LVS使用

色胃康胶囊

　　先查询一下当前系统的版本号信息:uname -a

　　ls /usr/src/linux



备注：

假如在链接没建立成功的情况下，会闪



干掉它，然后重新建立链接



ln -s /usr/src/kernels/2.6.18-194.el5-i686 /usr/src/linux





下载：wget http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.24.tar.gz

解压：tar zxvf ipvsadm-1.24.tar.gz

安装：make && make install

备注启动脚本：

（lvs-dr shell）






#!/bin/bash
# description: start LVS of DirectorServer
# website director vip.
SNS_VIP=192.168.2.138
SNS_RIP1=192.168.2.137
#SNS_RIP2=61.164.122.10
. /etc/rc.d/init.d/functions
logger $0 called with $1
case "$1" in
start)
/sbin/ipvsadm --set 30 5 60
/sbin/ifconfig eth0:0 $SNS_VIP broadcast $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP up
/sbin/route add -host $SNS_VIP dev eth0:0
/sbin/ipvsadm -A -t $SNS_VIP:80 -s wrr -p 3
/sbin/ipvsadm -a -t $SNS_VIP:80 -r $SNS_RIP1:80 -g -w 1
#/sbin/ipvsadm -a -t $SNS_VIP:80 -r $SNS_RIP2:80 -g -w 1
touch /var/lock/subsys/ipvsadm >/dev/null 2>&1
;;
stop)
/sbin/ipvsadm -C
/sbin/ipvsadm -Z
ifconfig eth0:0 down
route del $SNS_VIP
rm -rf /var/lock/subsys/ipvsadm >/dev/null 2>&1
echo "ipvsadm stoped"
;;
status)
if [ ! -e /var/lock/subsys/ipvsadm ];then
echo "ipvsadm stoped"
exit 1
else
echo "ipvsadm OK"
fi
;;
*)
echo "Usage: $0 {start|stop|status}"
exit 1
esac
exit 0
View Code　　启动：
　　sh lvs-dr.sh start


访问：

http://192.168.2.137/



http://192.168.2.138/







可以看到对外来说，访问虚拟ip跟访问真是ip是一样的，这样子就实现了负载多个主机的情况；对前端程序而已访问的还是没变化；

这是我们之前配置haproxy的访问：







备注:

用在realserver的shell脚本：






#!/bin/bash
# description: Config realserver lo and apply noarp
#Written by :NetSeek http://www.linuxtone.org

SNS_VIP=192.168.1.210
. /etc/rc.d/init.d/functions
case "$1" in
start)
ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP
/sbin/route add -host $SNS_VIP 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
sysctl -p >/dev/null 2>&1
echo "RealServer Start OK"
;;
stop)
ifconfig lo:0 down
route del $SNS_VIP >/dev/null 2>&1
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 "RealServer Stoped"
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac
exit 0
View Code