Hi all, below is my lab environment, I want to using *CHILD 's users for authentication. I * tryed create Forest1 and Forest2 2-way-trust, and tested samba3 and samba4 just work fine. *but if I change 2-way-trust to 1-way-trust. the winbind3&4 would lost the Forest1's child domain trust. does winbind support forest one-way-trust? or I missed some configuration? * *also I search a lot of same question about this but do not seen an official answer. * Any help would be gratefully appreciated. Thanks! work fine: +---------------+ +---------------+ | | | | | Forest 1 | +--------------> | Forest 2 | | | | | | | <--------------+ | | +-------+-------+ 2-way +-------+-------+ ^ Trust ^ | | AD-JOIN +-------+-------+ +-----+-----------+| | | node1 | node2 | | CHILD | | WINBIND3|winbind4| | | | | +---------------+ +------------------+ <#work-bad>work bad: +---------------+ +---------------+ | | | | | Forest 1 | +--------------> | Forest 2 | | | | | | | | | +-------+-------+ one-way +-------+-------+ ^ Trust ^ | | AD-JOIN +-------+-------+ +-----+-----------+| | | node1 | node2 | | CHILD | | WINBIND3|winbind4| | | | | +---------------+ +------------------+