Installation handbook or Hardening doc can mention "mount --bind /tmp /tmp" as the cheapest way of preventing hardlinking from /tmp if it isn't a separate filesystem already. I use mount --bind /tmp /tmp mount --bind /var/tmp /var/tmp and in /etc/fstab : /tmp /tmp none bind /var/tmp /var/tmp none bind Reproducible: Always Steps to Reproduce:
No real need for this, not for the vast majority of users.