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

最小化安裝centos,配置yum源；
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

設置ip地址，設置為靜態ip；
使用VMware 僅主機和自定義模式（僅主機）
1、vs外網網卡設置為自定義模式；ip;192.168.183.151
   vs內網網卡設置為僅主機模式；ip：192.168.226.151
2、RS1；僅主機模式，ip;192.168.226.140
   RS2；僅主機模式，ip;192.168.226.141
3、client;自定義模式；ip;192.168.183.130

關閉防火墻及SElinux設置；
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；
      設置VS服務模式；
      設置VS的算法；
      開啟ipv4轉發功能；
2、RS（centos6）安裝httpd;
      設置簡單的網頁；
      將RS網關指向VS（192.168.226.151）；
3、client客戶端訪問vs端網頁；

 1、VS (centos 7)上安裝ipvsadm，設置/etc/sysctl.conf配置文件、設置VS服務模式及算法;
 #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服務器將網關指向VS服務器，安裝httpd并啟用；
 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
 創建簡單的網頁；
 echo RS1 SERVER >/var/www/html/index.html
 echo RS2 SERVER >/var/www/html/index.html
3、client客戶端訪問網頁,檢測是否成功；
 #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、在vs上查看連接狀態；
 #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、測試性能；
 [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、查看誰在訪問；
 Cat /var/log/httpd/access_log
7、查看誰訪問的數量；
 [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、查看每秒鐘的訪問數據平均速度；
 [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、更改vs算法，更改RS權數；
 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
再次訪問時會有變化；
 [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