lvs+keepalived
需要四臺虛擬機
LVS 主:
DIP:10.0.0.31
VIP: 10.0.0.99
LVS 備
DIP:10.0.0.32
VIP: 10.0.0.99
WEB1:
RIP:10.0.0.33
VIP: 10.0.0.99
WEB2:
RIP:10.0.0.34
VIP: 10.0.0.99
LVS主
[root@ localhost ~]# yum -y install ipvsadm keepalived
編輯了keepalived配置文件
[root@ localhost ~]# vim /etc/keepalived/keepalived.conf
內容如下:
vrrp_instance VI_1 {
state MASTER \\初始身份
interface eth0 \\VIP
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.189.181
}
}
virtual_server 192.168.189.181 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
protocol TCP
real_server 192.168.189.163 80 {
weight 1
TCP_CHECK {
connect_port 80
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 192.168.189.164 80 {
weight 1
TCP_CHECK {
connect_port 80
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
修改完畢後直接保存退出啓動keepalived
[root@ localhost ~]# service keepalived restart
LVS備份主機
配置和主基本相同,只是初始狀態和優先級需要修改下
[root@ localhost ~]# scp [email protected]:/etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf
編輯完畢保存退出啓動keepalived即可
[root@ localhost ~]# service keepalived restart
查看LVS 主和LVS 備
查看VIP
[root@ localhost ~]# ip a
查看虛擬服務器列表
[root@ localhost ~]# ipvsadm -Ln
WEB1和WEB2同操作
web服務器的配置和之前DR的配置相同
安裝httpd
[root@ localhost ~]# yum -y install httpd
# 創建測試頁面
[root@ localhost ~]# echo 111111 > /var/www/html/index.html
啓動httpd
[root@ localhost ~]# service httpd restart
配置內容如下:**
[root@ localhost ~]# vim ifcfg-eth0:0
DEVICE=eth0:0
ONBOOT=yes
BOOTPROTO=static
IPADDR=10.0.0.99
NETMASK=255.255.255.252
添加路由規則
[root@ localhost ~]# echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
[root@ localhost ~]# echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
[root@ localhost ~]# echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
[root@ localhost ~]# echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
[root@ localhost ~]# route add 10.0.0.99 dev lo