设置Proxy代理服务器的VIP和DIP

[root@proxy ~]# cd /etc/sysconfig/network-scripts
[root@proxy network-scripts]# cp ifcfg-eth0{,:}
[root@proxy network-scripts]# vim ifcfg-eth0:
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
NAME=eth0:
DEVICE=eth0:
ONBOOT=yes
IPADDR=192.168.4.15
PREFIX=
[root@proxy network-scripts]# service network restart

设置Web1服务器网络参数

[root@web1 ~]# nmcli connection modify eth0 ipv4.method manual \
ipv4.addresses 192.168.4.100/ connection.autoconnect yes
[root@web1 ~]# nmcli connection up eth0
[root@web1 ~]# cd /etc/sysconfig/network-scripts/
[root@web1 ~]# cp ifcfg-lo{,:}
[root@web1 ~]# vim ifcfg-lo:
DEVICE=lo:
IPADDR=192.168.4.15
NETMASK=255.255.255.255
NETWORK=192.168.4.15
BROADCAST=192.168.4.15
ONBOOT=yes
NAME=lo:
[root@web1 ~]# vim /etc/sysctl.conf
#手动写入如下4行内容
net.ipv4.conf.all.arp_ignore =
net.ipv4.conf.lo.arp_ignore =
net.ipv4.conf.lo.arp_announce =
net.ipv4.conf.all.arp_announce =
#当有arp广播问谁是192.168.4.15时，本机忽略该ARP广播，不做任何回应
#本机不要向外宣告自己的lo回环地址是192.168.4.
[root@web1 ~]# sysctl -p

设置Web2服务器网络参数

[root@web2 ~]# nmcli connection modify eth0 ipv4.method manual \
ipv4.addresses 192.168.4.200/ connection.autoconnect yes
[root@web2 ~]# nmcli connection up eth0

[root@web2 ~]# cd /etc/sysconfig/network-scripts/
[root@web2 ~]# cp ifcfg-lo{,:}
[root@web2 ~]# vim ifcfg-lo:
DEVICE=lo:
IPADDR=192.168.4.15
NETMASK=255.255.255.255
NETWORK=192.168.4.15
BROADCAST=192.168.4.15
ONBOOT=yes
NAME=lo:

[root@web2 ~]# vim /etc/sysctl.conf
#手动写入如下4行内容
net.ipv4.conf.all.arp_ignore =
net.ipv4.conf.lo.arp_ignore =
net.ipv4.conf.lo.arp_announce =
net.ipv4.conf.all.arp_announce =
#当有arp广播问谁是192.168.4.15时，本机忽略该ARP广播，不做任何回应
#本机不要向外宣告自己的lo回环地址是192.168.4.
[root@web2 ~]# sysctl -p

[root@web2 ~]# systemctl restart network