ip规划：
2个虚拟IP为：192.168.2.18 192.168.2.30 keepalived 本身的DIP:192.168.2.20 192.168.2.30
# yum install keepalived
# cp /etc/keepalived/keepalived.conf keepalived.conf.bak
! 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 LVS_DEVEL
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.2.18 brd 192.168.2.18 dev eth0 label eth0:0
}
}
vrrp_instance VI_2 {
state BAKCUP
interface eth0
virtual_router_id 61
priority 99
advert_int 1
authentication {
auth_type PASS
auth_pass 2222
}
virtual_ipaddress {
192.168.2.19 brd 192.168.2.19 dev eth0 label eth0:0
}
}
real_server 192.168.2.18 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
# persistence_timeout 50
protocol TCP
real_server 192.168.2.11 80 {
weight 1
HTTP_GET {
url {
path /
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 192.168.2.10 80 {
weight 1
HTTP_GET {
url {
path /index.html
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
real_server 192.168.2.19 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
# persistence_timeout 50
protocol TCP
real_server 192.168.2.11 80 {
weight 1
HTTP_GET {
url {
path /
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 192.168.2.10 80 {
weight 1
HTTP_GET {
url {
path /index.html
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
原文：http://wskfnso.blog.51cto.com/4025557/1761568