The Hotel Hero

Notes by a Sysadmin

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SSH Key exchange

April 9, 2021 | Stack

If you have never generated a key on your system, or if you want a separate key. Do the following:


And following the instructions. Just press enter all way thru, if you do this for the first time. But, you can choose to make another name for the key (other than the default).

Copy your public identity to the server, with ssh-copy-id command:

ssh-copy-id ubuntu@ (if default)
# if you made a special identity/name, point to the identity
ssh-copy-id -i ~/.ssh/mykey ubuntu@

enter your password once, to confirm to the server that you have legitimate access. And now login again, to se if every thing worked out as it should (no password confirmation)

ssh ubuntu@


I'm a Sysadmin, network manager and cyber security entusiast. The main purpose of this public "notebook" is for referencing repetitive tasks, but it might as well come in handy to others. Windows can not be supported! But all other OS compliant with the POSIX-standard can (with minor adjustments) apply the configs on the site. It is Mac OSX, RHEL and all the Fedora based distros and Debian based (several 100's of OS's), all the BSD distros, Solaris, AIX and HP-UX.