1、實驗原理：
在企業中，如果只有一台排程器，那麼如果它出現問題，將造成不可估量的損失，所以企業會使用兩台排程器，主排程器正常工作，如果出現問題那麼輔排程器接替它繼續工作，不會影響業務。
2、實驗環境
主和備兩台排程器要有所有主機的解析，包括自己
server1:主排程器 ip:172.25.1.101
server4:輔排程器 ip:172.25.1.103
server2:伺服器 ip:172.25.1.102
server3:伺服器 ip:172.25.1.103
測試機：172.25.1.1
server1
tar -zxf keepalived-2.0.17.tar.gz
yum install gcc openssl-devel 安裝原始碼編譯所需要的環境
cd keepalived-2.0.17
./configure --prefix=/usr/local/keepalived --with-init=systemdls
make && make install
ln -s /usr/local/keepalived/etc/keepalived/ /etc/
/etc/init.d/ldirectord stop
chkconfig ldirectord off
cat /usr/lib/systemd/system/keeplived.service
vim /etc/keepalived/keepalived.conf
global_defs
notification_email_from keepalived@localhost
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id lvs_devel
vrrp_skip_check_adv_addr
#vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
} vrrp_instance vi_1
virtual_ipaddress
} virtual_server 172.25.1.101 80
}real_server 172.25.1.103 80
}} systemctl start keepalived.service
server4
tar -zxf keepalived-2.0.17.tar.gz
yum install gcc openssl-devel
cd keepalived-2.0.17
./configure --prefix=/usr/local/keepalived --with-init=systemdls
make && make install
ln -s /usr/local/keepalived/etc/keepalived/ /etc/
/etc/init.d/ldirectord stop
chkconfig ldirectord off
vim /etc/keepalived/keepalived.conf
vim /etc/keepalived/keepalived.conf
global_defs
notification_email_from keepalived@localhost
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id lvs_devel
vrrp_skip_check_adv_addr
#vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
} vrrp_instance vi_1
virtual_ipaddress
} virtual_server 172.25.1.104 80
}real_server 172.25.1.103 80
}} systemctl start keepalived.service
systemctl start httpd關掉主排程器
curl 172.25.1.101
配置 Keepalived 主備
1.通過命令vim keepalived.conf開啟配置檔案 global defs vrrp instance vi 1 虛擬出來的ip，可以有多個 vip virtual ipaddress 附 檢視網絡卡名稱 2.啟動 keepalived 在sbin目錄中進行啟動 同nginx 如下圖 3...
keepalived實現主備切換
wget tar zxvf keepalived 1.2.18 tar.gz c usr local yum install y openssl openssl devel cd keepalived 1.2.18 configure prefix usr local keepalived make...
Keepalived部署雙主熱備
二 配置keepalived主和從 2.2 配置keepalived 從 2.3 啟動keepalived 三 keepalived註冊為系統服務 四 keepalived配置nginx自動重啟 五 配置keepalived雙主熱備 上傳壓縮包 scp keppalived.tar.gz root ...