LVS-DR安装配置(ipvsadm+keepalived)
看到标题,你就知道我做什么,所以这里直接贴安装和配置步骤。
VIP: 192.168.1.98
LVS主:192.168.1.216 (redhat5-2.6.18-194.el5-x86_64)
LVS备:192.168.1.217 (redhat5-2.6.18-194.el5-x86_64)
real_server1:192.168.1.220 (suse11)
real_server2:192.168.1.226 (redhat5)
一、LVS主、备上都安装ipvsadm + keepalived
安装ipvsadm-1.24
1, wget http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.24.tar.gz
2,创建一个连接文件:ln -sv /usr/src/kernels/2.6.18-194.el5-x86_64/ /usr/src/linux
3,解压:tar zxvf ipvsadm-1.24.tar.gz
4,安装:cd ipvsadm-1.24; make;make install
5,执行ipvsadm,检验ipvsadm 是否被正确安装
安装keepalived-1.1.20 (当前最新是1.2.2,发现安装不上,就选了1.1.*的最新一个版本)
1,wget http://www.keepalived.org/software/keepalived-1.1.20.tar.gz
2,解压:tar zxvf keepalived-1.1.20.tar.gz
3,安装:cd keepalived-1.1.20; ./configure –prefix=/usr/local/keepalive; make;make install
安装完成生成目录:/usr/local/keepalived
4,配置keepalived.conf :
vi /usr/local/keepalive/etc/keepalived/keepalived.conf
LVS主:
! Configuration File for keepalivedglobal_defs { router_id LVS_DEVEL_1}vrrp_sync_group VGM { group { VI_CACHE }}vrrp_instance VI_CACHE { state MASTER interface eth0 lvs_sync_daemon_inteface eth0 virtual_router_id 216 priority 150 advert_int 5 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.98 }}virtual_server 192.168.1.98 80 { delay_loop 6 lb_algo wlc lb_kind DR# persistence_timeout 50 (这里可以让访问的IP在一段时间转发到相同的real_server) protocol TCP real_server 192.168.1.226 80 { weight 100 TCP_CHECK { connect_timeout 5 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } real_server 192.168.1.220 80 { weight 100 TCP_CHECK { connect_timeout 5 nb_get_retry 3 delay_before_retry 3 connect_port 80 } }}
global_defs { router_id LVS_DEVEL_2 #随便取,不重复就行}
vrrp_instance VI_CACHE { state BACKUP # interface eth0 lvs_sync_daemon_inteface eth0 virtual_router_id 217 #随便取,不重复就行 priority 100 #备比主的值小就行 advert_int 5 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.98 }}
/usr/local/keepalive/sbin/keepalived --use-file /usr/local/keepalive/etc/keepalived/keepalived.conf
#!/bin/bash#description : start realserverVIP=192.168.1.98/etc/rc.d/init.d/functionscase "$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 Directorserver"echo "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|stop}"exit 1esac
正在 Ping 192.168.1.98 具有 32 字节的数据:来自 192.168.1.98 的回复: 字节=32 时间=6ms TTL=64来自 192.168.1.98 的回复: 字节=32 时间=1ms TTL=64来自 192.168.1.98 的回复: 字节=32 时间=1ms TTL=64来自 192.168.1.98 的回复: 字节=32 时间=1ms TTL=64