1.142:80 Masq 1 0 0
-> 192.168.111.143:80 Masq 1 0 0
[root@DR ~]# ipvsadm -Sn > /etc/sysconfig/ipvsadm
[root@DR ~]# systemctl restart ipvsadm
[root@DR ~]# systemctl enable ipvsadm
客户端进行测试，因为选择的是轮询(rr)
[root@client ~]# curl http://172.25.0.100
RS2
[root@client ~]# curl http://172.25.0.100
RS1
[root@client ~]# curl http://172.25.0.100
RS2
[root@client ~]# curl http://172.25.0.100
RS1
2.搭建搭建lvs-dr模式的http负载集群
环境说明：
| 主机名 |
主机作用 |
IP/DIP |
VIP |
| DR |
LVS服务器（DR） |
192.168.111.141 |
lo:192.168.111.200 |
| RS1 |
apache服务器1（RS） |
192.168.111.142 |
lo:192.168.111.200 |
| RS2 |
apache服务器2（RS） |
192.168.111.143 |
lo:192.168.111.200 |
| client |
客户端 （用于测试） |
192.168.111.144 |
客户端不需要VIP |
配置DR
#关闭防火墙和selinux
[root@DR ~]# sed -ri 's/^(SELINUX=).*/\1disabled/g' /etc/selinux/config
[root@DR ~]# setenforce 0
[root@DR ~]# systemctl disable --now firewalld
#配置lo网卡ip
[root@DR ~]# dnf -y install net-tools
[root@DR ~]# ifconfig lo 192.168.111.200/32 broadcast 192.168.111.200 netmask 255.255.255.255 up
[root@DR ~]# ip a |grep lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 192.168.111.200/0 brd 192.168.111.200 scope global lo
#永久生效lo网卡配置
[root@DR ~]# echo "ifconfig lo 192.168.111.200/32 broadcast 192.168.111.200 netmask 255.255.255.255 up" >> /etc/rc.d/rc.local
[root@DR ~]# chmod +x /etc/rc.d/rc.local
RS1配置
#关闭防火墙和selinux
[root@RS1 ~]# sed -ri 's/^(SELINUX=).*/\1disabled/g' /etc/selinux/config
[root@RS1 ~]# setenforce 0
[root@RS1 ~]# systemctl disable --now firewalld
#RS1上配置内核参数
[root@RS1 ~]# vim /etc/sysctl.conf
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
[root@RS1 ~]# sysctl -p
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
#配置VIP
[root@RS1 ~]# dnf -y install net-tools
[root@RS1 ~]# ifconfig lo 192.168.111.200/32 broadcast 192.168.111.200 netmask 255.255.255.255 up
#永久生效lo网卡配置
[root@RS1 ~]# echo "ifconfig lo 192.168.111.200/32 broadcast 192.168.111.200 netmask 255.255.255.255 up" >> /etc/rc.d/rc.local
[root@RS1 ~]# chmod +x /etc/rc.d/rc.local
#添加路由
[root@RS1 ~]# route add -host 192.168.111.200/32 dev lo
#安装httpd服务，然后配置好网站首页
[root@RS1 ~]# dnf -y install httpd
[root@RS1 ~]# echo "RS1" > /var/www/html/index.html
[root@RS1 ~]# systemctl enable --now httpd
RS2配置
#关闭防火墙和selinux
[root@RS2 ~]# sed -ri 's/^(SELINUX=).*/\1disabled/g' /etc/selinux/config
[root@RS2 ~]# setenforce 0
[root@RS2 ~]# systemctl disable --now firewalld
#RS2上配置内核参数
[root@RS2 ~]# vim /etc/sysctl.conf
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
[root@RS2 ~]# sysctl -p
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
#配置VIP
[root@RS2 ~]# dnf -y install net-tools
[root@RS2 ~]# ifconfig lo 192.168.111.200/32 broadcast 192.168.111.200 netmask 255.255.255.255 up
#永久生效lo网卡配置
[root@RS2 ~]# echo "ifconfig lo 192.168.111.200/32 broadcast 192.168.111.200 netmask 255.2