SSH Service Security¶
SSH Login With RSA Keys¶
Copy Public Key to The Server¶
ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]
Or Do It Manually :
ssh to the host (do not close this connection)
mkdir -p ~/.ssh && touch .ssh/authorized_keys
copy your public key usually located at ~/.ssh/id_rsa.pub
echo PUCLICK_Key_STRING >> ~/.ssh/authorized_keys
Configure sshd Service¶
edit /etc/ssh/sshd_config
change:
#PasswordAuthentication yes
to
PasswordAuthentication no
save&exit
restart ssh service:
sudo systemctl restart ssh
Open New SSH Season and Test RSA Login
Optional: change ssh port¶
edit /etc/ssh/sshd_config
change the port to a desired one
port 1337
save&exit
restart ssh service:
sudo systemctl restart ssh
Add Privet id_rsa key to Server¶
copy the id_rsa key to ~/.ssh folder
cd ~/.ssh
sudo ssh-agent bash
ssh-add id_rsa
Open New SSH Season and Test RSA Login¶
ssh [email protected] -p <port>
example:
ssh [email protected] -p 1337