On the “Request Handling” tab, make sure purpose is set to “Signature and encryption” and that “Allow private key to be exported” is ticked, On the “Security” tab, give “Authenticated Users” “Enroll” permissions, On the “Extensions” tab, click “Key Usage” and select “Edit”, Ensure “Digital Signature” is ticked and tick “Allow encryption of user data” and click “OK”, On the “Subject Name” tab, select “Supply in the request” and click “OK”, Now we have to issue the certificate to the Certificate Authority, Click on the start menu and type “certsrv.msc” and press enter to launch the “Certification Authority” console, Right-click on “Certificate Templates”, click “New” and “Certificate Template to Issue”, Select the HGS template you just created and click “OK”. This site uses Akismet to reduce spam. Learn how your comment data is processed. I followed this article to set-up my HGS, but as soon as I enable HTTPS, my KPS becomes unreachable. For this guide, we’ll be installing the HGS into a new forest of its own. When you’ve finished your deployment and have tested the CIPolicy to your satisfaction, run the following against your original CIPolicy .xml file (See, told you you’d need to keep it): To apply the enforced policy, copy it across to “C:\Windows\System32\CodeIntegrity\SIPolicy.p7b” on each host that you want guarded. Change both Compatibility Settings to “Server 2016” as we’ll only be using this CA for issuing the HGS certs and don’t need to worry about backwards compatibility issues. NOTE: Your chosen certificates must support RSA 2048 bit keys and their key-usage policy (EKU) must permit digital signing and encryption, Log onto the HGS you just deployed and open “Server Manager”. The easiest way to achieve this is by creating a, From a DNS server on your fabric domain, click the start menu, type, Expand a domain controller on the left pane and right-click, Type the name of your HGS bastion domain into the, Type the IP address of your first HGS server into the, To test that this is working as expected, open an administrative command prompt and flush your DNS cache by typing. The first step to setup a Windows Server 2016, as a VPN server is to add the Remote Access role to your Server 2016. A we’re going to be using TPM mode for this deployment, there are a few prerequisites to be aware of. This has been improved in Server 2016 and even lets us configure our host OS Network Adapters within the switch. With that in mind, log onto your reference Hyper-V host, open an elevated PowerShell console and run the following: Other than the configured URLs, your output should be identical to this: Nice, so it looks like everything is working thus far. You plan to deploy guarded hosts. Run the following PowerShell from your SCVMM server in an elevated PowerShell console (providing it has the required networking to your Hyper-V hosts configured). As previously discussed, we’re going with TPM mode as our method of attestation. First published on TECHNET on Mar 28, 2016 [This post is authored by Sumesh Kumar, Program Manager for the Enterprise and Security Product Team] The “Key Protection Service” (KPS) is one of the two services that run as part of a Windows Server role called the Host Guardian Service … Specifies individual hash values for each discovered binary. Now that we’ve installed the role, we can install the HGS service. The following PowerShell will Initialize your second HGS node, update password and IP for your environment. This mode of attestation is relatively easy to setup and has no special hardware requirements. Under Profile, leave Domain, Private, and Public checked > Next.. Lastly, name the rule and select Finish.. Now you can access your Windows server using SSH! If you’re logged onto your SCVMM server as a Domain Admin, you can remove -Credentials from the command as you’ll already have the required permissions. The software components in a Windows Server system are always separated. For SCVMM to push out our CI Policies, they have to sit on a file share that is read accessible to both your SCVMM and Hyper-V host computer accounts. I’ve gone thru the steps to create a 3 node cluster but nothing about the HGS cluster looks like a cluster. TPM modes uses a TPM identifier which is also called a platform identifier OR endorsement key (EKpub), we’ll just stick with TPM Identifier. In my deployments, this didn’t seem to happen as expected, if happens, repeat the steps in the  Import HGS Certificates and Apply Service Account Permissions section. Once you’ve created the share, copy your CI Policy to it (The .p7b file you created earlier and before you renamed it to SIPolicy.p7b), With that in mind, navigate to “Settings”, “General” and open “Host Guardian Service Settings”, Enter the Attestation Server and Key Protection Server URLs you configured earlier, Now click “Add”, enter the a name for your CI Policy and place the path to your file share stored CI policy (including file name) in the “File Path” field. These validations are there to make you aware of the minimum requirements running a shielded VM, but do not affect the output of this cmdlet. Start-Service w32time. To that end, Microsoft developed a new feature for Windows Server 2016 Hyper-V called Host Guardian. Configuring network settings is one of the first steps you will need to take on Windows Server 2016. I can confirm that the service has not changed at all and is in fact still the same SMTP service I first used back when Windows Server 2003 was launched. The “Host Guardian Service” (HGS) is a new server role introduced in Windows Server 2016. Enable Host Guardian Service role by opening windows powershell in a elevated mode and run the following command. I have 2 HyperV hosts that have TPM 2.0 chips. SMTP by default uses TCP port 25. Using quotes will cause it to fail. Running/Configuring DNS Role. On your HGS/Certification Authority server, click start and type “certlm.msc” and press enter, Right-click on “Certificates” and select “All Tasks”, “Request New Certificate”. 