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Barracuda CloudGen Firewall

How to Configure DNS Settings

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The Barracuda CloudGen Firewall can act as an authoritative DNS server, returning definitive answers to DNS queries about domain names specified in its configuration.

Configure DNS Settings

  1. Go to NETWORK > IP Configuration.
  2. In the DNS Configuration section,
    1. Enter the IP address of the DNS server in the Primary DNS Server field.
    2. Enter the IP address of the secondary DNS server in the Secondary DNS Server field if applicable.
      dns_01.png
  3. Click Save.

Enable Caching DNS

Caching DNS intercepts DNS requests from your network to external DNS servers and if the answer to the request is present in the local cache, replies to the query speeding up DNS queries in your network and saving bandwidth in the process.

  1. Go to NETWORK > IP Configuration.
  2. In the DNS Configuration section, enter the IP address(es) of the DNS server(s).
  3. Set Cache DNS Responses to Yes.
    dns_02.png
  4. Click Save.

To clear the cache, click Clear DNS Cache.

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