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1.下载ipvsadm
  http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.24.tar.gz
  $ tar vzxf ipvsadm-1.24.tar.gz
  $ sudo ln -s /usr/src/kernels/2.6.18-8.el5-x86_64/ /usr/src/linux
  $ cd ipvsadm-1.24
  $ make
  $ sudo make install

  检查：$ sudo ipvsadm -v
        ipvsadm v1.24 2005/12/10 (compiled with popt and IPVS v1.2.1)
      
2.配置
  a.  echo "1" >/proc/sys/net/ipv4/ip_forward
      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
  b.  清除ipvsadm表
      $ sudo ipvsadm -C
  c.  使用ipvsadm安装LVS服务
      $ sudo ipvsadm -A -t 192.168.192.168:80 -s rr   ##192.168.192.168是虚拟IP
  d.  增加realserver
      $ sudo ipvsadm -a -t 192.168.192.168:80 -r 192.168.1.11:80 -m -w 1
      $ sudo ipvsadm -a -t 192.168.192.168:80 -r 192.168.1.128:80 -m -w 1
  e.  测试
      browser open 192.168.192.168，同时ipvsadm打开。
      $ sudo ipvsadm
      IP Virtual Server version 1.2.1 (size=4096)
      Prot LocalAddress:Port Scheduler Flags
        -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
      TCP  192.168.192.168:http rr
        -> 192.168.1.128:http           Masq    1      0          0
        -> 192.168.1.11:http            Masq    1      0          0

作者：jackxiang@向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除
地址：https://jackxiang.com/post/2723/
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