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Lvs之直接路由模式DR配置

2016-03-23 19:55 393 查看
环境:rhel6.5

Yum源服务器 172.25.254.101

lvs-server 172.25.254.100(外) 172.25.0.100(内)

Real-server1 172.25.0.110
real-server 172.25.0.120

准备:yum 源配置如下(3台都配):

# Main rhel6.5 server

[base]

name=Instructor Server Repository

baseurl=http://172.25.254.101/rhel6.5

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

# HighAvailability rhel6.5

[HighAvailability]

name=Instructor HighAvailability Repository

baseurl=http://172.25.254.101/rhel6.5/HighAvailability

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

# LoadBalancer packages

[LoadBalancer]

name=Instructor LoadBalancer Repository

baseurl=http://172.25.254.101/rhel6.5/LoadBalancer

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

# ResilientStorage

[ResilientStorage]

name=Instructor ResilientStorage Repository

baseurl=http://172.25.254.101/rhel6.5/ResilientStorage

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

# ScalableFileSystem

[ScalableFileSystem]

name=Instructor ScalableFileSystem Repository

baseurl=http://172.25.254.101/rhel6.5/ScalableFileSystem

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

安装ipvsadm

Yum install -y ipvsadm

测试ipvsadm:

Ipvsadm -L
## IP Virtual Server version 1.2.1 (size=4096)
## Prot LocalAddress:Port Scheduler Flags
## -> RemoteAddress:Port Forward Weight ActiveConn InActConn

这样就是好的

添加规则(lvs-server):

ipvsadm -A -t 172.25.254.100:80 -s rr ##使用rr算法
ipvsadm -a -t 172.25.254.100:80 -r 172.25.0.110:80 -g
ipvsadm -a -t 172.25.254.100:80 -r 172.25.0.120:80 -g

检查规则:

ipvsadm -L
# IP Virtual Server version 1.2.1 (size=4096)
# Prot LocalAddress:Port Scheduler Flags
# -> RemoteAddress:Port Forward Weight ActiveConn InActConn
# TCP 172.25.254.100:80 rr
# -> 172.25.0.110:80 Route 1 0 0
# -> 172.25.0.120:80 Route 1 0 0
这样是正确的,ipvsadm --clear 清楚规则

在两台realserver上添加浮动ip:

Ifconfig lo:0 172.25.254.100 netmask 255.255.255.255

Vim /etc/sysctl.conf

net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
添加这两行
#net.bridge.bridge-nf-call-ip6tables = 0
#net.bridge.bridge-nf-call-iptables = 0
#net.bridge.bridge-nf-call-arptables = 0
注释这三行

sysctl -p ##没有error即可

两台realserver配置apache:

Yum install -y httpd
分别在各自发布目录下写点东西 (最好有所区别)

启动httpd:
Service httpd start

在同172.25.254.100网段的主机中打开浏览器,输入172.25.254.100,按F5刷新,每次都会连接到不同的主机(rr算法)。ipvsadm -Ln查看每台主机的连接次数。
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