SSH Configure

(Mac and Linux Only)

If you never used SSH before this is a helpful example.

Or if you don't know if you have SSH installed on your sistem Mac Linux

In order to login to talon you will have to use SSH command on your personal computer's temrinal:

$ ssh [email protected]

Then it will ask for you password.

To make things easier you cna have it save the password and even create a shortcut so you can speed things up:

Make sure you are in your home directory:

$ cd ~

Check if you have a folder names .ssh

$ ls -a

If you don't you have to create one:

$ mkdir .ssh

Now you need to create a file named config. Use Nano or Vim or any other editor you are comfortable with:

$ vim ~/.ssh/config

If, for example, you want to create a shortcut to ssh on Talon3, your config file should look like:

Host t3                                             
  HostName talon3.hpc.unt.edu                      
  User euid123
  Port 22

Where t3 (it can be any word you want) is the shortcut you will use instead of typing:

$ ssh [email protected]

You will type:

$ ssh t3

Now you have a shortcut, but you will still need to enter your password every time.

In order to save your passwords you will have to create a keygen file:

$  ssh-keygen

When prompted with this:

Enter file in which to save the key (/home/your_user/.ssh/id_rsa):

Just press Enter to save the id_ras in the path. Then you will be prompted with:

Enter passphrase (empty for no passphrase):

Type Enter again if you don't want to type any password when ssh

Enter same passphrase again:

Hit Enter again! You should see:

Your identification has been saved in /home/your_user/.ssh/id_rsa.
Your public key has been saved in /home/you_user/.ssh/id_rsa.pub.

Now you can start saving passwords on you SSH:

 $ ssh-copy-id [email protected]

or if you have your shortcut

$ ssh-copy-id t3

You will be prompted to enter password. It will logout, and you should see:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 't3'"
and check to make sure that only the key(s) you wanted were added.

Congratulations! Now every time you need to login to Talon you just need to type ssh t3 and your good to go!

If you are not familiar with SCP you can find a nice example here

Now since you setup your ssh shortcut to be t3 and the password saved, when you use SCP it will be a lot easier!

Just type

scp path/to/file/my_file t3:.

It will automatically login and enter the password for you!