Shulou(Shulou.com)06/03 Report--

Server Load Balancing is a network service device that distributes traffic to multiple CVMs (computing clusters). It can quickly improve the external service capability of the application system through traffic distribution; hide the actual service port to enhance the security of the internal system; by eliminating the service single point of failure, improve the reliability of the application system. Today, I will show you the methods and steps of loading the LVS kernel module.

Schedule CVM:

Two network cards:

Vmnet1 private network: 192.168.80.100

Vmnet2 public network: 192.168.90.100 (the address of the scheduler is the address of the public network port)

-load LVS kernel module--

LVS, which is now part of the Linux kernel, is compiled as an ip_vs module by default and can be invoked automatically if necessary. You can manually load the ip_vs module and view the version information of the ip_vs module on the current system by doing the following

[root@lss ~] # cat / proc/net/ip_vs

Cat: / proc/net/ip_vs: there is no such file or directory

[root@lss ~] # modprobe ip_vs / / load ip_vs module

[root@lss ~] # cat / proc/net/ip_vs / / View ip_vs version information

[root@lss ~] # rpm-ivh / mnt/Packages/ipvsadm-1.27-7.el7.x86_64.rpm / / install management software, no need to start

[root@lss ~] # vi nat.sh

#! / bin/bash

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

Ipvsadm-C

Ipvsadm-A-t 192.168.90.100 ipvsadm 80-s rr

Ipvsadm-a-t 192.168.90.100 purl 80-r 192.168.80.102 purl 80-m

Ipvsadm-a-t 192.168.90.100 purl 80-r 192.168.80.101 purl 80-m

Ipvsadm-Ln

[root@lss ~] # sh nat.sh

192.168.80.101 server:

Vmnet1 private network: 192.168.80.101

Gateway: 192.168.80.100

[root@lss01 ~] # yum install-y httpd

[root@lss01 ~] # vi / etc/httpd/conf/httpd.conf

ServerName www.aa.com

[root@lss01 ~] # vi / var/www/html/index.html

Server aa

[root@lss01 ~] # service httpd restart

[root@lss01 ~] # vi / etc/sysconfig/network-scripts/ifcfg-ens33

GATEWAY=192.168.80.100

[root@lss01 ~] # service network restart

192.168.80.102 server:

Vmnet1 private network: 192.168.80.102

Gateway: 192.168.80.100

[root@lss02 ~] # yum install-y httpd

[root@lss02 ~] # vi / etc/httpd/conf/httpd.conf

ServerName www.bb.com

[root@lss02 ~] # vi / var/www/html/index.html

Server bb

[root@lss02 ~] # service httpd restart

[root@lss02 ~] # vi / etc/sysconfig/network-scripts/ifcfg-ens33

GATEWAY=192.168.80.100

[root@lss02 ~] # service network restart

Real browser test:

Vmnet1:192.168.80.88

Vmnet2:192.168.90.88

If there is anything else you need to know, you can find our professional technical engineer on the official website. The technical engineer has more than ten years of experience in the industry, so it will be more detailed and professional than the editor's answer. Official website link www.yisu.com

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