1. If “IsHostGuarded” now shows as “True”, then troubleshoot your DNS . In this article, I’ll show you how to deploy and configure Managed Service Accounts with Windows Server 2016 and Active Directory.. Put your HGS service name into the hosts file on your Hyper-V host and recheck. The upside of this mode though is that it offers the strongest possible protection. Microsoft Exchange 2016 - SMTP Connector - Setup Guide Important Points. Because we’ve set everything up using PowerShell, SCVMM is a little out of the loop at present, but we can fix that fairly easily. HGS01: This is a standalone HGS Server that will be unclustered because this is a test environment. If the status shows “Reduced functionality”, click the “Clear TPM” action and reboot your host. HGS provides Attestation and Key Protection services that enable Hyper-V to run Shielded virtual machines. Have you done the HTTPS configuration of the HGS KPS service. Back at Initialise the HGS Server Using TPM Trusted Attestation (Continued) you selected a name for your HGS Service, you’ll need this name here, in my example I called it “hgs”. Your email address will not be published. You can jump to any of the sections covered in this post using the links below: Before we dive into things, it bears mentioning that there are two attestation modes available using the Host Guardian Service, these are: Host attestation is controlled by placing the computer object of a Hyper-V host in a security group created in Active Directory. Under Action, select Allow the connection > Next.. The “Host Guardian Service” (HGS) is a new server role introduced in Windows Server 2016. As I said, very rusty but I hope that helps or at least puts you on the right path. This identifier is used to determine whether a host is considered “guarded”. Repeat the same process for your encryption certificate. The easiest way to achieve this is by creating a “Conditional Forwarder” on your fabric DNS. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Installation or configuration of the SMTP server on Windows 2016 is the same as Windows Server 2012 except for a few differences related to the interface of both the servers. Is the different HGS documentation (including the MS Docs) I don’t see any steps about assigning the HGS url’s as a cluster resource or how the URL’s would failover to a second node. Expand a domain controller on the left pane and right-click “Conditional Forwarders” and select “New Conditional Forwarder”, Type the name of your HGS bastion domain into the “DNS Domain” field, Type the IP address of your first HGS server into the “IP Address” field and press “Tab”. Change the “Validity period” to something that works for your organisation, I went with 2 years. This mode of attestation uses both secure boot and code integrity measurements to ensure that the host is in a healthy state and is running only trusted code. If not, pass these instructions on to your Active Directory/DNS administrator. This can be installed into an existing forest or (as is recommended) installed into a forest of its own. You can activate the license server by using the Remote Desktop Licensing Manager. Click “Next” on the “Before You Begin” screen. This is the environment used in the example explained in this article: 1. Under Scope, let the rule apply to Any IP address for remote and local IP addresses, then Next.. Does the server running the HGS need a TPM chip? Part 6: Deploy and Configure Shielded VMs Using SCVMM, Part 4: Deploy and Configure a 3 Node 2016 Hyper-V Cluster, https://technet.microsoft.com/itpro/windows/keep-secure/deploy-code-integrity-policies-policy-rules-and-file-rules, http://hgs.hgsbastion.local/KeyProtection. Have you modified the IIS bindings for HTTP? TPM Identifier (EKPub) – this is unique to each host, TPM Baseline (Boot Measurements) – Only required once for each class of hardware. Step by Step – Configuring Guarded Hosts with Virtual Machine Manager 2016, EDU-Days Webinar 2 – Online Assessments with the Dugga solution, Securing Azure datacenters with continuous IoT/OT monitoring, What we like about Microsoft Defender for Endpoint, Art of the Possible – Delivering Impactful & Engaging Events in Government, Do more with Meetings, Webinars and Live Events in Teams, Taking Postgres’s temperature with these 4 system metrics. If you’re not a reader though, don’t worry, following this step-by-step should still net you a Guarded Fabric by its end . TPM mode has a much more involved deployment when compared to AD Mode, it also has specific hardware and software requirements. To resolve this, we’re going to make SCVMM aware of our Attestation and KeyProtection URLs and also give it control of our (already applied) Code Integrity policy. This will facilitate you in adding up only a few portions of the software. Host Guardian uses layers for Hyper-V security Although you need to restart the host to apply the policy, hang fire on that for a bit, we’re gonna have to reboot in a little while anyway. You deploy a new server named Server22 to a workgroup. Makes sure the observed output is the same as your reference host above. 1. Now copy the TCGlog file to “C:\Temp\” on your HGS server. It also makes for a much more interesting deployment , Before continuing through this guide, I would strongly recommend giving THIS post a read. Do you have guidelines to enable HTTPS? Required fields are marked *. Now that all hosts are configured and are attesting successfully, let’s get SCVMM up to the same level and give it control over our guarded hosts and CI Policy. In this section we’re going to work through an entire end-to-end deployment of the Host Guardian Service, including Hyper-V, SCVMM and in Part 6, VM template configuration and deployment of Virtual Machines using SCVMM. Simple Network Management Protocol (SNMP) is an age-old network monitoring protocol still in wide use today. The PowerShell below assumes that the only Hyper-V hosts being managed by your SCVMM server are the ones we built as part of this guide, if that is not the