I am setting up a new Webmin/usermin instance and am running into an issue with getting PAM authentication working.

 

I have installed the Authen::PAM perl module, and have configured Webmin to use PAM authenticatyion when possible, but when I try to log in with anything other than the initial admin user, I get a 401 response code.

 

I don’t see anything other than the 401 in any logs & am not sure how to troubleshoot this one. Any ideas?