課件13 lvs實驗環(huán)境介紹

基于Linux實驗環(huán)境介紹主講:Ｍerin實驗環(huán)境L

inux

CentOS

release

5.5(Final)查看linux版本及內(nèi)核版本#lsb_release-a

列出所有版本信息(CentOS,Suse,Debian等都可以使用)#cat/etc/issue

查看系統(tǒng)版本#cat

/proc/version

查看當(dāng)前操作系統(tǒng)版本信息#uname

–a[-r]

查看版本當(dāng)前操作系統(tǒng)內(nèi)核信息#cat

/proc/version #more

/etc/redhat-release#getconf

LONG_BIT

查看系統(tǒng)是32位還是64位#cat

/proc/meminfo #cat

/proc/cpuinfo1.client:ip:112.LVSvip:1

=>eth0:0ip:

=>eth0web-server1 ip:

=>

eth0web-server2

ip:

=>eth0LVS服務(wù)器操作步驟開啟IP轉(zhuǎn)發(fā)echo

"1"

>/proc/sys/net/ipv4/ip_forward關(guān)掉ICMPecho

"0"

>/proc/sys/net/ipv4/conf/all/send_redirectsecho

"0"

>/proc/sys/net/ipv4/conf/default/send_redirectsecho

"0">/proc/sys/net/ipv4/conf/eth0/send_redirects3.IP及網(wǎng)關(guān)配置/sbin/ifconfig

eth0

broadcast

55

netmask

/sbin/ifconfig

eth0:0

1

broadcast

55

netmask

/sbin/route

add

default

gw

netmask

metric

14.測試網(wǎng)絡(luò)連通性

#ping-c

1

#ping-c

1

5.Ipvsadm配置及啟動/sbin/ipvsadm

–C/sbin/ipvsadm

-A

-t

1:80

-s

rr/sbin/ipvsadm

-a

-t

1:80

-r

:80

-m

-w

1/sbin/ipvsadm

-a

-t

1:80

-r

:80

-m

-w

1/sbin/ipvsadm保存：/etc/init.d/ipvsadm

save啟動：/etc/init.d/ipvsadm

startWeb-server1服務(wù)器操作步驟1.關(guān)閉IP轉(zhuǎn)發(fā)echo

“0">/proc/sys/net/ipv4/ip_forward3.IP及網(wǎng)關(guān)配置/sbin/ifconfig

eth0

broadcast

55

netmask

#installing

default

gw

for

vs-nat'/sbin/route

add

default

gw

#show

routing

table/bin/netstat

-rn#checking

if

DEFAULT_GWis

reachableping

-c

1

#looking

for

VIP

on

director

from

realserverping

-c

1

3.

開啟http#lsof

–i:80

查看是否有進程占用80端口

#/etc/init.d/httpd

start#/usr/local/apache2/bin/httpd啟動httpdWeb-server2服務(wù)器操作步驟1.關(guān)閉IP轉(zhuǎn)發(fā)echo

“0">/proc/sys/net/ipv4/ip_forward3.IP及網(wǎng)關(guān)配置/sbin/ifconfig

eth0

broadcast

55

netmask

修改IP地址/sbin/route

add

default

gw

配置網(wǎng)關(guān)#show

routing

table/bin/netstat-rn

查看路由表

#checking

if

DEFAULT_GWis

reachableping-c

1

#looking

for

VIP

on

director

from

realserverping-c

1

測試網(wǎng)絡(luò)連通性3.

開啟http#lsof

–i:80

查看是否有進程占用80端口

#/etc/init.d/httpd

start#/usr/local/apache2/bin/httpd啟動httpd課