root@ubuntu606:/etc/apache2# /etc/init.d/apache2 reload
 * Reloading apache 2.0 configuration...                                                               
Syntax error on line 6 of /etc/apache2/httpd.conf:
Can't locate API module structure `mod_rewrite' in file /usr/lib/apache2/modules/mod_rewrite.so: /usr/lib/apache2/modules/mod_rewrite.so: undefined symbol: mod_rewrite