简介
Keepalived的作用是检测服务器的状态,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。
本文将以两台服务器来详细讲述keepalived主从服务的安装过程。
keepalived安装
[root@bogon local]# tar -zxvf keepalived-1.2.7.tar.gz
[root@bogon local]# cd keepalived-1.2.7
[root@bogon keepalived-1.2.7]# yum -y install ipvsadm
... ...
Complete!
[root@bogon keepalived-1.2.7]# ./configure
Keepalived configuration
------------------------
Keepalived version : 1.2.7
Compiler : gcc
Compiler flags : -g -O2
Extra Lib : -lpopt -lssl -lcrypto
Use IPVS Framework : Yes
IPVS sync daemon support : Yes
IPVS use libnl : No
Use VRRP Framework : Yes
Use VRRP VMAC : Yes
SNMP support : No
Use Debug flags : No
[root@bogon keepalived-1.2.7]# make
Make complete
[root@bogon keepalived-1.2.7]# make install
[root@bogon keepalived-1.2.7]#