Remote machine Archives - scmGalaxy https://www.scmgalaxy.com/tutorials/tag/remote-machine/ A Platform for Software Engineers Sat, 27 Feb 2021 09:50:30 +0000 en-US hourly 1 https://wordpress.org/?v=7.1 Steps to Perform SSH Login Without Password Using ssh-keygen and ssh-copy-id https://www.scmgalaxy.com/tutorials/steps-to-perform-ssh-login-without-password-using-ssh-keygen-and-ssh-copy-id/ https://www.scmgalaxy.com/tutorials/steps-to-perform-ssh-login-without-password-using-ssh-keygen-and-ssh-copy-id/#comments Wed, 14 Oct 2015 11:10:37 +0000 http://www.scmgalaxy.com/tutorials/2015/10/14/steps-to-perform-ssh-login-without-password-using-ssh-keygen-and-ssh-copy-id/ Steps to Perform SSH Login Without Password Using ssh-keygen and ssh-copy-id Step 1: Generate the keys > ssh-keygen or > […]

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]]> SSH Login Without Password
Steps to Perform SSH Login Without Password Using ssh-keygen and ssh-copy-id
Step 1: Generate the keys
> ssh-keygen
or
> ssh-keygen -t rsa
Step 2: Copy the public key to remote machine
> ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host
or
> ssh-copy-id -i ~/.ssh/id_rsa.pub user@hostname.example.com
Alternatively, you can paste in the keys using SSH:
cat ~/.ssh/id_rsa.pub | ssh user@123.45.56.78 “mkdir -p ~/.ssh && cat >>  ~/.ssh/authorized_keys”
Step 3: Login to remote machine
> ssh remote-host
If you have loaded keys to the ssh-agent using the ssh-add, then ssh-copy-id will get the keys from the ssh-agent to copy to the remote-host. i.e, it copies the keys provided by ssh-add -L command to the remote-host, when you don’t pass option -i to the ssh-copy-id.
> ssh-add
> ssh-add /Users/rajesh.kumar/.ssh/id_rsa
Step 4: Optional Step Four—Disable the Password for Root Login
> sudo nano /etc/ssh/sshd_config
Put the changes into effect:
> reload ssh
Within that file, find the line that includes PermitRootLogin and modify it to ensure that users can only connect with their SSH key:
> PermitRootLogin without-password
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