下载安装并运行keepalived
·
master服务器（主服务器）ip地址：192.168.3.56
slave服务器（主从服务器）ip地址：192.168.3.59
虚拟ip（VIP，一个尚未占用的内网ip即可）地址：192.168.3.65
1.下载keepalived，下载位置为/usr/local/
2.解压：
# tar zxvf keepalived-2.2.4.tar.gz
安装依赖插件：
# yum install -y gcc openssl-devel popt-devel
3.编译安装：
# cd keepalived-2.2.4
# ./configure --prefix=/usr/local/keepalived
（指定安装目录)
# make && make install
4.运行前配置
# cp /usr/local/
keepalived-2.2.4
/keepalived/etc/
init.d
/keepalived /etc/
init.d
# mkdir /etc/keepalived
# cp /usr/local/
keepalived
/etc/keepalived/keepalived.conf /etc/keepalived/
# cp /usr/local/
keepalived-2.2.4
/keepalived/etc/
sysconfig
/keepalived /etc
/sysconfig/
# cp /usr/local/
keepalived
/sbin/keepalived /usr/sbin/
5.修改配置文件/etc/keepalived/keepalived.conf
# vi /etc/keepalived/keepalived.conf
主配置文件master
主从服务器slave
! Configuration File for keepalived
global_defs {
router_id xxoo_slave
}
vrrp_instance VI_1 {
state BACKUP
interface enp0s3
virtual_router_id 101
priority 90
advert_int 1
unicast_scr_ip 192.168.3.59
unicast_peer {
192.168.3.56
}
nopreempt
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.3.65
}
}
6.防止出现脑裂现象（主备同时获取了VIP地址）
指定keepalived配置的网卡：enp0s3，固定的VRRP广播地址：224.0.0.18
# firewall-cmd --direct --permanent --add-rule ipv4 filter INPUT 0 --in-interface enp0s3 --destination 224.0.0.18 --protocol vrrp -j ACCEPT
（会出现succes）
# firewall-cmd --direct --permanent --add-rule ipv4 filter OUTPUT 0 --out-interface enp0s3 --destination 224.0.0.18 --protocol vrrp -j ACCEPT
（会出现succe
s）
# firewall-cmd --reload
（会出现succes）
如果没有出现succes，则是因为没有开启防火墙（# systemctl start firewalld）
查看配置的规则
# firewall-cmd --direct --get-rules ipv4 filter INPUT
# firewall-cmd --direct --get-rules ipv4 filter OUTPUT
7.启动服务
# systemctl start keepalived
8.配置开机自动启动
# systemctl enable keepalived
测试
配置成功后的效果。enp0s3是网卡名字；192.168.3.65是虚拟ip，已经成功绑定到网卡上。
更多推荐
2
0- 0
已为社区贡献1条内容
所有评论(0)