LAMP的搭建：
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使用两台虚拟机，一台虚拟机安装httpd及php，把php作为模块编译进httpd中，另一台安装MySQL，让php能调用mysql来读取数据。
虚拟机1：172.18.250.76 Centos6.7 安装httpd、php
虚拟机2：172.18.250.10 Centos6.7 安装mysql
利用httpd创建两基于域名的虚拟主机，分别运行wordpress博客和phpmyadmin数据库。
一：yum安装httpd
[root@localhost ~]# yum -y install httpd
1、编辑配置文件，注释DocumentRoot
[root@localhost ~]# vim /etc/httpd/conf/httpd.conf
#DocumentRoot "/var/www/html"
2、创建虚拟主机文件，编辑文件
[root@localhost php]# vim /etc/httpd/conf.d/vhost.conf
NameVirtualHost 172.18.250.76:80
ServerName www.a.com
DocumentRoot "/www/blog"
Options None
Allowoverride None
Order allow,deny
allow from all
ServerName www.b.net
DocumentRoot "/www/php"
Options None
Allowoverride None
Order allow,deny
allow from all
3、启动httpd服务，查看监听端口
[root@localhost php]# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 :::80 :::* LISTEN 2201/httpd
4、创建虚拟主机路径，并验证能否正常访问
[root@localhost conf.d]# mkdir -p /www/blog
[root@localhost conf.d]# mkdir -p /www/php
[root@localhost conf.d]# cd /www/php
[root@localhost php]# echo "
[root@localhost conf.d]# cd /www/blog
[root@localhost blog]# echo "www.a.com">index.html
重启httpd服务，验证：
二、yum安装php
[root@localhost php]# yum -y install php
[root@localhost php]# httpd -M //查看httpd所加载的模块
php5_module (shared) //php已经编辑进httpd
验证php能否正常加载：
[root@localhost php.d]# vim /www/blog/index.php
三、安装mysql
[root@lsj ~]# yum -y install mysql-server
[root@lsj ~]# service mysqld start
授权一个远程账号，让PHP能访问mysql
mysql> grant all on *.* to admin@'172.18.250.76' identified by "admin";
安装mysql驱动，支持php远程
[root@localhost modules]# yum -y install php-mysql
[root@localhost modules]# vim /www/blog/index.php
四、安装wordpress和phpmyadmin软件
[root@localhost wordpress]# unzip wordpress-4.3.1-zh_CN.zip
[root@localhost blog]# cd wordpress
[root@localhost wordpress]# cp wp-config-sample.php wp-config.php
[root@localhost wordpress]# vim wp-config.php
/** WordPress数据库的名称 */
define('DB_NAME', 'mytest');
/** MySQL数据库用户名 */
define('DB_USER', 'admin');
/** MySQL数据库密码 */
define('DB_PASSWORD', 'admin');
/** MySQL主机 */
define('DB_HOST', '172.18.250.10'); 验证能都正常登陆：
登陆博客：
[root@localhost blog]# cd /www/php/
[root@localhost php]# unzip phpMyAdmin-4.4.14.1-all-languages.zip
[root@localhost php]# ln -s phpMyAdmin-4.4.14.1-all-languages pma
生成一段随机数，用作登陆phpmyadmin
[root@localhost pma]# cp config.sample.inc.php config.inc.php
[root@localhost pma]# openssl rand -base64 30
d8yhR7wOU5+HzeZjGEusyAmNiQv/+rTzWQuoDiCR
[root@localhost pma]# vim config.inc.php
$cfg['blowfish_secret'] = 'd8yhR7wOU5+HzeZjGEusyAmNiQv/+rTzWQuoDiCR';
$cfg['Servers'][$i]['host'] = '172.18.250.10';
验证网页是否能打开：
安装个php-mbstring，支持中文字符集
[root@localhost pma]# rpm -ivh php-mbstring-5.3.3-40.el6_6.x86_64.rpm
刷新页面：
输入刚才授权的账号密码：
。。。。。。
解决思路：
1、升级mysql版本。
2、降级phpmyadmin版本。
降低版本的方法：
[root@localhost pma]# cd libraries/
