Enable password less SSH between Linux servers

This video explain how to setup passwordless SSH between Linux servers.

[pjmclenon]

hello sir, just for testing purposes my software allows me to setup hosts on 1 server by using different hosts name and differnt ports and so what i mean is it would be as an example host0 on port 8000 and host1 on port 8001 and host2 on port8002 and host3 on port 8003 and so how do i insert the pub key to an auth key file on each host folder than are all on 1 server linux ununtu machine? or is it just done once on host0 machine in the home/user folder?
i am not understandung this and if there is no solution then since my software does run ssh on actual differnet srvers with dirferent IP then i will follw your vid but for now since its in my docs that i can use diffenrt ports and host names and use only 1 server machine, thats what i am trying to do becuz my software has to use ssh passwrdless to function;
Lisa

[peteallennh]

Everything that you did worked, but you didn’t explain anything about the file names that you used and changed. You also did not explain whether the account names must match and pre-exist on all servers, because they are not root accounts. I would suggest being a little more complete in the explanation and moving a bit slower through your steps. But it’s an excellent start. Nice job.

[aayushigoyal]

Thank you so much. This video is really helpful

[nawazshaikh]

If we have 50 servers in our cluster, then how will we configure passwordless to-and-fro login for these many servers?

[tusharsonawane]

ssh-copy-id node2 it didn't ask me any password and it say Permission denied

[faradaymahe]

i forgot the server password how to get that

[ffgaming-fecx]

How to upgrade centos 6 to centos 7 without data loss

[kmk]

what are edge node and how to configure edge nodes

[pjmclenon]

hello you totally lost me at aroudn 2.35 minutes totally screwd it up sorry but you did;
Lisa