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This article mainly explains the "method of installation and configuration of lvs in centos". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn the method of installation and configuration of lvs in centos.

I. lvs-nat mode

Network configuration:

The code is as follows:

Lvs-server eth0: host-only adapter 192.168.56.101

Lvs-server eth2: Internal 192.168.0.1

Real-server-1 eth0:Internal 192.168.0.2

Real-server-2 eth0:Internal 192.168.0.3

Lvs-server:

1. Install ipvsadm software

The code is as follows:

Yum-y install ipvsadm*

Echo 1 > / proc/sys/net/ipv4/ip_forward router function, ip forwarding

Ipvsadm-C

Ipvsadm-At 192.168.56.101 rr 80-s round robin mode

Ipvsadm-at 192.168.56.101 80-r 192.168.0.2-m

Ipvsadm-at 192.168.56.101 80-r 192.168.0.3-m

Ipvsadm-L-n

2 、 real-server-1:

The code is as follows:

Ifconfig eth0 192.168.0.2 netmask 255.255.255.0

Route add default gw 192.168.0.1

3 、 real-server-2

The code is as follows:

Ifconfig eth0 192.168.0.3 netmask 255.255.255.0

Route add default gw 192.168.0.1

Route-n View routing tabl

II. Lvs-ipturn

Network configuration:

The code is as follows:

Lvs-server eth0:host-only adapter 192.168.56.101

Real-server-1 eth0:host-only adapter 192.168.56.102

Real-server-2 eth0:host-only adapter 192.168.56.103

Lvs-server:

Configure virtual ip, namely vip

The code is as follows:

Ifconfig tunl0 192.168.56.10 netmask 255.255.255.255 up

Route add-host 192.168.56.10 dev tunl0

Ivsadm-C

Ipvsadm-At 192.168.56.10 rr 80-s rr

Ipvsadm-at 192.168.56.10 80-r 192.168.56.102-I

Ipvsadm-at 192.168.56.10 80-r 192.168.56.103-I

Ipvsadm-L-n

Real-server-1:

The code is as follows:

Ifconfig tunl0 192.168.56.10 netmask 255.255.255.255 up

Route add-host 192.168.56.10 dev tunl0

Echo 1 > / proc/sys/net/ipv4/conf/tunl0/arp_ignore

Echo 2 > / proc/sys/net/ipv4/conf/tunl0/arp_announce

Echo 1 > / proc/sys/net/ipv4/conf/all/arp_ignore

Echo 2 > / proc/sys/net/ipv4/conf/all/arp_announce

Real-server-2:

The code is as follows:

Ifconfig tunl0 192.168.56.10 netmask 255.255.255.255 up

Route add-host 192.168.56.10 dev tunl0

Echo 1 > / proc/sys/net/ipv4/conf/tunl0/arp_ignore

Echo 2 > / proc/sys/net/ipv4/conf/tunl0/arp_announce

Echo 1 > / proc/sys/net/ipv4/conf/all/arp_ignore

Echo 2 > / proc/sys/net/ipv4/conf/all/arp_announce

III. Lvs-dr

Network configuration:

The code is as follows:

Lvs-server eth0:host-only adapter 192.168.56.101

Real-server-1 eth0:host-only adapter 192.168.56.102

Real-server-2 eth0:host-only adapter 192.168.56.103

Lvs-server:

Ifconfig eth0:0 192.168.56.10 netmask 255.255.255.255

Route add-host 192.168.56.10 dev eth0:0

Ipvs:

The code is as follows:

Ipvsadm-C ipvsadm-At 192.168.56.10 s rr ipvsadm-at 192.168.56.10 At 80-r 192.168.56.102-g ipvsadm-at 192.168.56.10 s rr ipvsadm 80-r 192.168.56.103-g ipvsadm-L-n

Real-server-1: ifconfig lo:0 192.168.56.10 netmask 255.255.255.255 route add-host 192.168.56.10 dev lo:0 echo 1 > / proc/sys/net/ipv4/conf/lo/arp_ignore echo 2 > / proc/sys/net/ipv4/conf/lo/arp_announce echo 1 > / proc/sys/net/ipv4/conf/all/arp_ignore echo 2 > / proc/sys/net/ipv4/conf/all/arp_announce

Real-server-2: ifconfig lo:0 192.168.56.10 netmask 255.255.255.255 route add-host 192.168.56.10 dev lo:0 echo 1 > / proc/sys/net/ipv4/conf/lo/arp_ignore echo 2 > / proc/sys/net/ipv4/conf/lo/arp_announce echo 1 > / proc/sys/net/ipv4/conf/all/arp_ignore echo 2 > / proc/sys/net/ipv4/conf/all/arp_announce

Thank you for reading, the above is the content of "lvs installation and configuration method in centos". After the study of this article, I believe you have a deeper understanding of the installation and configuration method of lvs in centos, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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