Hi, "net rpc vampire" creates a new group in the LDAP directory for each "Alias" found during the SAM migration. But in the directory, for a group alias I cannot find the referecence to the real group For example with net rpc samdump : Alias 'Account Operators' desc='Members can administer domain user and group accounts' rid=548 Alias rid 548: S-1-5-21-106116734-1480922733-1264475144-2225 and for this entry in LDAP I found : dn: cn=Account Operators,ou=Groups,o=xxx,c=xx objectClass: posixGroup objectClass: sambaGroupMapping cn: Account Operators gidNumber: 1550 creatorsName: cn=admin,o=xxx,c=xx createTimestamp: 20030602171844Z sambaSID: S-1-5-32-548 sambaGroupType: 5 displayName: Account Operators description: Members can administer domain user and group accounts modifiersName: cn=admin,o=xxx,c=xx modifyTimestamp: 20030602171844Z but there isn't any reference to the real group :S-1-5-21-106116734-1480922733-1264475144-2225 Thank you for your help. Regards, Rapha?l