Just want to check I'm not missing something.

watch --interval 0.5 cat /proc/sys/kernel/random/entropy_avail shows numbers between 120 and 180.

So I:
sudo aptitude install ekeyd-egd-linux
sudo iptables --append OUTPUT -p tcp --dport 8888 -d 212.13.194.102 -j ACCEPT
sudo ekeyd-egd-linux -H 212.13.194.102 -p 8888 -b 2 -r 10 -D /root/entropy

netstat shows the expected connection as established, yet watch --interval 0.5 cat /proc/sys/kernel/random/entropy_avail behaves in the same way.

I'm convinced I'm missing a step but can't see it, can any one else?




On 8 June 2010 08:26, Joseph Heenan <joseph@heenan.me.uk> wrote:
Andy Bennett wrote:
Hi,

If you're on IRC, or follow me/bitfolk on twitter or on Facebook
you're probably bored to tears hearing about this, but just in case
there's some of you who aren't..

I've been investigating the issue of lack of entropy in virtual
machines recently, and have gone into it in some detail in the
following two blog postings:

http://strugglers.net/~andy/blog/2010/06/06/adventures-in-entropy-part-1/

Thanks for this Andy!

I've been running
watch -n 0.25 cat /proc/sys/kernel/random/entropy_avail

...as recommended buy Hugo in the comments and my VPS fills up with entropy very quickly.

Unless I'm mistaken or there's some weird coincidence, running the above command on my VPS actually appears to generate extra entropy.


Here's a graph of my VM's entropy:

http://button.heenan.me.uk/~joseph/entropy-day.png

I'm guessing I'm one of the ones who could well benefit from hooking upto the new entropy key. (It's a standard debian stable system, 2.6.26-2-xen-686 kernel.)

Joseph


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