For the correct operation of the firewall, UserGate must have access to the following Internet servers:
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Registration server --- reg2.usergate.com (TCP ports 80, 443)
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UserGate list and software update servers --- updates.usergate.com, (TCP ports 80, 443).
When creating a configuration cluster, the following protocols must be allowed between the nodes:
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Settings replication support --- TCP ports 4369, 9000-9100
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Web console service --- TCP port 8001.
For more on network availability requirements, see the appendix Network Environment Requirements.