During a
Big Data Extension cluster creation, you choose what the node's password will be,
either a specified one or a random generated one, them all nodes will be
created using the same password.
It’s not
unusual that sometimes you need to login directly on the nodes’ console through SSH to perform
some troubleshooting, run commands or scripts, but in order to execute this,
first you need to properly login with a username and password.
Well, if
you specified the password during creation it’s easy, but what about the random
password ?
The random
password is not shown on any GUI option. To identify the random password you
will need to open the node’s console through vSphere Web Client.
There’s it,
the random password will be shown on the hosts’s banner.
You might
have realized already that it’s not the most secure method since everybody with
a vSphere privilege could open the node’s console and check the password for your nodes.
Some
companies have restrict security policies which would not allow this behavior.
So how do
we change the password on all nodes of a cluster ?
- login to BDE Management Server CLI
-
run:
serengeti-ssh.sh Cluster_Name ‘echo
New_Password | sudo passwd serengeti –stdin’
