If you have Apache ModSecurity installed and try to edit your blog, you mayget this error:

“Method Not Implemented  POST to /wp-admin/post.php not
supported.”

Your apache error log, e.g., /var/log/httpd/white_board_ssl_error_log,
may have a line like this:

ModSecurity: Access denied with code 404 (phase 4).

To fix it, open your http virtual host file add this line:

e.g.,