Dear all members: I hava a question, send 0 byte to Client , Apache Server log 5 bytes in Access Log file, send 2 bytes to Client, Apache Server log 14 bytes in Access log file. Why???? My code is : ============================================= my $r = shift; $r->send_http_header; $r->print("ok"); # this is send 2 bytes, log 14bytes ============================================= my $r = shift; $r->send_http_header; $r->print(""); # this is send 0 byte,log 5bytes ============================================= please tell me why? Your firend, Wac