For the correct operation of the firewall, UserGate must have access to the following Internet servers:
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Registration server: reg2.entensys.com (TCP ports 80, 443).
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UserGate list and software update servers: static.entensys.com, 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 Appendix 1. Network environment requirements.