The Linux umask setting plays a big role in determining the permissions that are assigned to files that you create. But what’s behind this variable, and how do the numbers relate to settings like rwxr ...

Halloween has come and gone. In fact, so has Thanksgiving. But some masks are always appropriate – not because we’re trying to inspire people to give us candy, but because it’s just too easy to end up ...

I have managed lots of OS X AFP servers before, (Xserves etc) but never played much with doing desktop file sharing with AFP. I have a situation where I need to share out a public folder via AFP on a ...

I'm trying to make it so that every user in the "devel" group on a shared development box can read and write each other's files and so that any new user who's made a member of that group will ...

Recall also that we set the group permissions on this directory to r-x, that is, group-readable and group-executable, so that our fellow members of the drummers group could enter this directory and ...

I once locked myself out of my files with a simple mistyped command. This was the first time I rendered my Linux installation unusable, and it was because I didn’t understand permissions. While I ...