Comments on: Check available entropy in Linux

By: Major Hayden

Major Hayden — Sat, 06 Aug 2011 04:50:07 +0000

Heywouter: That works pretty well, but some folks claim that /dev/urandom doesn't give adequately random data:

Heywouter — Fri, 05 Aug 2011 08:43:47 +0000

I had the same problem on headless VirtualBox servers, the guest OS is Ubuntu. the solution:
How to setup enrtopy

1.sudo apt-get -y install rng-tools

2.Then, edit the file /etc/default/rng-tools

nano /etc/default/rng-tools

and this to the bottom of the file

HRNGDEVICE=/dev/urandom

3.sudo /etc/init.d/rng-tools restart

Hope this help a bit

Entropy .. | itech9 — Sat, 23 Jul 2011 00:50:06 +0000

goll — Fri, 17 Dec 2010 17:14:10 +0000

Thanks for the great post.

On CentOS:
yum install rng-utils

Chau!