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Reference table for the sample server configuration:

IP

Hostname

Description

192.168.56.110

storage

NFS Server

192.168.56.100

vip

Virtual IP Addr

192.168.56.101

mft_1

MFT Node

192.168.56.102

mft_2

MFT Node

192.168.56.120

db

PostgreSQL Database

High Availability Configuration

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Panel

vrrp_instance VI_1 {
        state MASTER #      # This setting must be comment for Backup Mode
        # state BACKUP #    # This setting will be uncommented for the Backup Node
        interface eth1
        virtual_router_id 51
        priority 255
        advert_int 1
        authentication {
              auth_type PASS
              auth_pass 12345
        }
        virtual_ipaddress {
              192.168.56.100/24dev eth1 label eth1:1
        }
}

In our case, the VIP interface will be under the interface eth1

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This document references the following documents.

Name

Location

Setting up a Linux cluster with Keepalived

https://www.redhat.com/sysadmin/keepalived-basics