[root@master ~]# yum install -y ipvsadm

[root@master ~]# cd /etc/sysconfig/network-scripts/

[root@master network-scripts]# cp ifcfg-eth0 ifcfg-eth:

[root@master network-scripts]# vim ifcfg-eth0:1 #只需修改绿色部分三处，其他不要动

DEVICE=eth0:

TYPE=Ethernet

UUID=a186cc9d-8d79--a180-a1b17d884a7b

ONBOOT=yes

NM_CONTROLLED=yes

BOOTPROTO=none

HWADDR=:0C::4D::

IPADDR=192.168.30.130

PREFIX=

GATEWAY=192.168.30.2

DNS1=119.29.29.29

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="System eth0:1"

重启网络服务

[root@master ~]# service network restart

Shutting down interface eth0:  Device state:  (disconnected)

                                                           [  OK  ]

Shutting down interface eth1:                              [  OK  ]

Shutting down loopback interface:                          [  OK  ]

Bringing up loopback interface:                            [  OK  ]

Bringing up interface eth0:  Active connection state: activated

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/

                                                           [  OK  ]

[root@master ~]# ifconfig

eth0      Link encap:Ethernet  HWaddr :0C::4D::

          inet addr:192.168.30.140  Bcast:192.168.30.255  Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fe4d:/ Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:  Metric:

          RX packets: errors: dropped: overruns: frame:

          TX packets: errors: dropped: overruns: carrier:

          collisions: txqueuelen:

          RX bytes: (8.4 KiB)  TX bytes: (8.0 KiB)

eth0:    Link encap:Ethernet  HWaddr :0C::4D::  #MAC地址一定要与eth0的一样

          inet addr:192.168.30.130  Bcast:192.168.30.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:  Metric:

确保这里是0

[root@master ~]# sysctl -p

net.ipv4.ip_forward =

..........

添加规则

[root@master ~]# ipvsadm -A -t 192.168.30.130: -s rr

[root@master ~]# ipvsadm -a -t 192.168.30.130: -r 192.168.30.131 -g

[root@master ~]# ipvsadm -a -t 192.168.30.130: -r 192.168.30.132 -g

[root@master ~]# ipvsadm -L -n

IP Virtual Server version 1.2. (size=)

Prot LocalAddress:Port Scheduler Flags

  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn

TCP  192.168.30.130: rr

  -> 192.168.30.131:            Route

  -> 192.168.30.132:            Route

保存规则

[root@master ~]# /etc/init.d/ipvsadm save

ipvsadm: Saving IPVS table to /etc/sysconfig/ipvsadm:      [  OK  ]

生成ifcfg-lo:1文件

[root@node- ~]# cd /etc/sysconfig/network-scripts/

[root@node- network-scripts]# cp ifcfg-lo ifcfg-lo:

[root@node- network-scripts]# vim ifcfg-lo:

DEVICE=lo:

IPADDR=192.168.30.130

NETMASK=255.255.255.255

# If you're having problems with gated making 127.0.0.0/8 a martian,

# you can change this to something else (255.255.255.255, for example)

ONBOOT=yes

NAME=loopback

[root@node- ~]# vim /etc/sysctl.conf  #末未添加

net.ipv4.conf.eth0.arp_ignore =

net.ipv4.conf.eth0.arp_announce =

[root@node- ~]# sysctl -p  #使立即生效

net.ipv4.ip_forward =

.....

net.ipv4.conf.eth0.arp_ignore =

net.ipv4.conf.eth0.arp_announce = 

[root@node- ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

GATEWAY=192.168.30.2

#网关修改为指向外网出口的路由器IP

[root@node- ~]# echo "<h1>This is the node-1 Web-Server:192.168.17.131</h1>" > /var/www/html/index.html 

[root@node- ~]# cd /etc/sysconfig/network-scripts/

[root@node- network-scripts]# cp ifcfg-lo ifcfg-lo:

[root@node- network-scripts]# vim ifcfg-lo:

DEVICE=lo:

IPADDR=192.168.30.130

NETMASK=255.255.255.255

# If you're having problems with gated making 127.0.0.0/8 a martian,

# you can change this to something else (255.255.255.255, for example)

ONBOOT=yes

NAME=loopback

[root@node- ~]# service network restart

Shutting down interface eth0:  Device state:  (disconnected)

                                                           [  OK  ]

Shutting down interface eth1:                              [  OK  ]

Shutting down loopback interface:                          [  OK  ]

Bringing up loopback interface:                            [  OK  ]

Bringing up interface eth0:  Active connection state: activated

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/

                                                           [  OK  ]

[root@node- ~]# ifconfig

eth0      Link encap:Ethernet  HWaddr :::2F::4D

          inet addr:192.168.30.132  Bcast:192.168.30.255  Mask:255.255.255.0

          inet6 addr: fe80:::56ff:fe2f:844d/ Scope:Link

...................

lo:      Link encap:Local Loopback

          inet addr:192.168.30.130  Mask:255.255.255.255

          UP LOOPBACK RUNNING  MTU:  Metric:

[root@node- ~]# echo "<h1>This is the node-2 Web-Server:192.168.17.132</h1>" > /var/www/html/index.html

[root@node- ~]# service httpd restart

Stopping httpd:                                            [  OK  ]

Starting httpd:                                            [  OK  ]