负载均衡机 load blancer
!/bin/bash
GW=10.2.19.255
website director vip.
SNS_VIP=10.2.19.83
SNS_RIP1=10.2.19.85
SNS_RIP2=10.2.19.86
logger $0 called with $1
case “$1” in
start)
# set squid vip
/sbin/ipvsadm –set 30 5 60
/sbin/ifconfig eth1:0 $SNS_VIP broadcast $SNS_VIP netmask 255.255.255.255 up
/sbin/route add -host $SNS_VIP dev eth1:0
/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 eth1:0 down
ifconfig eth1:1 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
真实机
!/bin/bash
. /etc/init.d/functions
SNS_VIP=10.2.19.83
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
cp lvs_dr.sh /etc/rc.d/init.d/
service lvs_dr.sh start #启动lvs RS服务器
http://wolfchen.blog.51cto.com/2211749/1122841
修改keepalive日志位置
我们只需要修改 /etc/sysconfig/keepalived 就可以了
把KEEPALIVED_OPTIONS=”-D” 修改为KEEPALIVED_OPTIONS=”-D -d -S 0″
最后设置syslog，修改/etc/rsyslog.conf
最后添加：
keepalived -S 0
local0.* /var/log/keepalived.log
重新启动日志
/etc/init.d/rsyslog restart
使用以下命令进行验证
/etc/init.d/keepalived restart;tailf /var/log/keepalived.log
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