一、負載均衡器端

1.安裝（MASTER、BACKUP)

A、wget http://mirrors.163.com/.help/CentOS6-Base-163.repo -O /etc/yum.repos.d/CentOS-Base.repo

B、yum makecache

C、yum -y update

D、yum -y install ipvsadm modcluster piranha system-config-cluster php54 php54-cli php54-common

2.撰寫配置文件

vi /etc/sysconfig/ha/lvs.cf

serial_no = 28

primary = 10.10.10.100

primary_private = 172.28.29.100

service = lvs

backup_active = 1

backup = 10.10.10.200

backup_private = 172.28.29.200

heartbeat = 1

heartbeat_port = 539

keepalive = 6

deadtime = 18

network = direct

debug_level = NONE

monitor_links = 0

syncdaemon = 0

virtual web_http {

? ? active = 1

? ? address = 10.10.10.250 eth0:1

? ? vip_nmask = 255.255.255.0

? ? port = 80

? ? send = "GET / HTTP/1.0\r\n\r\n"

? ? expect = "HTTP"

? ? use_regex = 0

? ? load_monitor = none

? ? scheduler = wrr

? ? protocol = tcp

? ? timeout = 6

? ? reentry = 15

? ? quiesce_server = 0

? ? server web_realserver1 {

? ? ? ? address = 10.10.10.101

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

? ? server ?web_realserver2 {

? ? ? ? address = 10.10.10.102

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

? ? server ?web_realserver3 {

? ? ? ? address = 10.10.10.103

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

? ? server ?web_realserver4 {

? ? ? ? address = 10.10.10.104

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

}

virtual bbs_http {

? ? active = 1

? ? address = 172.28.29.250 eth1:1

? ? vip_nmask = 255.255.255.0

? ? port = 80

? ? send = "GET / HTTP/1.0\r\n\r\n"

? ? expect = "HTTP"

? ? use_regex = 0

? ? load_monitor = none

? ? scheduler = wrr

? ? protocol = tcp

? ? timeout = 6

? ? reentry = 15

? ? quiesce_server = 0

? ? server ?bbs_realserver1 {

? ? ? ? address = 172.28.29.101

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

? ? server ?bbs_realserver2 {

? ? ? ? address = 172.28.29.102

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

? ? server ?bbs_realserver3 {

? ? ? ? address = 172.28.29.103

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

? ? server ?bbs_realserver4 {

? ? ? ? address = 172.28.29.104

? ? ? ? active = 1

? ? ? ? port = 80

? ? ? ? weight = 1

? ? }

}

3.啟動LVS集群（先master后backup）

/etc/init.d/pulse start

二、后端的realserver端

1.撰寫腳本

vi /etc/init.d/lvs_realserver

#!/bin/bash

#description: LVS realsever

. /etc/rc.d/init.d/functions

WEB_VIP="10.10.10.250 172.28.29.250"

start(){

num=0

echo -ne 'Start LVS of RealServer'

for loop in $WEB_VIP

do

? ?ifconfig lo:$num $loop netmask 255.255.255.255 up

# ? ?/sbin/route add -host $loop dev lo:$num

? ?num=$[num+1]

done

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

echo " OK"

}

stop(){

echo -ne 'Stop LVS of RealServer'

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

num=0

for loop in $WEB_VIP

do

? ?/sbin/ifconfig lo:$num down

# ? ?/sbin/route del -host $loop

? ?num=$[num+1]

done

echo " OK"

}

restart(){

stop

start

}

case $1 in

start)

? ? start

? ? ?;;

stop)

? ? stop

? ? ?;;

restart)

? ? restart

? ? ?;;

status)

? ? /sbin/ip add

? ? ?;;

*)

? echo "Usage: $0 {start|stop|restart|status}"

? exit 1

esac

2.添加執(zhí)行權(quán)限chmod +x /etc/init.d/lvs_realserver3.啟動腳本sh /etc/init.d/lvs_realserver start三、防火墻配置vi /etc/sysconfig/iptables*filter:INPUT ACCEPT [0:0]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [238237693:45658345413]:RH-Firewall-1-INPUT - [0:0]-A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A INPUT -s 10.10.10.0/24 -d 224.0.0.0/8 -i eth0 -j ACCEPT-A INPUT -s 172.28.29.0/24 -d 224.0.0.0/8 -i eth1 -j ACCEPT-A RH-Firewall-1-INPUT -p icmp -m icmp --icmp-type any -j ACCEPT -A RH-Firewall-1-INPUT -p esp -j ACCEPT -A RH-Firewall-1-INPUT -p ah -j ACCEPT -A RH-Firewall-1-INPUT -d 224.0.0.251 -p udp -m udp --dport 5353 -j ACCEPT -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT ?-A RH-Firewall-1-INPUT -s 172.28.29.0/255.255.255.0 -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT-A RH-Firewall-1-INPUT -s 10.10.10.0/255.255.255.0 -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT四、看一下運行情況[root@rabbit1 ~]# ipvsadmIP Virtual Server version 1.2.1 (size=4096)Prot LocalAddress:Port Scheduler Flags-> RemoteAddress:Port ? ? ? ? ? Forward Weight ActiveConn InActConn ? ? TCP ?10.10.10.250:http wrr-> 10.10.10.101:http ? ? ? ? ? ?Local ? 1 ? ? ?115 ? ? ? ?448 ? ? ? -> 10.10.10.102:http ? ? ? ? ? ?Route ? 1 ? ? ?137 ? ? ? ?452 ? ? ? -> 10.10.10.103:http ? ? ? ? ? ?Route ? 1 ? ? ?111 ? ? ? ?454 ? ? ? -> 10.10.10.104:http ? ? ? ? ? ?Route ? 1 ? ? ?141 ? ? ? ?440 ? ? ? TCP ?172.28.29.250:http wrr-> 172.28.29.101:http ? ? ? ? ? Local ? 1 ? ? ?84 ? ? ? ? 145 ? ? ? -> 172.28.29.102:http ? ? ? ? ? Route ? 1 ? ? ?77 ? ? ? ? 147 ? ? ? -> 172.28.29.103:http ? ? ? ? ? Route ? 1 ? ? ?83 ? ? ? ? 152 ? ? ? -> 172.28.29.104:http ? ? ? ? ? Route ? 1 ? ? ?71 ? ? ? ? 160 ? ? ?

轉(zhuǎn)載http://navyaijm.blog.51cto.com/4647068/893756

轉(zhuǎn)載于:https://blog.51cto.com/liang3391/1246192

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