1 keepalived配置文件
! Configuration File for keepalived
global_defs {
# notification_email {
# acassen@firewall.loc
# failover@firewall.loc
# sysadmin@firewall.loc
# }
# notification_email_from Alexandre.Cassen@firewall.loc
# smtp_server 192.168.200.1
# smtp_connect_timeout 30
router_id mobee
}
***部分是主从之间的3个区别
vrrp_instance VI_2 {
state BACKUP
interface bond0
virtual_router_id 70
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
X.X.X.X VIP的iP地址
}
}
virtual_server x.x.x.x 80 {
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 2400
protocol TCP
real_server Y.Y.Y.Y 80 { 后端web1的ip地址
weight 10
TCP_CHECK {
connect_port 80
connect_timeout 10
}
}
real_server Z.Z.Z.Z 80 { 后端web2的ip地址
weight 10
TCP_CHECK {
connect_port 80
connect_timeout 10
}
}
}
virtual_server X.X.X.X 443 {
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 2400
protocol TCP
real_server Y.Y.Y.Y 443 {
weight 10
TCP_CHECK {
connect_port 443
connect_timeout 10
}
}
real_server Z.Z.Z.Z 443 {
weight 10
TCP_CHECK {
connect_port 443
connect_timeout 10
}
}
}
2后端WEB服务器需要执行的IP脚本
#!/bin/bash
VIP=X.X.X.X
case $1 in
start)
/sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up
/sbin/route add -host $VIP dev lo:0
echo "1" > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" > /proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" > /proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" > /proc/sys/net/ipv4/conf/all/arp_announce
;;
stop)
/sbin/route del -host $VIP dev lo:0
/sbin/ifconfig lo:0 down
echo "0" > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" > /proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" > /proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" > /proc/sys/net/ipv4/conf/all/arp_announce
;;
*)
echo "Usage $0 {start|stop}"
exit 1
;;
esac
原文：http://yelei.blog.51cto.com/8337230/1436542