Hi All: My name is Charles and I need to "Configure my FreeRadius to use ntlm_auth" to authenticate NT users. Actually, I am getting to do this for only one NT group, but I need to do this for more NT groups. My configuration in "radius.conf" for ntlm_auth for one NT group is: exec win_domain { wait = yes input_pairs = request output_pairs = reply program = "/usr/local/bin/ntlm_auth --request-nt-key --domain=COPEL --username=%{User-Name:-None} --password=%{User-Password} --require-membership-of=COPEL\\Group1" } My environment is: FreeBSD 6.2 + Samba 3.0.26a + freeradius 1.1.7 How can I do this configuration for more than one NT group ? Any idea ? Thanks, Charles.