Hi all. My problem is to make customers authentication without any typing logins and passwords. First : I have AD on win2003 server (domain controller) (IP i.e. 192.168.167.254) Second: Another computer with OTRS installed (in the same network, but not in domain), (IP i.e. 192.168.167.200) Third: Customer's computer, which is in the same domain (IP i.e. 192.168.167.201) All computers are under Windows XP, except domain controller. I could establish customers' connection to OTRS database, typing domain username and password in customer.pl site. (So, LDAP authentication is working properly). But when I try to follow admin's manual to setup OTRS HTTPBasicAuth, I always get the same error: [Notice][Kernel::System::CustomerAuth::HTTPBasicAuth::Auth] User: No $ENV{REMOTE_USER} !(REMOTE_ADDR: 192.168.167.201). Is it possible to make such kind of connection to OTRS? I'd be very pleased, if someone could show me the working example of this task. Thanks. Dmitry Z.