LVS 2 環境搭建

安裝所需軟體

yum install -y vim wget yum install -y ipvsadm cd /usr/src yum -y install openssl-devel wget wget yum -y install popt-static-1.13-7.el6.x86_64.rpm yum -y install kernel-devel make gcc openssl-devel libnl* popt* ln -s /usr/src/kernels/2.6.32-754.27.1.el6.x86_64/ /usr/src/linux tar zxvf keepalived-1.2.7.tar.gz cd keepalived-1.2.7 ./configure --with-kernel-dir=/usr/src/kernels/2.6.32-754.27.1.el6.x86_64/

make && make install

軟體配置

cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/ cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/ mkdir /etc/keepalived cp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/

cp /usr/local/sbin/keepalived /usr/sbin/

keepalived配置

vim /etc/sysctl.conf 開啟後修改裡面「net.ipv4.ip_forward = 1」儲存之後，執行如下命令立即生效

sysctl -p

keepalived的啟動配置

vim /etc/keepalived/keepalived.conf

具體檔案配置詳情檢視文件：

3.keepalived.conf檔案配置詳解.md

下面是我的檔案配置內容

! configuration file for keepalived global_defs notification_email_from [email protected] smtp_server 192.168.200.1 smtp_connect_timeout 30 router_id lvs_devel }vrrp_instance vi_1 virtual_ipaddress }virtual_server 192.168.8.63 8080 }}192.168.1.63作為業務伺服器ip

192.168.8.63作為負載的虛擬伺服器ip

啟動keepalived

chkconfig keepalived on

service keepalived start

檢視程序

ps aux | grep keepalived

如下圖顯示

root 3694 0.0 0.0 42172 1000 ? ss 10:55 0:00 keepalived -d root 3695 0.0 0.1 44400 2296 ? s 10:55 0:00 keepalived -d root 3697 0.0 0.0 44276 1664 ? s 10:55 0:00 keepalived -d

root 3728 0.0 0.0 103260 876 pts/1 s+ 11:09 0:00 grep keepalived

keepalived正常執行時，共啟動3個程序，其中乙個程序是父程序，負責監控其子程序；乙個是vrrp子程序；另外乙個是checkers子程序。

如果此時只看到2個程序，請從安裝keepalived的步驟重新執行。

檢視虛擬ip是否已經加上

ip a

結果如下所示，1.63和1.68均已加入

1: lo: mtu 16436 qdisc noqueue state unknown link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: mtu 1500 qdisc mq state up qlen 1000 link/ether 00:50:56:9a:6d:ee brd ff:ff:ff:ff:ff:ff inet 192.168.1.63/24 brd 192.168.1.255 scope global eth0 inet 192.168.8.63/32 scope global eth0 inet6 fe80::250:56ff:fe9a:6dee/64 scope link valid_lft forever preferred_lft forever 3: eth1: mtu 1500 qdisc noop state down qlen 1000

link/ether 00:50:56:9a:64:89 brd ff:ff:ff:ff:ff:ff

說明虛擬ip已經自動配置上了。

檢視請求**情況：

ipvsadm -lcn | grep 虛擬ip

然後主從節點重啟keepalived服務

最後進行驗證

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