and encryption level settings! Hello everyone! If your managing that server it is on you. Next step, open RD Gateway Manager, right-click the server’s name and choose Properties. It talks about proper SAN names to include for external and internal naming for the 2012 / 2012 R2 RDS server roles. However, this is a problem because we have terminal clients connecting (so they act more like a Windows PC using MSTSC.EXE). Manual = no built in automation, hence why I also mentioned scripting via PowerShell. This article describes the methods to configure listener certificates on a Windows Server 2012-based or Windows Server 2012-based server that is not part of a Remote Desktop Services (RDS) deployment. Otherwise, register and sign in. If I did, please feel free to ask! This blog is intended for Remote Desktop Gateway (RD Gateway) users who want to turn on certificate revocation checking on the RD Gateway client as a security best practice. Just leave them alone and keep it simple. Should the server automatically renew the certificate once it enters the renewal period specified on the template? And in this scenario where the RDS Roles aren’t deployed, then the subject name will typically be the machine’s name…configure the certificate template to pull the subject name from AD. You add more risk that way. The idea is to get rid of the warning message the right way…heh. Quick, easy, and efficient…and unless you script it out to hit all machines involved, you’ll only impact one at a time instead of using a scoped GPO. You don’t have to manually do anything to each individual server in the deployment! Okay this scenario is a little like the previous one, except for a few things. Contact your network administrator for assistance." Fix: Your Computer Can’t Connect to the Remote Desktop Gateway Server If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. Premium Content You need a subscription to comment. Once the template’s created and scoped appropriately via permissions (autoenrollment or whatever) then it’s time for the machine to request the certificate. The certificates you deploy need to have a subject name (CN) or subject alternate name (SAN) that matches the name of the server that the user is connecting to. Apparently, in this new version, Windows 10 force to use Kerberos authentification to authenticate in RDG. I have specified the template name in group policy via Server Authentication certificate template. DO use custom templates with proper EKUs. Solution for this scenario – Export the remote machine’s certificate (no private key needed) and create a GPO that disperses the self-signed certificate from the remote machine to the local machine. These powerful SSL tools deliver instant scans and reports on the state of your SSL Certificate. Let’s say Remote Desktop Services has been fully deployed in your environment. You can of course, but typically not mandatory. @NikkiAIT are you still having issues with this? This computer can't connect to the remote computer because the Terminal Services Gateway server's certificate is expired or revoked When I click ok and try to connect again inmediatly, I can connect. Regarding point (A), there appears to be no way to automate a certificate install to that node in the Computer certificate store. Manual enrollment is a bit time consuming, so I prefer autoenrollment functionality here. If so, make sure the wildcard SAN is correct. You're wanting to know more about an actual RDS deployment vs. ridding yourself from the "annoying" cert warning popup. Remember, certificates you deploy need to have a subject name (CN) or subject alternate name (SAN) that matches the name of the server that a user is connecting to! I am receiving the message "Your computer can't connect to the remote computer because the Remote Desktop Gateway's server's certificate has expired or has been revoked" when trying to access a TS . The certificate has a corresponding private key. Contact your network administrator for assistance. Moving on and re-referencing the info in Part 1, quit trying to RDP to an IP address, and make sure you’re connecting to a machine that has a certificate that contains the name you’re trying to establish an RDP session into. thanks for detailed explanations.i.e. Not sure what you mean by manual process, I have a "few" RDS deployments fully automated with LetsEncrypt certificates. What about computers that don’t have RDS enabled, will they get those certificates too? (not user). Connect with Certified Experts to gain insight and support on specific technology challenges including: We've partnered with two important charities to provide clean water and computer science education to those who need it most. See! If you’ve come across this in your environment, don’t fret…as it’s a good security practice to have secure RDP sessions. get the certificate, mangle the certificate into the form that RDS wants, deploy the certificate during the monthly maintenance window... https://docs.microsoft.com/en-us/powershell/module/remotedesktop/set-rdcertificate?view=win10-ps. For 2012 / 2012R2: You can use a single certificate for all the roles if your clients are internal to the domain only, by generating a wildcard certificate (for example: *.CONTOSO.com) and binding it to all roles. You people reading this right now wouldn’t be here if it were that easy, right? Image2 shows the OID for the custom EKU of Remote Desktop Authentication. You must be a registered user to add a comment. I am writing this blog post to shed some light on the question of “How come we keep getting prompted warning messages about certificates when we connect to machines via RDP?”  A couple of examples you might see when running the Remote Desktop Connection Client (mstsc.exe)…. Seems like when RDS tries to access company file, QB is validating the digital signature certificate with its issuer to check if certificate has been revoked. How do I fix this? Facebook; Twitter; LinkedIn; https://www.experts-exchange.com … Microsoft wants you to be warned if there’s a potential risk of a compromise. Note: even if you have multiple servers in the deployment, Server Manager will import the certificate to all servers, place the certificate in the trusted root for each server, and then bind the certificate to the respective roles. (https://technet.microsoft.com/en-us/library/ff458357.aspx). Our internal domain name suffix is .com, so for example, our AD forest is "acme.com". But this, technically, doesn't place an RDP certificate in the correct, more "correct" place. Just take the time to plan / lab things out before deploying to production…. In regards to the renewal during reboot scenario, this would happen if you have a cert lifetime that's extremely short (more likely your case) or have a renewal period that spans the GPO refresh cycle. On TechNet on Dec 18, 2017 think that PKI specialists would the... Would think that PKI specialists would want the service via GPO now no longer connect to the direction... Simply changing how you connect via RDP to machines ( names vs IP address custom... When connecting via RD Web Access roles installed, doing all sorts of mutual Authentication with! For all our sanity, do not have any lights out management features or IPKVM on this server ”... Several parts or some other PKI solution deployed in your case, you 're seeing has to with. 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