一、实验环境

 系统:CentOS7.6

 主机:5台 (虚拟机)

  客户端1台:172.16.236.134/24 (NAT网卡),网关指向 172.16.236.185/24(路由服务器)

  路由服务器1台:172.16.236.185/24 (NAT),192.168.214.17/16 (仅主机),附加绑定IP (10.0.0.200/8)

  LVS服务器1台:VIP (10.0.0.100/32,绑定在lo网卡上),DIP (192.168.214.27/16,仅主机),网关指向 192.168.214.17/16(路由服务器)

  RS1服务器1台:VIP (10.0.0.100/32,绑定在lo网卡上),RIP (192.168.214.37/16,仅主机),网关指向 192.168.214.17/16(路由服务器)

  RS2服务器1台:VIP (10.0.0.100/32,绑定在lo网卡上),RIP (192.168.214.47/16,仅主机),网关指向 192.168.214.17/16(路由服务器)

 软件包:ipvsadm,httpd,mod_ssl(光盘yum源)

二、相关实验

1、实现LVS跨网段DR模型

(1) 按网络规划,配置好各主机的IP

 客户端服务器:eth0:172.16.236.134/24,网关 172.16.236.185

 路由器服务器:eth0:172.16.236.185/24,eth1:192.168.214.17/16,网关不需配

 LVS服务器:eth0:192.168.214.27/16,网关 192.168.214.17

 RS1服务器:eth0:192.168.214.37/16,网关 192.168.214.17

 RS2服务器:eth0:192.168.214.47/16,网关 192.168.214.17

(2) 在路由服务器上开启网络转发功能

[root@centos7-17 ~]# vim /etc/sysctl.conf 
net.ipv4.ip_forward=1
[root@centos7-17 ~]# sysctl -p
net.ipv4.ip_forward = 1

(3) 在LVS服务器上安装ipvsadm包

[root@centos7-27 ~]# yum install -y ipvsadm

(4) 在LVS服务器上配置LVS,此处用脚本实现,脚本如下

[root@centos7-27 ~]# vim lvs_dr_vs.sh 
#!/bin/bash

vip='10.0.0.100'    #VIP  
iface='lo:1'  #VIP绑定接口
mask='255.255.255.255'    #VIP子网掩码
port='80'    #端口
rs1='192.168.214.37'    #RS1服务器IP
rs2='192.168.214.47'    #RS2服务器IP
scheduler='wrr'    #调度算法
type='-g'    #LVS类型,-m为nat模式,-g为dr模式,-i为tun模式

case $1 in
start)
        ifconfig $iface $vip netmask $mask #broadcast $vip up
        iptables -F
        ipvsadm -A -t ${vip}:${port} -s $scheduler
        ipvsadm -a -t ${vip}:${port} -r ${rs1} $type -w 1
        ipvsadm -a -t ${vip}:${port} -r ${rs2} $type -w 1
        ;;
stop)
        ipvsadm -C
        ifconfig $iface down
        ;;
*)
        echo "Usage $(basename $0) start|stop"
        exit 1
        ;;
esac
#!/bin/bash

vip='10.0.0.100'
iface='lo:1'
mask='255.255.255.255'
port='80'
rs1='192.168.214.37'
rs2='192.168.214.47'
scheduler='wrr'
type='-g'

case $1 in
start)
        ifconfig $iface $vip netmask $mask #broadcast $vip up
        iptables -F
        ipvsadm -A -t ${vip}:${port} -s $scheduler
        ipvsadm -a -t ${vip}:${port} -r ${rs1} $type -w 1
        ipvsadm -a -t ${vip}:${port} -r ${rs2} $type -w 1
        ;;
stop)
        ipvsadm -C
        ifconfig $iface down
        ;;
*)
        echo "Usage $(basename $0) start|stop"
        exit 1
        ;;
esac
lvs_dr_vs.sh

相关文章:

  • 2021-07-05
  • 2021-07-08
  • 2022-12-23
  • 2022-12-23
  • 2021-11-02
  • 2021-12-01
  • 2021-08-31
  • 2021-12-16
猜你喜欢
  • 2021-04-28
  • 2021-08-28
  • 2021-06-17
  • 2021-12-15
  • 2021-09-10
  • 2021-08-23
相关资源
相似解决方案