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entropy going yellow

4 messages in this thread

list David Hay Currie · Tue, 16 Feb 2010 14:03:45 -0500 ·
The entropy check on my xymon server keeps going yellow saying that the
kernel entropy pool is low. However I am not completely sure what it is
(I did look for info online) or how to fix the check so it does not go
yellow (increase the entropy? Clear it ?)

If anyone can give me a hand I would appreciate it.
list David Hay Currie · Thu, 18 Feb 2010 11:12:11 -0500 ·
Anyone has any idea on this??
quoted from David Hay Currie

 
From: David Hay Currie [mailto:user-ab244b10c769@xymon.invalid] 
Sent: Tuesday, February 16, 2010 2:04 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: [hobbit] entropy going yellow

 
The entropy check on my xymon server keeps going yellow saying that the
kernel entropy pool is low. However I am not completely sure what it is
(I did look for info online) or how to fix the check so it does not go
yellow (increase the entropy? Clear it ?)

If anyone can give me a hand I would appreciate it.
list Pete · Tue, 23 Feb 2010 00:04:28 +0100 ·
Hello David,
I use to have the same problem on Debian (lenny).

I solved it; take a look to :

http://www.chrissearle.org/blog/technical/increase_entropy_26_kernel_linux_box

In case rng-tools might not work, check for "randomsound".

Ragards,
Pete
quoted from David Hay Currie


On 18/02/2010 17:12, David Hay Currie wrote:
Anyone has any idea on this??

 
*From:* David Hay Currie [mailto:user-ab244b10c769@xymon.invalid]
*Sent:* Tuesday, February 16, 2010 2:04 PM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* [hobbit] entropy going yellow

 
The entropy check on my xymon server keeps going yellow saying that the
kernel entropy pool is low. However I am not completely sure what it is
(I did look for info online) or how to fix the check so it does not go
yellow (increase the entropy? Clear it ?)

If anyone can give me a hand I would appreciate it.

 
list David Hay Currie · Tue, 23 Feb 2010 12:46:42 -0500 ·
Thanks. I used the info that you gave me but I used a more debian/Ubuntu
solution since I like to keep everything in the apt-get.
From what I was readying, there are also other programs that can make
random data available, so I installed rng-tool, but I also installed
randomsound which is available in the apt-get repository and my entropy
went from 160 to 1800 in just that second after the install.
I was watching the entropy using 
watch -n 1 cat /proc/sys/kernel/random/entropy_avail
to get realtime reads.
Now my xymon servers read green on the entropy :)

David Hay Currie
IT Manager
Leisure Fitness
XXX Executive Dr. Suite XX
Phone: XXX-XXX-XXXX
Fax: XXX-XXX-XXXX (atte: David Hay Currie)
quoted from Pete


-----Original Message-----
From: Pete [mailto:user-ae97671779d2@xymon.invalid] 
Sent: Monday, February 22, 2010 6:04 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] entropy going yellow

Hello David,
I use to have the same problem on Debian (lenny).

I solved it; take a look to :

http://www.chrissearle.org/blog/technical/increase_entropy_26_kernel_lin
ux_box
quoted from Pete

In case rng-tools might not work, check for "randomsound".

Ragards,
Pete


On 18/02/2010 17:12, David Hay Currie wrote:
Anyone has any idea on this??

 
*From:* David Hay Currie [mailto:user-ab244b10c769@xymon.invalid]
*Sent:* Tuesday, February 16, 2010 2:04 PM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* [hobbit] entropy going yellow

 
The entropy check on my xymon server keeps going yellow saying that
the
kernel entropy pool is low. However I am not completely sure what it
is
(I did look for info online) or how to fix the check so it does not go
yellow (increase the entropy? Clear it ?)

If anyone can give me a hand I would appreciate it.