Keepalived+Lvs-DR+Mysql+Discuz

前提需要 Keepalived从主两台机器 我们定义为Keepalived-Master为主  Keepalived-Slave为从

需要Web 自己定义 我这里定义为两台  WEB1  WEB2 还需要一台 Lvs   

           ########《加上 Mysql+Discuz 论坛 下期继续》#########

试验环境 

使用版本 redhat6.1  下面是所需配置的IP VIP

Keepalived-Master

ip:211.100.1.10/24

VIP:211.100.1.80

Keepalived-Slave

ip:211.100.1.11/24

VIP:211.100.1.80

nfs:

ip:211.100.1.250/24

web1:

ip:211.100.1.100/24

VIP:211.100.1.80

web2:

ip:211.100.1.101/24

VIP:211.100.1.80

 <1>配置 Keepalived-Master 

ifconfig eth2 211.100.1.10/24

rm -rf /etc/yum.repos.d/*

mkdir /media/cdrom

mount /dev/cdrom /media/cdrom

cat >/etc/yum.repos.d/local.repo <<end

[base]

name=rhel6.1

baseurl=file:///media/cdrom

enabled=1

gpgcheck=0

end

yum -y install kernel-devel openssl-devel popt-devel

rpm -Uvh  /media/cdrom/Packages/ipvsadm-1.25-9.el6.i686.rpm


tar zxf keepalived-1.2.7.tar.gz

cd keepalived-1.2.7

./configure  --prefix=/ --with-kernel-dir=/usr/src/kernels/2.6.32-131.0.15.el6.i686 && make && make install

service iptables stop

setenforce 0

echo "

global_defs {

        router_id lvs-ke-w1

}

vrrp_instance VI_1 {

        state MASTER

        interface eth2

        virtual_router_id 1

        priority 100

        advert_int 1

        authentication {

                auth_type PASS

                auth_pass 1111

                        }

        virtual_ipaddress {

                        211.100.1.80  ####VIP#####

                        }

                }

virtual_server 211.100.1.80 80 {      #####VIP地址####

        delay_loop 15

        lb_algo rr

        ! persistence_timeout 50

        protocol TCP

        lb_kind DR

        real_server 211.100.1.100 80 {     #######指向WEB1地址######

                weight 1

                TCP_CHECK {

                        connect_port 80

                        connect_timeout 3

                        nb_get_retry 3

                        delay_before_retry 4

                        }

}

        real_server 211.100.1.101 80 {      ######WEB2地址########

                weight 1

                TCP_CHECK {

                        connect_port 80

                        connect_timeout 3

                        nb_get_retry 3

                        delay_before_retry 4

                        }

}

}"   > /etc/keepalived/keepalived.conf

modprobe ip_vs

echo "net.ipv4.conf.all.send_redirects = 0">> /etc/sysctl.conf

echo "net.ipv4.conf.default.send_redirects = 0">>/etc/sysctl.conf

echo "net.ipv4.conf.eth2.send_redirects = 0">>/etc/sysctl.conf

sysctl -p

ifconfig eth2:2 211.100.1.80/24 up

echo "ifconfig eth2:2 211.100.1.80/24 up" >>/etc/rc.local


ipvsadm -A -t 211.100.1.80:80 -s rr

ipvsadm -a -t 211.100.1.80:80 -r 211.100.1.100:80 -g -w 1

ipvsadm -a -t 211.100.1.80:80 -r 211.100.1.101:80 -g -w 1

service ipvsadm save

chkconfig ipvsadm on

ipvsadm -L

ipvsadm -Lnc

然后到 Keepalived-Slave

这个和主 的配置一模一样的 .....


再配置 NFS

ifconfig eth2 211.100.1.250/24

mkdir /wwwroot

echo "this is lvs+keepalived web-server Link the successmkdir !!!">> /wwwroot/index.html

echo "/wwwroot 211.100.1.0/24(rw,sync,no_root_squash)">> /etc/exports

service rpcbind restart

service rpcbind status

service nfs restart

service iptables stop

setenforce 0

配置WEB1和WEB2  配置一样

ifconfig eth2 211.100.1.100/24

rm -rf /etc/yum.repos.d/*

mkdir /media/cdrom

mount /dev/cdrom /media/cdrom

cat >/etc/yum.repos.d/local.repo <<end

[base]

name=rhel6.1

baseurl=file:///media/cdrom

enabled=1

gpgcheck=0

end

yum -y install httpd

mount -t nfs 211.100.1.250:/wwwroot /var/www/html   ###### 当这条打上去 提示 链接超时时 需要去 NFS  关闭防火墙  还需要启动 这三项service rpcbind restart   service rpcbind status   service nfs restart #########


echo "net.ipv4.conf.all.arp_ignore = 1">> /etc/sysctl.conf

echo "net.ipv4.conf.all.arp_announce = 2">> /etc/sysctl.conf

echo "net.ipv4.conf.default.arp_ignore = 1">> /etc/sysctl.conf

echo "net.ipv4.conf.default.arp_announce = 2">> /etc/sysctl.conf

echo "net.ipv4.conf.lo.arp_ignore = 1">> /etc/sysctl.conf

echo "net.ipv4.conf.lo.arp_announce = 2">> /etc/sysctl.conf

sysctl -p

ifconfig lo:0 211.100.1.80/32 up

echo "ifconfig lo:0 211.100.1.80/32 up">> /etc/rc.local

route add -host 211.100.1.80 dev lo:0

echo "route add -host 211.100.1.80 dev lo:0">> /etc/rc.local

service iptables stop

setenforce 0

chkconfig httpd on

service httpd restart

当WEB1和2 也配置完成 然后我们打开 游览器  地址栏输入 VIP 地址 就行了 

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