提示: [Wed Jun 18 04:58:38 2008] [warn] _default_ VirtualHost overlap on port 80, the first has precedence   解决: 确保有下面这行 NameVirtualHost *:80

<virtualhost *:80>
      ServerAdmin webmaster@somedomain.com
      DocumentRoot /srv/www/somedomain
      ServerName www.somedomain.com
      ServerAlias somedomain.com
   </virtualhost>
   <virtualhost *:80>
      ServerAdmin webmaster@elsedomain.com
      DocumentRoot /srv/www/elsedomain
      ServerName www.elsedomain.com
      ServerAlias elsedomain.com
   </virtualhost>
   <virtualhost *:80>
      ServerAdmin webmaster@otherdomain.com
      DocumentRoot /srv/www/otherdomain
      ServerName www.otherdomain.com
      ServerAlias otherdomain.com
   </virtualhost>

After this, I had to also put new statements into /etc/hosts :

127.0.0.1     www.somedomain.com
   127.0.0.1     somedomain.com
   127.0.0.1     www.elsedomain.com
   127.0.0.1     elsedomain.com
   127.0.0.1     www.otherdomain.com
   127.0.0.1     otherdomain.com