Creating SSH Keys (Terminal)

To log in into other Aspera servers with public key authentication, you can also create key-pairs in command line. Follow the instructions below.

Create .ssh folder in home directory
Create a ".ssh" folder in your user account's home directory if it doesn't exist:
```
> md <path-to-user-home-dir>.ssh
```
Navigate into the .ssh folder and continue:
```
> cd <path-to-user-home-dir>.ssh
```
Use ssh-keygen to generate SSH key
Execute the following command in the ".ssh" folder. The program will prompt you the key-pair's file name, hit enter to use the default name id_rsa. For a passphrase, you can either enter a password, or press return twice to leave it blank:
```
> ssh-keygen -t rsa
```
Retrieve the public key file
When created, the key-pair can be found in your home directory's ".ssh" folder (Assuming you generated the key with default name id_rsa):
```
(user's home directory)\id_rsa.pub
```
Provide the public key file (e.g. id_rsa.pub) to your server administrator, so that it can be set up for your server connection.
Use the key in an async session.
Usage within an async session (option -i keyfile, instead of -w password) is as follows:
```
>async -N TestBackup -d c:/tmp/dir -r user@server:d:/tmp/dir -i PATH_TO_THE_PRIVATE_KEY_FILE
```
IMPORTANT NOTE: Your private key and public key must be located in the same directory.

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