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Deployment: Windows Firewall And Group Policy

Windows clients and servers require outbound SMB connections in order to apply group policy from domain controllers and for users and applications to access data on file servers, so care must be taken when creating firewall rules to prevent malicious lateral or internet connections. By default, there are no outbound blocks on a Windows client or server connecting to SMB shares, so you will have to create new blocking rules.

Deployment: Windows Firewall and Group Policy

You must not disable the Server service on domain controllers or file servers or no clients will be able to apply group policy or connect to their data anymore. You must not disable the Workstation service on computers that are members of an Active Directory domain or they will no longer apply group policy.

There are several group policy changes required to prevent devices being discovered as "Other" or unclassified. Best practices recommend creating a new group policy object specific for this deployment to ensure these changes are deployed to the device.

If you remove the built-in Users group from the Allow log on locally security policy, your PCoIP WorkSpaces users won't be able to connect to their WorkSpaces through the WorkSpaces client applications. Your PCoIP WorkSpaces also won't receive updates to the PCoIP agent software. PCoIP agent updates might contain security and other fixes, or they might enable new features for your WorkSpaces. For more information about working with this security policy, see Allow log on locally in the Microsoft documentation.

Make sure you are editing your group policy object from a Windows 7 or Server 2008 R2 machine to ensure you are editing the policy with the same client-side extension present.1. Edit the group policy object you wish to put these settings into.2. Expand the Computer Config > Policies > Windows Settings > Security Settings > Windows Firewall with Advanced Security > Windows Firewall with Advanced Security > Inbound Rules node.3. Right-click in the working area and choose New Rule...4. Choose the Predefined option, and select Windows Management Instrumentation (WMI) from the drop-down list, Next.5. There are a number of options here, but I tend to just select one: the (WMI-In) option with the Domain profile value. If you aren't sure what you need, then just remember you can come back and add the others later. Next button.6. Allow the connection > Finish.

I believe I have not explained my question properly. Actually, I wanted to remotely administer WMI for all the clients. As you explained, it is enabled by default, but due to firewall settings, it is not possible. So, I was looking for a group policy or port settings that can be enabled on the windows firewall which would allow access to WMI to all the clients. I have found a group policy which is

When a user logs on to a domain, the logon event will include both user information and group membership. Since this group membership defines which Dashboard group policy will be applied, it is important to ensure that users are added to the appropriate groups in Active Directory.

A group policy in Dashboard will determine the custom network rules and regulations that will apply to users with that policy. This can include custom bandwidth limits, more or less restrictive content filtering rules, custom access to subnets, etc.

Note: Policy mappings in Dashboard are done based on the FQDN of the group policy object in Active Directory. If the OU of any object in the FQDN path changes, the group policy mapping will need to be re-added in Dashboard.

If a user is part of more than one group specified in a Group Policy mapping the first group in the list is applied, they will not receive a combination of both policies. For example, in the screenshot below, if a user was part of both staff and executives they would be mapped to staff and only receive the policy configured as the staff policy:

Note: Active Directory group policy does not support group nesting or policy overlapping. If a domain user is a member of an AD group (e.g. staff), and that group is contained within another group that has a Group Policy mapping (e.g. executives), the mapped policy (executives) will not be applied to the user.

The best practice for deploying Active Directory-based group policy is to add users to a single AD group which is mapped to a single group policy. In the example below, a company has different security levels for its executives and staff. A user Bob is a staff member and Billy is an executive. In this case, the company creates two AD groups, staff and executives. Bob is added to the staff group and Billy the executives group. Therefore Bob receives the policy applied by staff and Billy the policy from executives:

In this mode, the MX Security Appliance acts as a layer 2 bridge and does not modify the source address of traffic that traverses the WAN uplink. This configuration allows the MX to query the security logs, obtain an end-user's account name and associated device IP address, and apply the corresponding group policy.

Considering remote work, and being dependent on an active VPN connection in order to receive group policy updates, is not the most fortunate combination in regards to managing security features on your devices.

- when there are 4 DC in a domain, I recommend on 2 DC, install STA Suite (Agent + Collector)on the other 2 DC, install STA Agent, and configure them to serve those 2 STA Collectorson XG firewall, put those 2 STA Collectors into same Collector group, since they are in same AD domain

Ensure that your firewall settings allow communication to Dynatrace.Depending on your firewall policy, you may need to explicitly allow certain outgoing connections. The remote Dynatrace addresses to add to the allow list are given on the installation page for OneAgent.

If you are managing Windows 10 devices using Active Directory then instead of manually signing on to each PC and creating registry entries to disable TLS 1.0 and TLS 1.1, you can create a group policy object and target / link the group policy object to the Organizational Unit (OU) containing Windows 10 devices.

You can also use the search bar to find specific indicators. Note that risk indicator names include terms from local or group policy names. To view the full list of indicators and their description, refer to GravityZone Indicators of Risk.

If you wish to work as a System administrator, then you need to understand group policies because Group policy is a peculiarity of Microsoft Windows Active Directory that gives extra controls to user and computer accounts. It also provides systems configurations of the user's computing ecosystems and helps system administrators to defend user's computers from infiltration and data breaches. In this hands-on virtual lab, as a Windows system administrator you will learn how to configure security settings using various Microsoft group policies. Other Challenges in this series are "Configure Linux Firewall ACL Rules" and "Can You Secure Network Access?"

After configuring the file system auditing settings, the final step is to configure the security options. In this last step, you will learn how to use the default domain policy to enable Interactive logon "Do not display last user name" and refresh the group policy. Group Policy is implicitly refreshed when you reboot the domain member.


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