I think Jiří found the source of the problem, but it is a mod_ssl bug after all. Reassigning to apache2.
This would be https://issues.apache.org/bugzilla/show_bug.cgi?id=45444 ** Bug watch added: Apache Software Foundation Bugzilla #45444 http://issues.apache.org/bugzilla/show_bug.cgi?id=45444 ** Package changed: eglibc (Ubuntu) => apache2 (Ubuntu) -- client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23) https://bugs.launchpad.net/bugs/589611 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs