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  • Can you expand on that for me possibility? Is this just something fundamental with RedHat / CentOS? I'm more of a Windows guy and in NTFS I can just assign rights to a subfolder while blocking the parent directory. Sure the user cannot traverse the tree but if they explicitly access the desired directory they get in. Commented Dec 21, 2017 at 16:31
  • This is a fundamental way that *NIX filesystems and *NIX filesystem permissions work, not specific to Red Hat / CentOS. The (very large) caveat to that is that once you bring in ACLs, everything changes. Commented Dec 21, 2017 at 16:32
  • So its not just the parent directory then. The user needs to traverse the whole directory tree from /home onwards? Commented Dec 21, 2017 at 16:34
  • @Matt the whole directory tree from / onwards, actually. So you need +x on /, /home, /home/alert, and /home/alert/NagiosAlerts Commented Dec 21, 2017 at 16:36
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    As a Windows guy, think of this as the situation that exists on Windows for accounts that do not have the "bypass traverse checking" privilege. This is, in fact, the same as on the operating system that you are familiar with, except that on that operating system users have as a matter of course a privilege that users on Linux operating systems and Unices do not have. Commented Dec 21, 2017 at 17:18