安裝centos
centos7---vs
centos6---RS1、RS2
centos6---client

最小化安裝centos,配置yum源萧锉；
cd /etc/yum.repos.d/
rm-rf *
vi base.repo
[base]
baseurl=file:///mnt
gpgcheck=0
#yum repolist
#yum makecache
#yum install vim 
#yum install autofs
chkconfig autofs on 
service autofs start
#vim base.repo
[base]
baseurl=file:///misc/cd
gpgcheck=0

設(shè)置ip地址驼唱，設(shè)置為靜態(tài)ip；
使用VMware 僅主機(jī)和自定義模式（僅主機(jī)）
1驹暑、vs外網(wǎng)網(wǎng)卡設(shè)置為自定義模式玫恳；ip;192.168.183.151
   vs內(nèi)網(wǎng)網(wǎng)卡設(shè)置為僅主機(jī)模式；ip：192.168.226.151
2优俘、RS1京办；僅主機(jī)模式，ip;192.168.226.140
   RS2帆焕；僅主機(jī)模式惭婿，ip;192.168.226.141
3、client;自定義模式叶雹；ip;192.168.183.130

關(guān)閉防火墻及SElinux設(shè)置财饥；
centos6;
#chkconfig iptables off
#chkconfig list iptables
#vim /etc/selinux/conf
#setenforce 0
#getenforce
centos7;
systemctl enable firewalld
systemctl stop firewalld
#vim /etc/selinux/conf
#setenforce 0
#getenforce

1、VS（centos7）安裝ipvsadm折晦；
      設(shè)置VS服務(wù)模式钥星；
      設(shè)置VS的算法；
      開(kāi)啟ipv4轉(zhuǎn)發(fā)功能满着；
2谦炒、RS（centos6）安裝httpd;
      設(shè)置簡(jiǎn)單的網(wǎng)頁(yè)；
      將RS網(wǎng)關(guān)指向VS（192.168.226.151）风喇；
3宁改、client客戶(hù)端訪問(wèn)vs端網(wǎng)頁(yè)；

 1魂莫、VS (centos 7)上安裝ipvsadm还蹲，設(shè)置/etc/sysctl.conf配置文件、設(shè)置VS服務(wù)模式及算法;
 #yum install ipvsadm
 #Vim /etc/sysctl.conf
 Net.ipv4.ip_forward=1
 #ipvsadm -A -t 192.168.183.151:80 -s rr---模式
 #ipvsadm -a -t 192.168.183.151:80 -r 192.168.226.140 -m ---算法
 #ipvsadm -a -t 192.168.183.151:80 -r 192.168.226.141 -m 
2、RS服務(wù)器將網(wǎng)關(guān)指向VS服務(wù)器谜喊，安裝httpd并啟用鲸沮；
 RS1;
 # vim /etc/sysconfig/network-scripts
 DEVICE=eth0
 IPADDR=192.168.226.140
 PREFIX=24
 GATEWAY=192.168.226.151
 RS2;
 # vim /etc/sysconfig/network-scripts
 DEVICE=eth0
 IPADDR=192.168.226.141
 PREFIX=24
 GATWAY=192.168.226.151
 #yum install httpd
 #service httpd start
 #chkconfig httpd on
 創(chuàng)建簡(jiǎn)單的網(wǎng)頁(yè)；
 echo RS1 SERVER >/var/www/html/index.html
 echo RS2 SERVER >/var/www/html/index.html
3锅论、client客戶(hù)端訪問(wèn)網(wǎng)頁(yè),檢測(cè)是否成功；
 #curl 192.168.183.151 
 #if i in {1..10};do curl 192.168.183.151;done
 [root@client ~]#for i in {1..10};do curl 192.168.183.151;sleep 1;done
 RS1 SERVICE
 RS2 SERVICE
 RS1 SERVICE
 RS2 SERVICE
 RS1 SERVICE
 RS2 SERVICE
 RS1 SERVICE
 RS2 SERVICE
 RS1 SERVICE
 RS2 SERVICE
4楣号、在vs上查看連接狀態(tài)最易；
 #Ipvsadm -Ln 
 [root@VS1 ~]# ipvsadm -Ln
 IP Virtual Server version 1.2.1 (size=4096)
 Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
 TCP  192.168.183.151:80 rr
  -> 192.168.226.140:80           Masq    1      0          8         
  -> 192.168.226.141:80           Masq    1      0          8 
5、測(cè)試性能炫狱；
 [root@client ~]#ab -c 100 -n 10000 http://192.168.183.151/
 This is ApacheBench, Version 2.3 <$Revision: 655654 $>
 Copyright 1996 Adam Twiss, Zeus Technology Ltd,        http://www.zeustech.net/
 Licensed to The Apache Software Foundation, http://www.apache.org/

