Network

Public IP

Public IP addresses serve as the primary method for users to access UHosts and for host instances to provide external services. In UCloud Global, public IPs are elastic and migratable—when a host fails, the public IP can be easily migrated to another host (i.e., “Elastic IP”). When creating a host, if you select to purchase an Elastic IP and public bandwidth quota simultaneously, an Elastic IP will be allocated and bound to the host. You can view this IP resource information in the data panel of network products.

Multicast and Broadcast

In the basic network mode, UHosts currently support broadcast but do not support multicast.

Firewall

The firewall provides security functions for hosts. By binding firewall rules to UHosts, it can control and manage public network access to the hosts, providing necessary security guarantees for host security. The firewall supports TCP/UDP/ICMP/GRE protocols. We have created several sets of default firewalls, which by default open TCP ports 22, 3389, and PING. You can adjust them or create more firewall policies according to your business needs.