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SSH

ssh-keygen -t rsa

ssh-keygen -t ed25519 -C "ubuntu@domain"

SSH using password

sshpass -p password ssh -o StrictHostKeyChecking=no ubuntu@<server> /bin/bash -ic "deploy.sh"

SSH into server without using password

  • Create SSH keypair 'ssh-keygen -t rsa'
  • touch .ssh/authorized_keys -> copy public key here
  • SSH using private key ssh -i id_rsa username@server_ip

Specify a port

ssh -i your_private_key_file -p 22222 ubuntu@192.168.000.000

echo to a .pem

cat your_private_key_file | base64
echo "BASE64_ENCODED_STRING" | base64 --decode > your_private_key_file
chmod 400 your_private_key_file

debug ssh

ssh -i your_private_key_file -p 22222 -vvv ubuntu@192.168.000.000