########################## ########    DR     ####### ########################## 实验一： server4,server5  /etc/init.d/heartbeat stop  yum install -y ldirectord-3.9.5-3.1.x86_64.rpm server4 cd /usr/share/doc/ldirectord-3.9.5/ cp ldirectord.cf /etc/ha.d/ yum install repolist yum install ipvsadm -y ipvsadm -L ipvsadm -A -t 172.25.24.198:80 -s rr ip addr add 172.25.24.198/24 dev eth0 ipvsadm -a 172.25.24.198:80 -r 172.25.24.2:80 -g [root@server4 ~]# ipvsadm -a -t 172.25.24.198:80 -r 172.25.24.2:80 -g [root@server4 ~]# ipvsadm -a -t 172.25.24.198:80 -r 172.25.24.3:80 -g [root@server4 ~]# ipvsadm -l [root@server4 ~]# /etc/init.d/ipvsadm save server2 [root@server2 ~]# /etc/init.d/httpd start [root@server2 ~]# ip addr add 172.25.24.198/32 dev eth0 [root@server2 ~]# vim /etc/httpd/conf/httpd.conf  [listen:80] [root@server2 ~]# yum install arptables [root@server2 ~]# arptables -A IN -d 172.25.24.198 -j DROP [root@server2 ~]# arptables -A OUT -s 172.25.24.198 -j mangle --mangle-ip-s 172.25.24.2 [root@server2 ~]# /etc/init.d/arptables_jf save [root@server2 ~]# vim /etc/sysconfig/arptables  server3 [root@server3 ~]# /etc/init.d/httpd start [root@server3 ~]# ip addr add 172.25.24.198/32 dev eth0 [root@server3 ~]# vim /etc/httpd/conf/httpd.conf  [root@server3 ~]# /etc/init.d/httpd restart [root@server3 ~]# yum install -y arptables_jf.x86_64 [root@server3 ~]# arptables -A IN -d 172.25.24.198 -j DROP [root@server3 ~]# arptables -A OUT -s 172.25.24.198 -j mangle --mangle-ip-s 172.25.24.3 [root@server3 ~]# /etc/init.d/arptables_jf save

测试：

###############

实验二：

server4

vim ldirectord.cf

 

 /etc/init.d/ldirectord start  ip addr del 172.25.24.198/24 dev eth0  vim haresources 

scp haresources ldirectord.cf 172.25.24.5:/etc/ha.d/    

 /etc/init.d/ldirectord start

 /etc/init.d/ldirectord stop

 /etc/init.d/heartbeat start

 /etc/init.d/heartbeat stop