ldapv3.pdf 7947KB Apr 17 2013 11:30:42 AM - mirror omadata

uids,
gids, and rids
UNIX operating systems and its derivatives / clones uniquely
identify a user via an integer uid (usually 16 bit) and groups via an
integer gid (usually 16 bit). These are independent name spaces.
Current Microsoft operating systems uniquely identify user and
groups via a value known as a RID, an integer value typically
expressed in hexidecimal. Users and Groups exists in a single name
space.
Samba maps UNIX uids and gids to RIDs using the following
formulae: rid = 2(uid) + 1000 rid = 2(gid) + 1001
It is advisable to keep the UN*X uid/gid name space unified.
I.E. Don't allow rids and gids to overlap.