Ubuntu Apache 虚拟主机指向错误的目录？

我正在运行安装了 Apache 的 Ubuntu 14.04 LTS 服务器。我设置了 3 个虚拟主机，还有另一个默认服务器来捕获所有其他未处理的请求。默认服务器的文档根目录为 /var/www/。其他 3 个虚拟主机的文档根目录为 /var/www/html/.../。

我在各自的域名上启用了所有三个虚拟主机，此时仅可用于本地访问以进行测试。但是，每当我尝试访问三个虚拟主机之一时，我都会立即启动到默认服务器的文档根目录。

这是其中一个虚拟主机的配置，其他的几乎相同，除了一些显然必须更改的字段（文档根目录、服务器名称）。我已经替换了服务器名称和文档根目录，但两者都是合法的并且存在于服务器上，如果这很重要的话。

<VirtualHost [example.com]>
DocumentRoot "/var/www/html/[Directory]“
<Directory "/var/www/html/[Directory]“>
    allow from all
    Options None
    Require all granted
</Directory> 
ServerName [example.com] 
</VirtualHost>

这是 default-ssl.conf 文件。

<IfModule mod_ssl.c>
<VirtualHost _default_:443>
    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

    #   SSL Engine Switch:
    #   Enable/Disable SSL for this virtual host.
    SSLEngine on

    #   A self-signed (snakeoil) certificate can be created by installing
    #   the ssl-cert package. See
    #   /usr/share/doc/apache2/README.Debian.gz for more info.
    #   If both key and certificate are stored in the same file, only the
    #   SSLCertificateFile directive is needed.
    SSLCertificateFile  /etc/ssl/certs/ssl-cert-snakeoil.pem
    SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key

    #   Server Certificate Chain:
    #   Point SSLCertificateChainFile at a file containing the
    #   concatenation of PEM encoded CA certificates which form the
    #   certificate chain for the server certificate. Alternatively
    #   the referenced file can be the same as SSLCertificateFile
    #   when the CA certificates are directly appended to the server
    #   certificate for convinience.
    #SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt

    #   Certificate Authority (CA):
    #   Set the CA certificate verification path where to find CA
    #   certificates for client authentication or alternatively one
    #   huge file containing all of them (file must be PEM encoded)
    #   Note: Inside SSLCACertificatePath you need hash symlinks
    #        to point to the certificate files. Use the provided
    #        Makefile to update the hash symlinks after changes.
    #SSLCACertificatePath /etc/ssl/certs/
    #SSLCACertificateFile /etc/apache2/ssl.crt/ca-bundle.crt

    #   Certificate Revocation Lists (CRL):
    #   Set the CA revocation path where to find CA CRLs for client
    #   authentication or alternatively one huge file containing all
    #   of them (file must be PEM encoded)
    #   Note: Inside SSLCARevocationPath you need hash symlinks
    #        to point to the certificate files. Use the provided
    #        Makefile to update the hash symlinks after changes.
    #SSLCARevocationPath /etc/apache2/ssl.crl/
    #SSLCARevocationFile /etc/apache2/ssl.crl/ca-bundle.crl

    #   Client Authentication (Type):
    #   Client certificate verification type and depth.  Types are
    #   none, optional, require and optional_no_ca.  Depth is a
    #   number which specifies how deeply to verify the certificate
    #   issuer chain before deciding the certificate is not valid.
    #SSLVerifyClient require
    #SSLVerifyDepth  10

    #   SSL Engine Options:
    #   Set various options for the SSL engine.
    #   o FakeBasicAuth:
    #    Translate the client X.509 into a Basic Authorisation.  This means that
    #    the standard Auth/DBMAuth methods can be used for access control.  The
    #    user name is the `one line' version of the client's X.509 certificate.
    #    Note that no password is obtained from the user. Every entry in the user
    #    file needs this password: `xxj31ZMTZzkVA'.
    #   o ExportCertData:
    #    This exports two additional environment variables: SSL_CLIENT_CERT and
    #    SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
    #    server (always existing) and the client (only existing when client
    #    authentication is used). This can be used to import the certificates
    #    into CGI scripts.
    #   o StdEnvVars:
    #    This exports the standard SSL/TLS related `SSL_*' environment variables.
    #    Per default this exportation is switched off for performance reasons,
    #    because the extraction step is an expensive operation and is usually
    #    useless for serving static content. So one usually enables the
    #    exportation for CGI and SSI requests only.
    #   o OptRenegotiate:
    #    This enables optimized SSL connection renegotiation handling when SSL
    #    directives are used in per-directory context.
    #SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
    <FilesMatch "\.(cgi|shtml|phtml|php)$">
            SSLOptions +StdEnvVars
    </FilesMatch>
    <Directory /usr/lib/cgi-bin>
            SSLOptions +StdEnvVars
    </Directory>

    #   SSL Protocol Adjustments:
    #   The safe and default but still SSL/TLS standard compliant shutdown
    #   approach is that mod_ssl sends the close notify alert but doesn't wait for
    #   the close notify alert from client. When you need a different shutdown
    #   approach you can use one of the following variables:
    #   o ssl-unclean-shutdown:
    #    This forces an unclean shutdown when the connection is closed, i.e. no
    #    SSL close notify alert is send or allowed to received.  This violates
    #    the SSL/TLS standard but is needed for some brain-dead browsers. Use
    #    this when you receive I/O errors because of the standard approach where
    #    mod_ssl sends the close notify alert.
    #   o ssl-accurate-shutdown:
    #    This forces an accurate shutdown when the connection is closed, i.e. a
    #    SSL close notify alert is send and mod_ssl waits for the close notify
    #    alert of the client. This is 100% SSL/TLS standard compliant, but in
    #    practice often causes hanging connections with brain-dead browsers. Use
    #    this only for browsers where you know that their SSL implementation
    #    works correctly.
    #   Notice: Most problems of broken clients are also related to the HTTP
    #   keep-alive facility, so you usually additionally want to disable
    #   keep-alive for those clients, too. Use variable "nokeepalive" for this.
    #   Similarly, one has to force some clients to use HTTP/1.0 to workaround
    #   their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
    #   "force-response-1.0" for this.
    BrowserMatch "MSIE [2-6]" \
            nokeepalive ssl-unclean-shutdown \
            downgrade-1.0 force-response-1.0
    # MSIE 7 and newer should be able to use keepalive
    BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown

</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

这是 000-default.conf。我不知道为什么除了这条线之外什么都没有显示。

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

如何让虚拟主机在访问时显示正确的目录？如果有任何区别，我将在 Ubuntu Server 14.04 LTS 上通过 Webmin 1.750 管理 Apache 服务器

我在某处读到需要为默认服务器指定服务器名称，否则它将捕获所有请求，因为它是列表中的第一个服务器。这是真的？如果是这样，我该怎么做？