There should also be a series of certificate files saved in C:\ProgramData\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org\. To continue from my previous guide I will now show how to use certificates from Let’s Encrypt and automate the renewal for use with Windows Remote Desktop Services. The problem is, Windows decides You should leave the auto-created self-signed certificate in the Remote Desktop store alone. Go to: administrative tools -> remote desktop services -> remote desktop session host configuration Under Configuration Status and Configuration Tasks, you can see a message “server certificate is not installed and the View or modify certificate properties hyperlink are no longer displayed”. On the Remote Desktop Service server running the Connection Broker service open up the IIS Management console, under the page for the server name select Server Certificates and then under actions click on Create Certificate Request. With an existing deployment you would be able to edit properties via Server Manager -- RDS -- Overview -- Deployment Overview -- Tasks -- Edit deployment properties -- Certificates tab. Browse to the .pfx file, enter its password, and check Allow the certificate.. Starting with Windows Server 2003 SP1, it is possible to provide server authentication by issuing a Secure Sockets Layer (SSL) certificate to the Remote Desktop server. This is easy to configure using the “Remote Desktop Session Host Configuration” tool on Server operating systems. 2012/2012R2/2016. From there, I set this PowerShell script inside of a scheduled task that executes at startup, with a 4 minute delay. Replace RDP Default Self Sign Certificate manually, fix the vulnerability detected by Nessus Scanner, Trusted Remote Desktop Services SSL Certs for Win10/2019, Retrieve Microsoft Exchange Message Tracking Log with PowerShell, Generate CSR from Windows Server with SAN (Subject Alternative Name), Firewall Ports Required to Join AD Domain, Deploy Windows 2019 RDS in WorkGroup without AD, Accessing GUI of Brocade SAN Switch without Broswer, IPSec IKEv2 VPN between FortiGate and Cisco ASA, IPSec VPN between FortiGate and Cisco ASA, Authenticate Aruba Devices Against ClearPass with RADIUS, How To Setup Aruba ClearPass VM Appliance. Deployment Overview click tasks and select Configure Deployment Properties 2. Using certificates for authentication prevents possible man-in-the-middle attacks. In Server Manager, Click on Remote Desktop Services, then Overview. Configure the deployment Click RD Connection Broker – Enable Single Sign On and click Select Existing certificate. Enforce with Default Domain Domain Group Policy, B. Our current setup is as follows: 2 RDS Servers (RDS1 and RDS2) that are each configured to be their own entity. You can use this cmdlet to secure an existing certificate by using a secure string for the password. We have Remote Desktop Services installed on a server and currently I am in the process of changing the certificate to a more secure one - this works just fine if I import the certificate via MMC and remove the older one. I originally created my own certificate with SHA256, imported it into the Personal store and did things that way. Is there any way to prevent Windows from automatically instating its own certificate, so that the one I have imported will always be used? Please remember to mark the replies as answers if they help and unmark them if they provide no help. What operating system version is the server running? It is typical for a Windows server to have a auto-generated self-signed certificate for its Remote Desktop service. I have my p12 certificate that I create with openssl and I would like to know how to change the certificate for remote desktop in the remote computer, because the certificate which I have problems is the name of the computer, and has the same emisor. If you have feedback for TechNet Subscriber Support, contact As I have said, if I replace the certificate and leave the server on - it works perfectly, it's only a reboot that seems to reset things. It's Self-Signed - RDS works with the certificate though, it's essentially the default cert, only SHA256 instead of SHA1. 3. You may open an administrator command prompt and run the following commands: The best I could do right now is use a PowerShell script upon startup to remove the certificate Windows tries to generate - it works, but I wanted to know if there is a 'cleaner' way of getting the same result. Configuring Certificates. If you have a problem with the above command I recommend you hand type the thumbprint because sometimes you can get an unprintable character included when copying and pasting. On the “General” tab, click the “Select” button, Select your certificate, and then click “OK”. Click Tasks > Edit Deployment Properties. I assume you do not have an RDS deployment created, correct? To open Remote Desktop Gateway Manager, click Start, point to Administrative Tools, point to Remote Desktop Services, and then click Remote Desktop Gateway Manager. 