虚拟IP配置

时间 2019-11-11

标签虚拟配置繁體版

原文原文链接

1.安装keepalivednginx

下载keepalived-1.2.7.tar.gzvim

tar -zxvf keepalived-1.2.7.tar.gzruby

cd keepalived-1.2.7服务器

./configure --prefix=/opt/keepalived && make && make installtcp

chkconfig --add keepalived #添加系统服务spa

2.配置keepalivedcode

vim /etc/keepalived/keepalived.confrouter

2.1配置keepalived须要检测的应用程序监测脚本ip

 
         vrrp_script chk_nginx { 
        
         script  
         "/opt/keepalived/check_nginx.sh" 
        
         interval  
         2 
        
         weight  
         2 
        
         }

2.2 主要配置ci

 
         vrrp_instance  
         VS_8 
         { 
        
         state  
         BACKUP      
         #配置是主仍是备 
        
         interface eth0      
         #网卡 
        
         virtual_router_id  
         59 
         #router_id主备要同样，另外，经过tcpdump vrrp查看哪些vrid在使用，不要有冲突 
        
         priority  
         100 
         #优先级 
        
         advert_int  
         1 
        
         authentication { 
        
         auth_type  
         PASS 
        
         auth_pass  
         1111 
        
         } 
        
         track_interface { 
        
         eth0 
        
         } 
        
         virtual_ipaddress { 
        
         10 
         . 
         13 
         . 
         81 
         . 
         8 
         / 
         24 
         dev eth0   
         #这里配置虚拟IP 
        
         } 
        
         track_script { 
        
         chk_nginx 
        
         } 
        
         # 下面是发生切换时的通知脚本 
        
         notify_master  
         "/opt/keepalived/notify.py from_120_keepalived_master_is_up" 
        
         notify_backup  
         "/opt/keepalived/notify.py from_120_keepalived_backup_is_down" 
        
         notify_fault  
         "/opt/keepalived/notify.py from_120_keepalived_fault" 
        
         }

3. 检查虚拟IPip -f inet addr 就能够在主服务器上看到刚才配置的虚拟IP了。