Keepalived源码安装
Keepalived源码安装Keepalived的功能很强大，主要检测服务器的状态，如果有一台web服务器宕机，或工作出现故障，Keepalived将检测到，并将有故障的服务器从系统中剔除，同时使用其他服务器代替该服务器的工作，当服务器工作正常后Keepalived自动将服务器加入到服务器群中，这些工作全部自动完成，不需要人工干涉，需要人工做的只是修复故障的服务器。在这里我就不详细介绍了
接下来我们直接下载包直接安装
1、keepalived安装。
先安装keepalived依赖组件
#yum -y install libnl libnl-devel libnfnetlink-devel popt-develgcc make进入一个目录，我这里为了方便直接到src目录下
# cd /usr/local/src/#下载keepalived压缩包
# wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
#解压并把解压完的文件指向存放位置
#tar zxvf keepalived-1.2.7.tar.gz-C/usr/local
#cd ../keepalived-1.2.7#编译
#./configure#编译成功结果如下：
Keepalived configuration
------------------------
Keepalived version : 1.2.7
Compiler : gcc
Compiler flags : -g -O2
Extra Lib : -lpopt -lssl -lcrypto-lnl
Use IPVS Framework : Yes
IPVS sync daemon support : Yes
IPVS use libnl : Yes
Use VRRP Framework : Yes
Use VRRP VMAC : Yes
SNMP support : No
Use Debug flags : No# make && make install#把 keepalived的启动文件复制到init.d下，加入开机启动项
#cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/#将keepalived文件拷贝到etc下
#cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/#创建keepalived文件夹
#mkdir /etc/keepalived#将keepalived配置文件拷贝到etc/keepalived下
#cp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/#把keepalived加入系统命令目录
#cp /usr/local/sbin/keepalived /usr/sbin/#到这里源码安装Keepalived就已经完成了。接下来就可以愉快的用了
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