On 05/26/2017 08:35 PM, Leon Fauster wrote: >> Am 27.05.2017 um 01:09 schrieb Robert Moskowitz <rgm at htt-consult.com>: >> >> I am use to low random entropy on my arm boards, not an intel. >> >> On my Lenovo x120e, >> >> cat /proc/sys/kernel/random/entropy_avail >> >> reports 3190 bits of entropy. >> >> On my armv7 with Centos7 I would get 130 unless I installed rng-tools and then I get ~1300. SSH into one and it drops back to 30! for a few minutes. Sigh. >> >> Anyway on my new Zotac nano ad12 with an AMD E-1800 duo core, I am seeing 180. >> >> I installed rng-tools and no change. Does anyone here know how to improve the random entropy? > > http://issihosts.com/haveged/ > > EPEL: yum install haveged WOW!!! installed, enabled, and started. Entropy jumped from ~130 bits to ~2000 bits thanks Note to anyone running a web server, or creating certs. You need entropy. Without it your keys are weak and attackable. Probably even known already.