导读 Apache服务器是现代操作系统包括UNIX和Windows等开发和维护开源的HTTP服务器，apache提供一个安全、高效、可扩展的服务器，提供与当前HTTP标准同步的HTTP服务。
实验环境

操作系统：Centos 8

web应用：apache

内网IP：192.168.3.21

执行：root

以root或具有sudo权限的用户身份登录执行如下操作。

安装httpd服务
[root@linuxcool ~]# yum install httpd-devel.x86_64 httpd.x86_64 httpd-tools.x86_64
验证httpd是否安装成功
[root@linuxcool ~]# httpd -v
Server version: Apache/2.4.6 (CentOS)
Server built:   Apr  2 2020 13:13:23
启动httpd服务
[root@linuxcool ~]# systemctl start httpd.service 
       
[root@linuxcool ~]# systemctl status httpd.service 
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
   Active: active (running) since Fri 2020-05-22 12:23:03 CST; 25s ago
     Docs: man:httpd(8)
           man:apachectl(8)
 Main PID: 952 (httpd)
   Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
    Tasks: 6
   Memory: 3.6M
   CGroup: /system.slice/httpd.service
           ├─952 /usr/sbin/httpd -DFOREGROUND
           ├─953 /usr/sbin/httpd -DFOREGROUND
           ├─954 /usr/sbin/httpd -DFOREGROUND
           ├─955 /usr/sbin/httpd -DFOREGROUND
           ├─956 /usr/sbin/httpd -DFOREGROUND
           └─957 /usr/sbin/httpd -DFOREGROUND

May 22 12:23:03 linuxcool systemd[1]: Starting The Apache HTTP Server...
May 22 12:23:03 linuxcool httpd[952]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, u...message
May 22 12:23:03 linuxcool systemd[1]: Started The Apache HTTP Server.
Hint: Some lines were ellipsized, use -l to show in full.

apache安装成功，默认web目录/var/www/

测试
//192.168.3.21/

安装成功！

配置apache虚拟主机
创建网站目录
[root@linuxcool ~]# mkdir -p /var/www/web1
[root@linuxcool ~]# mkdir -p /var/www/web2
web1添加index.html
[root@linuxcool ~]# vim /var/www/web1/index.html
<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>Welcome to Web1</title>
  </head>
  <body>
    <h1>Success! Web1 home page!</h1>
  </body>
</html>
web2添加index.html
[root@linuxcool ~]# vim /var/www/web2/index.html
<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>Welcome to Web2</title>
  </head>
  <body>
    <h1>Success! Web2 home page!</h1>
  </body>
</html>
授权web目录权限
[root@linuxcool ~]# chown -R apache: /var/www/web1/
[root@linuxcool ~]# chown -R apache: /var/www/web2/
创建虚拟主机文件

#web1

[root@linuxcool ~]# vim /etc/httpd/conf.d/web1.conf
<VirtualHost *:80>
ServerName web1.com
ServerAlias www.web1.com
ServerAdmin webmaster@example.com
DocumentRoot /var/www/web1

<Directory /var/www/web1/>
Options -Indexes +FollowSymLinks
AllowOverride All
</Directory>

ErrorLog /var/log/httpd/example.com-error.log
CustomLog /var/log/httpd/example.com-access.log combined
</VirtualHost>

#web2

[root@linuxcool ~]# vim /etc/httpd/conf.d/web2.conf
<VirtualHost *:80>
ServerName web2.com
ServerAlias www.web2.com
ServerAdmin webmaster@example.com
DocumentRoot /var/www/web2

<Directory /var/www/web2/>
Options -Indexes +FollowSymLinks
AllowOverride All
</Directory>

ErrorLog /var/log/httpd/example.com-error.log
CustomLog /var/log/httpd/example.com-access.log combined
</VirtualHost>
重启httpd服务
[root@linuxcool ~]# systemctl restart httpd.service
验证httpd虚拟主机结果

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