SSL and LE should not have any problem, as I can view all sites in HTTPS and see different contents as expected. There is only one exception. the server host domain atlmaster.angelright.com can be accessed in both ways, but without redirection whatsoever. See... http://atlmaster.angelright.com https://atlmaster.angelright.com So, like what Till said, I should use ISPconfig to do it rather than using the vhost master? Right now, I have set all sites like this... What should I do then?