Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//etc/sysctl.d/10-link-restrictions.conf

 # These settings eliminate an entire class of security vulnerability:
# time-of-check-time-of-use cross-privilege attacks using guessable
# filenames (generally seen as "/tmp file race" vulnerabilities).
fs.protected_hardlinks = 1
fs.protected_symlinks = 1