Hi All I have Samba server 3.4.3.0 from pware which is integrated to AD users. I can list down the user from wbinfo e.g foo:/opt/samba/var>wbinfo -n USER1 S-1-5-21-2072526652-XXXXXX-945835055-315051 User (1) foo:/opt/samba/var>wbinfo -s S-1-5-21-2072526652-XXXXXX-945835055-315051 DOMAIN1\USER1 1 But when I check the mapping into the winbindd_idmap.tdb, I can't see the mapping there. picchu:/opt/samba/var/locks>tdbdump winbindd_idmap.tdb|grep 315051 which results nothing Now, if I create the wbinfo --set-uid-mapping=UID,SID the samba works OK, means that the SID to UID mapping is not working.. I can see many error in the log file -- Fatal Error: GID range full!! (max: 1999999) Fatal Error: UID range full!! (max: 999999) I'm quite sure we don't have that many user which might fill such a large range for UID and GID we have provided. Can anyone let me know how I can get this mapping corrected? Thanks in advance Yash