需要先安裝openssl-devel

安裝openssl-devel出現沖突問題：

initscripts conflicts with redhat-release-server-7.2-9.el7.x86_64

解決：卸載沖突包

參考：

http://www.mamicode.com/info-detail-2369782.html

http://blog.51cto.com/2484643/2140696

http://www.cnblogs.com/LHXW/p/9593520.html

./configure配置KeepAlived出現configure: error: libnfnetlink headers missing問題：

yum install -y libnfnetlink-devel

安裝相關依賴

參考：

https://blog.yoodb.com/yoodb/article/detail/1378

https://www.cnblogs.com/succeed/p/6697185.html

安裝KeepAlived:

https://www.cnblogs.com/linuxlinuxlinux/p/7699771.html

KeepAlived安裝