查看“LVS-DR脚本管理配置”的源代码

[[File:lvs-5.png|500px|center|border]]

Director配置 

操作IP 192.168.0.108,配置VIP(创建eth0:0并配置)

 cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:0
 vi /etc/sysconfig/network-scripts/ifcfg-eth0:0
 ...
 IPADDR=192.168.0.108
 NETMASK=255.255.255.0
 systemctl restart network

安装ipvsadm并配置

 yum install -y ipvsadm
 
 ipvsadm -A -t 192.168.0.108 -s rr
 ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.133 -g
 ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.134 -g
 
 [root@localhost ~]# ipvsadm -ln
 IP Virtual Server version 1.2.1 (size=4096)
 Prot LocalAddress:Port Scheduler Flags
   -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
 TCP  192.168.0.108:80 rr
   -> 192.168.0.133:80             Route   1      0          0
   -> 192.168.0.134:80             Route   1      0          0
 #防火墙设置
 
 firewall-cmd --permanent --add-port=80/tcp
 forewall-cmd --reload

两台apache配置

 yum install -y httpd
 systemctl enable httpd
 systemctl start httpd
 cp /etc/sysconfig/network-scripts/ifcfg-lo /etc/sysconfig/network-scripts/ifcfg-lo:1
 
 vi /etc/sysconfig/network-scripts/ifcfg-lo:1
 DEVICE=lo:1
 IPADDR=192.168.0.108
 NETMASK=255.255.255.255
 # If you're having problems with gated making 127.0.0.0/8 a martian,
 # you can change this to something else (255.255.255.255, for example)
 ONBOOT=yes
 NAME=loopback
 
 systemctl restart network

 firewall-cmd --permanent --add-port=80/tcp
 
 #关闭VIP ARP响应
 
 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

服务器添加首页

 echo abctest192.168.0.134 >/var/www/html/index.html
 echo edf is test192.168.0.133 >/var/www/html/index.html

测试
 [root@lvs ~]# curl http://192.168.0.108
 edf is test192.168.0.133
 [root@lvs ~]# curl http://192.168.0.108
 abctest192.168.0.134
 [root@lvs ~]# curl http://192.168.0.108
 edf is test192.168.0.133
 [root@lvs ~]# curl http://192.168.0.108
 edf is test192.168.0.133

=== 脚本实现 ===

lvs管理器上的脚本

 #!/bin/bash
 #lvs管理器配置，lvs之DR模式
 # vim /usr/local/sbin/lvs_nat.sh
 echo 1 > /proc/sys/net/ipv4/ip_forward
 ipv=/sbin/ipvsadm
 vip=192.168.0.108
 rs1=192.168.0.133
 rs2=192.168.0.134
 #添加vip网卡之eth0:0
 ifconfig eth0:0 down
 ifconfig eth0:0 $vip broadcast $vip netmask 255.255.255.255 up
 route add -host $vip dev eth0:0
 ipvsadm -C
 ipvsadm -A -t 192.168.0.108 -s rr
 ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.133 -g
 ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.134 -g
 #关闭VIP ARP响应
 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 
两台apache上的配置脚本

 #!/bin/bash
 # vim /usr/local/sbin/lvs_dr_rs.sh
 vip=192.168.0.108
 #添加lo:1
 ifconfig lo:1 $vip broadcast $vip netmask 255.255.255.255 up
 route add -host $vip lo:1
 #关闭VIP ARP响应
 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 

[[分类:lvs]]