case, remove:“(Get-SCVMHost).Name”and replace it with the host names separated by a comma:(Invoke-Command -ComputerName HyperVHost1, HyperVhost2, HyperVHost3 {(Get-Platform…). This post has been republished via RSS; it originally appeared at: Data Center Security articles. If you’re logged onto your SCVMM server as a Domain Admin, you can remove, To apply the enforced policy, copy it across to, Install the Host Guardian feature and restart the host. HGS Will … Although this level is specific, it can cause additional administrative overhead to maintain the current product versions’ hash values. This was always worked for me in the past and has actually failed when I didn’t (pretty sure that was a bug though), but I’ll let you make up your own minds . Armed with our certificates, we can now process with Initializing our first HGS server. Each time a binary is updated, the hash value changes, therefore requiring a policy update. I need to setup a server to run the HGS. The code below will install the HGS into a domain named “hgsbastion.local”, the password specified here is for the DSRM (Directory Services Restore Mode) only and will not change the password you’re logged on with. The first thing we need to do is prepare the HGS by installing the Host Guardian Service role. It should look something like this: Place a tick in “Use a Code Integrity policy to restrict the software…” and click “OK”, This will kick of a job that applies the correct URLs and CI policy (which we’ve already done), hence no reboot , You receive a warning, more of an information popup really This can be ignored by clicking “Yes”. From . Previous Post in Series: Part 4: Deploy and Configure a 3 Node 2016 Hyper-V Cluster Welcome to Part 5 of the Server 2016 Features Series. Now click “OK”, Making sure your certificate template is ticked, click “Enroll”, Repeat the above process but using “encryption.FQDN” as the “Common Name” value and “DNS” value, Now we want to export the signing and encryption certificates as .PFX, Still within the Certificates – Local computer console, navigate to “Personal”, “Certificates”, Right-click on the signing.FQDN certificate and select “All Tasks”, “Export”, Select “Yes, export the private key” and click “Next”, Accept the defaults on the next screen and click “Next”, Tick the “Password” box and enter a password for your certificate and click “Next”, Type a file path to save your .PFX file to and click “Next” and “Finish”. Learn how your comment data is processed. I tried to enable https Set-HgsServer -Http -Https -HttpsCertificateThumbprint xxxxxxxxx. When viewing one of the hosts properties, we can see the reason for, After 30 seconds or so, your host status should change to, You receive a warning, more of an information popup really This can be ignored by clicking, Now allow up to 10 minutes for the signing and encryption certificates to be replicated to your second HGS node. The IP Address is 10.0.0.4. The PowerShell below assumes that the only Hyper-V hosts being managed by your SCVMM server are the ones we built as part of this guide, if that is not the case, remove: (Invoke-Command -ComputerName HyperVHost1, HyperVhost2, HyperVHost3 {(Get-Platform…), The script will also ask for credentials, enter Domain Admin credentials. The Host Guardian Service (HGS) is a server role introduced in Windows Server 2016 for configuring guarded hosts and running shielded VMs (shielded virtual machines) in Windows Server and System Center Virtual Machine Manager.. Note: A new version of this article has been published for Windows Server 2019. Now that we’ve got our Certificate Authority up and running, we can go ahead and issue the certificates we need for initialising our HGS. Hyper-V hosts (I’ve included links if you want more detail on each item): Now that we’ve got the boring stuff out of the way, let’s get to the deployment . The “Host Guardian Service” (HGS) is a new server role introduced in Windows Server 2016. Here it is done by Powershell tool. HGS provides Attestation and Key Protection services that enable Hyper-V to run Shielded virtual machines . Now click “Next” 3 times….that damned Next button! Once the server is back up from patching, open an elevated PowerShell console and type the following: Configure your management NIC to use the first HGS server for its DNS resolution. If you have permission to do this yourself, great. I’ve decided to split that out into another post as this one ended up a fair bit longer than I expected. If your Windows Server 2016 machine is a VM inside Hyper-V, you have to disable time sync. Being that we’ve already taken care of this out-with SCVMM, the host won’t actually reboot it’ll just give SCVMM control. If is doesn’t respond, then there is a good chance you have an issue with DNS resolution between your host fabric and your HGS bastion domain. Now that we’ve enabled support for the Host Guardian Service within SCVMM, all that’s left to do is enable the use of our CI policy. Click the start menu and type “tpm.msc” and press enter. We’re going to create a new certificate template for this to make sure the issued certificates are of the correct type, We’ll start by duplicating an existing certificate template to work as our base, I used the, Select the HGS template you just created and click, On your HGS/Certification Authority server, click start and type, Making sure your certificate template is ticked, click, Repeat the above process but using “encryption.FQDN” as the, Still within the Certificates – Local computer console, navigate to, Right-click on the signing.FQDN certificate and select, Accept the defaults on the next screen and click, Type a file path to save your .PFX file to and click, A name for your HGS service – This is the distributed network name of the cluster and CANNOT be the FQDN. Though is that it offers the strongest possible Protection of new posts by.. Advised that test the CI policy by running typical workloads like VMs, Management agents, backup agents etc resource... 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