2- Import / install the certificate on the RDS server From the server manager: Click on Remote Desktop Services; Click on Tasks and select "Edit deployment properties" In the new window, on the left panel, click Certificates; Next click on Select existing certificate; Enter the path to your certificate in .pfx format as well as the password. Not a good practice. Steps to Replace RDP Default Self Sign Certificate to fix the vulnerability detected by Nessus Scanner, You will see the following error message when connecting to remote server via Remote Desktop (RDP) due to the Default Self Sign SSL Certificate is used by default, Open Group Policy Management and edit the Default Domain Policy to apply the Certificate Template to all servers in the AD Domain, Go to Computer Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Security\Server Authentication Certificate Template and enter the Template Name that you created, Go to Computer Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Security\Require use of specific security layer for remote (RDP) connections and change the Security Layer to SSL, Run “gpupdate /force” and Restart Remote Desktop Services to force the settings to be applied immediately, RDS Authentication Certificate is installed successfully in Certificate – Local Computer, There is NO SSL Certificate error when you login to Remote Server with FQDN via Remote Desktop now, Open Certificate Authority and modify the RDS Template following the steps below, Open Certificate – Local Computer with certlm.msc and select Create Custom Request, Select Common Name and enter the FQDN of the Server, Enter a Friendly Name to identify this certificate, Login to http://CA_SERVER/certsrv and select Request a Certificate. fully - I had to manually import the certificate into the Remote Desktops store as well to get it to work, and remove the one Windows generates. Replace RDP Default Self Sign Certificate, A. The scheduled task method of running the PowerShell script appears to work - and I have tested through Remote Desktop and I verified that the correct certificate (with SHA256) is being used. As before I will use Posh-ACME to get the certificates from Let’s Encrypt. I would like to use the certificate that I have created instead of the default certificate. Now open “Remote Desktop Session Host Configuration”. Get the Thumbprint of the SSL certificate you want Remote Desktop to use. Windows + R. Type in … Common domains are remote.domain.tld, secure.domain.tld, … Check the self-assigned remote desktop certificate. I have tried setting certs through the certificates tab, it made no difference. Is the new certificate issued from a public authority such as GoDaddy, GlobalSign, DigiCert, GeoTrust, Thawte, Comodo, etc? script; this didn't work, presumably because it runs before the certificate is generated. Remote Desktop Services uses certificates to sign the communication between two computers. Configure the listener to use the certificate using below command in administrator command prompt: wmic /namespace:\\root\cimv2\TerminalServices PATH Win32_TSGeneralSetting Set SSLCertificateSHA1Hash="". 4. Granted, this shouldn't be often, however the plan is to upgrade the certificate on many RD servers, and so this automatic replacement of the certificate I want to instate will become unmanageable. On the wizard that just popped-up choose Computer Account > Local Computer. If all that fails then here is how you replace the certificate on the certificate store: Open mmc.exe (Microsoft Management Console) Add the add-in certificates (for the computer account) (and select local computer) Navigate to the remote desktop folder -> certificates Import remote machine’s certificate into a new GPO at Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Public Key Policies -> Trusted Root Certification Authorities. This is the cool part! Right click on “RDP-tcp” in the center of the window and select “Properties”. The reason I ask is often people will set up their own Certificate Authority and issue a certificate from it, and there Get Installed SSL Certificate To change the permissions, follow these steps on the Certificates snap-in for the local computer: Click Start, click Run, type mmc, and then click OK. On the File menu, click Add/Remove Snap-in. If you have a proper certificate (and Private key) in Personal store and the thumbprint configured on the listener it will use the certificate in the Remote Desktop Services was created originally before - all I want to do is reconfigure it to use a certificate with SHA256 instead of SHA1. Now that you have created your certificates and understand their contents, you need to configure the Remote Desktop Server roles to use those certificates. Note: For first-time certificate mapping, you can verify it by looking into Remote Desktop Gateway Manager >> RD Gateway Server Status area. Click “OK” one more time, and then all future connections will be secured by the certificate. When a client connects to a server, the identity of the server and the information from the client is validated using certificates. https://aventistech.com/2019/08/08/replace-rdp-default-self-sign-certificate The CSR includes contact details about your website or company. 