I am trying to practice Kubernetes installation and configuration on a Ubuntu multinode environment.
In logging into node01 , i see the /etc/password file is not updated, so as per the instruction Even ssh node02 didn’t work. So i just took a guess and based on node01 IP, i tried to connect to node02. But the password mentioned in the instruction( caleston123) didnt work for either user bob or root user. I am still stuck here. at node01 still with only control plane configured.
I’m guessing you mean the Ubuntu multi node playground, right?
There’s nothing I can see wrong with SSH:
bob@node01 ~ ➜ ssh node02
Welcome to Ubuntu 20.04.3 LTS (GNU/Linux 6.8.0-124-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
This system has been minimized by removing packages and content that are
not required on a system that users do not log into.
To restore this content, you can run the 'unminimize' command.
bob@node02 ~ ➜ logout
Connection to node02 closed.
bob@node01 ~ ➜ ssh node03
Welcome to Ubuntu 20.04.3 LTS (GNU/Linux 6.8.0-124-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
This system has been minimized by removing packages and content that are
not required on a system that users do not log into.
To restore this content, you can run the 'unminimize' command.
bob@node03 ~ ➜ logout
Connection to node03 closed.
bob@node01 ~ ➜
What you should not do is try to ssh on any direction other than from node01
bob@node02 ~ ➜ ssh node01
bob@node02 ~ ➜ ssh node03
See also this.