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1.KeepAlived安裝
1.下載keepalived
wget http://www.keepalived.org/software/keepalived-1.2.18.tar.gz
2.解壓安裝：
tar -zxvf keepalived-1.2.18.tar.gz -C /usr/local/
3.下載插件openssl
yum install -y openssl openssl-devel（需要安裝一個軟件包）
4.開始編譯keepalived
cd keepalived-1.2.18/ && ./configure --prefix=/usr/local/keepalived
5.make一下
make && make install
常見錯誤1
執(zhí)行yum install 報錯如下：
File contains no section headers.
解決方案：
步驟1
刪除yum.repos.d目錄下所有文件
rm -f /etc/yum.repos.d/*
步驟2
然后重新下載阿里的鏡像
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
步驟3
清理緩存
yum clean all
步驟4
測試下載安裝
yum install gcc
常見錯誤2
報錯: eepalived執(zhí)行./configure --prefix=/usr/local/keepalived時報錯：configure: error: Popt libraries is required
出現(xiàn)此錯誤的原因：
未安裝popt的開發(fā)包
解決方法：
yum install popt-devel
安裝好popt的開發(fā)包颤霎。重新./configure 即可盾鳞。
2.KeepAlived設(shè)置為服務(wù)倔幼，開啟啟動
將keepalived安裝成Linux系統(tǒng)服務(wù)，因?yàn)闆]有使用keepalived的默認(rèn)安裝路徑（默認(rèn)路徑：/usr/local）,安裝完成之后站超，需要做一些修改工作：
首先創(chuàng)建文件夾，將keepalived配置文件進(jìn)行復(fù)制：
mkdir /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
然后復(fù)制keepalived腳本文件：
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
ln -s /usr/local/sbin/keepalived /usr/sbin/
ln -s /usr/local/keepalived/sbin/keepalived /sbin/
可以設(shè)置開機(jī)啟動：chkconfig keepalived on，到此我們安裝完畢!
3.KeepAlived常用命令
service keepalived start
service keepalived stop
systemctl stop firewalld
啟動報錯Starting keepalived (via systemctl): Job for keepalived.service failed. See 'systemctl status keepalived.service' and 'journalctl -xn' for details.
解決辦法
[root@edu-proxy-01 sbin]# cd /usr/sbin/
[root@edu-proxy-01 sbin]# rm -f keepalived
[root@edu-proxy-01 sbin]# cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
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