云计算学习路线教程大纲课件：HTTP Server： Apache知识点：

建议使用2.4及以上的版本

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一、Apache基础

Apache: www.apache.org

软件包： httpd

服务端口: 80/tcp(http) 443/tcp(https,http+ssl)

配置文件: /etc/httpd/conf/httpd.conf

/etc/httpd/conf.d/*.conf

/etc/httpd/conf.d/welcome.conf //默认测试页面

二、安装Apache

[root@apache ~]# yum -y install httpd

[root@apache ~]# systemctl start httpd

[root@apache ~]# systemctl enable httpd

网站主目录建立测试页：

[root@apache ~]# vim /var/www/html/index.html

tianyun

[root@apache ~]# vim /var/www/html/2.php

phpinfo();

?>

192.168.31.154/index.html

[root@apache ~]# sed -ri '/^SELINUX=/cSELINUX=disabled' /etc/selinux/config

[root@apache ~]# setenforce 0

[root@apache ~]# firewall-cmd --permanent --add-service=http

[root@apache ~]# firewall-cmd --permanent --add-service=https

[root@apache ~]# firewall-cmd --reload

三、安装PHP

[root@apache ~]# yum -y install php //php作为Apache的模块

[root@apache ~]# ll /etc/httpd/modules/libphp5.so

-rwxr-xr-x. 1 root root 4588368 Jun 24 2015 /etc/httpd/modules/libphp5.so

[root@apache ~]# ll /etc/httpd/conf.d/php.conf

-rw-r--r--. 1 root root 691 Jun 24 2015 /etc/httpd/conf.d/php.conf

[root@apache ~]# systemctl restart httpd

192.168.31.154/2.php

四、安装Mariadb

[root@apache ~]# yum -y install mariadb-server mariadb

[root@apache ~]# systemctl start mariadb.service

[root@apache ~]# systemctl enable mariadb.service

[root@apache ~]# mysql_secure_installation //提升mariadb安全 [可选]

Set root password? [Y/n]

New password: 123

Re-enter new password: 123

[root@apache ~]# mysql -uroot -p123 //登录mariadb测试

MariaDB [(none)]> \q

[root@apache ~]# rm -rf /var/www/html/*

[root@apache ~]# vim /var/www/html/index.php

$link=mysql_connect('localhost','root','123');

if ($link)

echo "Successfuly";

else

echo "Faile";

mysql_close();

?>

测试结果： php无法连接mysql

五、并配置php连接Mariadb

[root@apache ~]# yum -y install php-mysql

[root@apache ~]# php -m //查看php有哪些扩展

[PHP Modules]

mysql

mysqli

[root@apache ~]# systemctl restart httpd

六、Apache基本配置

[root@tianyun ~]# vim /etc/httpd/conf/httpd.conf

ServerRoot "/etc/httpd" //安装目录

Listen 80 //监听端口

IncludeOptional conf.d/.conf //包含conf.d下的.conf文件

User apache //运行Apache的用户

Group apache //运行Apache的用户组

DirectoryIndex index.html index.php //设置默认主页

DocumentRoot //站点默认主目录

//Apache访问控制

AllowOverride None

Allow open access:

Require all granted

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配置进程和线程 针对apache2.2 仅针对面试

prefork MPM //进程模式

StartServers 10 //初始建立的进程数

MinSpareServers 10 //最小空闲的进程数

MaxSpareServers 15 //最大空闲的进程数

ServerLimit 2000 //最大启动的进程数　默认256

MaxClients 2000 //最大并发连接数 默认256

MaxRequestsPerChild 4000 //每个子进程在其生命周期内允许响应的最大请求数，0不限制

worker MPM //线程模式

StartServers 2 //初始建立的进程数

ThreadsPerChild 50 //每个进程建立的线程数

MinSpareThreads 100 //最小空闲的线程数

MaxSpareThreads 200 //最大空间的线程数

MaxClients 2000 //最大的并发访问量（线程）

MaxRequestsPerChild 0 //每个子进程在其生命周期内允许响应的最大请求数，0不限制

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忘记MySQL密码

MySQL 5.7.5 and earlier:

[root@mysql1 ~]# vim /etc/my.cnf

[mysqld]

skip-grant-tables

[root@mysql1 ~]# service mysqld restart

[root@mysql1 ~]# mysql

mysql> update mysql.user set password=password("456") where user="root" and host="localhost";

mysql> flush privileges;

mysql> \q

[root@mysql1 ~]# vim /etc/my.cnf

[mysqld]

#skip-grant-table

[root@mysql1 ~]# service mysqld restart