SmartConnect in isolated network environments | PowerScale: Network Design Considerations | Dell Technologies Info Hub

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SmartConnect in isolated network environments

SmartConnect in isolated network environments

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SmartConnect is, effectively, a limited implementation of a custom DNS server: It answers only for the SmartConnect zone names or aliases configured on it. To use SmartConnect in an isolated network environment where no DNS infrastructure is available (such as a DMZ), configure the client systems using the SmartConnect service IP address as the primary DNS server. Configuring the client systems this way ensures that:
- Requests to connect to PowerScale clusters with SmartConnect zone names will succeed.
- The isolated network benefits from SmartConnect features, such as load-balancing and rerouting traffic to prevent unavailable nodes, will work as expected in a typical, non-isolated deployment.
It is essential to recognize that PowerScale OneFS is not a full DNS server. Hence, it will only answer for SmartConnect zones.
Use SmartConnect zones and aliases in place of name server zones. As an example, do not create name server zones on a bind host. Alternatively, create SmartConnect zones and aliases.
The following commands show how to simulate and test a configuration that uses the SmartConnect service IP address as the primary DNS server:
C:\>nslookup
Default Server: 10.123.17.60
Address: 10.123.17.60
> isi01-s0.domain.com
Server: [10.123.17.60]
Address: 10.123.17.60
Name: isi01-s0.domain.com
Address: 10.123.17.64
> isi01-s0.domain.com
Server: [10.123.17.60]
Address: 10.123.17.60
Name: isi01-s0.domain.com
Address: 10.123.17.63