Hello, I just installed FreeRadius 3.0.12 on Stretch in order to provide a Google Authenticator gateway (https://www.techdrabble.com/citrix/14-2factor-with-google-authenticator-and-... <https://www.techdrabble.com/citrix/14-2factor-with-google-authenticator-and-netscaler>), but I'm unable to start the FreeRadius service, here is the debug log : Mon Apr 23 14:23:59 2018 : Debug: # Loading session {...} Mon Apr 23 14:23:59 2018 : Debug: radutmp Mon Apr 23 14:23:59 2018 : Debug: # Loading post-proxy {...} Mon Apr 23 14:23:59 2018 : Debug: eap Mon Apr 23 14:23:59 2018 : Debug: # Loading post-auth {...} Mon Apr 23 14:23:59 2018 : Debug: } # server inner-tunnel Mon Apr 23 14:23:59 2018 : Debug: server default { # from file /etc/freeradius/3.0/sites-enabled/default Mon Apr 23 14:23:59 2018 : Debug: # Loading authenticate {...} Mon Apr 23 14:23:59 2018 : Debug: mschap Mon Apr 23 14:23:59 2018 : Debug: digest Mon Apr 23 14:23:59 2018 : Error: /etc/freeradius/3.0/sites-enabled/default[489]: Failed to find "pam" as a module or policy. Mon Apr 23 14:23:59 2018 : Error: /etc/freeradius/3.0/sites-enabled/default[489]: Please verify that the configuration exists in /etc/freeradius/3.0$ Mon Apr 23 14:23:59 2018 : Error: /etc/freeradius/3.0/sites-enabled/default[452]: Errors parsing authenticate section. Of course there is no "/etc/freeradius/3.0/mods-enabled/pam" Someone had the same problem with Ubuntu 17.10 and FreeRadius 3 before reverting to an older version (https://enterpriseadmins.org/blog/virtualization/build-your-own-two-factor-a... <https://enterpriseadmins.org/blog/virtualization/build-your-own-two-factor-authentication-server/>) Regards