Step 4: Configure the ZoneAlarm Firewall on the Development Server

In this step we’ll add the IP address of each networked device to ZoneAlarm ’s Trusted Zone, and check that the Trusted Zone security setting is set to medium.

1. Add networked devices to the Trusted Zone

   ZoneAlarm’s default firewall settings are fairly permissive. You should be able to ping all other devices on the local network from the development server with the default settings. But before you can ping the development server from networked devices, you must add the IP address of each of those devices to ZoneAlarm’s Trusted Zone.

   Note: if you have ZoneAlarm firewall installed on another networked device, you will have to add the development server’s IP, 192.168.0.200, to the Trusted Zone of that device before you can ping it from the development server.

   1. Open the ZoneAlarm client, click the View Details button in the, Antivirus and Firewall section. In the Advanced Firewall section, click View Zones then click the Add button. Select IP Address from the drop-down menu.

      

   2. In the Add Zone popup, select Trusted from the Zone drop-down menu. Enter the IP address of the device, and add a description. Click OK. Here’s an example for the netbook:

      

   3. Add the remaining networked devices to the Trusted Zone (excluding the development server). Click OK when finished.

      

2. Set ZoneAlarm Trusted Zone Security Level to Medium

   Setting the Trusted Zone security level to Medium allows access to all the ports and protocols required by the development server on the local network:

   • TCP port 80 (HTTP)
   • TCP port 443 (HTTPS)
   • incoming TCP/UDP port 53 (DNS)
   • ICMP echo (ping)

   1. Open the ZoneAlarm monitor. Under the Antivirus and Firewall section click the View Details button. In the Antivirus and Firewall tab, click Settings in the Advanced Firewall section. If the Trusted Zone is not already set to Medium, drag the Trusted Zone slider to Medium. Close the ZoneAlarm monitor.

      

      More on ZoneAlarm firewall settings are covered in Part 5: Installing and configuring BIND.

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