第二十五周学习报告

1、LVS的跨网络DR实现

网络配置
client   192.168.120.102
route  10.0.0.103/192.168.120.100/172.16.0.200
lvs   10.0.0.10
rs1   10.0.0.100
rs2   10.0.0.101

http服务配置
RS1
[root@zuoye1 ~]# echo `hostname -I` > /var/www/html/index.html
[root@zuoye1 ~]# systemctl start httpd
[root@zuoye1 ~]# curl 10.0.0.100
10.0.0.100
RS2
[root@zuoye2 ~]# echo `hostname -I` > /var/www/html/index.html
[root@zuoye2 ~]# systemctl start httpd
[root@zuoye2 ~]# curl 10.0.0.101
10.0.0.101

lvs 配置
RS1
[root@zuoye1 ~]# echo 1 >   /proc/sys/net/ipv4/conf/all/arp_ignore
[root@zuoye1 ~]# echo 2 >   /proc/sys/net/ipv4/conf/all/arp_announce 
[root@zuoye1 ~]# echo 1 >   /proc/sys/net/ipv4/conf/lo/arp_ignore
[root@zuoye1 ~]# echo 2 >   /proc/sys/net/ipv4/conf/lo/arp_announce 
[root@zuoye1 ~]# ifconfig lo:1 172.16.0.100/32

RS2
[root@zuoye2 ~]# echo 1 >   /proc/sys/net/ipv4/conf/all/arp_ignore
[root@zuoye2 ~]# echo 2 >   /proc/sys/net/ipv4/conf/all/arp_announce 
[root@zuoye2 ~]# echo 1 >   /proc/sys/net/ipv4/conf/lo/arp_ignore
[root@zuoye2 ~]# echo 2 >   /proc/sys/net/ipv4/conf/lo/arp_announce 
[root@zuoye2 ~]# ifconfig lo:1 172.16.0.100/32

LVS
[root@rac1 ~]# ifconfig lo:1 172.16.0.100/32
[root@rac1 ~]# yum install -y ipvsadm
[root@rac1 ~]# ipvsadm -A -t 172.16.0.100:80 -s wrr
[root@rac1 ~]# ipvsadm -a -t 172.16.0.100:80 -r 10.0.0.100:80 -g -w 1
[root@rac1 ~]# ipvsadm -a -t 172.16.0.100:80 -r 10.0.0.101:80 -g -w 1
[root@rac1 ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  172.16.0.100:80 wrr
  -> 10.0.0.100:80                Route   1      0          0         
  -> 10.0.0.101:80                Route   1      0          0  

测试
[root@zuoye3 ~]# curl 172.16.0.100
10.0.0.101
[root@zuoye3 ~]# curl 172.16.0.100
10.0.0.100
[root@zuoye3 ~]# curl 172.16.0.100
10.0.0.101
[root@zuoye3 ~]# curl 172.16.0.100
10.0.0.100
[root@zuoye3 ~]# curl 172.16.0.100
10.0.0.101
[root@zuoye3 ~]# curl 172.16.0.100
10.0.0.100