I'm wondering if any of the Mac experts here would know why there are a handful of folders under the /var folder that are marked off in red as being off limits (see below). I'm of course the machine owner and feel I should have rights to everything. (I may have taken the Macbook Pro into work one day and let them install remote software. Would that be the source of these marked folders?) I know I could probably change ownership if I wanted, with something like sudo chown or sudo chmod to make the folders open to all. However, I'm just trying to learn and understand the Mac environment. (I really need an SSH connection to run Drush so I can manage my Drupal site.) When I first bought my Mac used several years ago, I knew nothing about how to set up users. I think for several years my identity was simply "MacbookPro". Now I need to straighten that out. I eventually created another user name but it didn't have a folder in the Users folder until I made one today (so I can have a place to store new private SSH keys, for example). Also, is it normal to have a usr folder right below the User folder? The usr folder looks more like a system folder, while the Users folder looks like it holds normal users. Thanks to anyone who can shed some light.