keepalived高可用基本配置

以你之姓@ 2023-06-15 07:23 21阅读 0赞

Keepalived官网： http://www.keepalived.org

yum –y install gcc gcc-c++ openssl-devel libnfnetlink libnfnetlink-devel libnl3 libnl3-devel
    
    tar –xf keepalived.*.*
    cd keepalived
    ./configure –prefix=/usr/local/keepalived
    make && make install

**主服务器**  
在源码安装目录下找到如下文件并且复制到init.d目录下：

cp keepalived/etc/init.d/keepalived  /etc/init.d/

//从安装目录下复制keepalived配置文件到/etc/sysconfig/目录下

cp -p /usr/local/keepalived/etc/sysconfig/keepalived  /etc/sysconfig/

//从安装目录下复制keepalived主配置文件到/etc/keepalived/目录下

mkdir /etc/keepalived
    cp –p /usr/local/keepalived/etc/keepalived/keepalived.conf  /etc/keepalived/

//修改主配置文件  
vim /etc/keepalived/keepalived.conf  
![在这里插入图片描述][20191121135547283.png]  
![在这里插入图片描述][20191121135713117.png]

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**从服务器配置**

![在这里插入图片描述][20191121140305292.png]  
//防火墙配置允许心跳检测

iptables –I INPUT –p vrrp –j ACCEPT
    /etc/init.d/iptables save

//设置指定文件记录keepalived日志

vim /etc/sysconfig/keepalived

KEEPALIVED_OPTIONS="-D -d -S 0"

vim /etc/rsyslog.conf 
    在messages行加入“ ;local0.none”

*.info;mail.none;authpriv.none;cron.none;local0.none                /var/log/messages

在最后加入 local0.\* /var/log/keepalived.log，然后保存退出

local0.*		/var/log/keepalived.log

重启rsyslog服务，重启keepalived服务

/etc/init.d/rsyslog restart
    /etc/init.d/keepalived restart

从服务器重复上面的步骤  
主从服务器通过以下命令测试配置是否成功

ip addr | grep vip

[keepalived手册下载（百度网盘）][keepalived] 提取码：z04y

[20191121135547283.png]: https://img-blog.csdnimg.cn/20191121135547283.png
[20191121135713117.png]: https://img-blog.csdnimg.cn/20191121135713117.png
[20191121140305292.png]: https://img-blog.csdnimg.cn/20191121140305292.png
[keepalived]: https://pan.baidu.com/s/1GuM8hwR4Ktd-h38bsFUPFA