hello again friends i did now all following step by step http://deployingradius.com/documents/configuration/active_directory.html and when y type radiusd -X at the end of the output i see: /etc/openradius/raddb/users[1]: Parse error (check) for entry users: Unknown value ntlm_auth for attribute Auth-Type Errors reading /etc/openradius/raddb/users /etc/openradius/raddb/modules/files[7]: Instantiation failed for module "files" /etc/openradius/raddb/sites-enabled/inner-tunnel[111]: Failed to find module "files". /etc/openradius/raddb/sites-enabled/inner-tunnel[34]: Errors parsing authorize section.  } } Errors initializing modules thanks in advise , sorry for my insistence but who don't seek , will never going to get the truth.   Luis