 Benchmarking 192.168.183.151 (be patient)
 Completed 1000 requests
 Completed 2000 requests
 Completed 3000 requests
 Completed 4000 requests
 Completed 5000 requests
 Completed 6000 requests
 Completed 7000 requests
 Completed 8000 requests
 Completed 9000 requests
 Completed 10000 requests
 Finished 10000 requests
 Server Software:        Apache/2.2.15
 Server Hostname:        192.168.183.151
 Server Port:            80
 Document Path:          /
 Document Length:        12 bytes
 Concurrency Level:      100
 Time taken for tests:   4.102 seconds
 Complete requests:      10000
 Failed requests:        0
 Write errors:           0
 Total transferred:      2785829 bytes
 HTML transferred:       120036 bytes
 Requests per second:    2437.62 [#/sec] (mean)
 Time per request:       41.024 [ms] (mean)
 Time per request:       0.410 [ms] (mean, across all concurrent requests)
 Transfer rate:          663.16 [Kbytes/sec] received
 Connection Times (ms)
              min  mean[+/-sd] median   max
 Connect:        1    8   9.4      6     188
 Processing:     5   33  16.7     30     231
 Waiting:        3   32  16.2     30     231
 Total:         22   40  19.1     39     240
 Percentage of the requests served within a certain time (ms)
  50%     39
  66%     41
  75%     42
  80%     42
  90%     44
  95%     45
  98%     48
  99%     56
 100%    240 (longest request)
6藻懒、查看誰(shuí)在訪問(wèn)；
 Cat /var/log/httpd/access_log
7视译、查看誰(shuí)訪問(wèn)的數(shù)量嬉荆；
 [root@RS1 network-scripts]#cut -d" " -f1 /var/log/httpd/access_log  |sort -  nr|uniq -c|sort -n
      1 192.168.226.140
      3 192.168.226.151
     10 ::1
    102 192.168.183.151
  10328 192.168.183.130
8、查看每秒鐘的訪問(wèn)數(shù)據(jù)平均速度酷含；
 [root@VS1 ~]# ipvsadm -Ln --rate
 IP Virtual Server version 1.2.1 (size=4096)
 Prot LocalAddress:Port                 CPS    InPPS   OutPPS    InBPS     OutBPS
  -> RemoteAddress:Port
 TCP  192.168.183.151:80                  1        5        5      447      545
  -> 192.168.226.140:80                  0        3        2      223      272
  -> 192.168.226.141:80                  0        3        2      224      273
9鄙早、更改vs算法，更改RS權(quán)數(shù)椅亚；
 Ipvsadm -E -t 192.168.183.151:80 -s wrr
 Ipvsadm -e -t 192.168.183.151:80 -r 192.168.226.141 -m -w 3
再次訪問(wèn)時(shí)會(huì)有變化限番；
 [root@client ~]#for i in {1..100};do curl 192.168.183.151;sleep 1;done
 RS2 SERVICE
 RS1 SERVICE
 RS2 SERVICE
 RS2 SERVICE
 RS2 SERVICE
 RS1 SERVICE

 刪除網(wǎng)卡模塊；
 /etc/udev/rules.d/70-persistent-ipoib.rules 
- 卸載模塊
- Rmmod  e1000
- Modprobe e1000
添加ip地址
ip a add 192.168.226.151/24 dev eth0