How to setup DNS on a USG

When confronted with slow performance, this is sometimes provoked by insufficient DNS setup,
especially when this error only occurs with domain names and not with IPs!
This tutorial will give you a basic idea on how to set up DNS correctly on the devices with our ZLD-OS (USG/UAG/NXC).

Walkthrough steps:
Method 1: Custom defined

1. Open web interface of the device and login
2. Go to Configuration > Network > Interface > Ethernet
3. Select the interface you want to set the DNS server on
4. Click “Show advanced properties”
5. On “First DNS server”, select custom defined, and enter 8.8.8.8 e.g. (for Google DNS Server), and click “OK”  to apply and save the settings

 
Method 2: Object reference

1. Open web interface of the device and login
2. Go to Configuration > System > DNS
3. Click on “Add” under the “Domain Name Forwarder”
4. Enter the domain zone, or for a wildcard (all domains): *
5. Click the public DNS server option and enter a DNS server, e.g. 8.8.8.8 (Google DNS Server)
6. Select the correct query port, in this case “Wan1” and click “OK” to apply and save the settings

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