搭建高可用负载均衡DNS系统：DNS部署系列的第四篇 - LVS+Keepalived+Bind的实践
[root@lvs-M ~]#cat /etc/keepalived/keepalived.conf
! ConfigurationFile for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_fromAlexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id lvs_105
}
vrrp_instance VI_WEB {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.40/24
}
}
#############LVSWEB################
virtual_server 192.168.1.40 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
# persistence_timeout 50
protocol TCP
real_server 192.168.1.201 80 {
weight 100
TCP_CHECK {
connect_timeout 8
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 192.168.1.202 80 {
weight 100
TCP_CHECK {
connect_timeout 8
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 192.168.1.203 80 {
weight 100
TCP_CHECK {
connect_timeout 8
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
#############DNSInstance start###############
vrrp_instance VI_DNS {
state BACKUP
interface eth0
virtual_router_id 52
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.30/24
}
}
###########LVSDNS#######################
virtual_server 192.168.1.30 53 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
# persistence_timeout 50
protocol UDP
real_server 192.168.1.107 53 {
weight 100
TCP_CHECK {
connect_timeout 8
nb_get_retry 3
delay_before_retry 3
connect_port 53
}
}
real_server 192.168.1.108 53 {
weight 100
TCP_CHECK {
connect_timeout 8
nb_get_retry 3
delay_before_retry 3
connect_port 53
}
}
}