In the Customize Service Settings dialog box, click Apply to this service, and then select the service that you want to allow. On the Program page, click This Program Path, and then type the path to the executable file that hosts the network service. On the same GPO you edited in the preceding procedure, click Action, and then click New rule. On the Name page, type a name and description for your rule, and then click Finish. On the Profile page, select the network location types to which this rule applies, and then click Next. On the Action page, select Allow the connection, and then click Next. Configure as appropriate for your design, and then click Next. On the Scope page, you can specify that the rule applies only to network traffic to or from the IP addresses entered on this page. On the Protocol and Ports dialog box, for Protocol type, select TCP.įor Local port, select RPC Endpoint Mapper, and then click Next.
Citect security windows#
On the warning about Windows service-hardening rules, click Yes. In the Customize Service Settings dialog box, click Apply to this service, select Remote Procedure Call (RPC) with a short name of RpcSs, click OK, and then click Next. On the Program page, click This Program Path, and then type %systemroot%\system32\svchost.exe. On the Rule Type page of the New Inbound Rule Wizard, click Custom, and then click Next. In the navigation pane, click Inbound Rules. Open the Group Policy Management Console to Windows Defender Firewall with Advanced Security. To create a rule to allow inbound network traffic to RPC-enabled network services To create a rule to allow inbound network traffic to the RPC Endpoint Mapper service
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This topic describes how to create rules that allow inbound RPC network traffic. To complete these procedures, you must be a member of the Domain Administrators group, or otherwise be delegated permissions to modify the GPOs. Using the two rules configured as described in this topic helps to protect your device by allowing network traffic only from devices that have received RPC dynamic port redirection and to only those TCP port numbers assigned by the RPC Endpoint Mapper. The second rule allows the network traffic that is sent to the dynamically-assigned port number. The RPC Endpoint Mapper replies with a dynamically-assigned port number that the client must use to communicate with the service. The incoming traffic consists of requests to communicate with a specified network service. The first rule allows incoming network packets on TCP port 135 to the RPC Endpoint Mapper service. To allow inbound remote procedure call (RPC) network traffic, use the Windows Defender Firewall with Advanced Security node in the Group Policy Management console to create two firewall rules.
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