LVS实验

环境配置

需要4台虚拟机

client 作为测试

lvs 需配置

rs1和rs2为客户端

1.配置ip地址

client ip为12.25.254.111 NAT模式

lvs ip有两个，172.25.254.100和192.168.0.100 两张网卡：NAT和仅主机

rs1 ip：192.168.0.10 仅主机

 rs2 ip：192.168.0.20 仅主机

2.rs1配置

开启httpd，关闭火墙，把ip地址写进index.html中

 用lvs检测是否写入

3.rs2配置

与rs1一致

lvs检测

4.lvs配置

sysctl  -a | grep ip_forwarld

将0改为1

安装ipvsadm 

增加策略 

[root@huazi ~]# ipvsadm -A -t 172.25.254.100:80 -s rr
[root@huazi ~]# ipvsadm -E -t 172.25.254.100:80 -s wrr
[root@huazi ~]# ipvsadm -E -t 172.25.254.100:80 -s wrr -p 360
[root@huazi ~]# ipvsadm -A -f 66 -s rr
[root@huazi ~]# ipvsadm -D -f 66
[root@huazi ~]# ipvsadm -C[root@huazi ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags-> RemoteAddress:Port           Forward Weight ActiveConn InActConn[root@huazi ~]# ipvsadm -a -t 172.25.254.100:80 -r 192.168.0.10 -m
[root@huazi ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags-> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  172.25.254.100:80 rr-> 192.168.0.10:80              Masq    1      0          0[root@huazi ~]# ipvsadm -a -t 172.25.254.100:80 -r 192.168.0.20 -g
[root@huazi ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags-> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  172.25.254.100:80 rr-> 192.168.0.10:80              Masq    1      0          0-> 192.168.0.20:80              Route   1      0          0[root@huazi ~]# ipvsadm -e -t 172.25.254.100:80 -r 192.168.0.10 -i
[root@huazi ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags-> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  172.25.254.100:80 rr-> 192.168.0.10:80              Tunnel  1      0          0-> 192.168.0.20:80              Route   1      0          0[root@huazi ~]# ipvsadm -e -t 172.25.254.100:80 -r 192.168.0.10 -i -w 2
[root@huazi ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags-> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  172.25.254.100:80 rr-> 192.168.0.10:80              Tunnel  2      0          0-> 192.168.0.20:80              Route   1      0          0

实验

1.lvs添加路由策略

 2.用client测试

连接不上，有可能没关闭火墙

3. rs1和rs2关闭火墙

rs1：

rs2： 

再用client测试发现无任何显示

4.编辑rs1和rs2里面 /etc/NetworkManager/system-connections/ens160.nmconnection

rs1：

rs2：

再用client测试

5.测试成功