LVS+keepalived部署方法选编.docx

一：环境说明：?? LVS-DR-Master：?? ?10.1.1.245?? LVS-DR-Backup：?? ?10.1.2.244?? VIP:?? ??? ??? ??? ?10.1.1.240?? RealServer1：?? ?10.1.1.242?? RealServer1：?? ?10.1.1.1.243?? Centos：5.7 ??安装(此步骤需同时在244,245机器执行)[root@localhost opt]# yum -y install popt popt-devel libnl libnl-develpopt-staticlibnfnetlink libnfnetlink-developenssl openssl-devel[root@localhost opt]# cd /data/software[root@localhost software]# tar zxvf ipvsadm-1.26.tar.gz[root@localhost software]# cd ipvsadm-1.26[root@localhost ipvsadm-1.25]# make makeinstall上面步骤不成功则在线安装[root@localhost opt]# yum -y install ipvsadm[root@localhost software]# tar -zxvf keepalived-1.2.21.tar.gz[root@localhost software]# cd keepalived-1.2.21[root@localhost keepalived-1.2.21]# ./configure --sysconf=/etc --prefix=/usr/local/keepalived[root@localhost keepalived-1.2.21]# make make install开启路由转发(此步骤需同时在244,245机器执行)[root@localhost keepalived-1.2.21]# cat /proc/sys/net/ipv4/ip_forward1[root@localhost keepalived-1.2.21]# echo 1 /proc/sys/net/ipv4/ip_forward[root@CentOS-LVS_MASTER?~]# vim /etc/sysctl.conf?net.ipv4.ip_forward = 1设置虚拟IP(此步骤需同时在244,245机器执行)首先查看一下现有网卡的IP地址，用root特权运行下面的命令[root@localhost ~]# ip addr从上面的详细信息中，可以看到服务器的网卡名是enip地址是10.1.1.245。网卡的配置文件存储在 /etc/sysconfig/network-scripts/ 目录下。每个网卡的详细内容将会以不同的名字存储，比如ifcfg-en打开此配置文件，并且再添加一个IP地址编辑文件vi /etc/sysconfig/network-scripts/ifcfg-en下面那样加入额外的IP地址。IPADDR2=10.1.1.240NETMASK2=255.255.255.0重启网络服务来使更改生效。[root@localhost ~]#systemctl restart network配置配置keepalived[root@localhost ~]# vim /etc/keepalived/keepalived.conf #LVS的端口须与realserver端口一致分别配置master和slave配置master! Configuration File for keepalivedglobal_defs { notification_email { } router_id LVS_DEVEL}vrrp_instance VI_1 { #定义一个vrrp组，组名唯一 state MASTER #定义改主机为keepalived的master主机 interface en #监控eth0号端口 virtual_router_id 58 #虚拟路由id号为58，id号唯一，这个id决定了多播的MAC地址 priority 150 #设置本节点的优先级，master的优先级要比backup的优先级别高，数值要大 advert_int 1 #检查间隔，默认为1秒authentication