Install on 1&1 Servers not possible

[Connie]

a good test is testing step by step

1) what is your actual PHP-version?

2) take off mod_rewrite

if it is working without mod_rewrite, you have to check this point:

3) is "landing_page_mki" a subdirectory of your server root? If not, you have to edit the ReWriteBase in .htaccess

Code:

# Usually it RewriteBase is just '/', but
# replace it with your subdirectory path
RewriteBase /