In the DR cluster mode, LVS load balancer as access entry of the cluster, but is not used as a gateway; all server nodes in the pool are each access the Internet , send to the client Web response packet that does not require LVS load schedule device .
The first step: Turn off the firewall and selinux
systemctl stop firewalld
iptables -F
setenforce 0
The second step, a scheduler configuration
yum -y install ipvsadm
yum -y install ipvsadm
ifconfig ens32:0 192.168.200.254 netmask 255.255.255.0
ifconfig ens32:0
The third step, the distribution
ipvsadm -A -t 192.168.200.254:80 -s rr
ipvsadm -a -t 192.168.200.254:80 -r 192.168.200.113:80 -g -w 1
A fourth step of modifying the machine node
Configuring a virtual interface
ifconfig lo:0 192.168.200.254 netmask 255.255.255.255
ifconfig lo:0
A fifth step, the node installation
yum -y install httpd
Test page echo "...."> /var/www/html/index.html
systemctl start httpd
The sixth step, the debugger adjust machine parameters
vim write down /etc/sysctl.conf
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net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.default.arp_ignore = 1
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
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Open: sysctl -p
You can test the browser, with net input test methods
Seven-step
query load state case
ipvsadm -Lnc