centos中lvs安装配置方法详解
一、lvs-nat模式
网络配置：
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代码如下:
lvs-server eth0 ：host-only adapter 192.168.56.101
lvs-server eth1 ：Internal 192.168.0.1
real-server-1 eth0：Internal 192.168.0.2
real-server-2 eth0：Internal 192.168.0.3
lvs-server：
1、安装ipvsadm软件
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代码如下:
yum -y install ipvsadm*
echo 1 > /proc/sys/net/ipv4/ip_forward 路由器功能，ip转发
ipvsadm -C
ipvsadm -At 192.168.56.101:80 -s rr 轮叫模式
ipvsadm -at 192.168.56.101:80 -r 192.168.0.2 -m
ipvsadm -at 192.168.56.101:80 -r 192.168.0.3 -m
ipvsadm -L -n
2、real-server-1：
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代码如下:
ifconfig eth0 192.168.0.2 netmask 255.255.255.0
route add default gw 192.168.0.1
3、real-server-2
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代码如下:
ifconfig eth0 192.168.0.3 netmask 255.255.255.0
route add default gw 192.168.0.1
route -n 查看路由表
二、lvs-ipturn
网络配置：
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代码如下:
lvs-server eth0：host-only adapter 192.168.56.101
real-server-1 eth0：host-only adapter 192.168.56.102
real-server-2 eth0：host-only adapter 192.168.56.103
lvs-server：
配置虚拟ip即vip
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代码如下:
ifconfig tunl0 192.168.56.10 netmask 255.255.255.255 up
route add -host 192.168.56.10 dev tunl0</p> <p>ivsadm -C
ipvsadm -At 192.168.56.10:80 -s rr
ipvsadm -at 192.168.56.10:80 -r 192.168.56.102 -i
ipvsadm -at 192.168.56.10:80 -r 192.168.56.103 -i
ipvsadm -L -n
real-server-1：
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代码如下:
ifconfig tunl0 192.168.56.10 netmask 255.255.255.255 up
route add -host 192.168.56.10 dev tunl0
echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
real-server-2：
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代码如下:
ifconfig tunl0 192.168.56.10 netmask 255.255.255.255 up
route add -host 192.168.56.10 dev tunl0
echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
三、lvs-dr
网络配置：
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代码如下:
lvs-server eth0：host-only adapter 192.168.56.101</p> <p>real-server-1 eth0：host-only adapter 192.168.56.102</p> <p>real-server-2 eth0：host-only adapter 192.168.56.103</p> <p>lvs-server：</p> <p>ifconfig eth0:0 192.168.56.10 netmask 255.255.255.255</p> <p>route add -host 192.168.56.10 dev eth0:0
ipvs:
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代码如下:
ipvsadm -C ipvsadm -At 192.168.56.10:80 -s rr ipvsadm -at 192.168.56.10:80 -r 192.168.56.102 -g ipvsadm -at 192.168.56.10:80 -r 192.168.56.103 -g ipvsadm -L -n</p> <p>real-server-1： ifconfig lo:0 192.168.56.10 netmask 255.255.255.255 route add -host 192.168.56.10 dev lo:0 echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce</p> <p>real-server-2： ifconfig lo:0 192.168.56.10 netmask 255.255.255.255 route add -host 192.168.56.10 dev lo:0 echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
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