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The XG Series hardware appliances will reach end-of-life (EOL) on March 31, 2025. Click here to see the XG to XGS migration documentation.

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https://docs.sophos.com/nsg/sophos-firewall/19.5/Help/en-us/webhelp/onlinehelp/index.html?contextId=hosts-services-FQDN-host-group

FQDN host group

You can add individual FQDN hosts to one or more host groups.

You can use FQDN host groups when you configure rules and policies, such as firewall rules and SD-WAN policy routes.