Navigate to Groups and click the + icon towards the top. A group can be your home or office IP, or any other IP address that you would like to grant access to certain ports on your remote Mac. Moving on, we’re going to create a group. Navigate to Option Rules -> Filtering Preferences and uncheck the box for Block inbound icmp echo requests. By default, Murus drops inbound ICMP traffic. Overview – This screen shows the raw output of the pf rules that have been created by Murus.įirst, we’re going to enable inbound ICMP so that it is available as a troubleshooting option. We will be allowing traffic from specific groups in this screen. Inbound Rules – All inbound traffic is blocked by default. Option Rules – General options for Murus rules Groups – To allow connections to specific services from certain IP addresses, we will create a group of IPs or IP ranges. Each service has one or more tcp/udp ports assigned to it. Services – This screen contains a predefined list of services known to Murus. Status – We won’t use this screen until the end, when we have our firewall rules configured and tested. Click OK and then select Start Murus Menulet At User Login if you would like (recommended).Īfter Murus is started, click Start Murus Lite. Start by downloading and installing the latest version of Murus: Īfter it is installed, open Murus and there may be a couple informational popups about the menulet that will display in the menu bar. When configuring a firewall on a production server, do so during a maintenance window. Applying the default Murus rules can result in an unreachable server. We recommend reading through this guide fully before beginning. WARNING: Configuring a firewall on a remote server can result in an unreachable server.
#Murus menulet icon menubar how to#
This tutorial will show how to enable ICMP and lock down a Mac with only VNC (Screen Sharing) and SSH ports open to specific IPs. This tutorial will be using the latest free version of Murus. It is a frontend for the built-in macOS pf (packet filter) firewall. Murus is a powerful software firewall available for macOS.
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