Knowledge Base - SSH

How to Setup Passwordless SSH Login — concise version

Setup SSH Passwordless Login

Create ~/.ssh/config entry for remote machine.
Check for existing SSH key pair.
```
ls -al ~/.ssh/id_*.pub
```
If necessary, generate a new SSH key pair.
```
ssh-keygen -t rsa -b 4096
```
Press Enter to accept the default file location and file name:
```
Enter file in which to save the key (/home/yourusername/.ssh/id_rsa):
```
Press Enter to leave passphrase empty:
```
Enter passphrase (empty for no passphrase):
```

Copy the public key

ssh-copy-id remote_username@server_ip_address

or

ssh-copy-id host_alias_as_it_appears_in_config

You will be prompted to enter the remote_username password.

Login to your server using SSH keys

After completing the steps above you should be able log in to the remote server without being prompted for a password.

To test it just try to login to your server via SSH:
```
ssh remote_username@server_ip_address
```