案例一：keepalived
Web1 web2 #yum -y install keepalived #vim /etc/keepalived/keepalived.conf Web1 MASTER 100 Web2 BACKUP 50 192.168.4.80 #systemctl restart keepalived
案例二:keepalived+LVS
Web1 web2 #cd /etc/sysconfig/network-scripts/ #cp ifcfg-lo ifcfg-lo:0 #vim ifcfg-lo:0 192.168.4.15 255.255.255.255 #vim /etc/sysctl.conf Net.ipv4.conf.all.arp_ignore=1 Net.ipv4.conf.lo.arp_ignore=1 Net.ipv4.conf.all.arp_announce=2 Net.ipv4.conf.lo.arp_announce=2 #systemctl restart network Proxy1 proxy2 #yum -y install ipvsadm #yum -y install keepalived #vim /etc/keepalived/keepalived.conf Lvs MASTER 100 192.168.4.15 Server 192.168.4.15:80 Real srevre 192.168.4.100 192.168.4.200 DR tcp rr weigth 1 #systemctl restart keepalived
