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This paper mainly introduces the application of centos7 9. Various deployment modes and configuration management of FullNAT mode of system deployment DPVS, including IPv4-IPv4, binding, IPv6-IPv6, IPv6-IPv4 (NAT64) and keepalived mode. The following configurations are all based on dual arm mode, and the corresponding toa module of DPVS has b ...

1, Overview 1.1 cluster Cluster, also known as cluster It is composed of multiple hosts, which is external as a whole. It only provides one access entry (domain name or IP address), which is equivalent to a mainframe computer 2, Classification There are three types of target differences Load balancing clusterHigh availability clusterHi ...

1, Overview DR mode Also called Direct Routing The semi open network structure is adopted, which is similar to the structure of tun mode, but the node and scheduler are in the same physical network The load scheduler connects with each node server through the local network, and there is no need to establish a special ip tunnel The schedul ...

introduction In this highly information-based IT era, the production system, business operation, sales and support, daily management and other links of enterprises increasingly rely on computer information and services, resulting in a large increase in the demand for the application of high availability technology, so as to provide conti ...