负载均衡集群 LVS
此次讲述一下LVS-DR的另一个模型
DIP、RIP属于私有IP地址，VIP属于公网IP，即三者不属于同一网段
架构图：
http://s3.运维网.com/wyfs02/M00/25/39/wKioL1NaW2jAQDxTAAGJ-qZG5gI137.jpg
集群配置
1、Director配置
DIP配置
#ifconfig eth0 192.168.0.170/24 up
#route add default gw 192.168.0.254
#ifconfighttp://s3.运维网.com/wyfs02/M02/25/39/wKiom1NaXF_CTGCgAAEBJhDxo88307.jpg
Director上配置VIP
#ifconfig eth0:0 172.16.249.100 netmask 255.255.255.255 broadcast 172.16.249.100 uphttp://s3.运维网.com/wyfs02/M01/25/39/wKiom1NaXTbgWRZkAABo5S7Vt0c575.jpg
#route add -host 172.16.249.100 dev eth0:0 添加主机路由
#route-n
http://s3.运维网.com/wyfs02/M00/25/39/wKioL1NaXWGy6xglAACZt31Epm4747.jpg
2、RS1配置
RS1内核参数配置
#echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
#echo 1> /proc/sys/net/ipv4/conf/eth0/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
#echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
配置RS1的RIP
#ifconfig eth0 192.168.0.171/24 up
#route add default gw 192.168.0.254
http://s3.运维网.com/wyfs02/M00/25/39/wKiom1NaXlTxk0bwAAD-iYsFI_I366.jpg
配置RS1的VIP
#ifconfig lo:0 172.16.249.100 netmask 255.255.255.255 broadcast 172.16.249.100 up
#route add -host 172.16.249.100 dev lo:0
#ifconfig
http://s3.运维网.com/wyfs02/M00/25/39/wKioL1NaXxnwEL_ZAABRZcom34g858.jpg
#route -n
http://s3.运维网.com/wyfs02/M02/25/39/wKiom1NaX1LRZ9EVAACP3pZjxzM143.jpg
配置web
#vim /var/www/html
welcome to RS1!
#service httpd restart
关闭防火墙
#serviceiptables stop
3、 RS2配置
RS2内核参数配置
#echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
#echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
#echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
配置DIP
#ifconfig eth0 192.168.0.172/24 up
#route add default gw 192.168.0.254
#ifconfig
http://s3.运维网.com/wyfs02/M01/25/39/wKioL1NaYFvwayrSAAD0S47alUQ690.jpg
配置VIP
#ifconfig lo:0 172.16.249.100 netmask 255.255.255.255 broadcast 172.16.249.100 up
#ifconfighttp://s3.运维网.com/wyfs02/M02/25/39/wKioL1NaYRnSiceLAABLiQzHhY0741.jpg
#route add -host 172.16.249.100 dev lo:0
#route -n
http://s3.运维网.com/wyfs02/M00/25/39/wKioL1NaYSfA5uUrAACCAytJcIg505.jpg
4、 Director 调度器设置集群服务及RS
#ipvsadm -A -t 172.16.249.100:80 -s rr
#ipvsadm -a -t 172.16.249.100:80 -r 192.168.0.171 -g
#ipvsadm -a -t 172.16.249.100:80 -r 192.168.0.172 -g
#ipvsadm -L -n
http://s3.运维网.com/wyfs02/M00/25/39/wKioL1NaYdzhh5aNAACMlfBBiGY965.jpg
5、 客户端测试
CIP：192.168.1.100
NETMASK：255.255.255.0
GATEWAY: 192.168.1.254
http://s3.运维网.com/wyfs02/M02/25/39/wKiom1NaYrvAu4uRAACKXd9DE3A315.jpg
刷新
http://s3.运维网.com/wyfs02/M00/25/39/wKiom1NaYs_xu7eFAACK-oRaWXk587.jpg
总结：LVS-DR 集群模式（二）已成功实现，rr算法已成功实现！ PS：水平有限，有问题请指出共同丰富！
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