ssh setup
SSH Authentication
Securely access a remote system without typing passwords
- You put your public key on the remote server
- You keep your private key on your machine
- When connecting, SSH uses cryptography to verify you have the private key
Common tools: ssh, ssh-keygen
Key formats: .pub (public), .pem (private)
Step 1: Generate SSH Key on Local Machine
Execute the following command
ssh-keygen -t rsa -b 4096 -f ~/.ssh/server-ssh
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server-ssh (private key) server-ssh.pub (public key)
Step 2: Copy Public Key to Remote Server
Append public key to ~/.ssh/authorized_keys in remote server
vim ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys
chmod 700 ~/.ssh
Step 3: SSH Login From Local Machine
Now, you should be logged in without entering your password