Creating user with ssh access
14th January, 2017
There are times when you are an admin of a machine and would like to give ssh access to another users. To do so, one can follow the following steps in Linux (Debian/Ubuntu).
# Add user with no password prompt #(here its new_user, so replace new_user with your new username) $sudo adduser new_user --disabled-password # Create .ssh directory $cd /home/new_user $sudo mkdir .ssh # Copy paste the public ssh key here $sudo vim .ssh/authorized_keys # Set permissions $sudo chown -R new_user:new_user /home/new_user/ $sudo chown root:root /home/new_user $sudo chmod 700 /home/new_user/.ssh $sudo chmod 600 /home/new_user/.ssh/authorized_keys # Other command lines: # To restart ssh $sudo service ssh restart # To delete user $sudo deluser new_user # To delete user and its home directory togther in one step. $sudo deluser --remove-home new_user # Grant sudo access to user $sudo usermod -aG sudo new_user # Get list of sudo users $grep -Po '^sudo.+:\K.*$' /etc/group # To set the permissions of the directories right chmod go-w ~/ chown -R $USER ~/.ssh chmod 0700 ~/.ssh chmod 0600 ~/.ssh/authorized_keys