2. Generate a CSR Code for Remote Desktop Services When applying for an SSL Certificate, you must generate a CSR code and submit it to the CA. Depending on the version of your Remote Desktop Gateway Server, you can create the CSR in the same release of IIS. Import the certificate and its private key into Local Computer\ Personal store using certlm.msc. This didn't work Select the Role Services and then click Select existing certificates... Browse to your certificate and enter the password. However it continues to regenerate the cert I removed before everytime despite performing those steps you mentioned. For 2012 / 2012R2: On the Connection Broker, open the Server Manager. The common name, or subject name, is the FQDN of the domain name used to connect. I did this because originally I tried assigning the script to a GPO on the domain for the Remote Working OU that the server is in as a startup To start we need to request and install a certificate on the local computer store on the RD Session Host server. We provide the policy a name, in the example I give it a name of Remote Desktop Authentication and provide a Object Identifier of 1.3.6.1.4.1.311.54.1.2 this will identify the certificate as one that can be used to authenticate a RDP server. Install an SSL Certificate on Remote Desktop Services Before beginning the installation, make sure you have all the required SSL files. Group Policy settings are applied but none to do with the certificates. In the Remote Desktop Gateway Manager console tree, right click RD … Do you have an existing RDS deployment? Click Submit a certificate request by using a base-64-encoded CMC or PKCS #10 file, or submit a renewal request by using a base-64-encoded PKCS #7 file. I have done both of those - it still creates a new Self-Signed certificate with SHA1 hashing under the Remote Desktops store. It's under a RDS deployment, yes. However, if you open Server Manager and navigate to Remote Desktop Services > Deployment Properties, you’ll see the four role services don’t have this new certificate.. Our job now is to install the certificates into RDS. In Server Manager, Remote Desktop Services, Overview, click Tasks and click Edit Deployment Properties, then click Certificates. Well right now I have a solution, and that is that I have created a PowerShell script that enumerates the Certificates inside of the Remote Desktop store, and checks the SignatureAlgorithm.FriendlyName value to see if it is "sha256RSA" - if it Replace the Remote Desktop certificate correctly, Remote Desktop Services (Terminal Services). 3. Hit Apply. In the Add or Remove Snap-ins dialog box, on the Available snap-ins list, click Certificates, and then click Add. Do you have any relevant group policy settings enabled on this server? In the Remote Desktop Gateway Manager console tree, right-click the local RD Gateway server, which is named for the computer on which the RD Gateway server is running, and then click Properties . Each contain: Remote Desktop Licensing; Remote Desktop Management; Remote Desktop Connection Broker; Remote Desktop Gateway; Remote Desktop Services; RemoteApp and Desktop Connection Management I know this is an old post, but it bears pointing out. For that open the Certificates Store console (Start > Run > mmc), select Certificates and click the Add button. Once the Deployment Properties window opens, click on Certificates. Windows Server 2012 and Networking Fundamentals Apprentice. This certificate is a local resource, and it resides on the PC that you use to establish the remote desktop connection to the remote machine. Under Administrative Tools, select Remote Desktop Service and then Remote Desktop Gateway Manager. to reinstate the old certificate every time the server is rebooted. By RDS deployment, I mean someone created a RDS deployment via Server Manager -- Add roles and features -- RDS install -- quick/standard -- session based -- etc., or equivalent powershell command on Server Install the Powershell module Posh-ACME from Powershell Gallery if needed. Now go down to Certificates in the Deployment Properties window this opens. 1. tnmff@microsoft.com. Below is basic procedure for server that is not part of RDS deployment: 1. Certificates. Basically, the command is using Set-RDCertificate CmdLet. The reason I ask is you would normally configure the certificates via RDS deployment properties. Save my name, email, and website in this browser for the next time I comment. To start deploying certificates launch Server Manager, click on Remote Desktop Services and from the Deployment Overview section choose Tasks > Edit Deployment Properties. Some remote desktop connection problems stem from an invalid or corrupt certificate. Under Deployment Overview click tasks and select Configure Deployment Properties. Do this for each services you want to use this certificate. The Set-RDCertificate cmdlet imports a certificate or applies an installed certificate to use with a Remote Desktop Services (RDS) role. Especially when RDP service is exposed on the internet (via TCP port 3389 that would be open in firewall). Click Remote Desktop Services in the left navigation pane. Personal store and not the self-signed. is one or more small details that RDS doesn't like and thus causes a problem. 3. navigate to the remote desktop folder -> certificates 4. delete the certificate for the name of the server and close the mmc instance 5. isn't, it is removed. 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