DNS Forwarding Proxy continually monitors connectivity to BloxOne Threat Defense Cloud DNS. If the On-Prem Host cannot reach BloxOne Threat Defense Cloud Anycast DNS server for any reason, it will send requests to a local DNS server which protects clients by security RPZ (DNS Firewall) feeds. DNS Forwarding Proxy fallback to the DNS server is used as an end point when the primary server is unavailable. Having the DNS Forwarding Proxy fallback to a local DNS server, instead of the default DNS resolution path, can be used in situations where BloxOne Threat Defense Cloud is unreachable.
For more information on DNS Forwardng Proxy, see the following topics:
- Response Rate Limiting
- Adding Local Resolvers and Internal Domains to DNS Forwarding Proxy
- Anycast Support for DNS Forwarding Proxy
- Viewing DNS Forwarding Proxy Service Level Logs
- DNS Forwarding Proxy Fallback to Local DNS Server
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