I have done both of those - it still creates a new Self-Signed certificate with SHA1 hashing under the Remote Desktops store. 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. This is easy to configure using the “Remote Desktop Session Host Configuration” tool on Server operating systems. Our current setup is as follows: 2 RDS Servers (RDS1 and RDS2) that are each configured to be their own entity. For that open the Certificates Store console (Start > Run > mmc), select Certificates and click the Add button. Some remote desktop connection problems stem from an invalid or corrupt certificate. In the Add or Remove Snap-ins dialog box, on the Available snap-ins list, click Certificates, and then click Add. This didn't work If you have feedback for TechNet Subscriber Support, contact Select the Role Services and then click Select existing certificates... Browse to your certificate and enter the password. In the Remote Desktop Gateway Manager console tree, right click RD … 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. Depending on the version of your Remote Desktop Gateway Server, you can create the CSR in the same release of IIS. Please remember to mark the replies as answers if they help and unmark them if they provide no help. script; this didn't work, presumably because it runs before the certificate is generated. I would like to use the certificate that I have created instead of the default certificate. Deployment Overview click tasks and select Configure Deployment Properties 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. 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. 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. 1. Common domains are remote.domain.tld, secure.domain.tld, … The problem is, Windows decides 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. 3. navigate to the remote desktop folder -> certificates 4. delete the certificate for the name of the server and close the mmc instance 5. 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. Especially when RDP service is exposed on the internet (via TCP port 3389 that would be open in firewall). 2. Do you have any relevant group policy settings enabled on this server? What operating system version is the server running? 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. Group Policy settings are applied but none to do with the certificates. Hit Apply. The Set-RDCertificate cmdlet imports a certificate or applies an installed certificate to use with a Remote Desktop Services (RDS) role. Browse to the .pfx file, enter its password, and check Allow the certificate.. Remote Desktop Services uses certificates to sign the communication between two computers. With an existing deployment you would be able to edit properties via Server Manager -- RDS -- Overview -- Deployment Overview -- Tasks -- Edit deployment properties -- Certificates tab. Windows + R. Type in … I originally created my own certificate with SHA256, imported it into the Personal store and did things that way. Import remote machine’s certificate into a new GPO at Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Public Key Policies -> Trusted Root Certification Authorities. Not a good practice. Right click on “RDP-tcp” in the center of the window and select “Properties”. Do you have an existing RDS deployment? Import the certificate and its private key into Local Computer\ Personal store using certlm.msc. Is there any way to prevent Windows from automatically instating its own certificate, so that the one I have imported will always be used? I assume you do not have an RDS deployment created, correct? Basically, the command is using Set-RDCertificate CmdLet. The reason I ask is often people will set up their own Certificate Authority and issue a certificate from it, and there 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. I have tried setting certs through the certificates tab, it made no difference. For 2012 / 2012R2: On the Connection Broker, open the Server Manager. However it continues to regenerate the cert I removed before everytime despite performing those steps you mentioned. From there, I set this PowerShell script inside of a scheduled task that executes at startup, with a 4 minute delay. It's under a RDS deployment, yes. Now open “Remote Desktop Session Host Configuration”. Click Remote Desktop Services in the left navigation pane. On the “General” tab, click the “Select” button, Select your certificate, and then click “OK”. Install the Powershell module Posh-ACME from Powershell Gallery if needed. Now go down to Certificates in the Deployment Properties window this opens. To start deploying certificates launch Server Manager, click on Remote Desktop Services and from the Deployment Overview section choose Tasks > Edit Deployment Properties. It's Self-Signed - RDS works with the certificate though, it's essentially the default cert, only SHA256 instead of SHA1. tnmff@microsoft.com. Below is basic procedure for server that is not part of RDS deployment: 1. 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 Do this for each services you want to use this certificate. Enforce with Default Domain Domain Group Policy, B. 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. You should leave the auto-created self-signed certificate in the Remote Desktop store alone. Configure the deployment Click RD Connection Broker – Enable Single Sign On and click Select Existing certificate. Get Installed SSL 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. 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 Note: For first-time certificate mapping, you can verify it by looking into Remote Desktop Gateway Manager >> RD Gateway Server Status area. 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. Click “OK” one more time, and then all future connections will be secured by the certificate. Once the Deployment Properties window opens, click on Certificates. Personal store and not the self-signed. to reinstate the old certificate every time the server is rebooted. Configuring Certificates. 2012/2012R2/2016. 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 4. Replace the Remote Desktop certificate correctly, Remote Desktop Services (Terminal Services). It is typical for a Windows server to have a auto-generated self-signed certificate for its Remote Desktop service. To start we need to request and install a certificate on the local computer store on the RD Session Host server. This is the cool part! Using certificates for authentication prevents possible man-in-the-middle attacks. Save my name, email, and website in this browser for the next time I comment. There should also be a series of certificate files saved in C:\ProgramData\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org\. is one or more small details that RDS doesn't like and thus causes a problem. 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. Click Tasks > Edit Deployment Properties. In Server Manager, Remote Desktop Services, Overview, click Tasks and click Edit Deployment Properties, then click Certificates. Under Deployment Overview click tasks and select Configure Deployment Properties. https://aventistech.com/2019/08/08/replace-rdp-default-self-sign-certificate 2. Under Administrative Tools, select Remote Desktop Service and then Remote Desktop Gateway Manager. 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