Using a text editor, create a file in which to store your private key. Log in with a private key. For more information about generating a key on Linux or macOS, see Connect to a server by using SSH on Linux or Mac OS X.
Save Ssh Key Password AgainYour Identification
Enter file in which to save the key (/Users/ you/.ssh/id_rsa): hit enter or specify a different directoryEnter passphrase (empty for no passphrase): Your very very difficult to hack passwordEnter same passphrase again: Your very very difficult to hack password againYour identification has been saved in /Users/ you/.ssh/id_rsa_secret.Your public key has been saved in /Users/ you/.ssh/id_rsa_secret.pub.Scp id_rsa_secret.pub remote_host:~/.ssh/Note, if there is an obscure ssh port (like 97) then you would use:Scp -P 97 id_rsa_secret.pub remote_host:~/.ssh/On the remote machine that you will be sshing to:Chmod 600 /home/ you/.ssh/authorized_keysThen, back on the machine that you will be sshing from:You will then be prompted to enter your passphrase for the key, which will be the password you used when you used ssh-keygen. When prompted, a long, strong passphrase is recommended (use a phrase that only you know. When you execute this command, the ssh-keygen utility prompts you to indicate where to store the key.When the command asks you where to save your key, just hit enter. Enter the following command: ssh-keygen -t rsa.This starts the key generation process.
Make sure in the parameters box on the bottom that “SSH-2 RSA” is selected and that the number of bits is at least 2048. Then go to the Putty folder you created in Program Files and paste them there.Double click on puttygen.exe. Go to your Downloads folder and right click on putty.exe and puttygen.exe and select cut. These wil now be in your Downloads folder.
Then enter a name for your session (ie UT Portal) and click Save. Open it, right click -> paste -> save -> exit.Then scp the public key to the remote machine you will be sshing to.On the remote machine that you will be sshing to: su -Chown you:you /home/you/.ssh/authorized_keysChown you:you /home/you/.ssh -> Just in caseNote: Make sure that you is in the sshd_config file as an AllowedUserType a host name (or ip address) and enter the port number. Then click Save.Do not click the “save public key” button, it saves it in a format that is not readable on any linux/unix machines.Instead, select everything in the section “Public key for pasting into OpenSSH authorized_keys file”, right click and copy.Then go to the ssh-stuff folder and right click and select New -> Text Document.Name it something like sshkey.pub. You should see something like this:You can change the “Key comment” to whatever you want.Then enter a Key passphrase and Confirm the passphrase.Then click “Save private key” and select the ssh-stuff folder you created and enter the filename as something like sshkey.
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