CentOS操做系統keepalived安裝步驟

一、把keepalived-1.2.2.tar.gz、openssl-1.0.1c.tar.gz、popt-1.16.tar.gz上傳至home目錄；
二、安裝OpenSSL
    # cd /home
    # tar -zxf openssl-1.0.1c.tar.gz
    # cd openssl-1.0.1c/
    # ./config  --prefix=/usr/local --openssldir=/usr/local/ssl
    # make && make install
    # ./config shared --prefix=/usr/local --openssldir=/usr/local/ssl
    # make clean
    # make && make install
二、安裝popt
    # cd /home
    # tar zxvf popt-1.16.tar.gz
    # cd popt-1.16
    # ./configure
    # make
    # make install
三、安裝keepalived
    # cd /home
    # tar -xzvf keepalived-1.2.2.tar.gz
    # cd keepalived-1.2.2
    # ./configure --prefix=/usr/local/keepalived
    # make
    # make install clean
四、刪除安裝文件
    # cd /home
    # rm -Rf openssl-1.0.1c
    # rm -Rf popt-1.16
    # rm -Rf keepalived-1.2.2
五、修改keepalived配置文件
    把文件keepalived.conf上傳至/usr/local/keepalived/etc/keepalived覆蓋原有文件
    主機修改virtual_ipaddress爲虛擬IP地址
    從機把priority由100修改成99，而且修改virtual_ipaddress爲虛擬IP地址
六、若是使用了iptables，則須要在iptables中加入一條配置
    -A INPUT -p vrrp -j ACCEPT
    iptables默認配置文件的位置在哪裏
    /etc/sysconfig/iptables
    修改完後，重啓iptables:service iptables restart
六、啓動keepalived和開機啓動
    # cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
        # cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ 
    # mkdir /etc/keepalived 
    # cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
    # cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
    # chkconfig --level 2345 keepalived on
    # service keepalived start