Harden Linux system services by restricting systemd units with the SecureBits setting, which enables special behavior related to Linux capabilities.
Sudo
Articles about Sudo
The background color of run0, part of systemd, can be changed with the '--background' option. This way another color can be configured instead of its default.
PCI DSS requires logging of administrative actions, including commands executed by the root user or using sudo. Learn how to set up accounting and auditing.
The root account is a special account for Unix based systems. Protecting it with the right measures, secures the system and decreases system compromises.