[root@localhost libraries]# vim common.inc.php
if (PMA_MYSQL_INT_VERSION < 50500) {
改成
if (PMA_MYSQL_INT_VERSION < 50100 { 再次刷新，输入账号密码：
OK，数据库登录成功。
五、安装Xcache对php进行加速
[root@localhost libraries]# yum -y install php-xcache
1、先测试没开启加速前的请求速度：
[root@localhost setup]# ab -n100 -c10 http://172.18.250.76/wordpress/index.php
Benchmarking 172.18.250.76 (be patient).....done
Server Software: Apache/2.2.15
Server Hostname: 172.18.250.76
Server Port: 80
Document Path: /wordpress/index.php
Document Length: 0 bytes
Concurrency Level: 10
Time taken for tests: 4.792 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Non-2xx responses: 100
Total transferred: 36800 bytes
HTML transferred: 0 bytes
Requests per second: 20.87 [#/sec] (mean)
Time per request: 479.161 [ms] (mean)
Time per request: 47.916 [ms] (mean, across all concurrent requests)
Transfer rate: 7.50 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 3.8 0 20
Processing: 143 459 331.6 352 1783
Waiting: 143 458 331.6 343 1783
Total: 143 460 331.4 360 1783
Percentage of the requests served within a certain time (ms)
50% 360
66% 405
75% 512
80% 581
90% 895
95% 1375
98% 1720
99% 1783
100% 1783 (longest request)
2、重启httpd服务，开启Xcache，在测试下
[root@localhost setup]# ab -n100 -c10
Benchmarking 172.18.250.76 (be patient).....done
Server Software: Apache/2.2.15
Server Hostname: 172.18.250.76
Server Port: 80
Document Path: /wordpress/index.php
Document Length: 0 bytes
Concurrency Level: 10
Time taken for tests: 1.659 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Non-2xx responses: 100
Total transferred: 36800 bytes
HTML transferred: 0 bytes
Requests per second: 60.27 [#/sec] (mean) //三倍加速请求
Time per request: 165.908 [ms] (mean)
Time per request: 16.591 [ms] (mean, across all concurrent requests)
Transfer rate: 21.66 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 2.6 0 10
Processing: 41 158 27.5 158 235
Waiting: 40 158 27.6 158 235
Total: 41 159 28.7 158 245
Percentage of the requests served within a certain time (ms)
50% 158
66% 166
75% 168
80% 171
90% 192
95% 213
98% 240
99% 245
100% 245 (longest request)
六：对访问phpmyadmin网页时进行SSL加密认证
签证及CA认证是怎么进行可以参考我的博文：Linux中加密解密技术及CA认证
1、先下载mod_ssl模块，因为httpd2.2没包含这个模块
[root@localhost ssl]# yum -y install mod_ssl
2、编辑/etc/httpd/conf.d/ssl.conf文件
[root@localhost ssl]# vim /etc/httpd/conf.d/ssl.conf
DocumentRoot "/www/php" //取消注释，修改虚拟主机的url
ServerName //虚拟主机名
SSLEngine on //确保为on
SSLCertificateFile /etc/httpd/ssl/httpd.crt //存放签署的证书
SSLCertificateFile /etc/httpd/ssl/httpd.key //存放私钥的位置
3、重启httpd服务器，查看443端口是否启用
[root@localhost ssl]# netstat -ntlp
tcp 0 0 :::443 :::* LISTEN 6080/httpd
4、验证页面是否能访问
5、从虚拟机把CA证书下载到windows主机上
[root@www CA]# sz cacert.pem
6、把证书导入到浏览器当中
7、重新打开浏览器，输入虚拟主机名：
网站栏目：yum安装lamp及Xcache加速
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