ipvsadm配合脚本配置LVS

olik

实验环境：centos6.5系统
软件：ipvsadm-1.24、LVS.sh脚本
      realserver.sh脚本

LVS服务器：
    /opt/shell/LVS.sh

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#!/bin/bash # # LVS script for VS/DR # . /etc/rc.d/init.d/functions # VIP=10.124.194.10 RIP1=10.124.194.242 RIP2=10.124.194.241 PORT1=80 PORT2=443 # case "$1" in start)              /sbin/ifconfig eth0:1 $VIP broadcast $VIP netmask 255.255.255.255 up   /sbin/route add -host $VIP dev eth0:1 # Since this is the Director we must be able to forward packets   echo 1 > /proc/sys/net/ipv4/ip_forward # Clear all iptables rules.   /sbin/iptables -F # Reset iptables counters.   /sbin/iptables -Z # Clear all ipvsadm rules/services.   /sbin/ipvsadm -C # Add an IP virtual service for VIP 10.124.194.10 port 80 # In this recipe, we will use the round-robin scheduling method. # In production, however, you should use a weighted, dynamic scheduling method.   /sbin/ipvsadm -A -t $VIP:$PORT1 -s wlc   /sbin/ipvsadm -A -t $VIP:$PORT2 -s wlc # Now direct packets for this VIP to # the real server IP (RIP) inside the cluster   /sbin/ipvsadm -a -t $VIP:$PORT1 -r $RIP1 -g -w 1   /sbin/ipvsadm -a -t $VIP:$PORT2 -r $RIP1 -g -w 1   /sbin/ipvsadm -a -t $VIP:$PORT1 -r $RIP2 -g -w 2   /sbin/ipvsadm -a -t $VIP:$PORT2 -r $RIP2 -g -w 2   /bin/touch /var/lock/subsys/ipvsadm &> /dev/null ;; stop) # Stop forwarding packets   echo 0 > /proc/sys/net/ipv4/ip_forward # Reset ipvsadm   /sbin/ipvsadm -C # Bring down the VIP interface   /sbin/ifconfig eth0:1 down   /sbin/route del $VIP       /bin/rm -f /var/lock/subsys/ipvsadm       echo "ipvs is stopped..." ;; status)   if [ ! -e /var/lock/subsys/ipvsadm ]; then     echo "ipvsadm is stopped ..."   else     echo "ipvs is running ..."     ipvsadm -L -n   fi ;; *)   echo "Usage: $0 {start|stop|status}" ;; esac

Realserver服务器端：
    /etc/init.d/realserver.sh

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#!/bin/bash # description: Config realserver lo and apply noarp    SNS_VIP=10.124.194.10    #/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