LVS/NAT 配置
三台服务器一台作为director, 两台作为real server
Director 有一个外网ip(192.168.31.166) 和一个内网ip(192.168.21.166)
两个real server上只有内网ip(192.168.21.100)和(192.168.21.101) 并且需要把两个real server的内网网关设置为director的内网ip(192.168.21.166)
两个real server 上都安装httpd: yum install -y nginx
Director上安装ipvsadm yum install -y ipvsadm
Direcotr 上 vim/usr/local/sbin/lvs_nat.sh
//增加:
#! /bin/bash # director 服务器上开启路由转发功能: echo 1 > /proc/sys/net/ipv4/ip_forward # 关闭icmp的重定向 echo 0 >/proc/sys/net/ipv4/conf/all/send_redirects echo 0 > /proc/sys/net/ipv4/conf/default/send_redirects echo 0 >/proc/sys/net/ipv4/conf/eth0/send_redirects echo 0 >/proc/sys/net/ipv4/conf/eth1/send_redirects
# director 设置nat防火墙
iptables -t nat -F iptables -t nat -X iptables -t nat -A POSTROUTING -s192.168.21.0/24 -j MASQUERADE # director设置ipvsadm IPVSADM=‘/sbin/ipvsadm‘ $IPVSADM -C $IPVSADM -A -t 192.168.31.166:80 -s lc -p300 $IPVSADM -a -t 192.168.31.166:80 -r192.168.21.100:80 -m -w 1 $IPVSADM -a -t 192.168.31.166:80 -r192.168.21.101:80 -m -w 1
直接运行这个脚本就可以完成lvs/nat的配置了:
/bin/bash /usr/local/sbin/lvs_nat.sh
通过浏览器测试两台机器上的web内容,为了区分开,我们可以把nginx的默认页修改一下:
rs1上: echo"rs1rs1" >/usr/share/nginx/html/index.html rs2上: echo"rs2rs2" >/usr/share/nginx/html/index.html
本文出自 “Linux” 博客,请务必保留此出处http://syklinux.blog.51cto.com/9631548/1741458
原文地址:http://syklinux.blog.51cto.com/9631548/1741458