Permalink problems can be a very annoying. The following post presents a guideline to fix the problem in a systematical way. Specifically, the post refers to the problem that pages, sites and posts of a self-hosted WordPress blog become inaccessible once one changes the permalink settings. Generally, there are various sources that can cause the same problem. Below you find a checklist that one can go through step by step to find the error.
- .htaccess must be present in the same folder as index.php
- .htaccess be writeable
- apache2.conf must allow overwrite
- database problems