Apache 虚拟主机配置与优化 Print

Apache 虚拟主机（VirtualHost）允许在同一台服务器上托管多个网站。

启用必要模块

sudo a2enmod rewrite
sudo a2enmod ssl
sudo a2enmod headers
sudo a2enmod expires

创建虚拟主机配置

sudo nano /etc/apache2/sites-available/example.com.conf

<VirtualHost *:80>
    ServerAdmin webmaster@example.com
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot /var/www/example

    <Directory /var/www/example>
        Options Indexes FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>

    ErrorLog ${APACHE_LOG_DIR}/example_error.log
    CustomLog ${APACHE_LOG_DIR}/example_access.log combined
</VirtualHost>

sudo a2ensite example.com.conf
sudo systemctl reload apache2

MPM 模式选择

# 查看当前 MPM
sudo apachectl -V | grep -i mpm

# 切换 MPM（以 event 为例）
sudo a2dismod mpm_prefork mpm_worker
sudo a2enmod mpm_event
sudo systemctl restart apache2

性能优化

# 启用压缩
sudo a2enmod deflate

# 配置缓存
sudo a2enmod expires
sudo a2enmod cache