lvs+keepalived+DR安装.doc

一，Lvs 客户端(ubuntu脚本)1，roothuludao-2 # vi /usr/local/bin/lvs_real#!/bin/bash#description : start realserverVIP=192.168.6.134case $1 instart)echo start LVS of REALServer/sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 upecho 1 /proc/sys/net/ipv4/conf/lo/arp_ignoreecho 2 /proc/sys/net/ipv4/conf/lo/arp_announceecho 1 /proc/sys/net/ipv4/conf/all/arp_ignoreecho 2 /proc/sys/net/ipv4/conf/all/arp_announce;stop)/sbin/ifconfig lo:0 downecho close LVS Directorserverecho 0 /proc/sys/net/ipv4/conf/lo/arp_ignoreecho 0 /proc/sys/net/ipv4/conf/lo/arp_announceecho 0 /proc/sys/net/ipv4/conf/all/arp_ignoreecho 0 /proc/sys/net/ipv4/conf/all/arp_announce;*)echo Usage: $0 start|stopexit 1esac配置脚本写好保存，给予脚本执行权限。脚本启停以/usr/local/bin/lvs_real start | stop 来启动。通过来ip add检查网络状态。从输出可以看出， lo：0 确实绑定了我们指定的vip 地址。那么当我们执行/usr/local/bin/lvs_real 时，vip 应当从lo:0 接口卸载。2,打开二，Lvs LD（centos 5.3）1,Ipvsadmin 默认已安装（安装系统时候，勾上cluster）2，keepalived 的安装#tar -zxvf keepalived-1.1.19.tar.gz#cd keepalived-1.1.19./configure -prefix=/usr/local/keepalived -with-kernel-dir=/usr/src/kernels/2.6.18-128.el5PAE-i686/( 注意编译时一定要支持 IPVS )#make;make install#cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/#cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/# mkdir /etc/keepalived#cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/#cp /usr/local/keepalived/sbin/keepalived /usr/sbin/#service keepalived start|stop|status#chkconfig -add keepalived #chkconfig -level 345 keepalived on3,在/etc/sysconfig/network-scripts 下新建一个vi lo:0 DEVICE=lo:0IPADDR=192.168.6.134NETMASK=255.255.255.255NETWORK=192.168.6.0# If youre having problems with gated making 127.0.0.0/8 a martian,# you can change this to something else (255.255.255.255, for example)BROADCAST=192.168.6.134ONBOOT=yesNAME=loopback 启动lo:0 ifup lo:0（重启机器后一定要记得执行）4,keepalived.conf的编辑 vi /etc/keepalived/keepalived.conf! Configuration File for keepalivedglobal_defs notification_email sysadminfirewall.loc notification_email_from Alexandre.Cassenfirewall.loc smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS_DEVELvrrp_instance VI_1 state MASTER interface eth0 virtual_router_id 51 priority 100 advert_int 1 authentication auth_type PASS auth_pass 1111 virtual_ipaddress 192.168.6.134 virtual_server 192.168.6.134 5222 delay_loop 6 lb_algo rr lb_kind DR persistence_timeout 50 protocol TCP real_server 192.168.6.142 5222 weight 1 TCP_CHECK connect_timeout 10 connect_port 5222 real_server 192.168.6.143 5222 weight 1 TCP_CHECK connect_timeout 1