On environments with limited initial entropy (such as VMs) just use haveged [1]<p>[1] - <a href="https:&#x2F;&#x2F;wiki.archlinux.org&#x2F;index.php&#x2F;Haveged" rel="nofollow">https:&#x2F;&#x2F;wiki.archlinux.org&#x2F;index.php&#x2F;Haveged</a>