> > That means is that you need to make sure that the users on the host and the > guest machine should have the same UID (usernumber) and GID(GroupNumber). > > The point is that you now have 2 "computers" that can access the same data. > If you set access to certain files using different usernames, but identical > (numeric) UID's, the "wrong" people could be able to access those files. > Other then what one would think based on the displayed user- and > groupnames. > It would also make troubleshooting trickier. > > If you can keep the used numbers in sync between both installations, then > every user/group permission means the same in both environments. > > mvg, Guus TY Guus for your answer. I think I understand the overall principle. The trick is I have no idea how setup all this stuff in a concrete manner. A basic example would help me.