毛病又犯了

drupal
Dreamhost是可以一键安装的，非要自己弄——
1.installer无法写入数据库，手工配置（via）
2.clean-urls

Your system configuration does not currently support this feature. The handbook page on Clean URLs has additional troubleshooting information.

<ifmodule mod_rewrite.c>

   RewriteEngine on

   RewriteBase /

   RewriteCond %{REQUEST_FILENAME} !-f

   RewriteCond %{REQUEST_FILENAME} !-d

   RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

</ifmodule>

http://drupal.org/node/15365 + http://wiki.dreamhost.com/Mod_rewrite
3.http://drupal.org/project/captcha
挺无聊的。