winbind separator (G)
This parameter allows an admin to define the character
used when listing a username of the form of DOMAIN
\user. This parameter
is only applicable when using the pam_winbind.so
and nss_winbind.so modules for UNIX services.
Please note that setting this parameter to + causes problems
with group membership at least on glibc systems, as the character +
is used as a special character for NIS in /etc/group.
Default: winbind separator = '\'
Example: winbind separator = +