linux系統 keepalived配置

一  ：需要的環境

二  : 安裝

三 ：配置

四 ：總結

一：需要的環境

    下載 openssl-devel，更新 update glib* （有些版本需要）

    yum -y install openssl-devel

    yum update glib*

二 ：下載 keepalived

     操作步驟：

             創建需要的文件夾

             mkdir  /app
             mkdir  /app/keepalived
             mkdir /etc/keepalived

              下載和安裝 

             cd /app
             wget http://www.keepalived.org/software/keepalived-1.2.24.tar.gz
             tar -zxvf keepalived-1.2.24.tar.gz
             cd keepalived-1.2.24
             ./configure --prefix=/app/keepalived
             make && make install

               拷貝目錄

             cp /app/keepalived/etc/keepalived.conf /etc/keepalived/keepalived.conf
             cp /app/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/keepalived
             cp /app/keepalived/etc/sysconfig/keepalived /etc/sysconfig/keepalived   

             cp  /app/keepalived/sbin/keepalived   /usr/sbin/

                設置權限

            chmod -R 775  /etc/init.d/keepalived

   

三 ：配置主備文件

        配置文件在 /etc/keepalived/keepalived.conf

        

        主配置：

! Configuration File for keepalived
global_defs {
   router_id node-00 
}

vrrp_instance VI_1 {
    state MASTER #主
    interface eth1
    virtual_router_id 38
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass x1er44q
    }
    virtual_ipaddress {
        192.168.88.199 #虛擬IP
    }

}

  備配置：

! Configuration File for keepalived
global_defs {
   router_id node-01
}

vrrp_instance VI_1 {
    state BACKUP
    interface eth0
    virtual_router_id 38
    priority 96
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass x1er44q
    }
    virtual_ipaddress {
        192.168.88.199
    }

}

總結：

    keepalived 日誌查看：

                tail  -200f  /var/log/messages

    啓動命令

                 service keepalived start   #啓動服務
                 service keepalived stop    #停止服務
                 service keepalived restart #重啓服務

   如果主備全部虛擬了IP

         # 配置iptables，允許vrrp流量，或者允許組播流量
        vim /etc/sysconfig/iptables 
       添加： -A INPUT -p vrrp -j ACCEPT # 或者：-A INPUT -m pkttype --pkt-type multicast -j ACCEP