You have no access to the client, but you can trace in the server logs the UserAgent field as sent by the clients.
-- 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 Server Team, which is subscribed to apache2 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
