下載ipvsadm和keepalived包到/usr/local/src
ln -s /usr/src/kernels/2.6.18-194.el5-x86_64/ /usr/src/linux
cd /usr/local/src/
tar -zxvf ipvsadm-1.25.tar.gz
cd ipvsadm-1.25
vi libipvs/Makefile
去掉netlink庫的依賴：去掉libipvs/Makefile的CFLAGS += -DLIBIPVS_USE_NL，去掉Makefile的LIBS += -lnl
make;make install
ipvsadm -v檢查是否安裝完成
tar zxvf keepalived-1.2.1.tar.gz
cd keepalived-1.2.1
./configure
make;make install
cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/
mkdir /etc/keepalived
cp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/
cp /usr/local/sbin/keepalived /usr/sbin/
vi /etc/keepalived/keepalived.conf
global_defs {
notification_email {
}
notification_email_from root@localhost
smtp_server 127.0.0.1
router_id LVS_DEVEL （BACKUP：router_id LVS_DEVEL_2）
}
vrrp_instance VI_1 {
state MASTER (BACKUP改爲BACKUP)
interface eth0
virtual_router_id 55
priority 100 (BACKUP改爲99)
advert_int 1
authentication {
auth_type PASS
auth_pass kk1111
}
virtual_ipaddress {
192.168.8.3
}
}
virtual_server 192.168.8.3 3306 {
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 60
protocol TCP
real_server 192.168.8.31 3306 {
weight 3
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 3306
}
}
real_server 192.168.8.32 3306 {
weight 3
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 3306
}
}
}
service keepalived start
ipvsadm -L -n
然後在real_server上配置虛擬IP
#!/bin/bash
#description:start realserver
#chkconfig 235 26 26
VIP1=192.168.8.6
#/etc/rc.d/init.d/functions
case "$1" in
start)
echo " start LVS of REALServer"
/sbin/ifconfig lo:0 $VIP1 broadcast $VIP1 netmask 255.255.255.255 up
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
;;
stop)
/sbin/ifconfig lo:0 down
echo "close LVS Directorserver"
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac
將此腳本加入到開機啓動。