Compile and install keepalived-2.0.16.tar.gz

First, download the installation package

wget https://www.keepalived.org/software/keepalived-2.0.16.tar.gz

 Install its dependencies

All rpm packages in a directory.

rpm -Uvh --force --nodeps *rpm

Two , unzip and install

tar xf keepalived-2.0.16.tar.gz

cd keepalived-2.0.16

./configure --prefix=/usr/local/keepalived

make && make install

cp /root/keepalived-2.0.16/keepalived/etc/init.d/keepalived /etc/init.d/

cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/

mkdir /etc/keepalived

cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/

cp /usr/local/keepalived/sbin/keepalived /usr/sbin/

 Third, modify the master configuration file

vim /etc/keepalived/keepalived.conf

! Keepalived the Configuration File for 

global_defs { 
   # e-mail address received 
   notification_email { 
     [email protected] 
     [email protected] 
     [email protected] 
   } 
   # mailing address 
   notification_email_from [email protected] 
   smtp_server 127.0.0.1 
   smtp_connect_timeout 30 
   the router_id of the NGINX_MASTER 
} 

{check_nginx vrrp_script 
    Script "/usr/local/nginx/sbin/check_nginx.sh" 
} 

vrrp_instance VI_1 { 
    State the MASTER 
    interface ens33 
    51 is routing the VRRP ID # instance virtual_router_id, each instance is unique 
    priority 100 # priority Secondary servers 90
    advert_int 1 # Specify VRRP advertisement packet heartbeat interval, the default one second 
    authentication { 
        AUTH_TYPE the PASS 
        AUTH_PASS 1111 
    } 
    virtual_ipaddress { 
        192.168.247.188/24 
    } 
    track_script { 
        check_nginx 
    } 
}

 Fourth, start the service

systemctl start keepalived
systemctl enables keepalived

 Fifth, check the vip

ip addr