Greetings all, I've been a long term user of the samba, ntlm, winbind, and active directory as the backend authentication mechanism for a squid proxy server. Recently, a challenge has presented itself and I am still seeking an answer. Currently, my users login to the PCs, VPN connection, etc with just a username. Ie: jgauthier I would like to have them login to these services using any number of their assigned UPNs. For instance, my email address is a valid UPN in my AD. However, using this fails authentication. I did some digging and found that wbinfo -n cannot look up the name: wbinfo -n jgauthier at validupn.com Could not lookup name jgauthier at validupn.com The server logs inform: [2011/11/28 14:11:21.132945, 3] winbindd/winbindd_lookupname.c:69(winbindd_lookupname_send) lookupname validupn.com\jgauthier [2011/11/28 14:11:21.133057, 5] winbindd/winbindd_lookupname.c:105(winbindd_lookupname_recv) Could not convert sid S-0-0: NT_STATUS_NONE_MAPPED If appears using the AD domain name works just fine. However, I do not want to use the AD domain name. It is my goal to use one of our *many* possible secondary UPNs. I'd appreciate any pointers in achieving this goal. Thanks, Jason