Using xattrs or Extended Attributes on Linux

Linux supports extended attributes (xattr) on most file systems. Learn how they work and allow security features like access control lists and more.


An introduction into extended attributes (xattrs) on Linux

Securing mount points on Linux

Since data is stored on file systems, appropriate measures should be taken to protect it. By securing mount points on Linux systems, we can improve the security of the system and data.


Mount points are defined in /etc/fstab. They link a particular disk pointer to the related device (disk, partition or virtual device). By default the mount options are not focused on security, which gives us a room to further improve hardening of the system. This hardening is especially important considering our most precious data is stored here. Via mount options we can apply additional security controls to protect our data. Mount point example Let’s have a look at our /etc/fstab file.