Executing ssh commands on many computers

mouring at etoh.eviladmin.org mouring at etoh.eviladmin.org
Tue Oct 9 00:31:39 EST 2001

Use PRNGd and a newer version of OpenSSH.  PRNGd is a long standing
entropy generation system which should help out in your problem.

- Ben

On Mon, 8 Oct 2001, [windows-1250] Dean Luka Domikuliæ wrote:

> We have two SP computers with 8 nodes each and
> ocasionaly we have to execute comands on all of them.
> We do that with ssh private and public keys without
> passphrase. I a loop we do
> ssh node* comand
> The problem is:
> After a few nodes ssh client waits for a long time
> and after that every new connection is slower.
> It looks to me like ssh client has used all the entropy
> for generating session keys and than has to wait for the new
> keys to be generated.
> I'm just guessing.
> OS is AIX 4.3.2 and openssh is 2.3 p1.
> Does any body know what could be the problem
> and how it can be solved?
> We tried executing comands from AIX and linux,
> and we get the same problem only on linux
> I can execute the command on more nodes before it
> starts to be slow.
> I tested with loop:
> while true
> do
> ssh node date
> done
> Any help apreciated.

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