Apache 指向错误的 vhost conf 文件

Question

I have a fresh VPS on Ubuntu 18. Have installed only PHP and Apache. Created only a one vhost config:

<VirtualHost *:80>
  ServerName vp123.ovh.net
  DocumentRoot /var/www/app
</VirtualHost>

After apache realod, the domain is pointing to default folder /var/www/html instead of my /var/www/app

000-default.conf is default:

<VirtualHost *:80>
        # The ServerName directive sets the request scheme, hostname and port that
        # the server uses to identify itself. This is used when creating
        # redirection URLs. In the context of virtual hosts, the ServerName
        # specifies what hostname must appear in the request's Host: header to
        # match this virtual host. For the default virtual host (this file) this
        # value is not decisive as it is used as a last resort host regardless.
        # However, you must set it for any further virtual host explicitly.
        #ServerName www.example.com

        ServerAdmin webmaster@localhost
        DocumentRoot /var/www/html

        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
        # error, crit, alert, emerg.
        # It is also possible to configure the loglevel for particular
        # modules, e.g.
        #LogLevel info ssl:warn

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        # For most configuration files from conf-available/, which are
        # enabled or disabled at a global level, it is possible to
        # include a line for only one particular virtual host. For example the
        # following line enables the CGI configuration for this host only
        # after it has been globally disabled with "a2disconf".
        #Include conf-available/serve-cgi-bin.conf
</VirtualHost>

apache2ctl -S outputs:

VirtualHost configuration:
*:80                   is a NameVirtualHost
         default server vp123.ovh.net (/etc/apache2/sites-enabled/000-default.conf:1)
         port 80 namevhost vp123.ovh.net (/etc/apache2/sites-enabled/000-default.conf:1)
         port 80 namevhost vp123.ovh.net (/etc/apache2/sites-enabled/vp123.ovh.net.conf:1)

ServerRoot: "/etc/apache2"
Main DocumentRoot: "/var/www/html"
Main ErrorLog: "/var/log/apache2/error.log"
Mutex default: dir="/var/run/apache2/" mechanism=default
Mutex mpm-accept: using_defaults
Mutex watchdog-callback: using_defaults
PidFile: "/var/run/apache2/apache2.pid"
Define: DUMP_VHOSTS
Define: DUMP_RUN_CFG
User: name="www-data" id=33
Group: name="www-data" id=33

When pointing a new domain to this server - works perfect. But this "default domain" is always pointing to default folder. Disabling 000-default.conf helps but I don't want do that.

Answer 1

Apache selects the virtual host as described in the documentation .

Considering the vhost selection process your options are:

1. Disable the default vHost, you don't need it.
2. Really. Why would you want to keep it?
3. Change the default vHost declaration to <VirtualHost *> . Therefore making the other vHost the default for requests targeted at port 80.
4. Add your servers ip address to your vhost declaration. ( <VirtualHost 1.2.3.4:80> ) It will then take precedence over the default vhost *:80 for requests targeted at that IP-address. Note that requests to other to other IPs of your server will still be served by the *:80 -vHost.
5. Set DocumentRoot /var/www/app inside your default vHost. This will require you to make configuration changes in multiple vHost each time and thus increases the chance of making mistakes.

Answer 2

The virtual host defined at 000-default.conf doesn't have a ServerName directive so it inherits the value from its parent container (in this case the main server settings) and I presume such directive also has vp123.ovh.net as value. Thus Apache considers the first virtual host matches.

A ServerName should be specified inside each <VirtualHost> block. If it is absent, the ServerName from the "main" server configuration will be inherited.

Since you want to use that name elsewhere a possible solution is to set a explicit value that doesn't interfere, eg:

<VirtualHost *:80>
  ServerName localhost
  DocumentRoot /var/www/html
</VirtualHost>