Nginx load balancer how to deploy dual-computer hot standby methods and steps

The following brings you nginx Load Balancer how to deploy dual hot standby methods and steps, hoping to bring you some help in practical application, Load Balancer involves many things, theory is not much, there are many books on the Internet, today we will use the accumulated experience in the industry to do an answer.

deployment

ip allocation nginx192.168.1.5 host 192.168.1.6 standby floating ip192.168.1.7

Set floating ip first (both active and standby machines need to be set)

Open the network card eth0 and configure the network parameters

Copy eth0 to eth0:1

modified vim eth0:1

NAME = eth0:1

DEVICE = eth0:1

IPADDR = 192.168.1.7

Turn on forwarding

echo "1" > /proc/sys/net/ipv4/ip_forward

Modify the/etc/sysctl.conf file so that packet forwarding takes effect automatically at system startup:

# Controls IP packet forwarding

net.ipv4.ip_forward = 1

restart the network

service network restart

Install keepalived

yum install keepalived -y

modify the configuration file

vim /etc/keepalived/keepalived.conf

Host configuration

global_defs {

notification_email {

#baojing@163.com Set alarm

}

router_id LVS_DEVEL

}

vrrp_script chk_http_port {

script "