When a new platform feature set Joomla SEO，Open SEO no problem，But after turning URL Rewriting，Each link will not show up。At first start has been for .htaccess，Official documents are mostly dwell in this file，After still could not work out the reasons，Had to give。
After separated for a while，I went to the official looked at the file，Some places have noticed a mention at the beginning of Apache have to pay attention http.conf，For htdocs directory where the .htaccess overrides function to open，Otherwise, there will be mistakes。
The default is AllowOverride None，None can be changed to All
- Enabling Search Engine Friendly (SEF) URLs – Joomla! Documentation
