centos7安装keepalived

1.下载keepalived

进入keepalived官网下载界面，选择你所需要的版本下载即可

点击Version 2.0.6下载
或者通过 wget 命令进行下载

wget http://www.keepalived.org/software/keepalived-2.0.6.tar.gz

此处我将文件放在：/home/gnss 下，下面的举例及命令需要注意

2.解压文件

通过 tar 命令进行解压（第1步）的下载文件

cd /etc/gnss/
tar -zxvf keepalived-2.0.6.tar.gz

3.安装

进入解压文件下,执行 configure 命令，生成Makefile，为下一步的编译做准备

cd /home/gnss/keepalived-2.0.6

# --prefix：指定安装路径
./configure --prefix=/home/etc/keepalived

执行一下命令安装

make && make install

注意
若出现下面错误信息说明你未安装GCC，安装GCC即可

#错误信息
configure: error: no acceptable C compiler found in $PATH
See 'config.log' for more details.

#安装GCC
yum install -y gcc gcc-c++

#若出现错误信息说你未安装OpenSSL,执行下面命令安装即可
yum install -y openssl openssl-devel

4.将keepalived注册为系统服务

进入（第2步）的解压文件内，执行一下命令

cd /home/gnss/keepalived-2.0.6

#复制文件
cp keepalived/etc/init.d/keepalived /etc/init.d
cp keepalived/etc/sysconfig/keepalived /etc/sysconfig/

进入（第3步）的安装目录

cd /home/gnss/keepalived

mkdir /etc/keepalived

#复制文件
cp etc/keepalived/keepalived.conf /etc/keepalived/

5.验证是否安装成功

运行keepalived查看日志文件

systemctl start keepalived

#查看日志文件
tail /var/log/message

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说明

• keepalived的日志输出默认是：/var/log/message 文件，我在网上找了下修改输出位置，都是修改/etc/sysconfig/keepalived 文件，配置rsyslog服务,然而并没有什么卵用，你们可以测试一下，若有找到其他方式的请评论
• centos7对keepalived操作的基本命令

#重新加载
systemctl daemon-reload  

#设置开机自动启动
systemctl enable keepalived

#取消开机自动启动
systemctl disable keepalived

#启动
systemctl start keepalived

#停止
systemctl stop keepalived

#重启
systemctl restart keepalived