Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor)

Stop getting blocked by directories you own but cant enter

🧩 The Challenge

Everyone has run into the situation where you chmod 777 a directory, yet you still get a permission denied error when trying to list the files inside. It is maddening because the bits look right, but the kernel is still blocking your access.

💡 The Fix

You probably forgot that the execute bit is required on the directory itself just to traverse into it, regardless of what the file permissions are. Fix it by ensuring the parent path has the proper execute permissions for your user.

chmod u+x /path/to/directory

⚙️ Why It Works

Directories in Linux are really just special files that store a list of filenames and their associated inodes. You need that x bit to perform lookups against that list, or the filesystem driver effectively treats the folder as a wall you can’t walk through.

🚀 Pro-Tip: If you need to set this recursively for subdirectories but not the files themselves, use chmod u+X (capital X) instead of a regular x.

Linux Tips & Tricks | © ngelinux.com | 11/13/2026